/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.14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:50:50,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:50:50,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:50:50,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:50:50,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:50:50,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:50:50,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:50:50,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:50:50,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:50:50,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:50:50,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:50:50,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:50:50,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:50:50,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:50:50,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:50:50,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:50:50,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:50:50,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:50:50,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:50:50,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:50:50,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:50:50,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:50:50,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:50:50,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:50:50,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 17:50:50,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 17:50:50,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 17:50:50,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 17:50:50,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 17:50:50,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 17:50:50,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:50:50,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:50:50,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:50:50,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:50:50,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:50:50,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:50:50,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:50:50,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:50:50,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:50:50,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:50:50,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:50:50,399 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 17:50:50,437 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:50:50,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:50:50,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:50:50,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:50:50,440 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:50:50,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:50:50,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:50:50,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:50:50,442 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:50:50,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:50:50,442 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:50:50,443 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:50:50,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:50:50,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:50:50,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:50:50,444 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:50:50,444 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:50:50,444 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:50:50,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:50:50,445 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:50:50,445 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:50:50,445 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:50:50,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:50:50,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:50:50,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:50:50,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:50:50,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:50:50,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:50:50,447 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:50:50,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:50:50,448 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:50:50,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:50:50,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:50:50,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:50:50,948 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:50:50,949 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:50:50,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.14.cil.c [2022-10-15 17:50:51,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8e9f7666/e1179f59bce64cfe855893c7e89af763/FLAG6150a7e91 [2022-10-15 17:50:51,880 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:50:51,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.14.cil.c [2022-10-15 17:50:51,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8e9f7666/e1179f59bce64cfe855893c7e89af763/FLAG6150a7e91 [2022-10-15 17:50:52,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8e9f7666/e1179f59bce64cfe855893c7e89af763 [2022-10-15 17:50:52,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:50:52,148 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:50:52,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:50:52,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:50:52,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:50:52,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:50:52" (1/1) ... [2022-10-15 17:50:52,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cdd54e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:52, skipping insertion in model container [2022-10-15 17:50:52,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:50:52" (1/1) ... [2022-10-15 17:50:52,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:50:52,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:50:52,392 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.14.cil.c[669,682] [2022-10-15 17:50:52,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:50:52,645 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:50:52,661 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.14.cil.c[669,682] [2022-10-15 17:50:52,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:50:52,790 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:50:52,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:52 WrapperNode [2022-10-15 17:50:52,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:50:52,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:50:52,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:50:52,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:50:52,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:52" (1/1) ... [2022-10-15 17:50:52,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:52" (1/1) ... [2022-10-15 17:50:52,945 INFO L138 Inliner]: procedures = 52, calls = 68, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 856 [2022-10-15 17:50:52,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:50:52,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:50:52,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:50:52,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:50:52,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:52" (1/1) ... [2022-10-15 17:50:52,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:52" (1/1) ... [2022-10-15 17:50:52,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:52" (1/1) ... [2022-10-15 17:50:52,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:52" (1/1) ... [2022-10-15 17:50:53,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:52" (1/1) ... [2022-10-15 17:50:53,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:52" (1/1) ... [2022-10-15 17:50:53,050 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:52" (1/1) ... [2022-10-15 17:50:53,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:52" (1/1) ... [2022-10-15 17:50:53,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:50:53,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:50:53,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:50:53,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:50:53,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:52" (1/1) ... [2022-10-15 17:50:53,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:50:53,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:50:53,115 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 17:50:53,118 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 17:50:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:50:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-15 17:50:53,172 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-15 17:50:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-10-15 17:50:53,172 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-10-15 17:50:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-15 17:50:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-15 17:50:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-10-15 17:50:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-10-15 17:50:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-15 17:50:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-15 17:50:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-15 17:50:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-15 17:50:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-15 17:50:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-15 17:50:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:50:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:50:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:50:53,319 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:50:53,322 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:50:54,552 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:50:54,568 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:50:54,568 INFO L300 CfgBuilder]: Removed 15 assume(true) statements. [2022-10-15 17:50:54,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:50:54 BoogieIcfgContainer [2022-10-15 17:50:54,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:50:54,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:50:54,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:50:54,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:50:54,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:50:52" (1/3) ... [2022-10-15 17:50:54,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f41a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:50:54, skipping insertion in model container [2022-10-15 17:50:54,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:52" (2/3) ... [2022-10-15 17:50:54,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f41a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:50:54, skipping insertion in model container [2022-10-15 17:50:54,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:50:54" (3/3) ... [2022-10-15 17:50:54,583 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.14.cil.c [2022-10-15 17:50:54,606 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:50:54,606 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:50:54,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:50:54,695 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;@22afceb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:50:54,695 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:50:54,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 389 states, 351 states have (on average 1.6695156695156694) internal successors, (586), 356 states have internal predecessors, (586), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2022-10-15 17:50:54,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-10-15 17:50:54,728 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:54,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:50:54,730 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:54,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:54,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1575760913, now seen corresponding path program 1 times [2022-10-15 17:50:54,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:54,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592252476] [2022-10-15 17:50:54,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:54,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:55,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:55,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:50:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:55,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:50:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:55,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:50:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:55,800 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 17:50:55,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:55,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592252476] [2022-10-15 17:50:55,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592252476] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:55,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:55,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:50:55,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194382239] [2022-10-15 17:50:55,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:55,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:50:55,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:55,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:50:55,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:50:55,869 INFO L87 Difference]: Start difference. First operand has 389 states, 351 states have (on average 1.6695156695156694) internal successors, (586), 356 states have internal predecessors, (586), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 17:50:58,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:58,423 INFO L93 Difference]: Finished difference Result 529 states and 852 transitions. [2022-10-15 17:50:58,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:50:58,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 163 [2022-10-15 17:50:58,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:58,468 INFO L225 Difference]: With dead ends: 529 [2022-10-15 17:50:58,468 INFO L226 Difference]: Without dead ends: 527 [2022-10-15 17:50:58,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:50:58,481 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 1041 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:58,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 1078 Invalid, 787 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-10-15 17:50:58,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-10-15 17:50:58,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 385. [2022-10-15 17:50:58,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 349 states have (on average 1.5787965616045845) internal successors, (551), 352 states have internal predecessors, (551), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-10-15 17:50:58,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 605 transitions. [2022-10-15 17:50:58,599 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 605 transitions. Word has length 163 [2022-10-15 17:50:58,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:58,600 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 605 transitions. [2022-10-15 17:50:58,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 17:50:58,600 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 605 transitions. [2022-10-15 17:50:58,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-15 17:50:58,611 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:58,611 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:50:58,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:50:58,612 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:58,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:58,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1962121163, now seen corresponding path program 1 times [2022-10-15 17:50:58,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:58,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877387307] [2022-10-15 17:50:58,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:58,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:58,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:58,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:50:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:58,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:50:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:59,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:50:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:59,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:50:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:59,033 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 17:50:59,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:59,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877387307] [2022-10-15 17:50:59,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877387307] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:59,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:59,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:50:59,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370338595] [2022-10-15 17:50:59,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:59,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:50:59,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:59,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:50:59,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:50:59,040 INFO L87 Difference]: Start difference. First operand 385 states and 605 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:00,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:00,979 INFO L93 Difference]: Finished difference Result 527 states and 849 transitions. [2022-10-15 17:51:00,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:51:00,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-10-15 17:51:00,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:00,990 INFO L225 Difference]: With dead ends: 527 [2022-10-15 17:51:00,990 INFO L226 Difference]: Without dead ends: 527 [2022-10-15 17:51:00,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:51:00,993 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 1030 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:00,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 1070 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-15 17:51:00,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-10-15 17:51:01,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 385. [2022-10-15 17:51:01,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 349 states have (on average 1.5759312320916905) internal successors, (550), 352 states have internal predecessors, (550), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-10-15 17:51:01,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 604 transitions. [2022-10-15 17:51:01,031 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 604 transitions. Word has length 178 [2022-10-15 17:51:01,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:01,031 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 604 transitions. [2022-10-15 17:51:01,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:01,032 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 604 transitions. [2022-10-15 17:51:01,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-15 17:51:01,037 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:01,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:51:01,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:51:01,038 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:01,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:01,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1294739273, now seen corresponding path program 1 times [2022-10-15 17:51:01,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:01,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357452967] [2022-10-15 17:51:01,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:01,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:01,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:01,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:51:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:01,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:51:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:01,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:51:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:01,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:51:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:01,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:51:01,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:01,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357452967] [2022-10-15 17:51:01,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357452967] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:01,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:01,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:51:01,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294719057] [2022-10-15 17:51:01,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:01,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:51:01,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:01,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:51:01,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:51:01,536 INFO L87 Difference]: Start difference. First operand 385 states and 604 transitions. Second operand has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:05,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:05,320 INFO L93 Difference]: Finished difference Result 1052 states and 1696 transitions. [2022-10-15 17:51:05,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 17:51:05,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-10-15 17:51:05,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:05,333 INFO L225 Difference]: With dead ends: 1052 [2022-10-15 17:51:05,333 INFO L226 Difference]: Without dead ends: 1052 [2022-10-15 17:51:05,335 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 17:51:05,344 INFO L413 NwaCegarLoop]: 721 mSDtfsCounter, 1567 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:05,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 1706 Invalid, 2142 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [124 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-10-15 17:51:05,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2022-10-15 17:51:05,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 764. [2022-10-15 17:51:05,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 700 states have (on average 1.59) internal successors, (1113), 704 states have internal predecessors, (1113), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2022-10-15 17:51:05,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1212 transitions. [2022-10-15 17:51:05,438 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1212 transitions. Word has length 178 [2022-10-15 17:51:05,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:05,438 INFO L495 AbstractCegarLoop]: Abstraction has 764 states and 1212 transitions. [2022-10-15 17:51:05,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:05,439 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1212 transitions. [2022-10-15 17:51:05,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-15 17:51:05,448 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:05,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:51:05,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:51:05,449 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:05,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:05,450 INFO L85 PathProgramCache]: Analyzing trace with hash -91000507, now seen corresponding path program 1 times [2022-10-15 17:51:05,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:05,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937748071] [2022-10-15 17:51:05,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:05,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:05,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:05,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:51:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:05,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:51:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:05,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:51:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:05,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:51:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:05,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:51:05,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:05,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937748071] [2022-10-15 17:51:05,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937748071] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:05,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:05,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:51:05,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593721749] [2022-10-15 17:51:05,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:05,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:51:05,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:05,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:51:05,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:51:05,921 INFO L87 Difference]: Start difference. First operand 764 states and 1212 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:10,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:10,551 INFO L93 Difference]: Finished difference Result 1592 states and 2579 transitions. [2022-10-15 17:51:10,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:51:10,553 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-10-15 17:51:10,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:10,571 INFO L225 Difference]: With dead ends: 1592 [2022-10-15 17:51:10,572 INFO L226 Difference]: Without dead ends: 1592 [2022-10-15 17:51:10,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:51:10,585 INFO L413 NwaCegarLoop]: 1028 mSDtfsCounter, 1595 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 3139 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 2971 SdHoareTripleChecker+Invalid, 3219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 3139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:10,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 2971 Invalid, 3219 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [80 Valid, 3139 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-10-15 17:51:10,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1592 states. [2022-10-15 17:51:10,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1592 to 1116. [2022-10-15 17:51:10,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1024 states have (on average 1.583984375) internal successors, (1622), 1029 states have internal predecessors, (1622), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2022-10-15 17:51:10,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1765 transitions. [2022-10-15 17:51:10,679 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1765 transitions. Word has length 178 [2022-10-15 17:51:10,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:10,680 INFO L495 AbstractCegarLoop]: Abstraction has 1116 states and 1765 transitions. [2022-10-15 17:51:10,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:10,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1765 transitions. [2022-10-15 17:51:10,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-15 17:51:10,685 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:10,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:51:10,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:51:10,697 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:10,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:10,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1860472121, now seen corresponding path program 1 times [2022-10-15 17:51:10,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:10,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461468054] [2022-10-15 17:51:10,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:10,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:10,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:10,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:51:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:11,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:51:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:11,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:51:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:11,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:51:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:11,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:51:11,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:11,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461468054] [2022-10-15 17:51:11,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461468054] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:11,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:11,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:51:11,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575198345] [2022-10-15 17:51:11,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:11,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:51:11,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:11,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:51:11,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:51:11,116 INFO L87 Difference]: Start difference. First operand 1116 states and 1765 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:15,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:15,540 INFO L93 Difference]: Finished difference Result 2595 states and 4198 transitions. [2022-10-15 17:51:15,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:51:15,541 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-10-15 17:51:15,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:15,562 INFO L225 Difference]: With dead ends: 2595 [2022-10-15 17:51:15,562 INFO L226 Difference]: Without dead ends: 2595 [2022-10-15 17:51:15,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:51:15,564 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 1706 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 2785 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 2908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:15,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1725 Valid, 2050 Invalid, 2908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 2785 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-10-15 17:51:15,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2595 states. [2022-10-15 17:51:15,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2595 to 1821. [2022-10-15 17:51:15,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1673 states have (on average 1.5786013150029887) internal successors, (2641), 1680 states have internal predecessors, (2641), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2022-10-15 17:51:15,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2876 transitions. [2022-10-15 17:51:15,668 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2876 transitions. Word has length 178 [2022-10-15 17:51:15,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:15,669 INFO L495 AbstractCegarLoop]: Abstraction has 1821 states and 2876 transitions. [2022-10-15 17:51:15,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:15,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2876 transitions. [2022-10-15 17:51:15,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-15 17:51:15,673 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:15,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:51:15,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:51:15,673 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:15,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:15,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1823226117, now seen corresponding path program 1 times [2022-10-15 17:51:15,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:15,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562687294] [2022-10-15 17:51:15,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:15,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:15,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:15,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:51:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:16,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:51:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:16,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:51:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:16,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:51:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:16,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:51:16,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:16,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562687294] [2022-10-15 17:51:16,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562687294] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:16,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:16,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:51:16,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396376967] [2022-10-15 17:51:16,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:16,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:51:16,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:16,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:51:16,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:51:16,077 INFO L87 Difference]: Start difference. First operand 1821 states and 2876 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:20,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:20,696 INFO L93 Difference]: Finished difference Result 4495 states and 7236 transitions. [2022-10-15 17:51:20,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:51:20,697 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-10-15 17:51:20,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:20,729 INFO L225 Difference]: With dead ends: 4495 [2022-10-15 17:51:20,729 INFO L226 Difference]: Without dead ends: 4495 [2022-10-15 17:51:20,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:51:20,732 INFO L413 NwaCegarLoop]: 1016 mSDtfsCounter, 1590 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1609 SdHoareTripleChecker+Valid, 2959 SdHoareTripleChecker+Invalid, 3223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:20,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1609 Valid, 2959 Invalid, 3223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-10-15 17:51:20,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4495 states. [2022-10-15 17:51:20,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4495 to 3232. [2022-10-15 17:51:20,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3232 states, 2972 states have (on average 1.5743606998654105) internal successors, (4679), 2983 states have internal predecessors, (4679), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2022-10-15 17:51:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3232 states to 3232 states and 5104 transitions. [2022-10-15 17:51:20,865 INFO L78 Accepts]: Start accepts. Automaton has 3232 states and 5104 transitions. Word has length 178 [2022-10-15 17:51:20,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:20,866 INFO L495 AbstractCegarLoop]: Abstraction has 3232 states and 5104 transitions. [2022-10-15 17:51:20,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:20,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3232 states and 5104 transitions. [2022-10-15 17:51:20,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-15 17:51:20,870 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:20,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:51:20,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:51:20,871 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:20,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:20,872 INFO L85 PathProgramCache]: Analyzing trace with hash 418034439, now seen corresponding path program 1 times [2022-10-15 17:51:20,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:20,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403557538] [2022-10-15 17:51:20,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:20,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:21,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:21,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:51:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:21,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:51:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:21,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:51:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:21,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:51:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:21,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:51:21,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:21,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403557538] [2022-10-15 17:51:21,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403557538] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:21,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:21,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:51:21,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997098255] [2022-10-15 17:51:21,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:21,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:51:21,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:21,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:51:21,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:51:21,350 INFO L87 Difference]: Start difference. First operand 3232 states and 5104 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:26,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:26,021 INFO L93 Difference]: Finished difference Result 8286 states and 13308 transitions. [2022-10-15 17:51:26,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:51:26,022 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-10-15 17:51:26,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:26,095 INFO L225 Difference]: With dead ends: 8286 [2022-10-15 17:51:26,095 INFO L226 Difference]: Without dead ends: 8286 [2022-10-15 17:51:26,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:51:26,097 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 1585 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 3118 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 2951 SdHoareTripleChecker+Invalid, 3204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:26,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 2951 Invalid, 3204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3118 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-10-15 17:51:26,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8286 states. [2022-10-15 17:51:26,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8286 to 6068. [2022-10-15 17:51:26,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6068 states, 5584 states have (on average 1.5721704871060171) internal successors, (8779), 5603 states have internal predecessors, (8779), 364 states have call successors, (364), 103 states have call predecessors, (364), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2022-10-15 17:51:26,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6068 states to 6068 states and 9602 transitions. [2022-10-15 17:51:26,356 INFO L78 Accepts]: Start accepts. Automaton has 6068 states and 9602 transitions. Word has length 178 [2022-10-15 17:51:26,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:26,358 INFO L495 AbstractCegarLoop]: Abstraction has 6068 states and 9602 transitions. [2022-10-15 17:51:26,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:26,359 INFO L276 IsEmpty]: Start isEmpty. Operand 6068 states and 9602 transitions. [2022-10-15 17:51:26,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-15 17:51:26,367 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:26,367 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:51:26,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:51:26,368 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:26,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:26,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1864615305, now seen corresponding path program 1 times [2022-10-15 17:51:26,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:26,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001259861] [2022-10-15 17:51:26,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:26,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:26,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:26,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:51:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:26,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:51:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:26,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:51:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:26,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:51:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:26,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:51:26,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:26,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001259861] [2022-10-15 17:51:26,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001259861] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:26,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:26,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:51:26,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636411901] [2022-10-15 17:51:26,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:26,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:51:26,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:26,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:51:26,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:51:26,777 INFO L87 Difference]: Start difference. First operand 6068 states and 9602 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:31,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:31,291 INFO L93 Difference]: Finished difference Result 15872 states and 25506 transitions. [2022-10-15 17:51:31,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:51:31,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-10-15 17:51:31,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:31,387 INFO L225 Difference]: With dead ends: 15872 [2022-10-15 17:51:31,387 INFO L226 Difference]: Without dead ends: 15872 [2022-10-15 17:51:31,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:51:31,388 INFO L413 NwaCegarLoop]: 1003 mSDtfsCounter, 1584 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 3110 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 2946 SdHoareTripleChecker+Invalid, 3196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:31,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 2946 Invalid, 3196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3110 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-10-15 17:51:31,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15872 states. [2022-10-15 17:51:31,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15872 to 11753. [2022-10-15 17:51:31,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11753 states, 10821 states have (on average 1.570742075593753) internal successors, (16997), 10856 states have internal predecessors, (16997), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-10-15 17:51:31,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11753 states to 11753 states and 18670 transitions. [2022-10-15 17:51:31,905 INFO L78 Accepts]: Start accepts. Automaton has 11753 states and 18670 transitions. Word has length 178 [2022-10-15 17:51:31,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:31,909 INFO L495 AbstractCegarLoop]: Abstraction has 11753 states and 18670 transitions. [2022-10-15 17:51:31,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:31,911 INFO L276 IsEmpty]: Start isEmpty. Operand 11753 states and 18670 transitions. [2022-10-15 17:51:31,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-15 17:51:31,926 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:31,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:51:31,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:51:31,926 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:31,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:31,928 INFO L85 PathProgramCache]: Analyzing trace with hash 941447879, now seen corresponding path program 1 times [2022-10-15 17:51:31,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:31,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117258161] [2022-10-15 17:51:31,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:31,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:32,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:32,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:51:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:32,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:51:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:32,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:51:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:32,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:51:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:32,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:51:32,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:32,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117258161] [2022-10-15 17:51:32,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117258161] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:32,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:32,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:51:32,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066894938] [2022-10-15 17:51:32,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:32,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:51:32,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:32,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:51:32,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:51:32,306 INFO L87 Difference]: Start difference. First operand 11753 states and 18670 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:34,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:34,395 INFO L93 Difference]: Finished difference Result 16120 states and 26161 transitions. [2022-10-15 17:51:34,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:51:34,395 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2022-10-15 17:51:34,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:34,464 INFO L225 Difference]: With dead ends: 16120 [2022-10-15 17:51:34,464 INFO L226 Difference]: Without dead ends: 16120 [2022-10-15 17:51:34,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:51:34,465 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 1302 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:34,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 1401 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-10-15 17:51:34,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16120 states. [2022-10-15 17:51:34,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16120 to 11753. [2022-10-15 17:51:34,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11753 states, 10821 states have (on average 1.5676924498660012) internal successors, (16964), 10856 states have internal predecessors, (16964), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-10-15 17:51:34,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11753 states to 11753 states and 18637 transitions. [2022-10-15 17:51:34,905 INFO L78 Accepts]: Start accepts. Automaton has 11753 states and 18637 transitions. Word has length 178 [2022-10-15 17:51:34,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:34,905 INFO L495 AbstractCegarLoop]: Abstraction has 11753 states and 18637 transitions. [2022-10-15 17:51:34,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:34,906 INFO L276 IsEmpty]: Start isEmpty. Operand 11753 states and 18637 transitions. [2022-10-15 17:51:34,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-15 17:51:34,917 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:34,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:51:34,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:51:34,918 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:34,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:34,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1327310281, now seen corresponding path program 1 times [2022-10-15 17:51:34,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:34,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688527667] [2022-10-15 17:51:34,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:34,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:35,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:35,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:51:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:35,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:51:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:35,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:51:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:35,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:51:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:35,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:51:35,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:35,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688527667] [2022-10-15 17:51:35,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688527667] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:35,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:35,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:51:35,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094816081] [2022-10-15 17:51:35,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:35,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:51:35,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:35,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:51:35,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:51:35,255 INFO L87 Difference]: Start difference. First operand 11753 states and 18637 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)