/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.05.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:49:53,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:49:53,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:49:53,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:49:53,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:49:53,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:49:54,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:49:54,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:49:54,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:49:54,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:49:54,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:49:54,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:49:54,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:49:54,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:49:54,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:49:54,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:49:54,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:49:54,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:49:54,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:49:54,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:49:54,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:49:54,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:49:54,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:49:54,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:49:54,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 17:49:54,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 17:49:54,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 17:49:54,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 17:49:54,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 17:49:54,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 17:49:54,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:49:54,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:49:54,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:49:54,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:49:54,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:49:54,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:49:54,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:49:54,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:49:54,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:49:54,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:49:54,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:49:54,081 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 17:49:54,114 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:49:54,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:49:54,115 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:49:54,116 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:49:54,117 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:49:54,117 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:49:54,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:49:54,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:49:54,119 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:49:54,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:49:54,119 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:49:54,119 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:49:54,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:49:54,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:49:54,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:49:54,120 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:49:54,121 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:49:54,121 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:49:54,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:49:54,121 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:49:54,122 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:49:54,122 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:49:54,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:49:54,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:49:54,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:49:54,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:49:54,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:49:54,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:49:54,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:49:54,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:49:54,124 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:49:54,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:49:54,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:49:54,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:49:54,617 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:49:54,618 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:49:54,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.05.cil-2.c [2022-10-15 17:49:54,727 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab110846f/275964322cf74e84980591db6d379fee/FLAG53cee79c5 [2022-10-15 17:49:55,588 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:49:55,589 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.05.cil-2.c [2022-10-15 17:49:55,612 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab110846f/275964322cf74e84980591db6d379fee/FLAG53cee79c5 [2022-10-15 17:49:55,854 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab110846f/275964322cf74e84980591db6d379fee [2022-10-15 17:49:55,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:49:55,864 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:49:55,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:49:55,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:49:55,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:49:55,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:49:55" (1/1) ... [2022-10-15 17:49:55,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51341f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:55, skipping insertion in model container [2022-10-15 17:49:55,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:49:55" (1/1) ... [2022-10-15 17:49:55,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:49:55,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:49:56,131 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.05.cil-2.c[671,684] [2022-10-15 17:49:56,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:49:56,268 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:49:56,285 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.05.cil-2.c[671,684] [2022-10-15 17:49:56,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:49:56,370 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:49:56,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:56 WrapperNode [2022-10-15 17:49:56,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:49:56,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:49:56,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:49:56,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:49:56,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:56" (1/1) ... [2022-10-15 17:49:56,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:56" (1/1) ... [2022-10-15 17:49:56,449 INFO L138 Inliner]: procedures = 38, calls = 47, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 452 [2022-10-15 17:49:56,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:49:56,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:49:56,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:49:56,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:49:56,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:56" (1/1) ... [2022-10-15 17:49:56,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:56" (1/1) ... [2022-10-15 17:49:56,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:56" (1/1) ... [2022-10-15 17:49:56,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:56" (1/1) ... [2022-10-15 17:49:56,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:56" (1/1) ... [2022-10-15 17:49:56,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:56" (1/1) ... [2022-10-15 17:49:56,508 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:56" (1/1) ... [2022-10-15 17:49:56,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:56" (1/1) ... [2022-10-15 17:49:56,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:49:56,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:49:56,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:49:56,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:49:56,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:56" (1/1) ... [2022-10-15 17:49:56,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:49:56,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:56,574 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 17:49:56,593 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 17:49:56,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:49:56,708 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-10-15 17:49:56,708 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-10-15 17:49:56,708 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-15 17:49:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-15 17:49:56,709 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-15 17:49:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-15 17:49:56,710 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-10-15 17:49:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-10-15 17:49:56,711 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-15 17:49:56,711 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-15 17:49:56,711 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-15 17:49:56,712 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-15 17:49:56,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:49:56,714 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-15 17:49:56,714 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-15 17:49:56,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:49:56,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:49:56,901 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:49:56,905 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:49:57,791 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:49:57,805 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:49:57,805 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-10-15 17:49:57,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:49:57 BoogieIcfgContainer [2022-10-15 17:49:57,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:49:57,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:49:57,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:49:57,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:49:57,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:49:55" (1/3) ... [2022-10-15 17:49:57,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6026ba3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:49:57, skipping insertion in model container [2022-10-15 17:49:57,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:56" (2/3) ... [2022-10-15 17:49:57,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6026ba3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:49:57, skipping insertion in model container [2022-10-15 17:49:57,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:49:57" (3/3) ... [2022-10-15 17:49:57,821 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.05.cil-2.c [2022-10-15 17:49:57,850 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:49:57,851 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:49:57,923 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:49:57,934 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;@3d9ff140, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:49:57,935 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:49:57,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 216 states, 185 states have (on average 1.6378378378378378) internal successors, (303), 190 states have internal predecessors, (303), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2022-10-15 17:49:57,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-10-15 17:49:57,960 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:57,961 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] [2022-10-15 17:49:57,962 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:57,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:57,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1455752690, now seen corresponding path program 1 times [2022-10-15 17:49:57,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:57,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158907507] [2022-10-15 17:49:57,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:57,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:58,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:58,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:58,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 17:49:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:58,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 17:49:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:58,998 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 17:49:58,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:58,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158907507] [2022-10-15 17:49:59,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158907507] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:59,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:59,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:49:59,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347171317] [2022-10-15 17:49:59,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:59,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:49:59,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:59,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:49:59,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:59,089 INFO L87 Difference]: Start difference. First operand has 216 states, 185 states have (on average 1.6378378378378378) internal successors, (303), 190 states have internal predecessors, (303), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 17:50:01,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:01,086 INFO L93 Difference]: Finished difference Result 549 states and 856 transitions. [2022-10-15 17:50:01,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 17:50:01,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 86 [2022-10-15 17:50:01,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:01,125 INFO L225 Difference]: With dead ends: 549 [2022-10-15 17:50:01,125 INFO L226 Difference]: Without dead ends: 545 [2022-10-15 17:50:01,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:50:01,138 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 770 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:01,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 959 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-15 17:50:01,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-10-15 17:50:01,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 411. [2022-10-15 17:50:01,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 361 states have (on average 1.559556786703601) internal successors, (563), 365 states have internal predecessors, (563), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2022-10-15 17:50:01,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 634 transitions. [2022-10-15 17:50:01,259 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 634 transitions. Word has length 86 [2022-10-15 17:50:01,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:01,260 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 634 transitions. [2022-10-15 17:50:01,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 17:50:01,261 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 634 transitions. [2022-10-15 17:50:01,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:50:01,267 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:01,267 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] [2022-10-15 17:50:01,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:50:01,268 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:01,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:01,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1325178626, now seen corresponding path program 1 times [2022-10-15 17:50:01,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:01,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812140897] [2022-10-15 17:50:01,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:01,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:01,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:01,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:50:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:01,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 17:50:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:01,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 17:50:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:01,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 17:50:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:01,706 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 17:50:01,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:01,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812140897] [2022-10-15 17:50:01,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812140897] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:01,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:01,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:01,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232556621] [2022-10-15 17:50:01,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:01,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:01,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:01,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:01,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:01,714 INFO L87 Difference]: Start difference. First operand 411 states and 634 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:03,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:03,816 INFO L93 Difference]: Finished difference Result 814 states and 1277 transitions. [2022-10-15 17:50:03,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:50:03,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 101 [2022-10-15 17:50:03,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:03,835 INFO L225 Difference]: With dead ends: 814 [2022-10-15 17:50:03,836 INFO L226 Difference]: Without dead ends: 814 [2022-10-15 17:50:03,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:50:03,839 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 767 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 1557 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:03,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 1625 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1557 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-15 17:50:03,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2022-10-15 17:50:03,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 597. [2022-10-15 17:50:03,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 526 states have (on average 1.553231939163498) internal successors, (817), 531 states have internal predecessors, (817), 49 states have call successors, (49), 19 states have call predecessors, (49), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2022-10-15 17:50:03,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 918 transitions. [2022-10-15 17:50:03,916 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 918 transitions. Word has length 101 [2022-10-15 17:50:03,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:03,917 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 918 transitions. [2022-10-15 17:50:03,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:03,918 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 918 transitions. [2022-10-15 17:50:03,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:50:03,921 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:03,921 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] [2022-10-15 17:50:03,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:50:03,922 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:03,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:03,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1093305852, now seen corresponding path program 1 times [2022-10-15 17:50:03,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:03,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770295313] [2022-10-15 17:50:03,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:03,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:04,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:04,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:50:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:04,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 17:50:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:04,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 17:50:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:04,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 17:50:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:04,242 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 17:50:04,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:04,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770295313] [2022-10-15 17:50:04,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770295313] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:04,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:04,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:04,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958148840] [2022-10-15 17:50:04,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:04,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:04,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:04,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:04,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:04,247 INFO L87 Difference]: Start difference. First operand 597 states and 918 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:06,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:06,274 INFO L93 Difference]: Finished difference Result 1317 states and 2064 transitions. [2022-10-15 17:50:06,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:50:06,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 101 [2022-10-15 17:50:06,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:06,289 INFO L225 Difference]: With dead ends: 1317 [2022-10-15 17:50:06,289 INFO L226 Difference]: Without dead ends: 1317 [2022-10-15 17:50:06,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:50:06,292 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 764 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:06,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 1617 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-15 17:50:06,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2022-10-15 17:50:06,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 970. [2022-10-15 17:50:06,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 857 states have (on average 1.5472578763127187) internal successors, (1326), 864 states have internal predecessors, (1326), 77 states have call successors, (77), 31 states have call predecessors, (77), 34 states have return successors, (88), 78 states have call predecessors, (88), 75 states have call successors, (88) [2022-10-15 17:50:06,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1491 transitions. [2022-10-15 17:50:06,367 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1491 transitions. Word has length 101 [2022-10-15 17:50:06,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:06,368 INFO L495 AbstractCegarLoop]: Abstraction has 970 states and 1491 transitions. [2022-10-15 17:50:06,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:06,368 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1491 transitions. [2022-10-15 17:50:06,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:50:06,373 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:06,373 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] [2022-10-15 17:50:06,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:50:06,374 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:06,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:06,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1322530498, now seen corresponding path program 1 times [2022-10-15 17:50:06,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:06,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849950066] [2022-10-15 17:50:06,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:06,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:06,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:06,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:50:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:06,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 17:50:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:06,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 17:50:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:06,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 17:50:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:06,780 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 17:50:06,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:06,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849950066] [2022-10-15 17:50:06,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849950066] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:06,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:06,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:06,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104095538] [2022-10-15 17:50:06,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:06,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:06,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:06,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:06,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:06,786 INFO L87 Difference]: Start difference. First operand 970 states and 1491 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:08,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:08,963 INFO L93 Difference]: Finished difference Result 2273 states and 3550 transitions. [2022-10-15 17:50:08,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:50:08,965 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 101 [2022-10-15 17:50:08,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:08,985 INFO L225 Difference]: With dead ends: 2273 [2022-10-15 17:50:08,986 INFO L226 Difference]: Without dead ends: 2273 [2022-10-15 17:50:08,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:50:08,989 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 760 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:08,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 1613 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-15 17:50:08,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2022-10-15 17:50:09,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 1717. [2022-10-15 17:50:09,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1520 states have (on average 1.5421052631578946) internal successors, (2344), 1531 states have internal predecessors, (2344), 133 states have call successors, (133), 55 states have call predecessors, (133), 62 states have return successors, (166), 138 states have call predecessors, (166), 131 states have call successors, (166) [2022-10-15 17:50:09,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2643 transitions. [2022-10-15 17:50:09,076 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2643 transitions. Word has length 101 [2022-10-15 17:50:09,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:09,077 INFO L495 AbstractCegarLoop]: Abstraction has 1717 states and 2643 transitions. [2022-10-15 17:50:09,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:09,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2643 transitions. [2022-10-15 17:50:09,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:50:09,081 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:09,081 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] [2022-10-15 17:50:09,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:50:09,082 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:09,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:09,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1647580604, now seen corresponding path program 1 times [2022-10-15 17:50:09,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:09,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463623832] [2022-10-15 17:50:09,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:09,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:09,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:09,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:50:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:09,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 17:50:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:09,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 17:50:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:09,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 17:50:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:09,353 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 17:50:09,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:09,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463623832] [2022-10-15 17:50:09,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463623832] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:09,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:09,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:09,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224509164] [2022-10-15 17:50:09,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:09,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:09,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:09,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:09,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:09,358 INFO L87 Difference]: Start difference. First operand 1717 states and 2643 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:11,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:11,346 INFO L93 Difference]: Finished difference Result 4183 states and 6532 transitions. [2022-10-15 17:50:11,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:50:11,347 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 101 [2022-10-15 17:50:11,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:11,381 INFO L225 Difference]: With dead ends: 4183 [2022-10-15 17:50:11,381 INFO L226 Difference]: Without dead ends: 4183 [2022-10-15 17:50:11,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:50:11,383 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 759 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:11,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 1607 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-15 17:50:11,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4183 states. [2022-10-15 17:50:11,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4183 to 3216. [2022-10-15 17:50:11,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 2851 states have (on average 1.5384075762890215) internal successors, (4386), 2870 states have internal predecessors, (4386), 245 states have call successors, (245), 103 states have call predecessors, (245), 118 states have return successors, (340), 258 states have call predecessors, (340), 243 states have call successors, (340) [2022-10-15 17:50:11,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 4971 transitions. [2022-10-15 17:50:11,542 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 4971 transitions. Word has length 101 [2022-10-15 17:50:11,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:11,542 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 4971 transitions. [2022-10-15 17:50:11,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:11,543 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 4971 transitions. [2022-10-15 17:50:11,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:50:11,547 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:11,548 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] [2022-10-15 17:50:11,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:50:11,548 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:11,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:11,549 INFO L85 PathProgramCache]: Analyzing trace with hash -80822654, now seen corresponding path program 1 times [2022-10-15 17:50:11,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:11,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501565578] [2022-10-15 17:50:11,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:11,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:11,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:11,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:50:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:11,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 17:50:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:11,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 17:50:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:11,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 17:50:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:11,827 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 17:50:11,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:11,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501565578] [2022-10-15 17:50:11,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501565578] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:11,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:11,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:11,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613497617] [2022-10-15 17:50:11,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:11,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:11,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:11,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:11,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:11,831 INFO L87 Difference]: Start difference. First operand 3216 states and 4971 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:13,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:13,878 INFO L93 Difference]: Finished difference Result 9246 states and 14390 transitions. [2022-10-15 17:50:13,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 17:50:13,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 101 [2022-10-15 17:50:13,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:13,945 INFO L225 Difference]: With dead ends: 9246 [2022-10-15 17:50:13,945 INFO L226 Difference]: Without dead ends: 9246 [2022-10-15 17:50:13,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:50:13,952 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 1026 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:13,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 1113 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-15 17:50:13,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9246 states. [2022-10-15 17:50:14,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9246 to 6196. [2022-10-15 17:50:14,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6196 states, 5511 states have (on average 1.5405552531301034) internal successors, (8490), 5546 states have internal predecessors, (8490), 453 states have call successors, (453), 199 states have call predecessors, (453), 230 states have return successors, (726), 482 states have call predecessors, (726), 451 states have call successors, (726) [2022-10-15 17:50:14,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6196 states to 6196 states and 9669 transitions. [2022-10-15 17:50:14,325 INFO L78 Accepts]: Start accepts. Automaton has 6196 states and 9669 transitions. Word has length 101 [2022-10-15 17:50:14,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:14,325 INFO L495 AbstractCegarLoop]: Abstraction has 6196 states and 9669 transitions. [2022-10-15 17:50:14,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:14,326 INFO L276 IsEmpty]: Start isEmpty. Operand 6196 states and 9669 transitions. [2022-10-15 17:50:14,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:50:14,338 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:14,338 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] [2022-10-15 17:50:14,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:50:14,339 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:14,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:14,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1223325120, now seen corresponding path program 1 times [2022-10-15 17:50:14,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:14,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944203514] [2022-10-15 17:50:14,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:14,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:14,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:14,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:50:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:14,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 17:50:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:14,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 17:50:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:14,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 17:50:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:14,707 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 17:50:14,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:14,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944203514] [2022-10-15 17:50:14,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944203514] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:14,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:14,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:14,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128488660] [2022-10-15 17:50:14,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:14,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:14,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:14,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:14,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:14,719 INFO L87 Difference]: Start difference. First operand 6196 states and 9669 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:16,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:16,893 INFO L93 Difference]: Finished difference Result 17632 states and 27632 transitions. [2022-10-15 17:50:16,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 17:50:16,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 101 [2022-10-15 17:50:16,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:17,011 INFO L225 Difference]: With dead ends: 17632 [2022-10-15 17:50:17,011 INFO L226 Difference]: Without dead ends: 17632 [2022-10-15 17:50:17,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:50:17,013 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 795 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 1744 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:17,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 1656 Invalid, 1818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1744 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-15 17:50:17,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17632 states. [2022-10-15 17:50:17,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17632 to 11817. [2022-10-15 17:50:17,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11817 states, 10508 states have (on average 1.5352112676056338) internal successors, (16132), 10575 states have internal predecessors, (16132), 853 states have call successors, (853), 391 states have call predecessors, (853), 454 states have return successors, (1644), 914 states have call predecessors, (1644), 851 states have call successors, (1644) [2022-10-15 17:50:17,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11817 states to 11817 states and 18629 transitions. [2022-10-15 17:50:17,617 INFO L78 Accepts]: Start accepts. Automaton has 11817 states and 18629 transitions. Word has length 101 [2022-10-15 17:50:17,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:17,620 INFO L495 AbstractCegarLoop]: Abstraction has 11817 states and 18629 transitions. [2022-10-15 17:50:17,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:17,620 INFO L276 IsEmpty]: Start isEmpty. Operand 11817 states and 18629 transitions. [2022-10-15 17:50:17,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:50:17,637 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:17,637 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] [2022-10-15 17:50:17,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:50:17,638 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:17,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:17,639 INFO L85 PathProgramCache]: Analyzing trace with hash -983085374, now seen corresponding path program 1 times [2022-10-15 17:50:17,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:17,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004200035] [2022-10-15 17:50:17,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:17,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:17,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:17,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:50:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:17,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 17:50:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:17,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 17:50:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:17,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 17:50:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:17,905 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 17:50:17,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:17,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004200035] [2022-10-15 17:50:17,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004200035] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:17,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:17,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:17,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517612550] [2022-10-15 17:50:17,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:17,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:17,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:17,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:17,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:17,908 INFO L87 Difference]: Start difference. First operand 11817 states and 18629 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:20,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:20,023 INFO L93 Difference]: Finished difference Result 33190 states and 52494 transitions. [2022-10-15 17:50:20,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 17:50:20,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 101 [2022-10-15 17:50:20,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:20,207 INFO L225 Difference]: With dead ends: 33190 [2022-10-15 17:50:20,207 INFO L226 Difference]: Without dead ends: 33190 [2022-10-15 17:50:20,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:50:20,209 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 887 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 1503 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 1580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:20,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 1579 Invalid, 1580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1503 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-15 17:50:20,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33190 states. [2022-10-15 17:50:21,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33190 to 23346. [2022-10-15 17:50:21,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23346 states, 20821 states have (on average 1.5379664761538832) internal successors, (32022), 20952 states have internal predecessors, (32022), 1621 states have call successors, (1621), 775 states have call predecessors, (1621), 902 states have return successors, (3934), 1746 states have call predecessors, (3934), 1619 states have call successors, (3934) [2022-10-15 17:50:21,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23346 states to 23346 states and 37577 transitions. [2022-10-15 17:50:21,561 INFO L78 Accepts]: Start accepts. Automaton has 23346 states and 37577 transitions. Word has length 101 [2022-10-15 17:50:21,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:21,561 INFO L495 AbstractCegarLoop]: Abstraction has 23346 states and 37577 transitions. [2022-10-15 17:50:21,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:21,563 INFO L276 IsEmpty]: Start isEmpty. Operand 23346 states and 37577 transitions. [2022-10-15 17:50:21,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:50:21,589 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:21,589 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] [2022-10-15 17:50:21,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:50:21,589 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:21,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:21,591 INFO L85 PathProgramCache]: Analyzing trace with hash -144051712, now seen corresponding path program 1 times [2022-10-15 17:50:21,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:21,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689028570] [2022-10-15 17:50:21,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:21,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:21,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:21,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:50:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:21,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 17:50:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:21,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 17:50:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:21,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 17:50:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:21,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:50:21,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:21,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689028570] [2022-10-15 17:50:21,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689028570] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:21,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:21,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:21,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482301299] [2022-10-15 17:50:21,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:21,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:21,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:21,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:21,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:21,958 INFO L87 Difference]: Start difference. First operand 23346 states and 37577 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:24,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:24,278 INFO L93 Difference]: Finished difference Result 63732 states and 102912 transitions. [2022-10-15 17:50:24,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 17:50:24,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 101 [2022-10-15 17:50:24,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:24,771 INFO L225 Difference]: With dead ends: 63732 [2022-10-15 17:50:24,774 INFO L226 Difference]: Without dead ends: 63732 [2022-10-15 17:50:24,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:50:24,779 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 847 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:24,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 1574 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-15 17:50:24,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63732 states. [2022-10-15 17:50:26,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63732 to 46339. [2022-10-15 17:50:27,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46339 states, 41446 states have (on average 1.5408965883318053) internal successors, (63864), 41705 states have internal predecessors, (63864), 3093 states have call successors, (3093), 1543 states have call predecessors, (3093), 1798 states have return successors, (9908), 3346 states have call predecessors, (9908), 3091 states have call successors, (9908) [2022-10-15 17:50:27,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46339 states to 46339 states and 76865 transitions. [2022-10-15 17:50:27,738 INFO L78 Accepts]: Start accepts. Automaton has 46339 states and 76865 transitions. Word has length 101 [2022-10-15 17:50:27,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:27,738 INFO L495 AbstractCegarLoop]: Abstraction has 46339 states and 76865 transitions. [2022-10-15 17:50:27,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:27,739 INFO L276 IsEmpty]: Start isEmpty. Operand 46339 states and 76865 transitions. [2022-10-15 17:50:27,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:50:27,796 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:27,797 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] [2022-10-15 17:50:27,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:50:27,797 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:27,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:27,798 INFO L85 PathProgramCache]: Analyzing trace with hash -116986110, now seen corresponding path program 1 times [2022-10-15 17:50:27,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:27,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869764088] [2022-10-15 17:50:27,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:27,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:27,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:27,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:50:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:28,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 17:50:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:28,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 17:50:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:28,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 17:50:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:28,098 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 17:50:28,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:28,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869764088] [2022-10-15 17:50:28,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869764088] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:28,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:28,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:28,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651953498] [2022-10-15 17:50:28,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:28,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:28,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:28,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:28,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:28,103 INFO L87 Difference]: Start difference. First operand 46339 states and 76865 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:31,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:31,776 INFO L93 Difference]: Finished difference Result 122514 states and 204414 transitions. [2022-10-15 17:50:31,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 17:50:31,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 101 [2022-10-15 17:50:31,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:32,594 INFO L225 Difference]: With dead ends: 122514 [2022-10-15 17:50:32,595 INFO L226 Difference]: Without dead ends: 122514 [2022-10-15 17:50:32,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:50:32,599 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 763 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 1616 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 1690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:32,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 1597 Invalid, 1690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1616 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-10-15 17:50:32,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122514 states. [2022-10-15 17:50:36,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122514 to 92196. [2022-10-15 17:50:37,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92196 states, 82695 states have (on average 1.5439143841828407) internal successors, (127674), 83210 states have internal predecessors, (127674), 5909 states have call successors, (5909), 3079 states have call predecessors, (5909), 3590 states have return successors, (26102), 6418 states have call predecessors, (26102), 5907 states have call successors, (26102) [2022-10-15 17:50:37,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92196 states to 92196 states and 159685 transitions. [2022-10-15 17:50:37,835 INFO L78 Accepts]: Start accepts. Automaton has 92196 states and 159685 transitions. Word has length 101 [2022-10-15 17:50:37,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:37,836 INFO L495 AbstractCegarLoop]: Abstraction has 92196 states and 159685 transitions. [2022-10-15 17:50:37,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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 17:50:37,836 INFO L276 IsEmpty]: Start isEmpty. Operand 92196 states and 159685 transitions. [2022-10-15 17:50:37,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 17:50:37,954 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:37,955 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] [2022-10-15 17:50:37,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:50:37,955 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:37,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:37,957 INFO L85 PathProgramCache]: Analyzing trace with hash 2100644288, now seen corresponding path program 1 times [2022-10-15 17:50:37,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:37,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551497913] [2022-10-15 17:50:37,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:37,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:38,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:38,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:50:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:38,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 17:50:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:38,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 17:50:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:38,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 17:50:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:38,200 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 17:50:38,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:38,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551497913] [2022-10-15 17:50:38,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551497913] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:38,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:38,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:38,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564350824] [2022-10-15 17:50:38,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:38,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:38,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:38,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:38,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:38,204 INFO L87 Difference]: Start difference. First operand 92196 states and 159685 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 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)