/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/pc_sfifo_3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 04:21:22,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 04:21:22,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 04:21:22,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 04:21:22,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 04:21:22,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 04:21:22,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 04:21:22,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 04:21:22,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 04:21:22,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 04:21:22,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 04:21:22,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 04:21:22,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 04:21:22,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 04:21:22,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 04:21:22,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 04:21:22,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 04:21:22,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 04:21:22,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 04:21:22,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 04:21:22,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 04:21:22,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 04:21:22,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 04:21:22,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 04:21:22,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 04:21:22,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 04:21:22,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 04:21:22,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 04:21:22,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 04:21:22,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 04:21:22,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 04:21:22,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 04:21:22,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 04:21:22,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 04:21:22,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 04:21:22,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 04:21:22,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 04:21:22,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 04:21:22,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 04:21:22,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 04:21:22,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 04:21:22,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-16 04:21:22,423 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 04:21:22,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 04:21:22,424 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 04:21:22,424 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 04:21:22,425 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 04:21:22,426 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 04:21:22,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 04:21:22,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 04:21:22,427 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 04:21:22,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 04:21:22,428 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 04:21:22,428 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 04:21:22,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 04:21:22,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 04:21:22,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 04:21:22,429 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 04:21:22,429 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 04:21:22,429 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 04:21:22,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 04:21:22,430 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 04:21:22,430 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 04:21:22,430 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 04:21:22,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 04:21:22,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 04:21:22,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 04:21:22,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 04:21:22,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 04:21:22,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 04:21:22,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 04:21:22,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 04:21:22,432 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 04:21:22,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 04:21:22,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 04:21:22,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 04:21:22,908 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 04:21:22,908 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 04:21:22,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2022-10-16 04:21:23,005 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190b82472/7f59afca89d143eaae045d41e57183e7/FLAG8f050a376 [2022-10-16 04:21:23,732 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 04:21:23,733 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2022-10-16 04:21:23,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190b82472/7f59afca89d143eaae045d41e57183e7/FLAG8f050a376 [2022-10-16 04:21:24,084 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190b82472/7f59afca89d143eaae045d41e57183e7 [2022-10-16 04:21:24,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 04:21:24,097 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 04:21:24,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 04:21:24,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 04:21:24,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 04:21:24,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:21:24" (1/1) ... [2022-10-16 04:21:24,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb2a99a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:24, skipping insertion in model container [2022-10-16 04:21:24,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:21:24" (1/1) ... [2022-10-16 04:21:24,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 04:21:24,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 04:21:24,371 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/pc_sfifo_3.cil.c[640,653] [2022-10-16 04:21:24,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 04:21:24,454 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 04:21:24,468 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/pc_sfifo_3.cil.c[640,653] [2022-10-16 04:21:24,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 04:21:24,565 INFO L208 MainTranslator]: Completed translation [2022-10-16 04:21:24,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:24 WrapperNode [2022-10-16 04:21:24,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 04:21:24,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 04:21:24,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 04:21:24,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 04:21:24,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:24" (1/1) ... [2022-10-16 04:21:24,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:24" (1/1) ... [2022-10-16 04:21:24,672 INFO L138 Inliner]: procedures = 31, calls = 35, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 225 [2022-10-16 04:21:24,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 04:21:24,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 04:21:24,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 04:21:24,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 04:21:24,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:24" (1/1) ... [2022-10-16 04:21:24,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:24" (1/1) ... [2022-10-16 04:21:24,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:24" (1/1) ... [2022-10-16 04:21:24,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:24" (1/1) ... [2022-10-16 04:21:24,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:24" (1/1) ... [2022-10-16 04:21:24,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:24" (1/1) ... [2022-10-16 04:21:24,740 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:24" (1/1) ... [2022-10-16 04:21:24,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:24" (1/1) ... [2022-10-16 04:21:24,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 04:21:24,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 04:21:24,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 04:21:24,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 04:21:24,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:24" (1/1) ... [2022-10-16 04:21:24,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 04:21:24,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:21:24,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 04:21:24,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 04:21:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 04:21:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-10-16 04:21:24,876 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-10-16 04:21:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2022-10-16 04:21:24,876 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2022-10-16 04:21:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-16 04:21:24,877 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-16 04:21:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-16 04:21:24,877 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-16 04:21:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-16 04:21:24,877 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-16 04:21:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-16 04:21:24,878 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-16 04:21:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 04:21:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-16 04:21:24,878 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-16 04:21:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 04:21:24,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 04:21:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2022-10-16 04:21:24,879 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2022-10-16 04:21:24,988 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 04:21:24,991 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 04:21:25,514 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !(1 == ~q_free~0); [2022-10-16 04:21:25,515 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2022-10-16 04:21:25,557 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 04:21:25,578 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 04:21:25,578 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 04:21:25,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:21:25 BoogieIcfgContainer [2022-10-16 04:21:25,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 04:21:25,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 04:21:25,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 04:21:25,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 04:21:25,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 04:21:24" (1/3) ... [2022-10-16 04:21:25,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f03870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:21:25, skipping insertion in model container [2022-10-16 04:21:25,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:24" (2/3) ... [2022-10-16 04:21:25,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f03870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:21:25, skipping insertion in model container [2022-10-16 04:21:25,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:21:25" (3/3) ... [2022-10-16 04:21:25,594 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2022-10-16 04:21:25,626 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 04:21:25,626 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 04:21:25,700 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 04:21:25,710 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;@6c7dc484, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 04:21:25,711 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 04:21:25,717 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 93 states have (on average 1.5376344086021505) internal successors, (143), 98 states have internal predecessors, (143), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-10-16 04:21:25,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-16 04:21:25,731 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:25,732 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] [2022-10-16 04:21:25,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:25,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:25,740 INFO L85 PathProgramCache]: Analyzing trace with hash -840746981, now seen corresponding path program 1 times [2022-10-16 04:21:25,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:25,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336360524] [2022-10-16 04:21:25,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:25,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:26,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:26,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:26,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 04:21:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:26,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:26,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:26,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 04:21:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:26,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:21:26,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:26,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336360524] [2022-10-16 04:21:26,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336360524] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:26,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:26,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 04:21:26,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69945205] [2022-10-16 04:21:26,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:26,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 04:21:26,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:26,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 04:21:26,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:21:26,553 INFO L87 Difference]: Start difference. First operand has 120 states, 93 states have (on average 1.5376344086021505) internal successors, (143), 98 states have internal predecessors, (143), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 04:21:27,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:27,619 INFO L93 Difference]: Finished difference Result 274 states and 382 transitions. [2022-10-16 04:21:27,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 04:21:27,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 46 [2022-10-16 04:21:27,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:27,653 INFO L225 Difference]: With dead ends: 274 [2022-10-16 04:21:27,653 INFO L226 Difference]: Without dead ends: 270 [2022-10-16 04:21:27,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:21:27,662 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 477 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:27,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 536 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 04:21:27,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-10-16 04:21:27,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 228. [2022-10-16 04:21:27,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 181 states have (on average 1.430939226519337) internal successors, (259), 186 states have internal predecessors, (259), 29 states have call successors, (29), 15 states have call predecessors, (29), 16 states have return successors, (32), 28 states have call predecessors, (32), 27 states have call successors, (32) [2022-10-16 04:21:27,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 320 transitions. [2022-10-16 04:21:27,751 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 320 transitions. Word has length 46 [2022-10-16 04:21:27,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:27,752 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 320 transitions. [2022-10-16 04:21:27,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 04:21:27,753 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 320 transitions. [2022-10-16 04:21:27,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 04:21:27,758 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:27,758 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] [2022-10-16 04:21:27,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 04:21:27,759 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:27,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:27,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1175675991, now seen corresponding path program 1 times [2022-10-16 04:21:27,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:27,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972022116] [2022-10-16 04:21:27,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:27,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:27,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:27,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:28,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 04:21:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:28,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:28,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:28,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 04:21:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:28,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 04:21:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:28,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:21:28,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:28,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972022116] [2022-10-16 04:21:28,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972022116] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:28,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:28,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 04:21:28,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241536646] [2022-10-16 04:21:28,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:28,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 04:21:28,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:28,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 04:21:28,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:21:28,138 INFO L87 Difference]: Start difference. First operand 228 states and 320 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-16 04:21:29,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:29,130 INFO L93 Difference]: Finished difference Result 419 states and 597 transitions. [2022-10-16 04:21:29,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 04:21:29,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 64 [2022-10-16 04:21:29,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:29,144 INFO L225 Difference]: With dead ends: 419 [2022-10-16 04:21:29,144 INFO L226 Difference]: Without dead ends: 419 [2022-10-16 04:21:29,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2022-10-16 04:21:29,153 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 368 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:29,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 991 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 04:21:29,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-10-16 04:21:29,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 340. [2022-10-16 04:21:29,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 271 states have (on average 1.4243542435424354) internal successors, (386), 278 states have internal predecessors, (386), 42 states have call successors, (42), 22 states have call predecessors, (42), 25 states have return successors, (53), 42 states have call predecessors, (53), 40 states have call successors, (53) [2022-10-16 04:21:29,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 481 transitions. [2022-10-16 04:21:29,250 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 481 transitions. Word has length 64 [2022-10-16 04:21:29,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:29,251 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 481 transitions. [2022-10-16 04:21:29,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-16 04:21:29,251 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 481 transitions. [2022-10-16 04:21:29,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 04:21:29,258 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:29,259 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] [2022-10-16 04:21:29,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 04:21:29,259 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:29,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:29,262 INFO L85 PathProgramCache]: Analyzing trace with hash -852910119, now seen corresponding path program 1 times [2022-10-16 04:21:29,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:29,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227623884] [2022-10-16 04:21:29,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:29,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:29,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:29,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:29,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 04:21:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:29,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:29,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:29,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 04:21:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:29,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 04:21:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:29,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:21:29,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:29,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227623884] [2022-10-16 04:21:29,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227623884] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:29,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:29,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-16 04:21:29,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283883765] [2022-10-16 04:21:29,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:29,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 04:21:29,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:29,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 04:21:29,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 04:21:29,587 INFO L87 Difference]: Start difference. First operand 340 states and 481 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2022-10-16 04:21:31,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:31,228 INFO L93 Difference]: Finished difference Result 1565 states and 2099 transitions. [2022-10-16 04:21:31,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 04:21:31,229 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 64 [2022-10-16 04:21:31,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:31,240 INFO L225 Difference]: With dead ends: 1565 [2022-10-16 04:21:31,240 INFO L226 Difference]: Without dead ends: 1565 [2022-10-16 04:21:31,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 04:21:31,243 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 1616 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:31,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 1206 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 04:21:31,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2022-10-16 04:21:31,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1393. [2022-10-16 04:21:31,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1119 states have (on average 1.3771224307417338) internal successors, (1541), 1141 states have internal predecessors, (1541), 152 states have call successors, (152), 105 states have call predecessors, (152), 120 states have return successors, (186), 148 states have call predecessors, (186), 150 states have call successors, (186) [2022-10-16 04:21:31,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1879 transitions. [2022-10-16 04:21:31,328 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1879 transitions. Word has length 64 [2022-10-16 04:21:31,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:31,329 INFO L495 AbstractCegarLoop]: Abstraction has 1393 states and 1879 transitions. [2022-10-16 04:21:31,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2022-10-16 04:21:31,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1879 transitions. [2022-10-16 04:21:31,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 04:21:31,332 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:31,333 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] [2022-10-16 04:21:31,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 04:21:31,333 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:31,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:31,334 INFO L85 PathProgramCache]: Analyzing trace with hash -654866484, now seen corresponding path program 1 times [2022-10-16 04:21:31,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:31,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002285606] [2022-10-16 04:21:31,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:31,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:31,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:31,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:31,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 04:21:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:31,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:31,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:31,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 04:21:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:31,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 04:21:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:31,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:21:31,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:31,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002285606] [2022-10-16 04:21:31,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002285606] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:31,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:31,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 04:21:31,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940866786] [2022-10-16 04:21:31,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:31,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 04:21:31,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:31,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 04:21:31,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-10-16 04:21:31,511 INFO L87 Difference]: Start difference. First operand 1393 states and 1879 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 04:21:32,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:32,023 INFO L93 Difference]: Finished difference Result 1541 states and 2067 transitions. [2022-10-16 04:21:32,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 04:21:32,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2022-10-16 04:21:32,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:32,033 INFO L225 Difference]: With dead ends: 1541 [2022-10-16 04:21:32,033 INFO L226 Difference]: Without dead ends: 1541 [2022-10-16 04:21:32,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 04:21:32,035 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 130 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:32,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 689 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 04:21:32,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2022-10-16 04:21:32,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1433. [2022-10-16 04:21:32,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1151 states have (on average 1.361424847958297) internal successors, (1567), 1173 states have internal predecessors, (1567), 152 states have call successors, (152), 105 states have call predecessors, (152), 128 states have return successors, (194), 156 states have call predecessors, (194), 150 states have call successors, (194) [2022-10-16 04:21:32,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 1913 transitions. [2022-10-16 04:21:32,100 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 1913 transitions. Word has length 65 [2022-10-16 04:21:32,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:32,100 INFO L495 AbstractCegarLoop]: Abstraction has 1433 states and 1913 transitions. [2022-10-16 04:21:32,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 04:21:32,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 1913 transitions. [2022-10-16 04:21:32,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 04:21:32,103 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:32,103 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] [2022-10-16 04:21:32,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 04:21:32,104 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:32,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:32,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1684225782, now seen corresponding path program 1 times [2022-10-16 04:21:32,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:32,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264797026] [2022-10-16 04:21:32,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:32,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:32,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:32,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:32,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 04:21:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:32,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:32,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:32,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 04:21:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:32,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 04:21:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:21:32,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:32,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264797026] [2022-10-16 04:21:32,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264797026] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:32,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:32,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-16 04:21:32,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848503890] [2022-10-16 04:21:32,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:32,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 04:21:32,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:32,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 04:21:32,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 04:21:32,261 INFO L87 Difference]: Start difference. First operand 1433 states and 1913 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2022-10-16 04:21:33,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:33,879 INFO L93 Difference]: Finished difference Result 3597 states and 4694 transitions. [2022-10-16 04:21:33,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 04:21:33,880 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2022-10-16 04:21:33,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:33,902 INFO L225 Difference]: With dead ends: 3597 [2022-10-16 04:21:33,902 INFO L226 Difference]: Without dead ends: 3597 [2022-10-16 04:21:33,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 04:21:33,907 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1764 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1782 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:33,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1782 Valid, 1223 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 04:21:33,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3597 states. [2022-10-16 04:21:34,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3597 to 3216. [2022-10-16 04:21:34,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 2573 states have (on average 1.3229692965410027) internal successors, (3404), 2616 states have internal predecessors, (3404), 347 states have call successors, (347), 246 states have call predecessors, (347), 294 states have return successors, (443), 355 states have call predecessors, (443), 345 states have call successors, (443) [2022-10-16 04:21:34,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 4194 transitions. [2022-10-16 04:21:34,113 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 4194 transitions. Word has length 65 [2022-10-16 04:21:34,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:34,114 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 4194 transitions. [2022-10-16 04:21:34,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2022-10-16 04:21:34,114 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 4194 transitions. [2022-10-16 04:21:34,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 04:21:34,118 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:34,119 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:21:34,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 04:21:34,119 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:34,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:34,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1619616050, now seen corresponding path program 1 times [2022-10-16 04:21:34,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:34,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470432497] [2022-10-16 04:21:34,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:34,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:34,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:34,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:34,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 04:21:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:34,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:34,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:34,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 04:21:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:34,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 04:21:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:34,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 04:21:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:34,370 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 04:21:34,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:34,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470432497] [2022-10-16 04:21:34,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470432497] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:34,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:34,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 04:21:34,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253277433] [2022-10-16 04:21:34,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:34,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 04:21:34,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:34,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 04:21:34,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-10-16 04:21:34,375 INFO L87 Difference]: Start difference. First operand 3216 states and 4194 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 04:21:34,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:34,819 INFO L93 Difference]: Finished difference Result 3604 states and 4685 transitions. [2022-10-16 04:21:34,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 04:21:34,820 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 90 [2022-10-16 04:21:34,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:34,842 INFO L225 Difference]: With dead ends: 3604 [2022-10-16 04:21:34,842 INFO L226 Difference]: Without dead ends: 3604 [2022-10-16 04:21:34,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:21:34,844 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 191 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:34,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 617 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 04:21:34,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3604 states. [2022-10-16 04:21:34,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3604 to 3346. [2022-10-16 04:21:34,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3346 states, 2677 states have (on average 1.308180799402316) internal successors, (3502), 2720 states have internal predecessors, (3502), 347 states have call successors, (347), 246 states have call predecessors, (347), 320 states have return successors, (469), 381 states have call predecessors, (469), 345 states have call successors, (469) [2022-10-16 04:21:34,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3346 states to 3346 states and 4318 transitions. [2022-10-16 04:21:34,987 INFO L78 Accepts]: Start accepts. Automaton has 3346 states and 4318 transitions. Word has length 90 [2022-10-16 04:21:34,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:34,988 INFO L495 AbstractCegarLoop]: Abstraction has 3346 states and 4318 transitions. [2022-10-16 04:21:34,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 04:21:34,989 INFO L276 IsEmpty]: Start isEmpty. Operand 3346 states and 4318 transitions. [2022-10-16 04:21:34,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 04:21:34,991 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:34,991 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:21:34,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 04:21:34,992 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:34,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:34,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1175715376, now seen corresponding path program 1 times [2022-10-16 04:21:34,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:34,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458374250] [2022-10-16 04:21:34,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:34,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 04:21:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 04:21:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 04:21:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 04:21:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,257 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 04:21:35,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:35,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458374250] [2022-10-16 04:21:35,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458374250] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:35,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:35,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 04:21:35,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036206915] [2022-10-16 04:21:35,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:35,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 04:21:35,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:35,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 04:21:35,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:21:35,260 INFO L87 Difference]: Start difference. First operand 3346 states and 4318 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-16 04:21:35,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:35,980 INFO L93 Difference]: Finished difference Result 3595 states and 4611 transitions. [2022-10-16 04:21:35,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 04:21:35,981 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 90 [2022-10-16 04:21:35,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:36,001 INFO L225 Difference]: With dead ends: 3595 [2022-10-16 04:21:36,002 INFO L226 Difference]: Without dead ends: 3595 [2022-10-16 04:21:36,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2022-10-16 04:21:36,003 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 400 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:36,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 727 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 04:21:36,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3595 states. [2022-10-16 04:21:36,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3595 to 3027. [2022-10-16 04:21:36,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3027 states, 2434 states have (on average 1.3069022185702548) internal successors, (3181), 2467 states have internal predecessors, (3181), 309 states have call successors, (309), 220 states have call predecessors, (309), 282 states have return successors, (408), 340 states have call predecessors, (408), 307 states have call successors, (408) [2022-10-16 04:21:36,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3027 states to 3027 states and 3898 transitions. [2022-10-16 04:21:36,135 INFO L78 Accepts]: Start accepts. Automaton has 3027 states and 3898 transitions. Word has length 90 [2022-10-16 04:21:36,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:36,136 INFO L495 AbstractCegarLoop]: Abstraction has 3027 states and 3898 transitions. [2022-10-16 04:21:36,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-16 04:21:36,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3027 states and 3898 transitions. [2022-10-16 04:21:36,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 04:21:36,138 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:36,138 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:21:36,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 04:21:36,139 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:36,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:36,139 INFO L85 PathProgramCache]: Analyzing trace with hash 763446670, now seen corresponding path program 1 times [2022-10-16 04:21:36,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:36,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788316815] [2022-10-16 04:21:36,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:36,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 04:21:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 04:21:36,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 04:21:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 04:21:36,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,310 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 04:21:36,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:36,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788316815] [2022-10-16 04:21:36,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788316815] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:36,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:36,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:21:36,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342527236] [2022-10-16 04:21:36,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:36,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:21:36,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:36,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:21:36,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:21:36,314 INFO L87 Difference]: Start difference. First operand 3027 states and 3898 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 04:21:36,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:36,736 INFO L93 Difference]: Finished difference Result 6304 states and 8165 transitions. [2022-10-16 04:21:36,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 04:21:36,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 90 [2022-10-16 04:21:36,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:36,772 INFO L225 Difference]: With dead ends: 6304 [2022-10-16 04:21:36,772 INFO L226 Difference]: Without dead ends: 6304 [2022-10-16 04:21:36,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-10-16 04:21:36,774 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 388 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:36,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 539 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 04:21:36,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6304 states. [2022-10-16 04:21:36,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6304 to 5883. [2022-10-16 04:21:36,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5883 states, 4677 states have (on average 1.284370322856532) internal successors, (6007), 4766 states have internal predecessors, (6007), 615 states have call successors, (615), 439 states have call predecessors, (615), 589 states have return successors, (961), 679 states have call predecessors, (961), 613 states have call successors, (961) [2022-10-16 04:21:36,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5883 states to 5883 states and 7583 transitions. [2022-10-16 04:21:36,978 INFO L78 Accepts]: Start accepts. Automaton has 5883 states and 7583 transitions. Word has length 90 [2022-10-16 04:21:36,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:36,978 INFO L495 AbstractCegarLoop]: Abstraction has 5883 states and 7583 transitions. [2022-10-16 04:21:36,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 04:21:36,979 INFO L276 IsEmpty]: Start isEmpty. Operand 5883 states and 7583 transitions. [2022-10-16 04:21:36,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 04:21:36,986 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:36,986 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:21:36,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 04:21:36,987 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:36,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:36,987 INFO L85 PathProgramCache]: Analyzing trace with hash -294391408, now seen corresponding path program 1 times [2022-10-16 04:21:36,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:36,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266170141] [2022-10-16 04:21:36,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:36,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 04:21:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 04:21:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 04:21:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 04:21:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,074 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 04:21:37,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:37,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266170141] [2022-10-16 04:21:37,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266170141] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:37,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:37,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:21:37,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437218066] [2022-10-16 04:21:37,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:37,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:21:37,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:37,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:21:37,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:21:37,077 INFO L87 Difference]: Start difference. First operand 5883 states and 7583 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-16 04:21:37,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:37,331 INFO L93 Difference]: Finished difference Result 4743 states and 6118 transitions. [2022-10-16 04:21:37,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 04:21:37,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 90 [2022-10-16 04:21:37,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:37,358 INFO L225 Difference]: With dead ends: 4743 [2022-10-16 04:21:37,358 INFO L226 Difference]: Without dead ends: 4743 [2022-10-16 04:21:37,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-10-16 04:21:37,359 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 264 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:37,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 338 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 04:21:37,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4743 states. [2022-10-16 04:21:37,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4743 to 4414. [2022-10-16 04:21:37,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4414 states, 3528 states have (on average 1.2831632653061225) internal successors, (4527), 3588 states have internal predecessors, (4527), 454 states have call successors, (454), 326 states have call predecessors, (454), 430 states have return successors, (678), 500 states have call predecessors, (678), 452 states have call successors, (678) [2022-10-16 04:21:37,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4414 states to 4414 states and 5659 transitions. [2022-10-16 04:21:37,525 INFO L78 Accepts]: Start accepts. Automaton has 4414 states and 5659 transitions. Word has length 90 [2022-10-16 04:21:37,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:37,526 INFO L495 AbstractCegarLoop]: Abstraction has 4414 states and 5659 transitions. [2022-10-16 04:21:37,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-16 04:21:37,527 INFO L276 IsEmpty]: Start isEmpty. Operand 4414 states and 5659 transitions. [2022-10-16 04:21:37,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-16 04:21:37,528 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:37,529 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:21:37,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 04:21:37,529 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:37,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:37,530 INFO L85 PathProgramCache]: Analyzing trace with hash 993146047, now seen corresponding path program 1 times [2022-10-16 04:21:37,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:37,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118162326] [2022-10-16 04:21:37,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:37,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 04:21:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 04:21:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 04:21:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 04:21:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,692 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 04:21:37,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:37,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118162326] [2022-10-16 04:21:37,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118162326] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:37,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:37,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 04:21:37,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399924207] [2022-10-16 04:21:37,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:37,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 04:21:37,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:37,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 04:21:37,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-10-16 04:21:37,695 INFO L87 Difference]: Start difference. First operand 4414 states and 5659 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-16 04:21:38,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:38,689 INFO L93 Difference]: Finished difference Result 7284 states and 9081 transitions. [2022-10-16 04:21:38,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 04:21:38,689 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 91 [2022-10-16 04:21:38,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:38,723 INFO L225 Difference]: With dead ends: 7284 [2022-10-16 04:21:38,723 INFO L226 Difference]: Without dead ends: 7284 [2022-10-16 04:21:38,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=720, Unknown=0, NotChecked=0, Total=930 [2022-10-16 04:21:38,725 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 1272 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:38,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 710 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [398 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 04:21:38,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7284 states. [2022-10-16 04:21:38,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7284 to 6770. [2022-10-16 04:21:38,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6770 states, 5308 states have (on average 1.241710625470987) internal successors, (6591), 5410 states have internal predecessors, (6591), 742 states have call successors, (742), 508 states have call predecessors, (742), 718 states have return successors, (1149), 853 states have call predecessors, (1149), 740 states have call successors, (1149) [2022-10-16 04:21:38,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6770 states to 6770 states and 8482 transitions. [2022-10-16 04:21:38,930 INFO L78 Accepts]: Start accepts. Automaton has 6770 states and 8482 transitions. Word has length 91 [2022-10-16 04:21:38,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:38,931 INFO L495 AbstractCegarLoop]: Abstraction has 6770 states and 8482 transitions. [2022-10-16 04:21:38,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-16 04:21:38,932 INFO L276 IsEmpty]: Start isEmpty. Operand 6770 states and 8482 transitions. [2022-10-16 04:21:38,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-16 04:21:38,935 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:38,935 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:21:38,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 04:21:38,936 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:38,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:38,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1579158572, now seen corresponding path program 1 times [2022-10-16 04:21:38,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:38,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23861096] [2022-10-16 04:21:38,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:38,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:38,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 04:21:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 04:21:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 04:21:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 04:21:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 04:21:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 04:21:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 04:21:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 04:21:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-16 04:21:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,154 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-16 04:21:39,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:39,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23861096] [2022-10-16 04:21:39,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23861096] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:21:39,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572511770] [2022-10-16 04:21:39,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:39,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:39,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:21:39,158 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 04:21:39,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 04:21:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:21:39,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:21:39,360 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-10-16 04:21:39,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:21:39,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572511770] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:39,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:21:39,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10] total 11 [2022-10-16 04:21:39,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500518423] [2022-10-16 04:21:39,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:39,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:21:39,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:39,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:21:39,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-10-16 04:21:39,363 INFO L87 Difference]: Start difference. First operand 6770 states and 8482 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 04:21:39,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:39,411 INFO L93 Difference]: Finished difference Result 6769 states and 8481 transitions. [2022-10-16 04:21:39,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:21:39,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2022-10-16 04:21:39,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:39,426 INFO L225 Difference]: With dead ends: 6769 [2022-10-16 04:21:39,430 INFO L226 Difference]: Without dead ends: 2183 [2022-10-16 04:21:39,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-10-16 04:21:39,431 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 47 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:39,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 222 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:21:39,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2183 states. [2022-10-16 04:21:39,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2183 to 2101. [2022-10-16 04:21:39,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2101 states, 1635 states have (on average 1.2269113149847095) internal successors, (2006), 1661 states have internal predecessors, (2006), 241 states have call successors, (241), 162 states have call predecessors, (241), 224 states have return successors, (343), 278 states have call predecessors, (343), 239 states have call successors, (343) [2022-10-16 04:21:39,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2101 states to 2101 states and 2590 transitions. [2022-10-16 04:21:39,516 INFO L78 Accepts]: Start accepts. Automaton has 2101 states and 2590 transitions. Word has length 118 [2022-10-16 04:21:39,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:39,516 INFO L495 AbstractCegarLoop]: Abstraction has 2101 states and 2590 transitions. [2022-10-16 04:21:39,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 04:21:39,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2101 states and 2590 transitions. [2022-10-16 04:21:39,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-10-16 04:21:39,519 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:39,520 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:21:39,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 04:21:39,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 04:21:39,733 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:39,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:39,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1042470194, now seen corresponding path program 1 times [2022-10-16 04:21:39,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:39,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960287635] [2022-10-16 04:21:39,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:39,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 04:21:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 04:21:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 04:21:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 04:21:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:21:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 04:21:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 04:21:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 04:21:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 04:21:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-16 04:21:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 04:21:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,973 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-10-16 04:21:39,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:39,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960287635] [2022-10-16 04:21:39,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960287635] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:21:39,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829543882] [2022-10-16 04:21:39,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:39,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:39,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:21:39,975 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 04:21:39,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 04:21:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:21:40,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:21:40,236 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-10-16 04:21:40,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:21:40,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829543882] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:40,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:21:40,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2022-10-16 04:21:40,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350858681] [2022-10-16 04:21:40,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:40,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:21:40,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:40,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:21:40,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-10-16 04:21:40,239 INFO L87 Difference]: Start difference. First operand 2101 states and 2590 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 04:21:40,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:40,266 INFO L93 Difference]: Finished difference Result 4013 states and 4883 transitions. [2022-10-16 04:21:40,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:21:40,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 162 [2022-10-16 04:21:40,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:40,297 INFO L225 Difference]: With dead ends: 4013 [2022-10-16 04:21:40,298 INFO L226 Difference]: Without dead ends: 4013 [2022-10-16 04:21:40,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-10-16 04:21:40,299 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 61 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:40,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 281 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:21:40,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4013 states. [2022-10-16 04:21:40,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4013 to 3971. [2022-10-16 04:21:40,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3971 states, 3092 states have (on average 1.2160413971539457) internal successors, (3760), 3141 states have internal predecessors, (3760), 448 states have call successors, (448), 323 states have call predecessors, (448), 430 states have return successors, (611), 507 states have call predecessors, (611), 446 states have call successors, (611) [2022-10-16 04:21:40,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3971 states to 3971 states and 4819 transitions. [2022-10-16 04:21:40,411 INFO L78 Accepts]: Start accepts. Automaton has 3971 states and 4819 transitions. Word has length 162 [2022-10-16 04:21:40,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:40,412 INFO L495 AbstractCegarLoop]: Abstraction has 3971 states and 4819 transitions. [2022-10-16 04:21:40,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 04:21:40,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3971 states and 4819 transitions. [2022-10-16 04:21:40,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-10-16 04:21:40,415 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:40,416 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:21:40,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 04:21:40,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 04:21:40,630 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:40,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:40,631 INFO L85 PathProgramCache]: Analyzing trace with hash 469105204, now seen corresponding path program 1 times [2022-10-16 04:21:40,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:40,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62531703] [2022-10-16 04:21:40,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:40,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 04:21:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 04:21:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 04:21:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 04:21:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:21:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 04:21:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 04:21:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 04:21:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 04:21:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 04:21:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 04:21:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 04:21:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 04:21:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,924 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-10-16 04:21:40,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:40,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62531703] [2022-10-16 04:21:40,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62531703] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:21:40,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771765519] [2022-10-16 04:21:40,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:40,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:40,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:21:40,928 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 04:21:40,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 04:21:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:21:41,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:21:41,236 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-10-16 04:21:41,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:21:41,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771765519] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:41,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:21:41,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2022-10-16 04:21:41,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373040489] [2022-10-16 04:21:41,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:41,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:21:41,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:41,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:21:41,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-10-16 04:21:41,242 INFO L87 Difference]: Start difference. First operand 3971 states and 4819 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 04:21:41,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:41,280 INFO L93 Difference]: Finished difference Result 7931 states and 9579 transitions. [2022-10-16 04:21:41,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:21:41,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 194 [2022-10-16 04:21:41,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:41,306 INFO L225 Difference]: With dead ends: 7931 [2022-10-16 04:21:41,306 INFO L226 Difference]: Without dead ends: 7931 [2022-10-16 04:21:41,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-10-16 04:21:41,308 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 52 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:41,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 281 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:21:41,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7931 states. [2022-10-16 04:21:41,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7931 to 7921. [2022-10-16 04:21:41,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7921 states, 6170 states have (on average 1.2092382495948135) internal successors, (7461), 6266 states have internal predecessors, (7461), 890 states have call successors, (890), 645 states have call predecessors, (890), 860 states have return successors, (1218), 1010 states have call predecessors, (1218), 888 states have call successors, (1218) [2022-10-16 04:21:41,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7921 states to 7921 states and 9569 transitions. [2022-10-16 04:21:41,526 INFO L78 Accepts]: Start accepts. Automaton has 7921 states and 9569 transitions. Word has length 194 [2022-10-16 04:21:41,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:41,527 INFO L495 AbstractCegarLoop]: Abstraction has 7921 states and 9569 transitions. [2022-10-16 04:21:41,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 04:21:41,527 INFO L276 IsEmpty]: Start isEmpty. Operand 7921 states and 9569 transitions. [2022-10-16 04:21:41,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-10-16 04:21:41,532 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:41,532 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:21:41,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 04:21:41,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:41,747 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:41,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:41,747 INFO L85 PathProgramCache]: Analyzing trace with hash -428288074, now seen corresponding path program 1 times [2022-10-16 04:21:41,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:41,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565326628] [2022-10-16 04:21:41,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:41,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 04:21:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 04:21:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 04:21:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 04:21:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 04:21:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:21:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 04:21:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 04:21:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 04:21:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 04:21:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 04:21:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 04:21:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 04:21:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:42,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 04:21:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:42,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 04:21:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:42,008 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-10-16 04:21:42,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:42,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565326628] [2022-10-16 04:21:42,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565326628] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:21:42,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287491131] [2022-10-16 04:21:42,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:42,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:42,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:21:42,011 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 04:21:42,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 04:21:42,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:42,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:21:42,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:21:42,380 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-10-16 04:21:42,381 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:21:42,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287491131] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:42,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:21:42,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2022-10-16 04:21:42,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503936942] [2022-10-16 04:21:42,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:42,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:21:42,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:42,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:21:42,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-10-16 04:21:42,384 INFO L87 Difference]: Start difference. First operand 7921 states and 9569 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-10-16 04:21:42,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:42,419 INFO L93 Difference]: Finished difference Result 7417 states and 8760 transitions. [2022-10-16 04:21:42,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:21:42,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 194 [2022-10-16 04:21:42,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:42,420 INFO L225 Difference]: With dead ends: 7417 [2022-10-16 04:21:42,420 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 04:21:42,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-10-16 04:21:42,422 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:42,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 129 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:21:42,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 04:21:42,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 04:21:42,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:21:42,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 04:21:42,423 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 194 [2022-10-16 04:21:42,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:42,424 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 04:21:42,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-10-16 04:21:42,424 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 04:21:42,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 04:21:42,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-16 04:21:42,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-16 04:21:42,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 04:21:42,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:42,648 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:21:42,652 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 04:21:42,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 04:21:42 BoogieIcfgContainer [2022-10-16 04:21:42,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 04:21:42,658 INFO L158 Benchmark]: Toolchain (without parser) took 18565.95ms. Allocated memory was 151.0MB in the beginning and 297.8MB in the end (delta: 146.8MB). Free memory was 125.5MB in the beginning and 117.8MB in the end (delta: 7.6MB). Peak memory consumption was 155.4MB. Max. memory is 8.0GB. [2022-10-16 04:21:42,658 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 151.0MB. Free memory was 121.3MB in the beginning and 121.2MB in the end (delta: 80.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 04:21:42,659 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.81ms. Allocated memory is still 151.0MB. Free memory was 125.3MB in the beginning and 111.6MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-10-16 04:21:42,660 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.52ms. Allocated memory is still 151.0MB. Free memory was 111.6MB in the beginning and 109.6MB in the end (delta: 2.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 04:21:42,660 INFO L158 Benchmark]: Boogie Preprocessor took 72.99ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 107.8MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 04:21:42,661 INFO L158 Benchmark]: RCFGBuilder took 834.50ms. Allocated memory is still 151.0MB. Free memory was 107.8MB in the beginning and 122.0MB in the end (delta: -14.2MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. [2022-10-16 04:21:42,661 INFO L158 Benchmark]: TraceAbstraction took 17072.48ms. Allocated memory was 151.0MB in the beginning and 297.8MB in the end (delta: 146.8MB). Free memory was 120.9MB in the beginning and 117.8MB in the end (delta: 3.1MB). Peak memory consumption was 151.0MB. Max. memory is 8.0GB. [2022-10-16 04:21:42,663 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 151.0MB. Free memory was 121.3MB in the beginning and 121.2MB in the end (delta: 80.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 469.81ms. Allocated memory is still 151.0MB. Free memory was 125.3MB in the beginning and 111.6MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 98.52ms. Allocated memory is still 151.0MB. Free memory was 111.6MB in the beginning and 109.6MB in the end (delta: 2.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.99ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 107.8MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 834.50ms. Allocated memory is still 151.0MB. Free memory was 107.8MB in the beginning and 122.0MB in the end (delta: -14.2MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. * TraceAbstraction took 17072.48ms. Allocated memory was 151.0MB in the beginning and 297.8MB in the end (delta: 146.8MB). Free memory was 120.9MB in the beginning and 117.8MB in the end (delta: 3.1MB). Peak memory consumption was 151.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 554]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 120 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 17.0s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7159 SdHoareTripleChecker+Valid, 6.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7055 mSDsluCounter, 8489 SdHoareTripleChecker+Invalid, 5.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5711 mSDsCounter, 2005 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6612 IncrementalHoareTripleChecker+Invalid, 8617 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2005 mSolverCounterUnsat, 2778 mSDtfsCounter, 6612 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1251 GetRequests, 1015 SyntacticMatches, 0 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1188 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7921occurred in iteration=13, InterpolantAutomatonStates: 190, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 3006 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 2091 NumberOfCodeBlocks, 2091 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2073 ConstructedInterpolants, 0 QuantifiedInterpolants, 4000 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2003 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 18 InterpolantComputations, 14 PerfectInterpolantSequences, 954/987 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-16 04:21:42,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...