./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--ali-ircc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--ali-ircc.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c454dc64a3cc485840c6830ce9e1c132fc674b92d2da550d28087d832958d75f --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 01:22:27,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 01:22:27,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 01:22:27,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 01:22:27,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 01:22:27,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 01:22:27,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 01:22:27,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 01:22:27,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 01:22:27,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 01:22:27,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 01:22:27,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 01:22:27,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 01:22:27,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 01:22:27,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 01:22:27,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 01:22:27,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 01:22:27,631 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 01:22:27,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 01:22:27,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 01:22:27,641 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 01:22:27,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 01:22:27,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 01:22:27,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 01:22:27,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 01:22:27,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 01:22:27,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 01:22:27,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 01:22:27,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 01:22:27,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 01:22:27,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 01:22:27,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 01:22:27,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 01:22:27,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 01:22:27,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 01:22:27,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 01:22:27,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 01:22:27,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 01:22:27,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 01:22:27,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 01:22:27,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 01:22:27,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 01:22:27,659 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 01:22:27,689 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 01:22:27,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 01:22:27,690 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 01:22:27,690 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 01:22:27,691 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 01:22:27,691 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 01:22:27,692 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 01:22:27,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 01:22:27,692 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 01:22:27,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 01:22:27,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 01:22:27,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 01:22:27,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 01:22:27,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 01:22:27,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 01:22:27,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 01:22:27,695 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 01:22:27,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 01:22:27,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 01:22:27,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 01:22:27,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 01:22:27,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:22:27,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 01:22:27,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 01:22:27,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 01:22:27,698 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 01:22:27,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 01:22:27,698 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 01:22:27,698 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 01:22:27,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 01:22:27,699 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c454dc64a3cc485840c6830ce9e1c132fc674b92d2da550d28087d832958d75f [2022-07-20 01:22:27,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 01:22:27,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 01:22:27,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 01:22:27,922 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 01:22:27,922 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 01:22:27,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--ali-ircc.ko-entry_point.cil.out.i [2022-07-20 01:22:27,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65a9ccfd0/f29436edb458409fba2f26b54c99a2b4/FLAG70b803a83 [2022-07-20 01:22:28,743 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 01:22:28,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--ali-ircc.ko-entry_point.cil.out.i [2022-07-20 01:22:28,797 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65a9ccfd0/f29436edb458409fba2f26b54c99a2b4/FLAG70b803a83 [2022-07-20 01:22:28,966 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65a9ccfd0/f29436edb458409fba2f26b54c99a2b4 [2022-07-20 01:22:28,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 01:22:28,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 01:22:28,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 01:22:28,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 01:22:28,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 01:22:28,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:22:28" (1/1) ... [2022-07-20 01:22:28,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45bc9992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:22:28, skipping insertion in model container [2022-07-20 01:22:28,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:22:28" (1/1) ... [2022-07-20 01:22:29,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 01:22:29,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:22:30,508 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/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--ali-ircc.ko-entry_point.cil.out.i[301264,301277] [2022-07-20 01:22:30,541 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-20 01:22:30,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:22:30,582 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 01:22:30,899 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/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--ali-ircc.ko-entry_point.cil.out.i[301264,301277] [2022-07-20 01:22:30,903 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-20 01:22:30,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:22:30,999 INFO L208 MainTranslator]: Completed translation [2022-07-20 01:22:30,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:22:30 WrapperNode [2022-07-20 01:22:31,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 01:22:31,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 01:22:31,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 01:22:31,001 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 01:22:31,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:22:30" (1/1) ... [2022-07-20 01:22:31,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:22:30" (1/1) ... [2022-07-20 01:22:31,237 INFO L137 Inliner]: procedures = 221, calls = 2343, calls flagged for inlining = 115, calls inlined = 111, statements flattened = 4855 [2022-07-20 01:22:31,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 01:22:31,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 01:22:31,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 01:22:31,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 01:22:31,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:22:30" (1/1) ... [2022-07-20 01:22:31,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:22:30" (1/1) ... [2022-07-20 01:22:31,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:22:30" (1/1) ... [2022-07-20 01:22:31,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:22:30" (1/1) ... [2022-07-20 01:22:31,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:22:30" (1/1) ... [2022-07-20 01:22:31,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:22:30" (1/1) ... [2022-07-20 01:22:31,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:22:30" (1/1) ... [2022-07-20 01:22:31,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 01:22:31,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 01:22:31,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 01:22:31,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 01:22:31,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:22:30" (1/1) ... [2022-07-20 01:22:31,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:22:31,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:22:31,472 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) [2022-07-20 01:22:31,493 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 [2022-07-20 01:22:31,508 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-07-20 01:22:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-07-20 01:22:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 01:22:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 01:22:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 01:22:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 01:22:31,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 01:22:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 01:22:31,510 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2022-07-20 01:22:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2022-07-20 01:22:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-20 01:22:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-20 01:22:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-20 01:22:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-20 01:22:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-20 01:22:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-20 01:22:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_dma_receive_complete [2022-07-20 01:22:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_dma_receive_complete [2022-07-20 01:22:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 01:22:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 01:22:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-20 01:22:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-20 01:22:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 01:22:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 01:22:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 01:22:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 01:22:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 01:22:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 01:22:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 01:22:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 01:22:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2022-07-20 01:22:31,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2022-07-20 01:22:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure switch_bank [2022-07-20 01:22:31,514 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_bank [2022-07-20 01:22:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-07-20 01:22:31,515 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-07-20 01:22:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-20 01:22:31,515 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-20 01:22:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 01:22:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 01:22:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-20 01:22:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-20 01:22:31,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-20 01:22:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_remove_4 [2022-07-20 01:22:31,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_remove_4 [2022-07-20 01:22:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-20 01:22:31,517 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-20 01:22:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_dma_receive [2022-07-20 01:22:31,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_dma_receive [2022-07-20 01:22:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 01:22:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 01:22:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-07-20 01:22:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-07-20 01:22:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_net_ioctl [2022-07-20 01:22:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_net_ioctl [2022-07-20 01:22:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure SetCOMInterrupts [2022-07-20 01:22:31,519 INFO L138 BoogieDeclarations]: Found implementation of procedure SetCOMInterrupts [2022-07-20 01:22:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 01:22:31,520 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 01:22:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-20 01:22:31,520 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-20 01:22:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 01:22:31,521 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 01:22:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_change_dongle_speed [2022-07-20 01:22:31,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_change_dongle_speed [2022-07-20 01:22:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure SIR2FIR [2022-07-20 01:22:31,522 INFO L138 BoogieDeclarations]: Found implementation of procedure SIR2FIR [2022-07-20 01:22:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-20 01:22:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-20 01:22:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_net_close [2022-07-20 01:22:31,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_net_close [2022-07-20 01:22:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-20 01:22:31,523 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-20 01:22:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 01:22:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 01:22:31,523 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 01:22:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_dma_xmit [2022-07-20 01:22:31,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_dma_xmit [2022-07-20 01:22:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 01:22:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 01:22:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-07-20 01:22:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-07-20 01:22:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-20 01:22:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-20 01:22:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2022-07-20 01:22:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2022-07-20 01:22:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_net_open [2022-07-20 01:22:31,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_net_open [2022-07-20 01:22:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-20 01:22:31,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-20 01:22:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 01:22:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-20 01:22:31,526 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-20 01:22:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-20 01:22:31,527 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-20 01:22:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 01:22:31,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 01:22:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-20 01:22:31,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-20 01:22:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 01:22:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-20 01:22:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-20 01:22:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 01:22:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 01:22:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 01:22:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 01:22:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-20 01:22:31,529 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-20 01:22:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-20 01:22:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-20 01:22:31,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-20 01:22:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure FIR2SIR [2022-07-20 01:22:31,530 INFO L138 BoogieDeclarations]: Found implementation of procedure FIR2SIR [2022-07-20 01:22:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-07-20 01:22:31,530 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-07-20 01:22:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_change_speed [2022-07-20 01:22:31,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_change_speed [2022-07-20 01:22:31,533 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-20 01:22:31,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-20 01:22:31,533 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-20 01:22:31,534 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-20 01:22:31,534 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-07-20 01:22:31,535 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-07-20 01:22:31,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 01:22:31,536 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_resume [2022-07-20 01:22:31,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_resume [2022-07-20 01:22:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 01:22:31,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 01:22:32,173 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 01:22:32,175 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 01:22:33,169 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 01:22:37,791 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 01:22:37,807 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 01:22:37,807 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 01:22:37,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:22:37 BoogieIcfgContainer [2022-07-20 01:22:37,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 01:22:37,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 01:22:37,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 01:22:37,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 01:22:37,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:22:28" (1/3) ... [2022-07-20 01:22:37,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648fb2d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:22:37, skipping insertion in model container [2022-07-20 01:22:37,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:22:30" (2/3) ... [2022-07-20 01:22:37,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648fb2d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:22:37, skipping insertion in model container [2022-07-20 01:22:37,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:22:37" (3/3) ... [2022-07-20 01:22:37,817 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--ali-ircc.ko-entry_point.cil.out.i [2022-07-20 01:22:37,829 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 01:22:37,829 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 01:22:37,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 01:22:37,918 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@199c8402, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6b183983 [2022-07-20 01:22:37,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 01:22:37,927 INFO L276 IsEmpty]: Start isEmpty. Operand has 1585 states, 1118 states have (on average 1.4686940966010733) internal successors, (1642), 1146 states have internal predecessors, (1642), 411 states have call successors, (411), 55 states have call predecessors, (411), 54 states have return successors, (404), 395 states have call predecessors, (404), 404 states have call successors, (404) [2022-07-20 01:22:37,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-07-20 01:22:37,972 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:22:37,973 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:22:37,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:22:37,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:22:37,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1159393440, now seen corresponding path program 1 times [2022-07-20 01:22:37,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:22:37,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329259881] [2022-07-20 01:22:37,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:22:37,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:22:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:38,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:22:38,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:38,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:38,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:22:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:38,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:22:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:38,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:38,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:22:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:38,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:22:38,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:22:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:22:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:22:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:22:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:22:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-20 01:22:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-20 01:22:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-20 01:22:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-20 01:22:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 01:22:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-20 01:22:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-20 01:22:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-20 01:22:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-20 01:22:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-20 01:22:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-20 01:22:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-20 01:22:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 01:22:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-20 01:22:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-20 01:22:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-20 01:22:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-20 01:22:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:39,369 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-07-20 01:22:39,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:22:39,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329259881] [2022-07-20 01:22:39,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329259881] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:22:39,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:22:39,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-20 01:22:39,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531393362] [2022-07-20 01:22:39,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:22:39,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-20 01:22:39,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:22:39,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-20 01:22:39,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-20 01:22:39,417 INFO L87 Difference]: Start difference. First operand has 1585 states, 1118 states have (on average 1.4686940966010733) internal successors, (1642), 1146 states have internal predecessors, (1642), 411 states have call successors, (411), 55 states have call predecessors, (411), 54 states have return successors, (404), 395 states have call predecessors, (404), 404 states have call successors, (404) Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (32), 8 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-20 01:22:58,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:22:58,691 INFO L93 Difference]: Finished difference Result 4895 states and 7725 transitions. [2022-07-20 01:22:58,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-20 01:22:58,697 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (32), 8 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 240 [2022-07-20 01:22:58,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:22:58,739 INFO L225 Difference]: With dead ends: 4895 [2022-07-20 01:22:58,739 INFO L226 Difference]: Without dead ends: 3229 [2022-07-20 01:22:58,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-07-20 01:22:58,781 INFO L413 NwaCegarLoop]: 2564 mSDtfsCounter, 4556 mSDsluCounter, 6942 mSDsCounter, 0 mSdLazyCounter, 9807 mSolverCounterSat, 4030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4917 SdHoareTripleChecker+Valid, 9506 SdHoareTripleChecker+Invalid, 13837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4030 IncrementalHoareTripleChecker+Valid, 9807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2022-07-20 01:22:58,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4917 Valid, 9506 Invalid, 13837 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4030 Valid, 9807 Invalid, 0 Unknown, 0 Unchecked, 18.6s Time] [2022-07-20 01:22:58,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3229 states. [2022-07-20 01:22:59,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3229 to 3069. [2022-07-20 01:22:59,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3069 states, 2171 states have (on average 1.345923537540304) internal successors, (2922), 2213 states have internal predecessors, (2922), 787 states have call successors, (787), 107 states have call predecessors, (787), 110 states have return successors, (807), 768 states have call predecessors, (807), 786 states have call successors, (807) [2022-07-20 01:22:59,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3069 states to 3069 states and 4516 transitions. [2022-07-20 01:22:59,087 INFO L78 Accepts]: Start accepts. Automaton has 3069 states and 4516 transitions. Word has length 240 [2022-07-20 01:22:59,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:22:59,090 INFO L495 AbstractCegarLoop]: Abstraction has 3069 states and 4516 transitions. [2022-07-20 01:22:59,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (32), 8 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-20 01:22:59,090 INFO L276 IsEmpty]: Start isEmpty. Operand 3069 states and 4516 transitions. [2022-07-20 01:22:59,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-20 01:22:59,108 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:22:59,108 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:22:59,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 01:22:59,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:22:59,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:22:59,109 INFO L85 PathProgramCache]: Analyzing trace with hash 302116651, now seen corresponding path program 1 times [2022-07-20 01:22:59,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:22:59,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192150804] [2022-07-20 01:22:59,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:22:59,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:22:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:22:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:22:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:22:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:22:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:22:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:22:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:22:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:22:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:22:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:22:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-20 01:22:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-20 01:22:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-20 01:22:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-20 01:22:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-20 01:22:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-20 01:22:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-20 01:22:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-20 01:22:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 01:22:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 01:22:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-20 01:22:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-20 01:22:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:59,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 01:22:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-20 01:22:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-20 01:22:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-20 01:22:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 01:22:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:22:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-20 01:22:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-20 01:22:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:59,815 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-07-20 01:22:59,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:22:59,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192150804] [2022-07-20 01:22:59,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192150804] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:22:59,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:22:59,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-20 01:22:59,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714376183] [2022-07-20 01:22:59,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:22:59,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-20 01:22:59,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:22:59,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-20 01:22:59,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-20 01:22:59,819 INFO L87 Difference]: Start difference. First operand 3069 states and 4516 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (34), 8 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-20 01:23:17,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:23:17,819 INFO L93 Difference]: Finished difference Result 9481 states and 14080 transitions. [2022-07-20 01:23:17,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-20 01:23:17,820 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (34), 8 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 251 [2022-07-20 01:23:17,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:23:17,860 INFO L225 Difference]: With dead ends: 9481 [2022-07-20 01:23:17,861 INFO L226 Difference]: Without dead ends: 6434 [2022-07-20 01:23:17,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-07-20 01:23:17,878 INFO L413 NwaCegarLoop]: 2511 mSDtfsCounter, 4089 mSDsluCounter, 6702 mSDsCounter, 0 mSdLazyCounter, 9914 mSolverCounterSat, 3152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4440 SdHoareTripleChecker+Valid, 9213 SdHoareTripleChecker+Invalid, 13066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3152 IncrementalHoareTripleChecker+Valid, 9914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2022-07-20 01:23:17,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4440 Valid, 9213 Invalid, 13066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3152 Valid, 9914 Invalid, 0 Unknown, 0 Unchecked, 17.5s Time] [2022-07-20 01:23:17,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6434 states. [2022-07-20 01:23:18,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6434 to 6124. [2022-07-20 01:23:18,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6124 states, 4335 states have (on average 1.3450980392156864) internal successors, (5831), 4421 states have internal predecessors, (5831), 1565 states have call successors, (1565), 214 states have call predecessors, (1565), 223 states have return successors, (1645), 1528 states have call predecessors, (1645), 1564 states have call successors, (1645) [2022-07-20 01:23:18,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6124 states to 6124 states and 9041 transitions. [2022-07-20 01:23:18,161 INFO L78 Accepts]: Start accepts. Automaton has 6124 states and 9041 transitions. Word has length 251 [2022-07-20 01:23:18,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:23:18,162 INFO L495 AbstractCegarLoop]: Abstraction has 6124 states and 9041 transitions. [2022-07-20 01:23:18,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (34), 8 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-20 01:23:18,163 INFO L276 IsEmpty]: Start isEmpty. Operand 6124 states and 9041 transitions. [2022-07-20 01:23:18,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-20 01:23:18,178 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:23:18,178 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:23:18,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 01:23:18,179 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:23:18,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:23:18,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1545332930, now seen corresponding path program 1 times [2022-07-20 01:23:18,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:23:18,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019354730] [2022-07-20 01:23:18,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:23:18,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:23:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:23:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:23:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:23:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:23:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:18,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:23:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:23:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-20 01:23:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 01:23:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 01:23:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-20 01:23:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-20 01:23:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-20 01:23:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-20 01:23:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-20 01:23:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-20 01:23:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-20 01:23:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-20 01:23:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-20 01:23:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 01:23:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-20 01:23:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-20 01:23:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-20 01:23:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-20 01:23:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:18,772 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-07-20 01:23:18,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:23:18,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019354730] [2022-07-20 01:23:18,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019354730] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:23:18,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:23:18,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-20 01:23:18,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223902290] [2022-07-20 01:23:18,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:23:18,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-20 01:23:18,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:23:18,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-20 01:23:18,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-20 01:23:18,776 INFO L87 Difference]: Start difference. First operand 6124 states and 9041 transitions. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (32), 8 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-20 01:23:31,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:23:34,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:23:34,325 INFO L93 Difference]: Finished difference Result 18959 states and 28222 transitions. [2022-07-20 01:23:34,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-20 01:23:34,326 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (32), 8 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 241 [2022-07-20 01:23:34,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:23:34,412 INFO L225 Difference]: With dead ends: 18959 [2022-07-20 01:23:34,412 INFO L226 Difference]: Without dead ends: 12857 [2022-07-20 01:23:34,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-07-20 01:23:34,451 INFO L413 NwaCegarLoop]: 2225 mSDtfsCounter, 4061 mSDsluCounter, 5188 mSDsCounter, 0 mSdLazyCounter, 8235 mSolverCounterSat, 2651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4412 SdHoareTripleChecker+Valid, 7413 SdHoareTripleChecker+Invalid, 10886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2651 IncrementalHoareTripleChecker+Valid, 8235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-07-20 01:23:34,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4412 Valid, 7413 Invalid, 10886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2651 Valid, 8235 Invalid, 0 Unknown, 0 Unchecked, 14.9s Time] [2022-07-20 01:23:34,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12857 states. [2022-07-20 01:23:35,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12857 to 12247. [2022-07-20 01:23:35,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12247 states, 8674 states have (on average 1.3443624625317039) internal successors, (11661), 8848 states have internal predecessors, (11661), 3121 states have call successors, (3121), 430 states have call predecessors, (3121), 451 states have return successors, (3354), 3048 states have call predecessors, (3354), 3120 states have call successors, (3354) [2022-07-20 01:23:35,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12247 states to 12247 states and 18136 transitions. [2022-07-20 01:23:35,158 INFO L78 Accepts]: Start accepts. Automaton has 12247 states and 18136 transitions. Word has length 241 [2022-07-20 01:23:35,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:23:35,160 INFO L495 AbstractCegarLoop]: Abstraction has 12247 states and 18136 transitions. [2022-07-20 01:23:35,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (32), 8 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-20 01:23:35,161 INFO L276 IsEmpty]: Start isEmpty. Operand 12247 states and 18136 transitions. [2022-07-20 01:23:35,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-07-20 01:23:35,178 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:23:35,178 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:23:35,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 01:23:35,179 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:23:35,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:23:35,180 INFO L85 PathProgramCache]: Analyzing trace with hash 2104832429, now seen corresponding path program 1 times [2022-07-20 01:23:35,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:23:35,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179290271] [2022-07-20 01:23:35,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:23:35,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:23:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:23:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:23:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:23:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:23:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:23:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:23:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-20 01:23:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-20 01:23:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 01:23:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 01:23:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-20 01:23:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-20 01:23:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-20 01:23:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-20 01:23:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-20 01:23:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 01:23:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-20 01:23:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-20 01:23:35,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:35,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 01:23:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 01:23:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-20 01:23:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-20 01:23:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-20 01:23:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-20 01:23:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-20 01:23:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:35,687 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-07-20 01:23:35,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:23:35,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179290271] [2022-07-20 01:23:35,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179290271] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:23:35,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:23:35,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-20 01:23:35,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782592077] [2022-07-20 01:23:35,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:23:35,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-20 01:23:35,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:23:35,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-20 01:23:35,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-20 01:23:35,690 INFO L87 Difference]: Start difference. First operand 12247 states and 18136 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (34), 8 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-20 01:23:50,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:23:50,387 INFO L93 Difference]: Finished difference Result 37474 states and 55968 transitions. [2022-07-20 01:23:50,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-20 01:23:50,387 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (34), 8 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 250 [2022-07-20 01:23:50,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:23:50,518 INFO L225 Difference]: With dead ends: 37474 [2022-07-20 01:23:50,518 INFO L226 Difference]: Without dead ends: 25249 [2022-07-20 01:23:50,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-07-20 01:23:50,571 INFO L413 NwaCegarLoop]: 3196 mSDtfsCounter, 4038 mSDsluCounter, 6634 mSDsCounter, 0 mSdLazyCounter, 7907 mSolverCounterSat, 3388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4394 SdHoareTripleChecker+Valid, 9830 SdHoareTripleChecker+Invalid, 11295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3388 IncrementalHoareTripleChecker+Valid, 7907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-07-20 01:23:50,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4394 Valid, 9830 Invalid, 11295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3388 Valid, 7907 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2022-07-20 01:23:50,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25249 states. [2022-07-20 01:23:51,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25249 to 23977. [2022-07-20 01:23:51,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23977 states, 16957 states have (on average 1.3434569794185292) internal successors, (22781), 17323 states have internal predecessors, (22781), 6126 states have call successors, (6126), 848 states have call predecessors, (6126), 893 states have return successors, (6724), 5961 states have call predecessors, (6724), 6125 states have call successors, (6724) [2022-07-20 01:23:51,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23977 states to 23977 states and 35631 transitions. [2022-07-20 01:23:51,786 INFO L78 Accepts]: Start accepts. Automaton has 23977 states and 35631 transitions. Word has length 250 [2022-07-20 01:23:51,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:23:51,787 INFO L495 AbstractCegarLoop]: Abstraction has 23977 states and 35631 transitions. [2022-07-20 01:23:51,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (34), 8 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-20 01:23:51,787 INFO L276 IsEmpty]: Start isEmpty. Operand 23977 states and 35631 transitions. [2022-07-20 01:23:51,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-20 01:23:51,818 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:23:51,818 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:23:51,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 01:23:51,819 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:23:51,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:23:51,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1682267811, now seen corresponding path program 1 times [2022-07-20 01:23:51,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:23:51,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709692648] [2022-07-20 01:23:51,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:23:51,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:23:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:23:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:23:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:52,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:23:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:23:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:23:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:23:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-20 01:23:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-20 01:23:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 01:23:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-20 01:23:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-20 01:23:52,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-20 01:23:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-20 01:23:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 01:23:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-20 01:23:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-20 01:23:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-20 01:23:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-20 01:23:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-20 01:23:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 01:23:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-20 01:23:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 01:23:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-20 01:23:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-20 01:23:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:52,732 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2022-07-20 01:23:52,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:23:52,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709692648] [2022-07-20 01:23:52,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709692648] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 01:23:52,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010623043] [2022-07-20 01:23:52,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:23:52,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:23:52,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:23:52,736 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) [2022-07-20 01:23:52,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-20 01:23:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:53,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 4996 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:23:53,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:23:54,020 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-20 01:23:54,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:23:54,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010623043] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:23:54,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 01:23:54,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2022-07-20 01:23:54,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915052075] [2022-07-20 01:23:54,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:23:54,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:23:54,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:23:54,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:23:54,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-07-20 01:23:54,023 INFO L87 Difference]: Start difference. First operand 23977 states and 35631 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-20 01:23:54,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:23:54,625 INFO L93 Difference]: Finished difference Result 47947 states and 71325 transitions. [2022-07-20 01:23:54,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:23:54,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 251 [2022-07-20 01:23:54,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:23:54,769 INFO L225 Difference]: With dead ends: 47947 [2022-07-20 01:23:54,769 INFO L226 Difference]: Without dead ends: 23992 [2022-07-20 01:23:54,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-07-20 01:23:54,882 INFO L413 NwaCegarLoop]: 2260 mSDtfsCounter, 0 mSDsluCounter, 2256 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4516 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:23:54,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4516 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:23:54,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23992 states. [2022-07-20 01:23:56,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23992 to 23992. [2022-07-20 01:23:56,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23992 states, 16972 states have (on average 1.3431534291774687) internal successors, (22796), 17338 states have internal predecessors, (22796), 6126 states have call successors, (6126), 848 states have call predecessors, (6126), 893 states have return successors, (6724), 5961 states have call predecessors, (6724), 6125 states have call successors, (6724) [2022-07-20 01:23:56,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23992 states to 23992 states and 35646 transitions. [2022-07-20 01:23:56,661 INFO L78 Accepts]: Start accepts. Automaton has 23992 states and 35646 transitions. Word has length 251 [2022-07-20 01:23:56,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:23:56,674 INFO L495 AbstractCegarLoop]: Abstraction has 23992 states and 35646 transitions. [2022-07-20 01:23:56,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-20 01:23:56,674 INFO L276 IsEmpty]: Start isEmpty. Operand 23992 states and 35646 transitions. [2022-07-20 01:23:56,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-07-20 01:23:56,696 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:23:56,696 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:23:56,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-20 01:23:56,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:23:56,916 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:23:56,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:23:56,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1618462351, now seen corresponding path program 1 times [2022-07-20 01:23:56,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:23:56,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938245988] [2022-07-20 01:23:56,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:23:56,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:23:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:23:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:23:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:23:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:23:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:23:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:23:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:57,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-20 01:23:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-20 01:23:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 01:23:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-20 01:23:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-20 01:23:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-20 01:23:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-20 01:23:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 01:23:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-20 01:23:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-20 01:23:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-20 01:23:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-20 01:23:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-20 01:23:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 01:23:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-20 01:23:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-20 01:23:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-20 01:23:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-20 01:23:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-20 01:23:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-20 01:23:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:57,717 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-07-20 01:23:57,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:23:57,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938245988] [2022-07-20 01:23:57,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938245988] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 01:23:57,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102180334] [2022-07-20 01:23:57,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:23:57,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:23:57,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:23:57,742 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) [2022-07-20 01:23:57,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-20 01:23:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:58,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 4975 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 01:23:58,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:23:59,111 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-07-20 01:23:59,111 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:23:59,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102180334] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:23:59,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 01:23:59,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2022-07-20 01:23:59,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228907076] [2022-07-20 01:23:59,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:23:59,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 01:23:59,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:23:59,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 01:23:59,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-07-20 01:23:59,114 INFO L87 Difference]: Start difference. First operand 23992 states and 35646 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-20 01:24:00,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:24:00,220 INFO L93 Difference]: Finished difference Result 59926 states and 89140 transitions. [2022-07-20 01:24:00,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-20 01:24:00,221 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 263 [2022-07-20 01:24:00,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:24:00,429 INFO L225 Difference]: With dead ends: 59926 [2022-07-20 01:24:00,430 INFO L226 Difference]: Without dead ends: 35956 [2022-07-20 01:24:00,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2022-07-20 01:24:00,524 INFO L413 NwaCegarLoop]: 3391 mSDtfsCounter, 2288 mSDsluCounter, 15788 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2292 SdHoareTripleChecker+Valid, 19179 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:24:00,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2292 Valid, 19179 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:24:00,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35956 states. [2022-07-20 01:24:01,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35956 to 35807. [2022-07-20 01:24:02,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35807 states, 25334 states have (on average 1.343412015473277) internal successors, (34034), 25890 states have internal predecessors, (34034), 9131 states have call successors, (9131), 1266 states have call predecessors, (9131), 1341 states have return successors, (10184), 8882 states have call predecessors, (10184), 9130 states have call successors, (10184) [2022-07-20 01:24:02,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35807 states to 35807 states and 53349 transitions. [2022-07-20 01:24:02,511 INFO L78 Accepts]: Start accepts. Automaton has 35807 states and 53349 transitions. Word has length 263 [2022-07-20 01:24:02,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:24:02,512 INFO L495 AbstractCegarLoop]: Abstraction has 35807 states and 53349 transitions. [2022-07-20 01:24:02,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-20 01:24:02,513 INFO L276 IsEmpty]: Start isEmpty. Operand 35807 states and 53349 transitions. [2022-07-20 01:24:02,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-07-20 01:24:02,547 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:24:02,548 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:24:02,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-20 01:24:02,767 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,SelfDestructingSolverStorable5 [2022-07-20 01:24:02,768 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:24:02,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:24:02,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1344391188, now seen corresponding path program 1 times [2022-07-20 01:24:02,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:24:02,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003089562] [2022-07-20 01:24:02,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:02,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:24:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:24:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:24:03,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:24:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:24:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:24:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:24:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-20 01:24:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 01:24:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 01:24:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-20 01:24:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-20 01:24:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-20 01:24:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-20 01:24:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-20 01:24:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 01:24:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-20 01:24:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-20 01:24:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-20 01:24:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-20 01:24:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 01:24:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-20 01:24:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 01:24:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-20 01:24:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-20 01:24:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-20 01:24:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-20 01:24:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:03,747 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-07-20 01:24:03,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:24:03,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003089562] [2022-07-20 01:24:03,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003089562] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 01:24:03,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219381157] [2022-07-20 01:24:03,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:03,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:24:03,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:24:03,750 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) [2022-07-20 01:24:03,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-20 01:24:04,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:04,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 4977 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 01:24:04,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:24:05,027 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-07-20 01:24:05,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:24:05,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219381157] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:24:05,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 01:24:05,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2022-07-20 01:24:05,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14601121] [2022-07-20 01:24:05,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:24:05,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 01:24:05,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:24:05,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 01:24:05,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-07-20 01:24:05,030 INFO L87 Difference]: Start difference. First operand 35807 states and 53349 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-20 01:24:06,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:24:06,655 INFO L93 Difference]: Finished difference Result 83609 states and 124592 transitions. [2022-07-20 01:24:06,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-20 01:24:06,655 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 264 [2022-07-20 01:24:06,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:24:06,899 INFO L225 Difference]: With dead ends: 83609 [2022-07-20 01:24:06,899 INFO L226 Difference]: Without dead ends: 47824 [2022-07-20 01:24:07,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2022-07-20 01:24:07,019 INFO L413 NwaCegarLoop]: 3698 mSDtfsCounter, 2288 mSDsluCounter, 17004 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2292 SdHoareTripleChecker+Valid, 20702 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:24:07,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2292 Valid, 20702 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:24:07,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47824 states. [2022-07-20 01:24:08,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47824 to 47654. [2022-07-20 01:24:08,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47654 states, 33716 states have (on average 1.3433384743148653) internal successors, (45292), 34478 states have internal predecessors, (45292), 12136 states have call successors, (12136), 1684 states have call predecessors, (12136), 1801 states have return successors, (13656), 11799 states have call predecessors, (13656), 12135 states have call successors, (13656) [2022-07-20 01:24:09,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47654 states to 47654 states and 71084 transitions. [2022-07-20 01:24:09,177 INFO L78 Accepts]: Start accepts. Automaton has 47654 states and 71084 transitions. Word has length 264 [2022-07-20 01:24:09,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:24:09,181 INFO L495 AbstractCegarLoop]: Abstraction has 47654 states and 71084 transitions. [2022-07-20 01:24:09,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-20 01:24:09,182 INFO L276 IsEmpty]: Start isEmpty. Operand 47654 states and 71084 transitions. [2022-07-20 01:24:09,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-07-20 01:24:09,225 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:24:09,225 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:24:09,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-20 01:24:09,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:24:09,440 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:24:09,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:24:09,441 INFO L85 PathProgramCache]: Analyzing trace with hash 786654088, now seen corresponding path program 1 times [2022-07-20 01:24:09,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:24:09,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33235434] [2022-07-20 01:24:09,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:09,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:24:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:24:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:24:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:24:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:24:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:24:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:24:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-20 01:24:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:09,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-20 01:24:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-20 01:24:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 01:24:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-20 01:24:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-20 01:24:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-20 01:24:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-20 01:24:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 01:24:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-20 01:24:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-20 01:24:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-20 01:24:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-20 01:24:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 01:24:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-20 01:24:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-20 01:24:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-20 01:24:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-20 01:24:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-20 01:24:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-20 01:24:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:10,379 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-07-20 01:24:10,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:24:10,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33235434] [2022-07-20 01:24:10,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33235434] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 01:24:10,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070298627] [2022-07-20 01:24:10,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:10,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:24:10,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:24:10,382 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) [2022-07-20 01:24:10,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-20 01:24:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:11,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 4979 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 01:24:11,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:24:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-07-20 01:24:11,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:24:11,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070298627] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:24:11,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 01:24:11,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2022-07-20 01:24:11,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063291845] [2022-07-20 01:24:11,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:24:11,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 01:24:11,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:24:11,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 01:24:11,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-07-20 01:24:11,593 INFO L87 Difference]: Start difference. First operand 47654 states and 71084 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-20 01:24:13,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:24:13,200 INFO L93 Difference]: Finished difference Result 107292 states and 160044 transitions. [2022-07-20 01:24:13,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-20 01:24:13,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 265 [2022-07-20 01:24:13,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:24:13,467 INFO L225 Difference]: With dead ends: 107292 [2022-07-20 01:24:13,467 INFO L226 Difference]: Without dead ends: 59660 [2022-07-20 01:24:13,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2022-07-20 01:24:13,636 INFO L413 NwaCegarLoop]: 3538 mSDtfsCounter, 2288 mSDsluCounter, 16364 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2292 SdHoareTripleChecker+Valid, 19902 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:24:13,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2292 Valid, 19902 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:24:13,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59660 states. [2022-07-20 01:24:15,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59660 to 47676. [2022-07-20 01:24:15,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47676 states, 33732 states have (on average 1.343175619589707) internal successors, (45308), 34496 states have internal predecessors, (45308), 12136 states have call successors, (12136), 1684 states have call predecessors, (12136), 1807 states have return successors, (13665), 11803 states have call predecessors, (13665), 12135 states have call successors, (13665) [2022-07-20 01:24:15,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47676 states to 47676 states and 71109 transitions. [2022-07-20 01:24:15,613 INFO L78 Accepts]: Start accepts. Automaton has 47676 states and 71109 transitions. Word has length 265 [2022-07-20 01:24:15,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:24:15,614 INFO L495 AbstractCegarLoop]: Abstraction has 47676 states and 71109 transitions. [2022-07-20 01:24:15,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-20 01:24:15,615 INFO L276 IsEmpty]: Start isEmpty. Operand 47676 states and 71109 transitions. [2022-07-20 01:24:15,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-07-20 01:24:15,643 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:24:15,644 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:24:15,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-20 01:24:15,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:24:15,871 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:24:15,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:24:15,873 INFO L85 PathProgramCache]: Analyzing trace with hash 457958107, now seen corresponding path program 1 times [2022-07-20 01:24:15,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:24:15,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342010495] [2022-07-20 01:24:15,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:15,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:24:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:24:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:24:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:24:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:24:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:24:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:24:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-20 01:24:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 01:24:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-20 01:24:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 01:24:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-20 01:24:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 01:24:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 01:24:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-20 01:24:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-20 01:24:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-20 01:24:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-20 01:24:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 01:24:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-20 01:24:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 01:24:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-20 01:24:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-20 01:24:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-20 01:24:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-20 01:24:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:16,547 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-07-20 01:24:16,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:24:16,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342010495] [2022-07-20 01:24:16,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342010495] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 01:24:16,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257939272] [2022-07-20 01:24:16,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:16,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:24:16,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:24:16,550 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 01:24:16,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-20 01:24:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:17,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 5005 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 01:24:17,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:24:18,041 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-07-20 01:24:18,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:24:18,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257939272] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:24:18,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 01:24:18,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2022-07-20 01:24:18,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114430127] [2022-07-20 01:24:18,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:24:18,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 01:24:18,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:24:18,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 01:24:18,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-07-20 01:24:18,046 INFO L87 Difference]: Start difference. First operand 47676 states and 71109 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-20 01:24:19,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:24:19,616 INFO L93 Difference]: Finished difference Result 107322 states and 160077 transitions. [2022-07-20 01:24:19,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-20 01:24:19,617 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 254 [2022-07-20 01:24:19,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:24:20,040 INFO L225 Difference]: With dead ends: 107322 [2022-07-20 01:24:20,040 INFO L226 Difference]: Without dead ends: 59668 [2022-07-20 01:24:20,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2022-07-20 01:24:20,174 INFO L413 NwaCegarLoop]: 3737 mSDtfsCounter, 2288 mSDsluCounter, 17160 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2292 SdHoareTripleChecker+Valid, 20897 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:24:20,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2292 Valid, 20897 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:24:20,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59668 states. [2022-07-20 01:24:21,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59668 to 47689. [2022-07-20 01:24:21,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47689 states, 33742 states have (on average 1.3430739138166083) internal successors, (45318), 34505 states have internal predecessors, (45318), 12136 states have call successors, (12136), 1684 states have call predecessors, (12136), 1810 states have return successors, (13668), 11807 states have call predecessors, (13668), 12135 states have call successors, (13668) [2022-07-20 01:24:22,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47689 states to 47689 states and 71122 transitions. [2022-07-20 01:24:22,268 INFO L78 Accepts]: Start accepts. Automaton has 47689 states and 71122 transitions. Word has length 254 [2022-07-20 01:24:22,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:24:22,269 INFO L495 AbstractCegarLoop]: Abstraction has 47689 states and 71122 transitions. [2022-07-20 01:24:22,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-20 01:24:22,269 INFO L276 IsEmpty]: Start isEmpty. Operand 47689 states and 71122 transitions. [2022-07-20 01:24:22,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-07-20 01:24:22,359 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:24:22,359 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:24:22,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-20 01:24:22,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:24:22,572 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:24:22,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:24:22,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1506392936, now seen corresponding path program 1 times [2022-07-20 01:24:22,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:24:22,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228720483] [2022-07-20 01:24:22,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:22,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:24:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:24:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:24:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:24:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:24:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:24:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:24:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-20 01:24:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:22,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-20 01:24:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-20 01:24:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-20 01:24:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-20 01:24:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 01:24:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:23,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-20 01:24:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-20 01:24:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-20 01:24:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-20 01:24:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-20 01:24:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-20 01:24:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-20 01:24:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-20 01:24:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 01:24:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-20 01:24:23,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-20 01:24:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-20 01:24:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-07-20 01:24:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:23,239 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2022-07-20 01:24:23,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:24:23,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228720483] [2022-07-20 01:24:23,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228720483] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 01:24:23,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203918995] [2022-07-20 01:24:23,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:23,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:24:23,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:24:23,242 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 01:24:23,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-20 01:24:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:24,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 5236 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-20 01:24:24,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:24:24,625 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-07-20 01:24:24,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:24:24,949 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-20 01:24:24,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203918995] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:24:24,950 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 01:24:24,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 25 [2022-07-20 01:24:24,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138797226] [2022-07-20 01:24:24,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 01:24:24,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-07-20 01:24:24,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:24:24,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-07-20 01:24:24,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-07-20 01:24:24,953 INFO L87 Difference]: Start difference. First operand 47689 states and 71122 transitions. Second operand has 25 states, 25 states have (on average 7.84) internal successors, (196), 15 states have internal predecessors, (196), 5 states have call successors, (67), 10 states have call predecessors, (67), 7 states have return successors, (58), 6 states have call predecessors, (58), 5 states have call successors, (58) [2022-07-20 01:26:10,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:26:10,494 INFO L93 Difference]: Finished difference Result 134580 states and 201825 transitions. [2022-07-20 01:26:10,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-07-20 01:26:10,495 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.84) internal successors, (196), 15 states have internal predecessors, (196), 5 states have call successors, (67), 10 states have call predecessors, (67), 7 states have return successors, (58), 6 states have call predecessors, (58), 5 states have call successors, (58) Word has length 267 [2022-07-20 01:26:10,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:26:11,053 INFO L225 Difference]: With dead ends: 134580 [2022-07-20 01:26:11,054 INFO L226 Difference]: Without dead ends: 86717 [2022-07-20 01:26:11,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 754 GetRequests, 616 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6948 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=2874, Invalid=16308, Unknown=0, NotChecked=0, Total=19182 [2022-07-20 01:26:11,185 INFO L413 NwaCegarLoop]: 4989 mSDtfsCounter, 14257 mSDsluCounter, 29979 mSDsCounter, 0 mSdLazyCounter, 60825 mSolverCounterSat, 10388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14875 SdHoareTripleChecker+Valid, 34968 SdHoareTripleChecker+Invalid, 71213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 10388 IncrementalHoareTripleChecker+Valid, 60825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88.9s IncrementalHoareTripleChecker+Time [2022-07-20 01:26:11,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14875 Valid, 34968 Invalid, 71213 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [10388 Valid, 60825 Invalid, 0 Unknown, 0 Unchecked, 88.9s Time] [2022-07-20 01:26:11,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86717 states. [2022-07-20 01:26:14,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86717 to 82419. [2022-07-20 01:26:14,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82419 states, 58270 states have (on average 1.3414449974257765) internal successors, (78166), 59588 states have internal predecessors, (78166), 21009 states have call successors, (21009), 2935 states have call predecessors, (21009), 3139 states have return successors, (23550), 20423 states have call predecessors, (23550), 21008 states have call successors, (23550)