./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-18 08:44:57,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 08:44:57,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 08:44:57,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 08:44:57,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 08:44:57,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 08:44:57,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 08:44:57,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 08:44:57,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 08:44:57,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 08:44:57,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 08:44:57,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 08:44:57,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 08:44:57,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 08:44:57,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 08:44:57,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 08:44:57,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 08:44:57,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 08:44:57,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 08:44:57,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 08:44:57,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 08:44:57,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 08:44:57,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 08:44:57,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 08:44:57,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 08:44:57,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 08:44:57,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 08:44:57,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 08:44:57,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 08:44:57,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 08:44:57,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 08:44:57,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 08:44:57,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 08:44:57,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 08:44:57,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 08:44:57,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 08:44:57,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 08:44:57,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 08:44:57,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 08:44:57,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 08:44:57,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 08:44:57,617 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 08:44:57,641 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 08:44:57,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 08:44:57,642 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 08:44:57,642 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 08:44:57,643 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 08:44:57,643 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 08:44:57,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 08:44:57,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 08:44:57,644 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 08:44:57,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 08:44:57,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 08:44:57,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 08:44:57,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 08:44:57,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 08:44:57,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 08:44:57,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 08:44:57,646 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 08:44:57,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 08:44:57,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 08:44:57,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 08:44:57,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 08:44:57,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 08:44:57,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 08:44:57,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 08:44:57,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 08:44:57,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 08:44:57,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 08:44:57,648 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 08:44:57,648 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 08:44:57,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 08:44:57,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 08:44:57,649 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c454dc64a3cc485840c6830ce9e1c132fc674b92d2da550d28087d832958d75f [2021-12-18 08:44:57,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 08:44:57,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 08:44:57,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 08:44:57,863 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 08:44:57,863 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 08:44:57,864 INFO L432 ainManager$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 [2021-12-18 08:44:57,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4755f5101/0010cf14b2fd475a91bda4bc50be31fa/FLAG8d55d6e19 [2021-12-18 08:44:58,468 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 08:44:58,469 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 [2021-12-18 08:44:58,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4755f5101/0010cf14b2fd475a91bda4bc50be31fa/FLAG8d55d6e19 [2021-12-18 08:44:58,632 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4755f5101/0010cf14b2fd475a91bda4bc50be31fa [2021-12-18 08:44:58,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 08:44:58,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 08:44:58,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 08:44:58,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 08:44:58,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 08:44:58,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:44:58" (1/1) ... [2021-12-18 08:44:58,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed0730a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:44:58, skipping insertion in model container [2021-12-18 08:44:58,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:44:58" (1/1) ... [2021-12-18 08:44:58,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 08:44:58,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 08:44:59,790 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] [2021-12-18 08:44:59,822 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-18 08:44:59,860 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 08:44:59,887 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 08:45:00,154 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] [2021-12-18 08:45:00,157 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-18 08:45:00,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 08:45:00,253 INFO L208 MainTranslator]: Completed translation [2021-12-18 08:45:00,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:00 WrapperNode [2021-12-18 08:45:00,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 08:45:00,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 08:45:00,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 08:45:00,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 08:45:00,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:00" (1/1) ... [2021-12-18 08:45:00,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:00" (1/1) ... [2021-12-18 08:45:00,418 INFO L137 Inliner]: procedures = 221, calls = 2343, calls flagged for inlining = 115, calls inlined = 111, statements flattened = 4740 [2021-12-18 08:45:00,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 08:45:00,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 08:45:00,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 08:45:00,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 08:45:00,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:00" (1/1) ... [2021-12-18 08:45:00,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:00" (1/1) ... [2021-12-18 08:45:00,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:00" (1/1) ... [2021-12-18 08:45:00,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:00" (1/1) ... [2021-12-18 08:45:00,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:00" (1/1) ... [2021-12-18 08:45:00,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:00" (1/1) ... [2021-12-18 08:45:00,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:00" (1/1) ... [2021-12-18 08:45:00,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 08:45:00,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 08:45:00,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 08:45:00,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 08:45:00,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:00" (1/1) ... [2021-12-18 08:45:00,616 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 08:45:00,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:45:00,638 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) [2021-12-18 08:45:00,653 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 [2021-12-18 08:45:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2021-12-18 08:45:00,675 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2021-12-18 08:45:00,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 08:45:00,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 08:45:00,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 08:45:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 08:45:00,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 08:45:00,676 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 08:45:00,676 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2021-12-18 08:45:00,677 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2021-12-18 08:45:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 08:45:00,677 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 08:45:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-18 08:45:00,677 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-18 08:45:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-18 08:45:00,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-18 08:45:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_dma_receive_complete [2021-12-18 08:45:00,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_dma_receive_complete [2021-12-18 08:45:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 08:45:00,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 08:45:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-18 08:45:00,678 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-18 08:45:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 08:45:00,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 08:45:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 08:45:00,716 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 08:45:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 08:45:00,716 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 08:45:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 08:45:00,716 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 08:45:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2021-12-18 08:45:00,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2021-12-18 08:45:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure switch_bank [2021-12-18 08:45:00,716 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_bank [2021-12-18 08:45:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-12-18 08:45:00,716 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-12-18 08:45:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-18 08:45:00,716 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-18 08:45:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 08:45:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 08:45:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 08:45:00,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-18 08:45:00,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-18 08:45:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_remove_4 [2021-12-18 08:45:00,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_remove_4 [2021-12-18 08:45:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 08:45:00,717 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 08:45:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_dma_receive [2021-12-18 08:45:00,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_dma_receive [2021-12-18 08:45:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 08:45:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 08:45:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-18 08:45:00,717 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-18 08:45:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_net_ioctl [2021-12-18 08:45:00,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_net_ioctl [2021-12-18 08:45:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure SetCOMInterrupts [2021-12-18 08:45:00,717 INFO L138 BoogieDeclarations]: Found implementation of procedure SetCOMInterrupts [2021-12-18 08:45:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 08:45:00,717 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 08:45:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-18 08:45:00,717 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-18 08:45:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 08:45:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 08:45:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_change_dongle_speed [2021-12-18 08:45:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_change_dongle_speed [2021-12-18 08:45:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure SIR2FIR [2021-12-18 08:45:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure SIR2FIR [2021-12-18 08:45:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 08:45:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 08:45:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_net_close [2021-12-18 08:45:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_net_close [2021-12-18 08:45:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-18 08:45:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-18 08:45:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 08:45:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 08:45:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 08:45:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_dma_xmit [2021-12-18 08:45:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_dma_xmit [2021-12-18 08:45:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 08:45:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 08:45:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-18 08:45:00,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-18 08:45:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-18 08:45:00,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-18 08:45:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2021-12-18 08:45:00,719 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2021-12-18 08:45:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_net_open [2021-12-18 08:45:00,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_net_open [2021-12-18 08:45:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-18 08:45:00,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-18 08:45:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 08:45:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-18 08:45:00,719 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-18 08:45:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-18 08:45:00,719 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-18 08:45:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 08:45:00,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 08:45:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 08:45:00,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 08:45:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 08:45:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-18 08:45:00,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-18 08:45:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 08:45:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 08:45:00,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 08:45:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 08:45:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-18 08:45:00,720 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-18 08:45:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 08:45:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-18 08:45:00,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-18 08:45:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure FIR2SIR [2021-12-18 08:45:00,720 INFO L138 BoogieDeclarations]: Found implementation of procedure FIR2SIR [2021-12-18 08:45:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2021-12-18 08:45:00,720 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2021-12-18 08:45:00,720 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_change_speed [2021-12-18 08:45:00,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_change_speed [2021-12-18 08:45:00,721 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-18 08:45:00,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-18 08:45:00,721 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-18 08:45:00,721 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-18 08:45:00,721 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-12-18 08:45:00,721 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-12-18 08:45:00,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 08:45:00,721 INFO L130 BoogieDeclarations]: Found specification of procedure ali_ircc_resume [2021-12-18 08:45:00,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ali_ircc_resume [2021-12-18 08:45:00,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 08:45:00,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 08:45:01,209 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 08:45:01,212 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 08:45:02,091 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 08:45:05,062 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 08:45:05,078 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 08:45:05,078 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 08:45:05,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:45:05 BoogieIcfgContainer [2021-12-18 08:45:05,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 08:45:05,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 08:45:05,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 08:45:05,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 08:45:05,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 08:44:58" (1/3) ... [2021-12-18 08:45:05,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693a59e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:45:05, skipping insertion in model container [2021-12-18 08:45:05,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:45:00" (2/3) ... [2021-12-18 08:45:05,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693a59e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:45:05, skipping insertion in model container [2021-12-18 08:45:05,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:45:05" (3/3) ... [2021-12-18 08:45:05,087 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--ali-ircc.ko-entry_point.cil.out.i [2021-12-18 08:45:05,090 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 08:45:05,090 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 08:45:05,134 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 08:45:05,145 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 08:45:05,145 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 08:45:05,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 1411 states, 944 states have (on average 1.3644067796610169) internal successors, (1288), 972 states have internal predecessors, (1288), 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) [2021-12-18 08:45:05,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-12-18 08:45:05,218 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:45:05,219 INFO L514 BasicCegarLoop]: 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] [2021-12-18 08:45:05,220 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:45:05,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:45:05,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1436584672, now seen corresponding path program 1 times [2021-12-18 08:45:05,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:45:05,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692211598] [2021-12-18 08:45:05,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:45:05,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:45:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:45:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:45:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:45:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:45:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 08:45:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 08:45:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 08:45:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 08:45:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 08:45:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 08:45:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 08:45:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 08:45:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:05,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 08:45:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:06,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 08:45:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:06,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 08:45:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:06,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 08:45:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:06,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 08:45:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:06,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-18 08:45:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:06,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:06,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:45:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:06,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 08:45:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:06,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 08:45:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:06,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:06,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 08:45:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:06,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 08:45:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:06,105 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-12-18 08:45:06,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:45:06,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692211598] [2021-12-18 08:45:06,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692211598] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:45:06,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:45:06,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 08:45:06,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082909721] [2021-12-18 08:45:06,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:45:06,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 08:45:06,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:45:06,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 08:45:06,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-18 08:45:06,146 INFO L87 Difference]: Start difference. First operand has 1411 states, 944 states have (on average 1.3644067796610169) internal successors, (1288), 972 states have internal predecessors, (1288), 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 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 2 states have internal predecessors, (96), 2 states have call successors, (32), 7 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 08:45:10,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:45:10,183 INFO L93 Difference]: Finished difference Result 2888 states and 4350 transitions. [2021-12-18 08:45:10,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 08:45:10,185 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 2 states have internal predecessors, (96), 2 states have call successors, (32), 7 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 235 [2021-12-18 08:45:10,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:45:10,210 INFO L225 Difference]: With dead ends: 2888 [2021-12-18 08:45:10,210 INFO L226 Difference]: Without dead ends: 1438 [2021-12-18 08:45:10,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:45:10,226 INFO L933 BasicCegarLoop]: 1858 mSDtfsCounter, 1521 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 2385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1669 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 3690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2385 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-18 08:45:10,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1669 Valid, 3268 Invalid, 3690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2385 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-18 08:45:10,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2021-12-18 08:45:10,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1367. [2021-12-18 08:45:10,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 915 states have (on average 1.3573770491803279) internal successors, (1242), 934 states have internal predecessors, (1242), 398 states have call successors, (398), 54 states have call predecessors, (398), 53 states have return successors, (397), 388 states have call predecessors, (397), 397 states have call successors, (397) [2021-12-18 08:45:10,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 2037 transitions. [2021-12-18 08:45:10,407 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 2037 transitions. Word has length 235 [2021-12-18 08:45:10,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:45:10,407 INFO L470 AbstractCegarLoop]: Abstraction has 1367 states and 2037 transitions. [2021-12-18 08:45:10,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 2 states have internal predecessors, (96), 2 states have call successors, (32), 7 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 08:45:10,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 2037 transitions. [2021-12-18 08:45:10,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-12-18 08:45:10,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:45:10,421 INFO L514 BasicCegarLoop]: 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] [2021-12-18 08:45:10,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 08:45:10,421 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:45:10,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:45:10,422 INFO L85 PathProgramCache]: Analyzing trace with hash -96049331, now seen corresponding path program 1 times [2021-12-18 08:45:10,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:45:10,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666750325] [2021-12-18 08:45:10,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:45:10,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:45:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:45:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:45:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:45:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:45:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 08:45:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 08:45:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 08:45:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 08:45:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 08:45:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 08:45:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 08:45:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 08:45:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 08:45:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 08:45:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 08:45:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 08:45:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 08:45:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 08:45:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:45:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 08:45:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 08:45:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 08:45:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 08:45:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:10,999 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-12-18 08:45:10,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:45:11,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666750325] [2021-12-18 08:45:11,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666750325] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:45:11,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:45:11,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 08:45:11,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036594803] [2021-12-18 08:45:11,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:45:11,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 08:45:11,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:45:11,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 08:45:11,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-12-18 08:45:11,004 INFO L87 Difference]: Start difference. First operand 1367 states and 2037 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, (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) [2021-12-18 08:45:26,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:45:32,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:45:32,384 INFO L93 Difference]: Finished difference Result 4207 states and 6331 transitions. [2021-12-18 08:45:32,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 08:45:32,385 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, (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 238 [2021-12-18 08:45:32,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:45:32,402 INFO L225 Difference]: With dead ends: 4207 [2021-12-18 08:45:32,403 INFO L226 Difference]: Without dead ends: 2862 [2021-12-18 08:45:32,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-18 08:45:32,411 INFO L933 BasicCegarLoop]: 2259 mSDtfsCounter, 3049 mSDsluCounter, 8587 mSDsCounter, 0 mSdLazyCounter, 8293 mSolverCounterSat, 2379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3400 SdHoareTripleChecker+Valid, 10846 SdHoareTripleChecker+Invalid, 10672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2379 IncrementalHoareTripleChecker+Valid, 8293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2021-12-18 08:45:32,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3400 Valid, 10846 Invalid, 10672 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2379 Valid, 8293 Invalid, 0 Unknown, 0 Unchecked, 20.9s Time] [2021-12-18 08:45:32,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2862 states. [2021-12-18 08:45:32,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2862 to 2722. [2021-12-18 08:45:32,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2722 states, 1824 states have (on average 1.3574561403508771) internal successors, (2476), 1866 states have internal predecessors, (2476), 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) [2021-12-18 08:45:32,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2722 states to 2722 states and 4070 transitions. [2021-12-18 08:45:32,527 INFO L78 Accepts]: Start accepts. Automaton has 2722 states and 4070 transitions. Word has length 238 [2021-12-18 08:45:32,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:45:32,529 INFO L470 AbstractCegarLoop]: Abstraction has 2722 states and 4070 transitions. [2021-12-18 08:45:32,529 INFO L471 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, (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) [2021-12-18 08:45:32,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2722 states and 4070 transitions. [2021-12-18 08:45:32,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-12-18 08:45:32,541 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:45:32,541 INFO L514 BasicCegarLoop]: 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] [2021-12-18 08:45:32,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 08:45:32,541 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:45:32,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:45:32,542 INFO L85 PathProgramCache]: Analyzing trace with hash -2088886501, now seen corresponding path program 1 times [2021-12-18 08:45:32,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:45:32,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936291507] [2021-12-18 08:45:32,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:45:32,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:45:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:45:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:45:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:45:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:45:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 08:45:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 08:45:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 08:45:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 08:45:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 08:45:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 08:45:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 08:45:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 08:45:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 08:45:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 08:45:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 08:45:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 08:45:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 08:45:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 08:45:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:45:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 08:45:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 08:45:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 08:45:32,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-18 08:45:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:32,986 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-12-18 08:45:32,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:45:32,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936291507] [2021-12-18 08:45:32,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936291507] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:45:32,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:45:32,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 08:45:32,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345342333] [2021-12-18 08:45:32,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:45:32,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 08:45:32,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:45:32,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 08:45:32,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-12-18 08:45:32,989 INFO L87 Difference]: Start difference. First operand 2722 states and 4070 transitions. Second operand has 10 states, 10 states have (on average 9.8) internal successors, (98), 4 states have internal predecessors, (98), 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) [2021-12-18 08:45:49,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:45:49,754 INFO L93 Difference]: Finished difference Result 8401 states and 12684 transitions. [2021-12-18 08:45:49,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 08:45:49,755 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 4 states have internal predecessors, (98), 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 237 [2021-12-18 08:45:49,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:45:49,788 INFO L225 Difference]: With dead ends: 8401 [2021-12-18 08:45:49,789 INFO L226 Difference]: Without dead ends: 5701 [2021-12-18 08:45:49,804 INFO L932 BasicCegarLoop]: 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 [2021-12-18 08:45:49,806 INFO L933 BasicCegarLoop]: 2260 mSDtfsCounter, 3768 mSDsluCounter, 7889 mSDsCounter, 0 mSdLazyCounter, 6991 mSolverCounterSat, 3925 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4119 SdHoareTripleChecker+Valid, 10149 SdHoareTripleChecker+Invalid, 10916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3925 IncrementalHoareTripleChecker+Valid, 6991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2021-12-18 08:45:49,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4119 Valid, 10149 Invalid, 10916 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3925 Valid, 6991 Invalid, 0 Unknown, 0 Unchecked, 16.3s Time] [2021-12-18 08:45:49,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5701 states. [2021-12-18 08:45:50,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5701 to 5431. [2021-12-18 08:45:50,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5431 states, 3642 states have (on average 1.35667215815486) internal successors, (4941), 3728 states have internal predecessors, (4941), 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) [2021-12-18 08:45:50,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5431 states to 5431 states and 8151 transitions. [2021-12-18 08:45:50,030 INFO L78 Accepts]: Start accepts. Automaton has 5431 states and 8151 transitions. Word has length 237 [2021-12-18 08:45:50,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:45:50,030 INFO L470 AbstractCegarLoop]: Abstraction has 5431 states and 8151 transitions. [2021-12-18 08:45:50,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 4 states have internal predecessors, (98), 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) [2021-12-18 08:45:50,031 INFO L276 IsEmpty]: Start isEmpty. Operand 5431 states and 8151 transitions. [2021-12-18 08:45:50,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-12-18 08:45:50,041 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:45:50,041 INFO L514 BasicCegarLoop]: 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] [2021-12-18 08:45:50,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 08:45:50,042 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:45:50,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:45:50,043 INFO L85 PathProgramCache]: Analyzing trace with hash 734160426, now seen corresponding path program 1 times [2021-12-18 08:45:50,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:45:50,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214915035] [2021-12-18 08:45:50,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:45:50,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:45:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:45:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:45:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:45:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:45:50,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:45:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 08:45:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 08:45:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 08:45:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 08:45:50,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 08:45:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 08:45:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-18 08:45:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 08:45:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 08:45:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 08:45:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 08:45:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 08:45:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 08:45:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 08:45:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:45:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-18 08:45:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-18 08:45:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:45:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 08:45:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 08:45:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:45:50,405 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-12-18 08:45:50,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:45:50,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214915035] [2021-12-18 08:45:50,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214915035] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:45:50,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:45:50,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 08:45:50,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28116986] [2021-12-18 08:45:50,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:45:50,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 08:45:50,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:45:50,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 08:45:50,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-12-18 08:45:50,408 INFO L87 Difference]: Start difference. First operand 5431 states and 8151 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 4 states have internal predecessors, (97), 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) [2021-12-18 08:45:59,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:45:59,671 INFO L93 Difference]: Finished difference Result 16794 states and 25441 transitions. [2021-12-18 08:45:59,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 08:45:59,672 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 4 states have internal predecessors, (97), 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 236 [2021-12-18 08:45:59,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:45:59,728 INFO L225 Difference]: With dead ends: 16794 [2021-12-18 08:45:59,729 INFO L226 Difference]: Without dead ends: 11385 [2021-12-18 08:45:59,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-18 08:45:59,751 INFO L933 BasicCegarLoop]: 2179 mSDtfsCounter, 3605 mSDsluCounter, 6340 mSDsCounter, 0 mSdLazyCounter, 4821 mSolverCounterSat, 3332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3956 SdHoareTripleChecker+Valid, 8519 SdHoareTripleChecker+Invalid, 8153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3332 IncrementalHoareTripleChecker+Valid, 4821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-12-18 08:45:59,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3956 Valid, 8519 Invalid, 8153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3332 Valid, 4821 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2021-12-18 08:45:59,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11385 states. [2021-12-18 08:46:00,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11385 to 10855. [2021-12-18 08:46:00,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10855 states, 7282 states have (on average 1.3552595440812965) internal successors, (9869), 7456 states have internal predecessors, (9869), 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) [2021-12-18 08:46:00,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10855 states to 10855 states and 16344 transitions. [2021-12-18 08:46:00,222 INFO L78 Accepts]: Start accepts. Automaton has 10855 states and 16344 transitions. Word has length 236 [2021-12-18 08:46:00,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:46:00,223 INFO L470 AbstractCegarLoop]: Abstraction has 10855 states and 16344 transitions. [2021-12-18 08:46:00,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 4 states have internal predecessors, (97), 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) [2021-12-18 08:46:00,224 INFO L276 IsEmpty]: Start isEmpty. Operand 10855 states and 16344 transitions. [2021-12-18 08:46:00,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-12-18 08:46:00,233 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:46:00,234 INFO L514 BasicCegarLoop]: 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] [2021-12-18 08:46:00,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 08:46:00,234 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:46:00,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:46:00,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1552240168, now seen corresponding path program 1 times [2021-12-18 08:46:00,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:46:00,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068386080] [2021-12-18 08:46:00,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:00,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:46:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:46:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:00,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:46:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:46:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:46:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 08:46:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 08:46:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 08:46:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 08:46:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 08:46:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 08:46:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 08:46:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 08:46:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 08:46:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 08:46:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 08:46:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 08:46:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 08:46:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-18 08:46:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:46:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 08:46:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 08:46:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 08:46:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 08:46:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:00,620 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-12-18 08:46:00,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:46:00,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068386080] [2021-12-18 08:46:00,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068386080] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:46:00,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:46:00,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 08:46:00,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587999059] [2021-12-18 08:46:00,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:46:00,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 08:46:00,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:46:00,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 08:46:00,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-12-18 08:46:00,622 INFO L87 Difference]: Start difference. First operand 10855 states and 16344 transitions. Second operand has 10 states, 10 states have (on average 9.6) internal successors, (96), 4 states have internal predecessors, (96), 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) [2021-12-18 08:46:16,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:46:21,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:46:21,469 INFO L93 Difference]: Finished difference Result 33171 states and 50398 transitions. [2021-12-18 08:46:21,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 08:46:21,478 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 4 states have internal predecessors, (96), 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 235 [2021-12-18 08:46:21,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:46:21,646 INFO L225 Difference]: With dead ends: 33171 [2021-12-18 08:46:21,646 INFO L226 Difference]: Without dead ends: 22338 [2021-12-18 08:46:21,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-18 08:46:21,683 INFO L933 BasicCegarLoop]: 2680 mSDtfsCounter, 3371 mSDsluCounter, 9099 mSDsCounter, 0 mSdLazyCounter, 7737 mSolverCounterSat, 3607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3727 SdHoareTripleChecker+Valid, 11779 SdHoareTripleChecker+Invalid, 11344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3607 IncrementalHoareTripleChecker+Valid, 7737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2021-12-18 08:46:21,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3727 Valid, 11779 Invalid, 11344 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3607 Valid, 7737 Invalid, 0 Unknown, 0 Unchecked, 20.0s Time] [2021-12-18 08:46:21,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22338 states. [2021-12-18 08:46:22,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22338 to 21216. [2021-12-18 08:46:22,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21216 states, 14196 states have (on average 1.354466046773739) internal successors, (19228), 14562 states have internal predecessors, (19228), 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) [2021-12-18 08:46:22,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21216 states to 21216 states and 32078 transitions. [2021-12-18 08:46:22,628 INFO L78 Accepts]: Start accepts. Automaton has 21216 states and 32078 transitions. Word has length 235 [2021-12-18 08:46:22,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:46:22,630 INFO L470 AbstractCegarLoop]: Abstraction has 21216 states and 32078 transitions. [2021-12-18 08:46:22,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 4 states have internal predecessors, (96), 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) [2021-12-18 08:46:22,630 INFO L276 IsEmpty]: Start isEmpty. Operand 21216 states and 32078 transitions. [2021-12-18 08:46:22,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-12-18 08:46:22,646 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:46:22,647 INFO L514 BasicCegarLoop]: 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] [2021-12-18 08:46:22,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 08:46:22,647 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:46:22,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:46:22,648 INFO L85 PathProgramCache]: Analyzing trace with hash 2143666461, now seen corresponding path program 1 times [2021-12-18 08:46:22,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:46:22,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742479803] [2021-12-18 08:46:22,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:22,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:46:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:46:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:22,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:46:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:46:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:46:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 08:46:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 08:46:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 08:46:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 08:46:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 08:46:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 08:46:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:22,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 08:46:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:23,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:23,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:23,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 08:46:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:23,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 08:46:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:23,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 08:46:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:23,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 08:46:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:23,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 08:46:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:23,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-18 08:46:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:23,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 08:46:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:23,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 08:46:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:23,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:23,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:46:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:23,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 08:46:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:23,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 08:46:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:23,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:23,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 08:46:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:23,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 08:46:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:23,082 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-12-18 08:46:23,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:46:23,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742479803] [2021-12-18 08:46:23,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742479803] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:46:23,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277633723] [2021-12-18 08:46:23,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:23,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:46:23,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:46:23,100 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) [2021-12-18 08:46:23,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 08:46:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:24,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 4640 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 08:46:24,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:46:24,557 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-12-18 08:46:24,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:46:24,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277633723] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:46:24,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 08:46:24,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2021-12-18 08:46:24,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926591607] [2021-12-18 08:46:24,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:46:24,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 08:46:24,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:46:24,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 08:46:24,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-12-18 08:46:24,559 INFO L87 Difference]: Start difference. First operand 21216 states and 32078 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 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) [2021-12-18 08:46:25,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:46:25,361 INFO L93 Difference]: Finished difference Result 52998 states and 80236 transitions. [2021-12-18 08:46:25,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 08:46:25,362 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 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 248 [2021-12-18 08:46:25,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:46:25,525 INFO L225 Difference]: With dead ends: 52998 [2021-12-18 08:46:25,526 INFO L226 Difference]: Without dead ends: 31804 [2021-12-18 08:46:25,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2021-12-18 08:46:25,594 INFO L933 BasicCegarLoop]: 3070 mSDtfsCounter, 2064 mSDsluCounter, 14287 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2068 SdHoareTripleChecker+Valid, 17357 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 08:46:25,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2068 Valid, 17357 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 08:46:25,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31804 states. [2021-12-18 08:46:26,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31804 to 31655. [2021-12-18 08:46:26,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31655 states, 21182 states have (on average 1.3548295722783494) internal successors, (28698), 21738 states have internal predecessors, (28698), 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) [2021-12-18 08:46:27,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31655 states to 31655 states and 48013 transitions. [2021-12-18 08:46:27,330 INFO L78 Accepts]: Start accepts. Automaton has 31655 states and 48013 transitions. Word has length 248 [2021-12-18 08:46:27,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:46:27,331 INFO L470 AbstractCegarLoop]: Abstraction has 31655 states and 48013 transitions. [2021-12-18 08:46:27,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 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) [2021-12-18 08:46:27,331 INFO L276 IsEmpty]: Start isEmpty. Operand 31655 states and 48013 transitions. [2021-12-18 08:46:27,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-12-18 08:46:27,378 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:46:27,378 INFO L514 BasicCegarLoop]: 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] [2021-12-18 08:46:27,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 08:46:27,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-18 08:46:27,592 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:46:27,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:46:27,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1125794480, now seen corresponding path program 1 times [2021-12-18 08:46:27,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:46:27,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431585559] [2021-12-18 08:46:27,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:27,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:46:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:46:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:46:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:46:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:46:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 08:46:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 08:46:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 08:46:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 08:46:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 08:46:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 08:46:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 08:46:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 08:46:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 08:46:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 08:46:27,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 08:46:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 08:46:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 08:46:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:27,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 08:46:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:28,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-18 08:46:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:28,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:28,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:46:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:28,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 08:46:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:28,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-18 08:46:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:28,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:28,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 08:46:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:28,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 08:46:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:28,057 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-12-18 08:46:28,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:46:28,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431585559] [2021-12-18 08:46:28,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431585559] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:46:28,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106844171] [2021-12-18 08:46:28,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:28,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:46:28,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:46:28,060 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) [2021-12-18 08:46:28,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 08:46:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:29,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 4642 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 08:46:29,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:46:29,528 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-12-18 08:46:29,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:46:29,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106844171] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:46:29,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 08:46:29,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2021-12-18 08:46:29,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873206624] [2021-12-18 08:46:29,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:46:29,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 08:46:29,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:46:29,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 08:46:29,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-12-18 08:46:29,530 INFO L87 Difference]: Start difference. First operand 31655 states and 48013 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 5 states have internal predecessors, (108), 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) [2021-12-18 08:46:30,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:46:30,584 INFO L93 Difference]: Finished difference Result 73929 states and 112152 transitions. [2021-12-18 08:46:30,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 08:46:30,584 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 5 states have internal predecessors, (108), 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 249 [2021-12-18 08:46:30,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:46:30,797 INFO L225 Difference]: With dead ends: 73929 [2021-12-18 08:46:30,797 INFO L226 Difference]: Without dead ends: 42296 [2021-12-18 08:46:30,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2021-12-18 08:46:30,901 INFO L933 BasicCegarLoop]: 3078 mSDtfsCounter, 2064 mSDsluCounter, 14307 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2068 SdHoareTripleChecker+Valid, 17385 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 08:46:30,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2068 Valid, 17385 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 08:46:30,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42296 states. [2021-12-18 08:46:32,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42296 to 42126. [2021-12-18 08:46:32,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42126 states, 28188 states have (on average 1.3547608911593585) internal successors, (38188), 28950 states have internal predecessors, (38188), 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) [2021-12-18 08:46:32,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42126 states to 42126 states and 63980 transitions. [2021-12-18 08:46:32,724 INFO L78 Accepts]: Start accepts. Automaton has 42126 states and 63980 transitions. Word has length 249 [2021-12-18 08:46:32,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:46:32,725 INFO L470 AbstractCegarLoop]: Abstraction has 42126 states and 63980 transitions. [2021-12-18 08:46:32,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 5 states have internal predecessors, (108), 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) [2021-12-18 08:46:32,725 INFO L276 IsEmpty]: Start isEmpty. Operand 42126 states and 63980 transitions. [2021-12-18 08:46:32,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-12-18 08:46:32,762 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:46:32,762 INFO L514 BasicCegarLoop]: 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] [2021-12-18 08:46:32,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-18 08:46:32,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-18 08:46:32,980 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:46:32,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:46:32,980 INFO L85 PathProgramCache]: Analyzing trace with hash -498212104, now seen corresponding path program 1 times [2021-12-18 08:46:32,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:46:32,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802779850] [2021-12-18 08:46:32,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:32,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:46:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:46:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:46:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:46:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:46:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 08:46:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 08:46:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 08:46:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 08:46:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 08:46:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 08:46:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 08:46:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 08:46:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 08:46:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 08:46:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 08:46:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 08:46:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 08:46:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 08:46:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 08:46:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:46:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 08:46:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-18 08:46:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 08:46:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-18 08:46:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 08:46:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-18 08:46:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:33,854 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-12-18 08:46:33,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:46:33,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802779850] [2021-12-18 08:46:33,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802779850] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:46:33,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931568569] [2021-12-18 08:46:33,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:33,855 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:46:33,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:46:33,856 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) [2021-12-18 08:46:33,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 08:46:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:34,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 4620 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 08:46:34,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:46:35,225 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-12-18 08:46:35,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:46:35,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931568569] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:46:35,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 08:46:35,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2021-12-18 08:46:35,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444229379] [2021-12-18 08:46:35,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:46:35,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 08:46:35,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:46:35,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 08:46:35,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-12-18 08:46:35,229 INFO L87 Difference]: Start difference. First operand 42126 states and 63980 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 5 states have internal predecessors, (109), 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) [2021-12-18 08:46:36,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:46:36,733 INFO L93 Difference]: Finished difference Result 94860 states and 144068 transitions. [2021-12-18 08:46:36,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 08:46:36,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 5 states have internal predecessors, (109), 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 262 [2021-12-18 08:46:36,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:46:37,117 INFO L225 Difference]: With dead ends: 94860 [2021-12-18 08:46:37,117 INFO L226 Difference]: Without dead ends: 52756 [2021-12-18 08:46:37,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2021-12-18 08:46:37,241 INFO L933 BasicCegarLoop]: 3336 mSDtfsCounter, 2064 mSDsluCounter, 15339 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2068 SdHoareTripleChecker+Valid, 18675 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 08:46:37,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2068 Valid, 18675 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 08:46:37,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52756 states. [2021-12-18 08:46:38,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52756 to 42148. [2021-12-18 08:46:38,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42148 states, 28204 states have (on average 1.3545596369309318) internal successors, (38204), 28968 states have internal predecessors, (38204), 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) [2021-12-18 08:46:39,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42148 states to 42148 states and 64005 transitions. [2021-12-18 08:46:39,088 INFO L78 Accepts]: Start accepts. Automaton has 42148 states and 64005 transitions. Word has length 262 [2021-12-18 08:46:39,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:46:39,088 INFO L470 AbstractCegarLoop]: Abstraction has 42148 states and 64005 transitions. [2021-12-18 08:46:39,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 5 states have internal predecessors, (109), 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) [2021-12-18 08:46:39,088 INFO L276 IsEmpty]: Start isEmpty. Operand 42148 states and 64005 transitions. [2021-12-18 08:46:39,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-12-18 08:46:39,293 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:46:39,294 INFO L514 BasicCegarLoop]: 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] [2021-12-18 08:46:39,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 08:46:39,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:46:39,508 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:46:39,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:46:39,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1311657269, now seen corresponding path program 1 times [2021-12-18 08:46:39,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:46:39,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731208532] [2021-12-18 08:46:39,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:39,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:46:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:46:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:46:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:46:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:46:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 08:46:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 08:46:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 08:46:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 08:46:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 08:46:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 08:46:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 08:46:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 08:46:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 08:46:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 08:46:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 08:46:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 08:46:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 08:46:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 08:46:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 08:46:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:39,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:46:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-18 08:46:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 08:46:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 08:46:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 08:46:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 08:46:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 08:46:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:39,948 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-12-18 08:46:39,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:46:39,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731208532] [2021-12-18 08:46:39,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731208532] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:46:39,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598284699] [2021-12-18 08:46:39,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:39,949 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:46:39,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:46:39,950 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) [2021-12-18 08:46:39,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 08:46:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:41,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 4622 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 08:46:41,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:46:41,408 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-12-18 08:46:41,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:46:41,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598284699] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:46:41,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 08:46:41,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2021-12-18 08:46:41,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107318880] [2021-12-18 08:46:41,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:46:41,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 08:46:41,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:46:41,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 08:46:41,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-12-18 08:46:41,411 INFO L87 Difference]: Start difference. First operand 42148 states and 64005 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) [2021-12-18 08:46:42,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:46:42,857 INFO L93 Difference]: Finished difference Result 94890 states and 144101 transitions. [2021-12-18 08:46:42,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 08:46:42,857 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 [2021-12-18 08:46:42,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:46:43,072 INFO L225 Difference]: With dead ends: 94890 [2021-12-18 08:46:43,072 INFO L226 Difference]: Without dead ends: 52764 [2021-12-18 08:46:43,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2021-12-18 08:46:43,189 INFO L933 BasicCegarLoop]: 3425 mSDtfsCounter, 2064 mSDsluCounter, 15695 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2068 SdHoareTripleChecker+Valid, 19120 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 08:46:43,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2068 Valid, 19120 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 08:46:43,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52764 states. [2021-12-18 08:46:44,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52764 to 42161. [2021-12-18 08:46:44,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42161 states, 28214 states have (on average 1.3544339689515843) internal successors, (38214), 28977 states have internal predecessors, (38214), 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) [2021-12-18 08:46:44,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42161 states to 42161 states and 64018 transitions. [2021-12-18 08:46:44,970 INFO L78 Accepts]: Start accepts. Automaton has 42161 states and 64018 transitions. Word has length 263 [2021-12-18 08:46:44,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:46:44,971 INFO L470 AbstractCegarLoop]: Abstraction has 42161 states and 64018 transitions. [2021-12-18 08:46:44,971 INFO L471 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) [2021-12-18 08:46:44,971 INFO L276 IsEmpty]: Start isEmpty. Operand 42161 states and 64018 transitions. [2021-12-18 08:46:44,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-12-18 08:46:44,999 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:46:45,000 INFO L514 BasicCegarLoop]: 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] [2021-12-18 08:46:45,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-18 08:46:45,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:46:45,200 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:46:45,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:46:45,201 INFO L85 PathProgramCache]: Analyzing trace with hash 469072661, now seen corresponding path program 1 times [2021-12-18 08:46:45,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:46:45,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27341739] [2021-12-18 08:46:45,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:45,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:46:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:46:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:46:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:46:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:46:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:46:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 08:46:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 08:46:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 08:46:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 08:46:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 08:46:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 08:46:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 08:46:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 08:46:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 08:46:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 08:46:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 08:46:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 08:46:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 08:46:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 08:46:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 08:46:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-18 08:46:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:46:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 08:46:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 08:46:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:46:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-18 08:46:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-18 08:46:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:45,609 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2021-12-18 08:46:45,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:46:45,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27341739] [2021-12-18 08:46:45,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27341739] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:46:45,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561138158] [2021-12-18 08:46:45,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:46:45,610 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:46:45,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:46:45,624 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) [2021-12-18 08:46:45,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-18 08:46:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:46:46,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 4713 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-18 08:46:46,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:46:47,181 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-18 08:46:47,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 08:46:47,707 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 08:46:47,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561138158] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 08:46:47,707 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 08:46:47,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 25 [2021-12-18 08:46:47,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063730318] [2021-12-18 08:46:47,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 08:46:47,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-12-18 08:46:47,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:46:47,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-12-18 08:46:47,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-12-18 08:46:47,709 INFO L87 Difference]: Start difference. First operand 42161 states and 64018 transitions. Second operand has 25 states, 25 states have (on average 7.72) internal successors, (193), 15 states have internal predecessors, (193), 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) [2021-12-18 08:48:09,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:48:09,162 INFO L93 Difference]: Finished difference Result 118964 states and 181657 transitions. [2021-12-18 08:48:09,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-12-18 08:48:09,162 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.72) internal successors, (193), 15 states have internal predecessors, (193), 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 264 [2021-12-18 08:48:09,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:48:09,572 INFO L225 Difference]: With dead ends: 118964 [2021-12-18 08:48:09,572 INFO L226 Difference]: Without dead ends: 76629 [2021-12-18 08:48:09,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 748 GetRequests, 610 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6938 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=2874, Invalid=16308, Unknown=0, NotChecked=0, Total=19182 [2021-12-18 08:48:09,690 INFO L933 BasicCegarLoop]: 4146 mSDtfsCounter, 13601 mSDsluCounter, 36509 mSDsCounter, 0 mSdLazyCounter, 48464 mSolverCounterSat, 12101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14216 SdHoareTripleChecker+Valid, 40655 SdHoareTripleChecker+Invalid, 60565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 12101 IncrementalHoareTripleChecker+Valid, 48464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.1s IncrementalHoareTripleChecker+Time [2021-12-18 08:48:09,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14216 Valid, 40655 Invalid, 60565 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [12101 Valid, 48464 Invalid, 0 Unknown, 0 Unchecked, 75.1s Time] [2021-12-18 08:48:09,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76629 states. [2021-12-18 08:48:12,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76629 to 72811. [2021-12-18 08:48:12,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72811 states, 48662 states have (on average 1.3526365541901277) internal successors, (65822), 49980 states have internal predecessors, (65822), 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) [2021-12-18 08:48:12,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72811 states to 72811 states and 110381 transitions. [2021-12-18 08:48:12,637 INFO L78 Accepts]: Start accepts. Automaton has 72811 states and 110381 transitions. Word has length 264 [2021-12-18 08:48:12,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:48:12,637 INFO L470 AbstractCegarLoop]: Abstraction has 72811 states and 110381 transitions. [2021-12-18 08:48:12,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.72) internal successors, (193), 15 states have internal predecessors, (193), 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) [2021-12-18 08:48:12,638 INFO L276 IsEmpty]: Start isEmpty. Operand 72811 states and 110381 transitions. [2021-12-18 08:48:12,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-12-18 08:48:12,682 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:48:12,682 INFO L514 BasicCegarLoop]: 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, 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] [2021-12-18 08:48:12,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-18 08:48:12,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-18 08:48:12,895 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:48:12,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:48:12,895 INFO L85 PathProgramCache]: Analyzing trace with hash -2046004523, now seen corresponding path program 1 times [2021-12-18 08:48:12,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:48:12,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877526788] [2021-12-18 08:48:12,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:48:12,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:48:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:48:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:48:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:48:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:48:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:48:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:48:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:48:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:48:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:48:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:48:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:48:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:48:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 08:48:13,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:48:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 08:48:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:48:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 08:48:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:48:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 08:48:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-18 08:48:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 08:48:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 08:48:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 08:48:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:48:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 08:48:13,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 08:48:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 08:48:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 08:48:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 08:48:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 08:48:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-18 08:48:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 08:48:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:48:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:48:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 08:48:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:48:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 08:48:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 08:48:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-18 08:48:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:48:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-18 08:48:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-18 08:48:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:13,297 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-12-18 08:48:13,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:48:13,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877526788] [2021-12-18 08:48:13,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877526788] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:48:13,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315363823] [2021-12-18 08:48:13,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:48:13,298 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:48:13,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:48:13,299 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) [2021-12-18 08:48:13,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-18 08:48:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:48:14,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 4691 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-18 08:48:14,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:48:14,700 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-12-18 08:48:14,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 08:48:15,272 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2021-12-18 08:48:15,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315363823] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 08:48:15,272 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 08:48:15,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 25 [2021-12-18 08:48:15,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291488339] [2021-12-18 08:48:15,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 08:48:15,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-12-18 08:48:15,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:48:15,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-12-18 08:48:15,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-12-18 08:48:15,274 INFO L87 Difference]: Start difference. First operand 72811 states and 110381 transitions. Second operand has 25 states, 25 states have (on average 7.8) internal successors, (195), 15 states have internal predecessors, (195), 5 states have call successors, (71), 10 states have call predecessors, (71), 7 states have return successors, (62), 6 states have call predecessors, (62), 5 states have call successors, (62) [2021-12-18 08:49:01,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:49:24,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:49:24,143 INFO L93 Difference]: Finished difference Result 201588 states and 306933 transitions. [2021-12-18 08:49:24,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-12-18 08:49:24,143 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.8) internal successors, (195), 15 states have internal predecessors, (195), 5 states have call successors, (71), 10 states have call predecessors, (71), 7 states have return successors, (62), 6 states have call predecessors, (62), 5 states have call successors, (62) Word has length 277 [2021-12-18 08:49:24,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:49:24,735 INFO L225 Difference]: With dead ends: 201588 [2021-12-18 08:49:24,736 INFO L226 Difference]: Without dead ends: 128477 [2021-12-18 08:49:24,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 780 GetRequests, 642 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7084 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=2874, Invalid=16308, Unknown=0, NotChecked=0, Total=19182 [2021-12-18 08:49:24,966 INFO L933 BasicCegarLoop]: 3908 mSDtfsCounter, 14259 mSDsluCounter, 35269 mSDsCounter, 0 mSdLazyCounter, 41796 mSolverCounterSat, 11979 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14873 SdHoareTripleChecker+Valid, 39177 SdHoareTripleChecker+Invalid, 53775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 11979 IncrementalHoareTripleChecker+Valid, 41796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.9s IncrementalHoareTripleChecker+Time [2021-12-18 08:49:24,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14873 Valid, 39177 Invalid, 53775 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [11979 Valid, 41796 Invalid, 0 Unknown, 0 Unchecked, 60.9s Time] [2021-12-18 08:49:25,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128477 states. [2021-12-18 08:49:29,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128477 to 119838. [2021-12-18 08:49:29,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119838 states, 79928 states have (on average 1.3514037633870484) internal successors, (108015), 82091 states have internal predecessors, (108015), 34710 states have call successors, (34710), 4894 states have call predecessors, (34710), 5199 states have return successors, (38609), 33716 states have call predecessors, (38609), 34709 states have call successors, (38609) [2021-12-18 08:49:30,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119838 states to 119838 states and 181334 transitions. [2021-12-18 08:49:30,086 INFO L78 Accepts]: Start accepts. Automaton has 119838 states and 181334 transitions. Word has length 277 [2021-12-18 08:49:30,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:49:30,086 INFO L470 AbstractCegarLoop]: Abstraction has 119838 states and 181334 transitions. [2021-12-18 08:49:30,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.8) internal successors, (195), 15 states have internal predecessors, (195), 5 states have call successors, (71), 10 states have call predecessors, (71), 7 states have return successors, (62), 6 states have call predecessors, (62), 5 states have call successors, (62) [2021-12-18 08:49:30,087 INFO L276 IsEmpty]: Start isEmpty. Operand 119838 states and 181334 transitions. [2021-12-18 08:49:30,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-12-18 08:49:30,145 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:49:30,145 INFO L514 BasicCegarLoop]: 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] [2021-12-18 08:49:30,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-18 08:49:30,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:49:30,346 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:49:30,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:49:30,346 INFO L85 PathProgramCache]: Analyzing trace with hash 556260846, now seen corresponding path program 1 times [2021-12-18 08:49:30,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:49:30,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668530093] [2021-12-18 08:49:30,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:49:30,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:49:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:49:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:49:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:49:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:49:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:49:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:49:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:49:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:49:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:49:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:49:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:49:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:49:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 08:49:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:49:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 08:49:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:49:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 08:49:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:49:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 08:49:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 08:49:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 08:49:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 08:49:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 08:49:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:49:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 08:49:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 08:49:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 08:49:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 08:49:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 08:49:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 08:49:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:30,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 08:49:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:31,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-18 08:49:31,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:31,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:49:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:31,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:49:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:31,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 08:49:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:31,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 08:49:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:31,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:49:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:31,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 08:49:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:31,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 08:49:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:31,051 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2021-12-18 08:49:31,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:49:31,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668530093] [2021-12-18 08:49:31,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668530093] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:49:31,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638209292] [2021-12-18 08:49:31,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:49:31,052 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:49:31,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:49:31,053 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 08:49:31,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-18 08:49:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:49:32,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 4717 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-18 08:49:32,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:49:32,537 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-18 08:49:32,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 08:49:33,074 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-12-18 08:49:33,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638209292] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 08:49:33,075 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 08:49:33,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 25 [2021-12-18 08:49:33,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943357958] [2021-12-18 08:49:33,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 08:49:33,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-12-18 08:49:33,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:49:33,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-12-18 08:49:33,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-12-18 08:49:33,077 INFO L87 Difference]: Start difference. First operand 119838 states and 181334 transitions. Second operand has 25 states, 25 states have (on average 7.88) internal successors, (197), 15 states have internal predecessors, (197), 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) [2021-12-18 08:50:26,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:50:35,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:50:58,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:50:58,819 INFO L93 Difference]: Finished difference Result 292366 states and 443700 transitions. [2021-12-18 08:50:58,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-12-18 08:50:58,819 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.88) internal successors, (197), 15 states have internal predecessors, (197), 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 266 [2021-12-18 08:50:58,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:50:59,712 INFO L225 Difference]: With dead ends: 292366 [2021-12-18 08:50:59,712 INFO L226 Difference]: Without dead ends: 172095 [2021-12-18 08:51:00,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 752 GetRequests, 614 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7083 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=2874, Invalid=16308, Unknown=0, NotChecked=0, Total=19182 [2021-12-18 08:51:00,294 INFO L933 BasicCegarLoop]: 3626 mSDtfsCounter, 14748 mSDsluCounter, 32112 mSDsCounter, 0 mSdLazyCounter, 41713 mSolverCounterSat, 11002 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15361 SdHoareTripleChecker+Valid, 35738 SdHoareTripleChecker+Invalid, 52716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 11002 IncrementalHoareTripleChecker+Valid, 41713 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.8s IncrementalHoareTripleChecker+Time [2021-12-18 08:51:00,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15361 Valid, 35738 Invalid, 52716 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [11002 Valid, 41713 Invalid, 1 Unknown, 0 Unchecked, 75.8s Time] [2021-12-18 08:51:00,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172095 states. [2021-12-18 08:51:06,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172095 to 157969. [2021-12-18 08:51:06,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157969 states, 105079 states have (on average 1.349517981709) internal successors, (141806), 107879 states have internal predecessors, (141806), 45995 states have call successors, (45995), 6545 states have call predecessors, (45995), 6894 states have return successors, (50418), 44674 states have call predecessors, (50418), 45994 states have call successors, (50418) [2021-12-18 08:51:07,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157969 states to 157969 states and 238219 transitions. [2021-12-18 08:51:07,317 INFO L78 Accepts]: Start accepts. Automaton has 157969 states and 238219 transitions. Word has length 266 [2021-12-18 08:51:07,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:51:07,318 INFO L470 AbstractCegarLoop]: Abstraction has 157969 states and 238219 transitions. [2021-12-18 08:51:07,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.88) internal successors, (197), 15 states have internal predecessors, (197), 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) [2021-12-18 08:51:07,318 INFO L276 IsEmpty]: Start isEmpty. Operand 157969 states and 238219 transitions. [2021-12-18 08:51:07,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-12-18 08:51:07,381 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:51:07,381 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:51:07,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-18 08:51:07,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:51:07,596 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:51:07,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:51:07,596 INFO L85 PathProgramCache]: Analyzing trace with hash -2085002837, now seen corresponding path program 1 times [2021-12-18 08:51:07,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:51:07,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778669611] [2021-12-18 08:51:07,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:51:07,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:51:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:51:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:51:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:51:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:51:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:51:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:51:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:51:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:51:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 08:51:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 08:51:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 08:51:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 08:51:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:51:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 08:51:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 08:51:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 08:51:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 08:51:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 08:51:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 08:51:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 08:51:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 08:51:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 08:51:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 08:51:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 08:51:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 08:51:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-18 08:51:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 08:51:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:51:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:51:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:51:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 08:51:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-18 08:51:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 08:51:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-18 08:51:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-18 08:51:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-18 08:51:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 08:51:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-18 08:51:08,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:08,384 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-18 08:51:08,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:51:08,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778669611] [2021-12-18 08:51:08,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778669611] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:51:08,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:51:08,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 08:51:08,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944587875] [2021-12-18 08:51:08,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:51:08,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 08:51:08,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:51:08,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 08:51:08,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 08:51:08,386 INFO L87 Difference]: Start difference. First operand 157969 states and 238219 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (41), 8 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-12-18 08:51:19,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:51:23,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:51:23,053 INFO L93 Difference]: Finished difference Result 194508 states and 291271 transitions. [2021-12-18 08:51:23,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 08:51:23,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (41), 8 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 293 [2021-12-18 08:51:23,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:51:24,210 INFO L225 Difference]: With dead ends: 194508 [2021-12-18 08:51:24,210 INFO L226 Difference]: Without dead ends: 194505 [2021-12-18 08:51:24,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-18 08:51:24,309 INFO L933 BasicCegarLoop]: 2319 mSDtfsCounter, 1607 mSDsluCounter, 4006 mSDsCounter, 0 mSdLazyCounter, 2181 mSolverCounterSat, 1132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 6325 SdHoareTripleChecker+Invalid, 3313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1132 IncrementalHoareTripleChecker+Valid, 2181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2021-12-18 08:51:24,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1779 Valid, 6325 Invalid, 3313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1132 Valid, 2181 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2021-12-18 08:51:24,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194505 states. [2021-12-18 08:51:30,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194505 to 185877. [2021-12-18 08:51:30,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185877 states, 122461 states have (on average 1.3456610676051968) internal successors, (164791), 125883 states have internal predecessors, (164791), 54182 states have call successors, (54182), 8792 states have call predecessors, (54182), 9233 states have return successors, (59065), 52607 states have call predecessors, (59065), 54181 states have call successors, (59065) [2021-12-18 08:51:32,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185877 states to 185877 states and 278038 transitions. [2021-12-18 08:51:32,106 INFO L78 Accepts]: Start accepts. Automaton has 185877 states and 278038 transitions. Word has length 293 [2021-12-18 08:51:32,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:51:32,107 INFO L470 AbstractCegarLoop]: Abstraction has 185877 states and 278038 transitions. [2021-12-18 08:51:32,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (41), 8 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-12-18 08:51:32,107 INFO L276 IsEmpty]: Start isEmpty. Operand 185877 states and 278038 transitions. [2021-12-18 08:51:32,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-12-18 08:51:32,164 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:51:32,164 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:51:32,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 08:51:32,165 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:51:32,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:51:32,165 INFO L85 PathProgramCache]: Analyzing trace with hash 2135388352, now seen corresponding path program 1 times [2021-12-18 08:51:32,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:51:32,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987649196] [2021-12-18 08:51:32,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:51:32,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:51:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:51:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:51:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:51:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:51:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:51:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:51:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:51:32,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:51:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 08:51:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 08:51:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 08:51:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 08:51:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:51:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:51:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 08:51:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 08:51:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 08:51:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 08:51:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 08:51:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 08:51:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-18 08:51:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-18 08:51:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 08:51:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 08:51:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 08:51:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:51:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 08:51:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 08:51:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:51:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 08:51:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 08:51:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:51:32,946 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-12-18 08:51:32,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:51:32,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987649196] [2021-12-18 08:51:32,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987649196] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:51:32,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:51:32,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 08:51:32,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538773935] [2021-12-18 08:51:32,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:51:32,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 08:51:32,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:51:32,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 08:51:32,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:51:32,949 INFO L87 Difference]: Start difference. First operand 185877 states and 278038 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (35), 8 states have call predecessors, (35), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31)