./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-32_7a-drivers--scsi--3w-9xxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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-32_7a-drivers--scsi--3w-9xxx.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 c9b552a362a9e696d48563826feaca907111a4f22b87ac0d62165b45d307f684 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:38:12,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:38:12,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:38:12,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:38:12,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:38:12,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:38:12,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:38:12,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:38:12,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:38:12,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:38:12,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:38:12,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:38:12,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:38:12,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:38:12,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:38:12,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:38:12,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:38:12,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:38:12,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:38:12,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:38:12,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:38:12,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:38:12,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:38:12,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:38:12,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:38:12,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:38:12,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:38:12,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:38:12,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:38:12,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:38:12,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:38:12,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:38:12,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:38:12,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:38:12,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:38:12,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:38:12,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:38:12,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:38:12,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:38:12,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:38:12,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:38:12,770 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:38:12,788 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:38:12,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:38:12,790 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:38:12,790 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:38:12,790 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:38:12,791 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:38:12,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:38:12,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:38:12,791 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:38:12,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:38:12,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:38:12,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:38:12,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:38:12,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:38:12,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:38:12,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:38:12,793 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:38:12,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:38:12,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:38:12,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:38:12,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:38:12,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:38:12,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:38:12,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:38:12,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:38:12,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:38:12,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:38:12,794 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:38:12,795 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:38:12,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:38:12,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:38:12,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9b552a362a9e696d48563826feaca907111a4f22b87ac0d62165b45d307f684 [2021-12-21 16:38:12,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:38:13,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:38:13,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:38:13,003 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:38:13,004 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:38:13,005 INFO L432 ainManager$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-32_7a-drivers--scsi--3w-9xxx.ko-entry_point.cil.out.i [2021-12-21 16:38:13,070 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/095811a10/41acd75961a940ad811bce9d650272c1/FLAGdad0db2ae [2021-12-21 16:38:13,695 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:38:13,696 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--3w-9xxx.ko-entry_point.cil.out.i [2021-12-21 16:38:13,736 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/095811a10/41acd75961a940ad811bce9d650272c1/FLAGdad0db2ae [2021-12-21 16:38:14,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/095811a10/41acd75961a940ad811bce9d650272c1 [2021-12-21 16:38:14,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:38:14,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:38:14,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:38:14,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:38:14,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:38:14,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:38:14" (1/1) ... [2021-12-21 16:38:14,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e43c5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:38:14, skipping insertion in model container [2021-12-21 16:38:14,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:38:14" (1/1) ... [2021-12-21 16:38:14,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:38:14,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:38:15,443 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-32_7a-drivers--scsi--3w-9xxx.ko-entry_point.cil.out.i[280100,280113] [2021-12-21 16:38:15,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:38:15,623 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:38:15,871 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-32_7a-drivers--scsi--3w-9xxx.ko-entry_point.cil.out.i[280100,280113] [2021-12-21 16:38:15,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:38:15,962 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:38:15,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:38:15 WrapperNode [2021-12-21 16:38:15,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:38:15,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:38:15,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:38:15,965 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:38:15,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:38:15" (1/1) ... [2021-12-21 16:38:16,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:38:15" (1/1) ... [2021-12-21 16:38:16,194 INFO L137 Inliner]: procedures = 305, calls = 2532, calls flagged for inlining = 126, calls inlined = 120, statements flattened = 5558 [2021-12-21 16:38:16,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:38:16,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:38:16,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:38:16,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:38:16,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:38:15" (1/1) ... [2021-12-21 16:38:16,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:38:15" (1/1) ... [2021-12-21 16:38:16,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:38:15" (1/1) ... [2021-12-21 16:38:16,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:38:15" (1/1) ... [2021-12-21 16:38:16,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:38:15" (1/1) ... [2021-12-21 16:38:16,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:38:15" (1/1) ... [2021-12-21 16:38:16,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:38:15" (1/1) ... [2021-12-21 16:38:16,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:38:16,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:38:16,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:38:16,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:38:16,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:38:15" (1/1) ... [2021-12-21 16:38:16,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:38:16,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:38:16,437 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) [2021-12-21 16:38:16,455 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 [2021-12-21 16:38:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-21 16:38:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-21 16:38:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:38:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:38:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-21 16:38:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-21 16:38:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:38:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:38:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 16:38:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 16:38:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-21 16:38:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-21 16:38:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:38:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:38:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure twa_get_request_id [2021-12-21 16:38:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_get_request_id [2021-12-21 16:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure twa_fill_sense [2021-12-21 16:38:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_fill_sense [2021-12-21 16:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2021-12-21 16:38:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2021-12-21 16:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-21 16:38:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-21 16:38:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_host [2021-12-21 16:38:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_host [2021-12-21 16:38:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:38:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:38:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:38:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:38:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_4 [2021-12-21 16:38:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_4 [2021-12-21 16:38:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-21 16:38:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-21 16:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 16:38:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 16:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-12-21 16:38:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-12-21 16:38:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure twa_resume [2021-12-21 16:38:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_resume [2021-12-21 16:38:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:38:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:38:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sglist [2021-12-21 16:38:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sglist [2021-12-21 16:38:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-21 16:38:16,472 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-21 16:38:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 16:38:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 16:38:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure twa_remove [2021-12-21 16:38:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_remove [2021-12-21 16:38:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:38:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure twa_reset_sequence [2021-12-21 16:38:16,473 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_reset_sequence [2021-12-21 16:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-21 16:38:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-21 16:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:38:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure twa_get_param [2021-12-21 16:38:16,474 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_get_param [2021-12-21 16:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-21 16:38:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-21 16:38:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure twa_string_lookup [2021-12-21 16:38:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_string_lookup [2021-12-21 16:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 16:38:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 16:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:38:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-21 16:38:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-21 16:38:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:38:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure __twa_shutdown [2021-12-21 16:38:16,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __twa_shutdown [2021-12-21 16:38:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_twa_chrdev_mutex [2021-12-21 16:38:16,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_twa_chrdev_mutex [2021-12-21 16:38:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-21 16:38:16,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-21 16:38:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2021-12-21 16:38:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2021-12-21 16:38:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure twa_shutdown [2021-12-21 16:38:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_shutdown [2021-12-21 16:38:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure twa_post_command_packet [2021-12-21 16:38:16,478 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_post_command_packet [2021-12-21 16:38:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-21 16:38:16,479 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-21 16:38:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure twa_free_request_id [2021-12-21 16:38:16,479 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_free_request_id [2021-12-21 16:38:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-12-21 16:38:16,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-12-21 16:38:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:38:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dma_unmap [2021-12-21 16:38:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dma_unmap [2021-12-21 16:38:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure twa_decode_bits [2021-12-21 16:38:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_decode_bits [2021-12-21 16:38:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:38:16,480 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-21 16:38:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-21 16:38:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:38:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-12-21 16:38:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-12-21 16:38:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 16:38:16,482 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 16:38:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure pci_try_set_mwi [2021-12-21 16:38:16,482 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_try_set_mwi [2021-12-21 16:38:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-21 16:38:16,482 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-21 16:38:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-21 16:38:16,483 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-21 16:38:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure twa_initconnection [2021-12-21 16:38:16,483 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_initconnection [2021-12-21 16:38:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-21 16:38:16,483 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-21 16:38:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:38:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-21 16:38:16,483 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-21 16:38:16,484 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-21 16:38:16,484 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-21 16:38:16,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:38:16,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:38:16,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-21 16:38:16,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-21 16:38:16,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ioctl_lock_of_TAG_TW_Device_Extension [2021-12-21 16:38:16,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ioctl_lock_of_TAG_TW_Device_Extension [2021-12-21 16:38:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_msi_exact [2021-12-21 16:38:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_msi_exact [2021-12-21 16:38:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure twa_aen_queue_event [2021-12-21 16:38:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_aen_queue_event [2021-12-21 16:38:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:38:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure twa_interrupt [2021-12-21 16:38:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_interrupt [2021-12-21 16:38:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-21 16:38:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-21 16:38:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-21 16:38:16,493 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-21 16:38:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sg_count [2021-12-21 16:38:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sg_count [2021-12-21 16:38:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:38:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 16:38:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 16:38:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-21 16:38:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-21 16:38:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:38:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-21 16:38:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-21 16:38:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:38:16,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:38:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-12-21 16:38:16,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-12-21 16:38:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure twa_allocate_memory [2021-12-21 16:38:16,495 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_allocate_memory [2021-12-21 16:38:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2021-12-21 16:38:16,495 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2021-12-21 16:38:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure twa_poll_response [2021-12-21 16:38:16,495 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_poll_response [2021-12-21 16:38:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2021-12-21 16:38:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2021-12-21 16:38:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ioctl_lock_of_TAG_TW_Device_Extension [2021-12-21 16:38:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ioctl_lock_of_TAG_TW_Device_Extension [2021-12-21 16:38:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure twa_scsiop_execute_scsi [2021-12-21 16:38:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_scsiop_execute_scsi [2021-12-21 16:38:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2021-12-21 16:38:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2021-12-21 16:38:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure twa_reset_device_extension [2021-12-21 16:38:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_reset_device_extension [2021-12-21 16:38:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure twa_free_device_extension [2021-12-21 16:38:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_free_device_extension [2021-12-21 16:38:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-21 16:38:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-21 16:38:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_twa_chrdev_mutex [2021-12-21 16:38:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_twa_chrdev_mutex [2021-12-21 16:38:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure twa_check_bits [2021-12-21 16:38:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_check_bits [2021-12-21 16:38:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-21 16:38:16,498 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-21 16:38:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-21 16:38:16,498 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-21 16:38:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-21 16:38:16,498 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-21 16:38:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-21 16:38:16,498 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-21 16:38:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-21 16:38:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-21 16:38:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:38:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure twa_aen_read_queue [2021-12-21 16:38:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_aen_read_queue [2021-12-21 16:38:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:38:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:38:17,099 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:38:17,102 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:38:17,260 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:38:22,516 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:38:22,527 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:38:22,527 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 16:38:22,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:38:22 BoogieIcfgContainer [2021-12-21 16:38:22,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:38:22,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:38:22,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:38:22,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:38:22,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:38:14" (1/3) ... [2021-12-21 16:38:22,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f11b077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:38:22, skipping insertion in model container [2021-12-21 16:38:22,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:38:15" (2/3) ... [2021-12-21 16:38:22,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f11b077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:38:22, skipping insertion in model container [2021-12-21 16:38:22,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:38:22" (3/3) ... [2021-12-21 16:38:22,534 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--3w-9xxx.ko-entry_point.cil.out.i [2021-12-21 16:38:22,537 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:38:22,538 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:38:22,585 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:38:22,589 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 [2021-12-21 16:38:22,589 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:38:22,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 1579 states, 1157 states have (on average 1.3785652549697494) internal successors, (1595), 1194 states have internal predecessors, (1595), 338 states have call successors, (338), 83 states have call predecessors, (338), 82 states have return successors, (328), 327 states have call predecessors, (328), 328 states have call successors, (328) [2021-12-21 16:38:22,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-12-21 16:38:22,625 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:38:22,625 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:38:22,626 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:38:22,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:38:22,629 INFO L85 PathProgramCache]: Analyzing trace with hash -650807549, now seen corresponding path program 1 times [2021-12-21 16:38:22,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:38:22,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623096927] [2021-12-21 16:38:22,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:38:22,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:38:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:38:23,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:38:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:38:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:38:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:38:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:38:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-21 16:38:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 16:38:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 16:38:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 16:38:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 16:38:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-21 16:38:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-21 16:38:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 16:38:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:23,490 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-12-21 16:38:23,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:38:23,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623096927] [2021-12-21 16:38:23,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623096927] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:38:23,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:38:23,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:38:23,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103354557] [2021-12-21 16:38:23,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:38:23,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:38:23,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:38:23,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:38:23,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:38:23,525 INFO L87 Difference]: Start difference. First operand has 1579 states, 1157 states have (on average 1.3785652549697494) internal successors, (1595), 1194 states have internal predecessors, (1595), 338 states have call successors, (338), 83 states have call predecessors, (338), 82 states have return successors, (328), 327 states have call predecessors, (328), 328 states have call successors, (328) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-21 16:38:26,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:38:26,041 INFO L93 Difference]: Finished difference Result 3308 states and 4863 transitions. [2021-12-21 16:38:26,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 16:38:26,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 207 [2021-12-21 16:38:26,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:38:26,064 INFO L225 Difference]: With dead ends: 3308 [2021-12-21 16:38:26,064 INFO L226 Difference]: Without dead ends: 1717 [2021-12-21 16:38:26,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:38:26,077 INFO L933 BasicCegarLoop]: 2118 mSDtfsCounter, 1325 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 1272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 1983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1272 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-21 16:38:26,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1344 Valid, 3253 Invalid, 1983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1272 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-21 16:38:26,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2021-12-21 16:38:26,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1562. [2021-12-21 16:38:26,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1152 states have (on average 1.3689236111111112) internal successors, (1577), 1177 states have internal predecessors, (1577), 328 states have call successors, (328), 82 states have call predecessors, (328), 81 states have return successors, (318), 317 states have call predecessors, (318), 318 states have call successors, (318) [2021-12-21 16:38:26,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2223 transitions. [2021-12-21 16:38:26,197 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2223 transitions. Word has length 207 [2021-12-21 16:38:26,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:38:26,197 INFO L470 AbstractCegarLoop]: Abstraction has 1562 states and 2223 transitions. [2021-12-21 16:38:26,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-21 16:38:26,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2223 transitions. [2021-12-21 16:38:26,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-12-21 16:38:26,208 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:38:26,208 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:38:26,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:38:26,209 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:38:26,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:38:26,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1985613877, now seen corresponding path program 1 times [2021-12-21 16:38:26,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:38:26,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060388270] [2021-12-21 16:38:26,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:38:26,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:38:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:38:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:38:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:38:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:38:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:38:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:38:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-21 16:38:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:26,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 16:38:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 16:38:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 16:38:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 16:38:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-21 16:38:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-21 16:38:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 16:38:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:26,690 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-12-21 16:38:26,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:38:26,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060388270] [2021-12-21 16:38:26,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060388270] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:38:26,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:38:26,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:38:26,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666548031] [2021-12-21 16:38:26,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:38:26,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:38:26,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:38:26,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:38:26,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:38:26,693 INFO L87 Difference]: Start difference. First operand 1562 states and 2223 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-12-21 16:38:30,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:38:30,917 INFO L93 Difference]: Finished difference Result 4824 states and 7016 transitions. [2021-12-21 16:38:30,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:38:30,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 207 [2021-12-21 16:38:30,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:38:30,939 INFO L225 Difference]: With dead ends: 4824 [2021-12-21 16:38:30,940 INFO L226 Difference]: Without dead ends: 3298 [2021-12-21 16:38:30,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:38:30,949 INFO L933 BasicCegarLoop]: 2391 mSDtfsCounter, 4509 mSDsluCounter, 2931 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 2525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4718 SdHoareTripleChecker+Valid, 5322 SdHoareTripleChecker+Invalid, 4004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2525 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:38:30,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4718 Valid, 5322 Invalid, 4004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2525 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-12-21 16:38:30,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3298 states. [2021-12-21 16:38:31,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3298 to 2992. [2021-12-21 16:38:31,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2992 states, 2224 states have (on average 1.3741007194244603) internal successors, (3056), 2266 states have internal predecessors, (3056), 606 states have call successors, (606), 159 states have call predecessors, (606), 161 states have return successors, (632), 592 states have call predecessors, (632), 596 states have call successors, (632) [2021-12-21 16:38:31,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2992 states to 2992 states and 4294 transitions. [2021-12-21 16:38:31,058 INFO L78 Accepts]: Start accepts. Automaton has 2992 states and 4294 transitions. Word has length 207 [2021-12-21 16:38:31,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:38:31,060 INFO L470 AbstractCegarLoop]: Abstraction has 2992 states and 4294 transitions. [2021-12-21 16:38:31,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-12-21 16:38:31,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2992 states and 4294 transitions. [2021-12-21 16:38:31,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-12-21 16:38:31,062 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:38:31,062 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:38:31,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:38:31,062 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:38:31,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:38:31,063 INFO L85 PathProgramCache]: Analyzing trace with hash 127928896, now seen corresponding path program 1 times [2021-12-21 16:38:31,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:38:31,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917333306] [2021-12-21 16:38:31,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:38:31,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:38:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:38:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:38:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:38:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:38:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:31,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:38:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:38:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-21 16:38:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 16:38:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 16:38:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 16:38:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 16:38:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-21 16:38:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-21 16:38:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 16:38:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-12-21 16:38:31,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:38:31,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917333306] [2021-12-21 16:38:31,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917333306] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:38:31,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:38:31,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:38:31,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244479272] [2021-12-21 16:38:31,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:38:31,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:38:31,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:38:31,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:38:31,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:38:31,459 INFO L87 Difference]: Start difference. First operand 2992 states and 4294 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-12-21 16:38:36,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:38:36,221 INFO L93 Difference]: Finished difference Result 9395 states and 13724 transitions. [2021-12-21 16:38:36,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:38:36,222 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 207 [2021-12-21 16:38:36,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:38:36,269 INFO L225 Difference]: With dead ends: 9395 [2021-12-21 16:38:36,270 INFO L226 Difference]: Without dead ends: 6439 [2021-12-21 16:38:36,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:38:36,285 INFO L933 BasicCegarLoop]: 2407 mSDtfsCounter, 3671 mSDsluCounter, 4076 mSDsCounter, 0 mSdLazyCounter, 2295 mSolverCounterSat, 1764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3902 SdHoareTripleChecker+Valid, 6483 SdHoareTripleChecker+Invalid, 4059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1764 IncrementalHoareTripleChecker+Valid, 2295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-21 16:38:36,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3902 Valid, 6483 Invalid, 4059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1764 Valid, 2295 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-21 16:38:36,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6439 states. [2021-12-21 16:38:36,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6439 to 5913. [2021-12-21 16:38:36,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5913 states, 4406 states have (on average 1.374943259192011) internal successors, (6058), 4481 states have internal predecessors, (6058), 1185 states have call successors, (1185), 316 states have call predecessors, (1185), 321 states have return successors, (1247), 1167 states have call predecessors, (1247), 1175 states have call successors, (1247) [2021-12-21 16:38:36,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5913 states to 5913 states and 8490 transitions. [2021-12-21 16:38:36,467 INFO L78 Accepts]: Start accepts. Automaton has 5913 states and 8490 transitions. Word has length 207 [2021-12-21 16:38:36,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:38:36,469 INFO L470 AbstractCegarLoop]: Abstraction has 5913 states and 8490 transitions. [2021-12-21 16:38:36,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-12-21 16:38:36,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5913 states and 8490 transitions. [2021-12-21 16:38:36,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-12-21 16:38:36,473 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:38:36,473 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:38:36,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 16:38:36,473 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:38:36,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:38:36,474 INFO L85 PathProgramCache]: Analyzing trace with hash 406314375, now seen corresponding path program 1 times [2021-12-21 16:38:36,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:38:36,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939294159] [2021-12-21 16:38:36,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:38:36,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:38:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:38:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:38:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:38:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:38:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:38:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:38:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-21 16:38:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 16:38:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 16:38:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 16:38:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 16:38:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-21 16:38:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-21 16:38:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 16:38:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-21 16:38:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:36,940 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-12-21 16:38:36,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:38:36,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939294159] [2021-12-21 16:38:36,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939294159] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:38:36,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:38:36,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:38:36,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727819591] [2021-12-21 16:38:36,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:38:36,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:38:36,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:38:36,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:38:36,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:38:36,943 INFO L87 Difference]: Start difference. First operand 5913 states and 8490 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-21 16:38:40,928 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 [] [2021-12-21 16:38:45,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:38:45,185 INFO L93 Difference]: Finished difference Result 17868 states and 26140 transitions. [2021-12-21 16:38:45,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:38:45,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 216 [2021-12-21 16:38:45,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:38:45,248 INFO L225 Difference]: With dead ends: 17868 [2021-12-21 16:38:45,248 INFO L226 Difference]: Without dead ends: 11991 [2021-12-21 16:38:45,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:38:45,276 INFO L933 BasicCegarLoop]: 2332 mSDtfsCounter, 3468 mSDsluCounter, 4974 mSDsCounter, 0 mSdLazyCounter, 2927 mSolverCounterSat, 1732 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3659 SdHoareTripleChecker+Valid, 7306 SdHoareTripleChecker+Invalid, 4660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1732 IncrementalHoareTripleChecker+Valid, 2927 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-12-21 16:38:45,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3659 Valid, 7306 Invalid, 4660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1732 Valid, 2927 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2021-12-21 16:38:45,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11991 states. [2021-12-21 16:38:45,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11991 to 10941. [2021-12-21 16:38:45,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10941 states, 8134 states have (on average 1.374477501844111) internal successors, (11180), 8277 states have internal predecessors, (11180), 2195 states have call successors, (2195), 598 states have call predecessors, (2195), 611 states have return successors, (2405), 2169 states have call predecessors, (2405), 2185 states have call successors, (2405) [2021-12-21 16:38:45,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10941 states to 10941 states and 15780 transitions. [2021-12-21 16:38:45,646 INFO L78 Accepts]: Start accepts. Automaton has 10941 states and 15780 transitions. Word has length 216 [2021-12-21 16:38:45,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:38:45,646 INFO L470 AbstractCegarLoop]: Abstraction has 10941 states and 15780 transitions. [2021-12-21 16:38:45,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-21 16:38:45,647 INFO L276 IsEmpty]: Start isEmpty. Operand 10941 states and 15780 transitions. [2021-12-21 16:38:45,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-21 16:38:45,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:38:45,650 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:38:45,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 16:38:45,650 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:38:45,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:38:45,651 INFO L85 PathProgramCache]: Analyzing trace with hash 557384795, now seen corresponding path program 1 times [2021-12-21 16:38:45,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:38:45,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68381547] [2021-12-21 16:38:45,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:38:45,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:38:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:38:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:45,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:38:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:38:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:38:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:38:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:38:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-21 16:38:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 16:38:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 16:38:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 16:38:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 16:38:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-21 16:38:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-21 16:38:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:45,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:46,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 16:38:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:46,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:46,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-21 16:38:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:46,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:46,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:46,022 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-12-21 16:38:46,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:38:46,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68381547] [2021-12-21 16:38:46,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68381547] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:38:46,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:38:46,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:38:46,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513249200] [2021-12-21 16:38:46,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:38:46,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:38:46,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:38:46,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:38:46,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:38:46,025 INFO L87 Difference]: Start difference. First operand 10941 states and 15780 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2021-12-21 16:38:49,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:38:49,211 INFO L93 Difference]: Finished difference Result 11982 states and 17690 transitions. [2021-12-21 16:38:49,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 16:38:49,211 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 227 [2021-12-21 16:38:49,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:38:49,279 INFO L225 Difference]: With dead ends: 11982 [2021-12-21 16:38:49,279 INFO L226 Difference]: Without dead ends: 11969 [2021-12-21 16:38:49,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:38:49,290 INFO L933 BasicCegarLoop]: 2094 mSDtfsCounter, 2920 mSDsluCounter, 2105 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 1027 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3134 SdHoareTripleChecker+Valid, 4199 SdHoareTripleChecker+Invalid, 2320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1027 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-21 16:38:49,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3134 Valid, 4199 Invalid, 2320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1027 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-21 16:38:49,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11969 states. [2021-12-21 16:38:49,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11969 to 10941. [2021-12-21 16:38:49,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10941 states, 8134 states have (on average 1.3739857388738628) internal successors, (11176), 8277 states have internal predecessors, (11176), 2195 states have call successors, (2195), 598 states have call predecessors, (2195), 611 states have return successors, (2405), 2169 states have call predecessors, (2405), 2185 states have call successors, (2405) [2021-12-21 16:38:49,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10941 states to 10941 states and 15776 transitions. [2021-12-21 16:38:49,638 INFO L78 Accepts]: Start accepts. Automaton has 10941 states and 15776 transitions. Word has length 227 [2021-12-21 16:38:49,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:38:49,639 INFO L470 AbstractCegarLoop]: Abstraction has 10941 states and 15776 transitions. [2021-12-21 16:38:49,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2021-12-21 16:38:49,639 INFO L276 IsEmpty]: Start isEmpty. Operand 10941 states and 15776 transitions. [2021-12-21 16:38:49,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-21 16:38:49,641 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:38:49,642 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:38:49,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 16:38:49,642 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:38:49,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:38:49,642 INFO L85 PathProgramCache]: Analyzing trace with hash 614643097, now seen corresponding path program 1 times [2021-12-21 16:38:49,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:38:49,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815371584] [2021-12-21 16:38:49,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:38:49,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:38:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:38:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:38:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:38:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:38:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:49,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:38:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:38:49,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-21 16:38:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 16:38:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 16:38:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 16:38:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 16:38:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-21 16:38:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-21 16:38:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 16:38:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-21 16:38:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:49,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:50,002 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-12-21 16:38:50,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:38:50,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815371584] [2021-12-21 16:38:50,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815371584] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:38:50,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:38:50,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:38:50,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003228680] [2021-12-21 16:38:50,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:38:50,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:38:50,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:38:50,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:38:50,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:38:50,004 INFO L87 Difference]: Start difference. First operand 10941 states and 15776 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-21 16:38:54,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:38:54,059 INFO L93 Difference]: Finished difference Result 11958 states and 17655 transitions. [2021-12-21 16:38:54,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:38:54,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 227 [2021-12-21 16:38:54,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:38:54,110 INFO L225 Difference]: With dead ends: 11958 [2021-12-21 16:38:54,111 INFO L226 Difference]: Without dead ends: 11955 [2021-12-21 16:38:54,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:38:54,121 INFO L933 BasicCegarLoop]: 2079 mSDtfsCounter, 2874 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 1802 mSolverCounterSat, 1014 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3084 SdHoareTripleChecker+Valid, 5095 SdHoareTripleChecker+Invalid, 2816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1014 IncrementalHoareTripleChecker+Valid, 1802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-21 16:38:54,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3084 Valid, 5095 Invalid, 2816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1014 Valid, 1802 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-21 16:38:54,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11955 states. [2021-12-21 16:38:54,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11955 to 10940. [2021-12-21 16:38:54,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10940 states, 8134 states have (on average 1.3738627981313007) internal successors, (11175), 8276 states have internal predecessors, (11175), 2194 states have call successors, (2194), 598 states have call predecessors, (2194), 611 states have return successors, (2405), 2169 states have call predecessors, (2405), 2185 states have call successors, (2405) [2021-12-21 16:38:54,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10940 states to 10940 states and 15774 transitions. [2021-12-21 16:38:54,462 INFO L78 Accepts]: Start accepts. Automaton has 10940 states and 15774 transitions. Word has length 227 [2021-12-21 16:38:54,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:38:54,463 INFO L470 AbstractCegarLoop]: Abstraction has 10940 states and 15774 transitions. [2021-12-21 16:38:54,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-21 16:38:54,463 INFO L276 IsEmpty]: Start isEmpty. Operand 10940 states and 15774 transitions. [2021-12-21 16:38:54,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-12-21 16:38:54,465 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:38:54,466 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:38:54,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 16:38:54,466 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:38:54,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:38:54,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1873614496, now seen corresponding path program 1 times [2021-12-21 16:38:54,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:38:54,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090662216] [2021-12-21 16:38:54,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:38:54,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:38:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:38:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:38:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:38:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:38:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:38:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:38:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-21 16:38:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 16:38:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 16:38:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 16:38:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 16:38:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-21 16:38:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-21 16:38:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 16:38:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-21 16:38:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:38:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:38:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:38:54,827 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-12-21 16:38:54,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:38:54,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090662216] [2021-12-21 16:38:54,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090662216] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:38:54,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:38:54,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:38:54,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447174619] [2021-12-21 16:38:54,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:38:54,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:38:54,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:38:54,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:38:54,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:38:54,829 INFO L87 Difference]: Start difference. First operand 10940 states and 15774 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-21 16:39:00,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:39:00,684 INFO L93 Difference]: Finished difference Result 34474 states and 50573 transitions. [2021-12-21 16:39:00,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:39:00,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 228 [2021-12-21 16:39:00,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:39:00,787 INFO L225 Difference]: With dead ends: 34474 [2021-12-21 16:39:00,787 INFO L226 Difference]: Without dead ends: 23580 [2021-12-21 16:39:00,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:39:00,840 INFO L933 BasicCegarLoop]: 2835 mSDtfsCounter, 3694 mSDsluCounter, 4492 mSDsCounter, 0 mSdLazyCounter, 2439 mSolverCounterSat, 1664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3918 SdHoareTripleChecker+Valid, 7327 SdHoareTripleChecker+Invalid, 4103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1664 IncrementalHoareTripleChecker+Valid, 2439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:39:00,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3918 Valid, 7327 Invalid, 4103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1664 Valid, 2439 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-12-21 16:39:00,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23580 states. [2021-12-21 16:39:01,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23580 to 21543. [2021-12-21 16:39:01,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21543 states, 16052 states have (on average 1.3754672314976326) internal successors, (22079), 16331 states have internal predecessors, (22079), 4297 states have call successors, (4297), 1171 states have call predecessors, (4297), 1193 states have return successors, (4719), 4248 states have call predecessors, (4719), 4287 states have call successors, (4719) [2021-12-21 16:39:01,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21543 states to 21543 states and 31095 transitions. [2021-12-21 16:39:01,712 INFO L78 Accepts]: Start accepts. Automaton has 21543 states and 31095 transitions. Word has length 228 [2021-12-21 16:39:01,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:39:01,712 INFO L470 AbstractCegarLoop]: Abstraction has 21543 states and 31095 transitions. [2021-12-21 16:39:01,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-21 16:39:01,713 INFO L276 IsEmpty]: Start isEmpty. Operand 21543 states and 31095 transitions. [2021-12-21 16:39:01,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-12-21 16:39:01,715 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:39:01,716 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:39:01,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 16:39:01,716 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:39:01,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:39:01,716 INFO L85 PathProgramCache]: Analyzing trace with hash -2047940228, now seen corresponding path program 1 times [2021-12-21 16:39:01,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:39:01,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009176590] [2021-12-21 16:39:01,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:39:01,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:39:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:39:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:39:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:39:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:39:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:39:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:39:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:39:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:39:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:39:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:39:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:39:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:39:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-21 16:39:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:39:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:01,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 16:39:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:02,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:02,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 16:39:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:02,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:02,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 16:39:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:02,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:02,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 16:39:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:02,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:02,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-21 16:39:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:02,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:02,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-21 16:39:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:02,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:02,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 16:39:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:02,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:02,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-21 16:39:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:02,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:02,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:39:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:02,086 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-12-21 16:39:02,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:39:02,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009176590] [2021-12-21 16:39:02,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009176590] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:39:02,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:39:02,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:39:02,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306652861] [2021-12-21 16:39:02,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:39:02,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:39:02,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:39:02,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:39:02,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:39:02,089 INFO L87 Difference]: Start difference. First operand 21543 states and 31095 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-21 16:39:05,431 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 [] [2021-12-21 16:39:06,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:39:06,722 INFO L93 Difference]: Finished difference Result 23552 states and 34810 transitions. [2021-12-21 16:39:06,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:39:06,723 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 229 [2021-12-21 16:39:06,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:39:06,836 INFO L225 Difference]: With dead ends: 23552 [2021-12-21 16:39:06,836 INFO L226 Difference]: Without dead ends: 23549 [2021-12-21 16:39:06,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:39:06,858 INFO L933 BasicCegarLoop]: 2070 mSDtfsCounter, 3347 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 1442 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3559 SdHoareTripleChecker+Valid, 3188 SdHoareTripleChecker+Invalid, 2162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1442 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-21 16:39:06,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3559 Valid, 3188 Invalid, 2162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1442 Valid, 719 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-12-21 16:39:06,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23549 states. [2021-12-21 16:39:07,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23549 to 21542. [2021-12-21 16:39:07,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21542 states, 16052 states have (on average 1.375404933964615) internal successors, (22078), 16330 states have internal predecessors, (22078), 4296 states have call successors, (4296), 1171 states have call predecessors, (4296), 1193 states have return successors, (4719), 4248 states have call predecessors, (4719), 4287 states have call successors, (4719) [2021-12-21 16:39:07,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21542 states to 21542 states and 31093 transitions. [2021-12-21 16:39:07,604 INFO L78 Accepts]: Start accepts. Automaton has 21542 states and 31093 transitions. Word has length 229 [2021-12-21 16:39:07,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:39:07,605 INFO L470 AbstractCegarLoop]: Abstraction has 21542 states and 31093 transitions. [2021-12-21 16:39:07,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-21 16:39:07,606 INFO L276 IsEmpty]: Start isEmpty. Operand 21542 states and 31093 transitions. [2021-12-21 16:39:07,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-12-21 16:39:07,607 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:39:07,608 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:39:07,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 16:39:07,609 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:39:07,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:39:07,609 INFO L85 PathProgramCache]: Analyzing trace with hash 937919779, now seen corresponding path program 1 times [2021-12-21 16:39:07,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:39:07,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434733331] [2021-12-21 16:39:07,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:39:07,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:39:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:39:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:39:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:39:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:39:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:39:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:39:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:39:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:39:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:39:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:39:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:39:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:39:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-21 16:39:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:39:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 16:39:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 16:39:07,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 16:39:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-21 16:39:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-21 16:39:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-21 16:39:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 16:39:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-21 16:39:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:39:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:39:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:39:07,957 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-12-21 16:39:07,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:39:07,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434733331] [2021-12-21 16:39:07,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434733331] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:39:07,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:39:07,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:39:07,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329037295] [2021-12-21 16:39:07,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:39:07,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:39:07,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:39:07,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:39:07,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:39:07,960 INFO L87 Difference]: Start difference. First operand 21542 states and 31093 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-21 16:39:10,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:39:10,584 INFO L93 Difference]: Finished difference Result 23551 states and 34808 transitions. [2021-12-21 16:39:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:39:10,585 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 230 [2021-12-21 16:39:10,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:39:10,699 INFO L225 Difference]: With dead ends: 23551 [2021-12-21 16:39:10,700 INFO L226 Difference]: Without dead ends: 23548 [2021-12-21 16:39:10,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:39:10,720 INFO L933 BasicCegarLoop]: 2072 mSDtfsCounter, 3339 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 1439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3548 SdHoareTripleChecker+Valid, 3188 SdHoareTripleChecker+Invalid, 2159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1439 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:39:10,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3548 Valid, 3188 Invalid, 2159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1439 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-21 16:39:10,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23548 states.