./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.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 246ceae3084839b9b339f99ac0b8607f0cf18f3fcdd140edc02c2b8d150b0ed6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:29:30,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:29:30,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:29:30,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:29:30,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:29:30,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:29:30,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:29:30,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:29:30,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:29:30,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:29:30,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:29:30,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:29:30,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:29:30,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:29:30,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:29:30,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:29:30,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:29:30,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:29:30,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:29:30,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:29:30,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:29:30,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:29:30,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:29:30,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:29:30,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:29:30,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:29:30,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:29:30,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:29:30,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:29:30,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:29:30,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:29:30,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:29:30,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:29:30,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:29:30,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:29:30,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:29:30,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:29:30,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:29:30,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:29:30,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:29:30,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:29:30,804 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:29:30,838 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:29:30,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:29:30,839 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:29:30,839 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:29:30,840 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:29:30,840 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:29:30,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:29:30,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:29:30,842 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:29:30,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:29:30,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:29:30,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:29:30,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:29:30,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:29:30,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:29:30,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:29:30,844 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:29:30,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:29:30,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:29:30,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:29:30,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:29:30,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:29:30,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:29:30,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:29:30,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:29:30,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:29:30,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:29:30,846 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:29:30,846 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:29:30,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:29:30,846 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 246ceae3084839b9b339f99ac0b8607f0cf18f3fcdd140edc02c2b8d150b0ed6 [2021-12-28 04:29:31,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:29:31,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:29:31,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:29:31,136 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:29:31,137 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:29:31,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2021-12-28 04:29:31,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/069dcddc9/ae591b740123434985bcb680beda60ef/FLAGdfd4fe491 [2021-12-28 04:29:31,875 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:29:31,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2021-12-28 04:29:31,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/069dcddc9/ae591b740123434985bcb680beda60ef/FLAGdfd4fe491 [2021-12-28 04:29:32,223 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/069dcddc9/ae591b740123434985bcb680beda60ef [2021-12-28 04:29:32,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:29:32,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:29:32,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:29:32,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:29:32,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:29:32,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:29:32" (1/1) ... [2021-12-28 04:29:32,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da07f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:32, skipping insertion in model container [2021-12-28 04:29:32,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:29:32" (1/1) ... [2021-12-28 04:29:32,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:29:32,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:29:33,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i[261928,261941] [2021-12-28 04:29:33,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:29:33,753 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:29:34,024 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i[261928,261941] [2021-12-28 04:29:34,037 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:29:34,147 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:29:34,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:34 WrapperNode [2021-12-28 04:29:34,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:29:34,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:29:34,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:29:34,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:29:34,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:34" (1/1) ... [2021-12-28 04:29:34,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:34" (1/1) ... [2021-12-28 04:29:34,375 INFO L137 Inliner]: procedures = 236, calls = 1587, calls flagged for inlining = 114, calls inlined = 111, statements flattened = 4121 [2021-12-28 04:29:34,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:29:34,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:29:34,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:29:34,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:29:34,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:34" (1/1) ... [2021-12-28 04:29:34,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:34" (1/1) ... [2021-12-28 04:29:34,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:34" (1/1) ... [2021-12-28 04:29:34,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:34" (1/1) ... [2021-12-28 04:29:34,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:34" (1/1) ... [2021-12-28 04:29:34,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:34" (1/1) ... [2021-12-28 04:29:34,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:34" (1/1) ... [2021-12-28 04:29:34,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:29:34,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:29:34,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:29:34,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:29:34,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:34" (1/1) ... [2021-12-28 04:29:34,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:29:34,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:29:34,595 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) [2021-12-28 04:29:34,615 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 [2021-12-28 04:29:34,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2021-12-28 04:29:34,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2021-12-28 04:29:34,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:29:34,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:29:34,642 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-28 04:29:34,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-28 04:29:34,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:29:34,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:29:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:29:34,643 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:29:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-28 04:29:34,643 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-28 04:29:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_set_filter_mode [2021-12-28 04:29:34,643 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_set_filter_mode [2021-12-28 04:29:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-28 04:29:34,643 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-28 04:29:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-28 04:29:34,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-28 04:29:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-28 04:29:34,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-28 04:29:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:29:34,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:29:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_resume [2021-12-28 04:29:34,644 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_resume [2021-12-28 04:29:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:29:34,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:29:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_write_1bit [2021-12-28 04:29:34,645 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_write_1bit [2021-12-28 04:29:34,646 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-28 04:29:34,646 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-28 04:29:34,646 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-28 04:29:34,646 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-28 04:29:34,646 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 04:29:34,646 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 04:29:34,646 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-28 04:29:34,646 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-28 04:29:34,646 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-12-28 04:29:34,647 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-12-28 04:29:34,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:29:34,647 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:29:34,647 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:29:34,647 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:29:34,647 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-28 04:29:34,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-28 04:29:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-28 04:29:34,648 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-28 04:29:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-28 04:29:34,648 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-28 04:29:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-28 04:29:34,648 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-28 04:29:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2021-12-28 04:29:34,649 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2021-12-28 04:29:34,649 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_reuse_skb [2021-12-28 04:29:34,649 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_reuse_skb [2021-12-28 04:29:34,649 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2021-12-28 04:29:34,649 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2021-12-28 04:29:34,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:29:34,650 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-28 04:29:34,650 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-28 04:29:34,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:29:34,651 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-28 04:29:34,652 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-28 04:29:34,652 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-28 04:29:34,652 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-28 04:29:34,652 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-28 04:29:34,652 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-28 04:29:34,652 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-28 04:29:34,652 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-28 04:29:34,652 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-28 04:29:34,653 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-28 04:29:34,653 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:29:34,653 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:29:34,653 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-12-28 04:29:34,653 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-12-28 04:29:34,653 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_read_1bit [2021-12-28 04:29:34,653 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_read_1bit [2021-12-28 04:29:34,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:29:34,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:29:34,654 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_init_dm910x [2021-12-28 04:29:34,654 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_init_dm910x [2021-12-28 04:29:34,654 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-28 04:29:34,654 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-28 04:29:34,654 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-28 04:29:34,654 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-28 04:29:34,654 INFO L130 BoogieDeclarations]: Found specification of procedure poll_dmfe [2021-12-28 04:29:34,654 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_dmfe [2021-12-28 04:29:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_write [2021-12-28 04:29:34,655 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_write [2021-12-28 04:29:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-28 04:29:34,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-28 04:29:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2021-12-28 04:29:34,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2021-12-28 04:29:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:29:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 04:29:34,656 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 04:29:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-12-28 04:29:34,657 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-12-28 04:29:34,657 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-12-28 04:29:34,657 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-12-28 04:29:34,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:29:34,657 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_remove_one [2021-12-28 04:29:34,658 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_remove_one [2021-12-28 04:29:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:29:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure dm9132_id_table [2021-12-28 04:29:34,658 INFO L138 BoogieDeclarations]: Found implementation of procedure dm9132_id_table [2021-12-28 04:29:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-28 04:29:34,658 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-28 04:29:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 04:29:34,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 04:29:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-28 04:29:34,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-28 04:29:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_interrupt [2021-12-28 04:29:34,659 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_interrupt [2021-12-28 04:29:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-28 04:29:34,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-28 04:29:34,660 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2021-12-28 04:29:34,660 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2021-12-28 04:29:34,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:29:34,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:29:34,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:29:34,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-28 04:29:34,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-28 04:29:34,663 INFO L130 BoogieDeclarations]: Found specification of procedure cal_CRC [2021-12-28 04:29:34,663 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_CRC [2021-12-28 04:29:34,663 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2021-12-28 04:29:34,664 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2021-12-28 04:29:34,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:29:34,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-28 04:29:34,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-28 04:29:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:29:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2021-12-28 04:29:34,669 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2021-12-28 04:29:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-12-28 04:29:34,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-12-28 04:29:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-28 04:29:34,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-28 04:29:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:29:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-12-28 04:29:34,669 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-12-28 04:29:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-28 04:29:34,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-28 04:29:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-12-28 04:29:34,670 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-12-28 04:29:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2021-12-28 04:29:34,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2021-12-28 04:29:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_read [2021-12-28 04:29:34,670 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_read [2021-12-28 04:29:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-12-28 04:29:34,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-12-28 04:29:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_free_rxbuffer [2021-12-28 04:29:34,671 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_free_rxbuffer [2021-12-28 04:29:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-28 04:29:34,671 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-28 04:29:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-28 04:29:34,671 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-28 04:29:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-28 04:29:34,672 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-28 04:29:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:29:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:29:34,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:29:35,316 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:29:35,320 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:29:35,608 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:29:37,497 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:29:37,509 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:29:37,509 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:29:37,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:29:37 BoogieIcfgContainer [2021-12-28 04:29:37,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:29:37,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:29:37,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:29:37,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:29:37,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:29:32" (1/3) ... [2021-12-28 04:29:37,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccac8fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:29:37, skipping insertion in model container [2021-12-28 04:29:37,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:34" (2/3) ... [2021-12-28 04:29:37,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccac8fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:29:37, skipping insertion in model container [2021-12-28 04:29:37,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:29:37" (3/3) ... [2021-12-28 04:29:37,518 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2021-12-28 04:29:37,522 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:29:37,522 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:29:37,558 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:29:37,563 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 [2021-12-28 04:29:37,564 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:29:37,592 INFO L276 IsEmpty]: Start isEmpty. Operand has 1426 states, 1023 states have (on average 1.370478983382209) internal successors, (1402), 1046 states have internal predecessors, (1402), 330 states have call successors, (330), 72 states have call predecessors, (330), 71 states have return successors, (323), 317 states have call predecessors, (323), 323 states have call successors, (323) [2021-12-28 04:29:37,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-28 04:29:37,615 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:29:37,616 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:29:37,617 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:29:37,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:29:37,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1713782391, now seen corresponding path program 1 times [2021-12-28 04:29:37,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:29:37,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893029648] [2021-12-28 04:29:37,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:29:37,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:29:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:29:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:29:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:29:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:29:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 04:29:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:29:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 04:29:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 04:29:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 04:29:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:29:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-28 04:29:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:29:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:38,388 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-28 04:29:38,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:29:38,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893029648] [2021-12-28 04:29:38,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893029648] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:29:38,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:29:38,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:29:38,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209239454] [2021-12-28 04:29:38,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:29:38,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:29:38,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:29:38,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:29:38,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:29:38,415 INFO L87 Difference]: Start difference. First operand has 1426 states, 1023 states have (on average 1.370478983382209) internal successors, (1402), 1046 states have internal predecessors, (1402), 330 states have call successors, (330), 72 states have call predecessors, (330), 71 states have return successors, (323), 317 states have call predecessors, (323), 323 states have call successors, (323) Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-28 04:29:42,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:29:42,110 INFO L93 Difference]: Finished difference Result 2888 states and 4208 transitions. [2021-12-28 04:29:42,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 04:29:42,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 148 [2021-12-28 04:29:42,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:29:42,129 INFO L225 Difference]: With dead ends: 2888 [2021-12-28 04:29:42,129 INFO L226 Difference]: Without dead ends: 1445 [2021-12-28 04:29:42,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:29:42,140 INFO L933 BasicCegarLoop]: 1872 mSDtfsCounter, 1174 mSDsluCounter, 2882 mSDsCounter, 0 mSdLazyCounter, 2458 mSolverCounterSat, 1237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 4754 SdHoareTripleChecker+Invalid, 3695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1237 IncrementalHoareTripleChecker+Valid, 2458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-28 04:29:42,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1228 Valid, 4754 Invalid, 3695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1237 Valid, 2458 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-28 04:29:42,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2021-12-28 04:29:42,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1404. [2021-12-28 04:29:42,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1010 states have (on average 1.3613861386138615) internal successors, (1375), 1024 states have internal predecessors, (1375), 323 states have call successors, (323), 71 states have call predecessors, (323), 70 states have return successors, (322), 316 states have call predecessors, (322), 322 states have call successors, (322) [2021-12-28 04:29:42,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 2020 transitions. [2021-12-28 04:29:42,259 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 2020 transitions. Word has length 148 [2021-12-28 04:29:42,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:29:42,260 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 2020 transitions. [2021-12-28 04:29:42,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-28 04:29:42,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 2020 transitions. [2021-12-28 04:29:42,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-28 04:29:42,272 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:29:42,273 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:29:42,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:29:42,273 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:29:42,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:29:42,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1808379503, now seen corresponding path program 1 times [2021-12-28 04:29:42,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:29:42,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215907975] [2021-12-28 04:29:42,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:29:42,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:29:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:29:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:42,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:29:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:29:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:29:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 04:29:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:29:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 04:29:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 04:29:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 04:29:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:29:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-28 04:29:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:29:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:42,754 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-28 04:29:42,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:29:42,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215907975] [2021-12-28 04:29:42,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215907975] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:29:42,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:29:42,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:29:42,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327823192] [2021-12-28 04:29:42,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:29:42,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:29:42,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:29:42,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:29:42,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:29:42,758 INFO L87 Difference]: Start difference. First operand 1404 states and 2020 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-28 04:29:49,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:29:49,994 INFO L93 Difference]: Finished difference Result 4258 states and 6144 transitions. [2021-12-28 04:29:49,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 04:29:49,994 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 148 [2021-12-28 04:29:49,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:29:50,010 INFO L225 Difference]: With dead ends: 4258 [2021-12-28 04:29:50,011 INFO L226 Difference]: Without dead ends: 2874 [2021-12-28 04:29:50,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2021-12-28 04:29:50,019 INFO L933 BasicCegarLoop]: 2054 mSDtfsCounter, 3887 mSDsluCounter, 6067 mSDsCounter, 0 mSdLazyCounter, 7105 mSolverCounterSat, 2741 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4134 SdHoareTripleChecker+Valid, 8121 SdHoareTripleChecker+Invalid, 9846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2741 IncrementalHoareTripleChecker+Valid, 7105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-12-28 04:29:50,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4134 Valid, 8121 Invalid, 9846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2741 Valid, 7105 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2021-12-28 04:29:50,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2021-12-28 04:29:50,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2782. [2021-12-28 04:29:50,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2003 states have (on average 1.361957064403395) internal successors, (2728), 2035 states have internal predecessors, (2728), 638 states have call successors, (638), 141 states have call predecessors, (638), 140 states have return successors, (637), 621 states have call predecessors, (637), 637 states have call successors, (637) [2021-12-28 04:29:50,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 4003 transitions. [2021-12-28 04:29:50,102 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 4003 transitions. Word has length 148 [2021-12-28 04:29:50,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:29:50,103 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 4003 transitions. [2021-12-28 04:29:50,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-28 04:29:50,103 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 4003 transitions. [2021-12-28 04:29:50,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-28 04:29:50,108 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:29:50,108 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:29:50,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:29:50,109 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:29:50,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:29:50,109 INFO L85 PathProgramCache]: Analyzing trace with hash -118361159, now seen corresponding path program 1 times [2021-12-28 04:29:50,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:29:50,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50399628] [2021-12-28 04:29:50,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:29:50,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:29:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:29:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:29:50,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:29:50,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:29:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 04:29:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:29:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:29:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:29:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:29:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 04:29:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-28 04:29:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 04:29:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-28 04:29:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:50,383 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-28 04:29:50,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:29:50,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50399628] [2021-12-28 04:29:50,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50399628] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:29:50,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:29:50,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:29:50,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150900169] [2021-12-28 04:29:50,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:29:50,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:29:50,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:29:50,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:29:50,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:29:50,387 INFO L87 Difference]: Start difference. First operand 2782 states and 4003 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:29:55,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:29:55,206 INFO L93 Difference]: Finished difference Result 8027 states and 11557 transitions. [2021-12-28 04:29:55,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 04:29:55,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 161 [2021-12-28 04:29:55,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:29:55,231 INFO L225 Difference]: With dead ends: 8027 [2021-12-28 04:29:55,232 INFO L226 Difference]: Without dead ends: 5265 [2021-12-28 04:29:55,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-28 04:29:55,248 INFO L933 BasicCegarLoop]: 2021 mSDtfsCounter, 3520 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 3499 mSolverCounterSat, 2558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3726 SdHoareTripleChecker+Valid, 5166 SdHoareTripleChecker+Invalid, 6057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2558 IncrementalHoareTripleChecker+Valid, 3499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-28 04:29:55,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3726 Valid, 5166 Invalid, 6057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2558 Valid, 3499 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-28 04:29:55,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5265 states. [2021-12-28 04:29:55,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5265 to 5097. [2021-12-28 04:29:55,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 3675 states have (on average 1.3610884353741497) internal successors, (5002), 3731 states have internal predecessors, (5002), 1156 states have call successors, (1156), 266 states have call predecessors, (1156), 265 states have return successors, (1163), 1127 states have call predecessors, (1163), 1155 states have call successors, (1163) [2021-12-28 04:29:55,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 7321 transitions. [2021-12-28 04:29:55,447 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 7321 transitions. Word has length 161 [2021-12-28 04:29:55,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:29:55,448 INFO L470 AbstractCegarLoop]: Abstraction has 5097 states and 7321 transitions. [2021-12-28 04:29:55,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:29:55,448 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 7321 transitions. [2021-12-28 04:29:55,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-28 04:29:55,452 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:29:55,452 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:29:55,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:29:55,453 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:29:55,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:29:55,453 INFO L85 PathProgramCache]: Analyzing trace with hash -650661693, now seen corresponding path program 1 times [2021-12-28 04:29:55,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:29:55,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425984699] [2021-12-28 04:29:55,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:29:55,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:29:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:29:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:29:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:29:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:29:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 04:29:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:29:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:29:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-28 04:29:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-28 04:29:55,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 04:29:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-28 04:29:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 04:29:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:55,750 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-28 04:29:55,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:29:55,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425984699] [2021-12-28 04:29:55,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425984699] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:29:55,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:29:55,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:29:55,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075518404] [2021-12-28 04:29:55,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:29:55,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:29:55,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:29:55,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:29:55,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:29:55,754 INFO L87 Difference]: Start difference. First operand 5097 states and 7321 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-28 04:30:01,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:30:01,388 INFO L93 Difference]: Finished difference Result 15600 states and 22448 transitions. [2021-12-28 04:30:01,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 04:30:01,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 149 [2021-12-28 04:30:01,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:30:01,437 INFO L225 Difference]: With dead ends: 15600 [2021-12-28 04:30:01,437 INFO L226 Difference]: Without dead ends: 10523 [2021-12-28 04:30:01,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2021-12-28 04:30:01,460 INFO L933 BasicCegarLoop]: 2029 mSDtfsCounter, 3899 mSDsluCounter, 5348 mSDsCounter, 0 mSdLazyCounter, 6101 mSolverCounterSat, 2748 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4147 SdHoareTripleChecker+Valid, 7377 SdHoareTripleChecker+Invalid, 8849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2748 IncrementalHoareTripleChecker+Valid, 6101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:30:01,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4147 Valid, 7377 Invalid, 8849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2748 Valid, 6101 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-12-28 04:30:01,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10523 states. [2021-12-28 04:30:01,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10523 to 10177. [2021-12-28 04:30:01,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10177 states, 7343 states have (on average 1.3607517363475419) internal successors, (9992), 7453 states have internal predecessors, (9992), 2302 states have call successors, (2302), 532 states have call predecessors, (2302), 531 states have return successors, (2317), 2247 states have call predecessors, (2317), 2301 states have call successors, (2317) [2021-12-28 04:30:01,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10177 states to 10177 states and 14611 transitions. [2021-12-28 04:30:01,880 INFO L78 Accepts]: Start accepts. Automaton has 10177 states and 14611 transitions. Word has length 149 [2021-12-28 04:30:01,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:30:01,880 INFO L470 AbstractCegarLoop]: Abstraction has 10177 states and 14611 transitions. [2021-12-28 04:30:01,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-28 04:30:01,881 INFO L276 IsEmpty]: Start isEmpty. Operand 10177 states and 14611 transitions. [2021-12-28 04:30:01,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-28 04:30:01,885 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:30:01,885 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:30:01,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 04:30:01,885 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:30:01,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:30:01,886 INFO L85 PathProgramCache]: Analyzing trace with hash 926867284, now seen corresponding path program 1 times [2021-12-28 04:30:01,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:30:01,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572735312] [2021-12-28 04:30:01,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:30:01,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:30:01,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:30:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:30:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:30:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:30:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 04:30:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:30:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 04:30:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 04:30:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:30:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-28 04:30:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 04:30:02,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-28 04:30:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:02,140 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-28 04:30:02,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:30:02,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572735312] [2021-12-28 04:30:02,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572735312] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:30:02,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:30:02,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:30:02,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095951215] [2021-12-28 04:30:02,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:30:02,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:30:02,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:30:02,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:30:02,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:30:02,143 INFO L87 Difference]: Start difference. First operand 10177 states and 14611 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-28 04:30:08,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:30:08,588 INFO L93 Difference]: Finished difference Result 31189 states and 44840 transitions. [2021-12-28 04:30:08,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 04:30:08,589 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 150 [2021-12-28 04:30:08,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:30:08,669 INFO L225 Difference]: With dead ends: 31189 [2021-12-28 04:30:08,669 INFO L226 Difference]: Without dead ends: 21032 [2021-12-28 04:30:08,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2021-12-28 04:30:08,712 INFO L933 BasicCegarLoop]: 2022 mSDtfsCounter, 3906 mSDsluCounter, 5995 mSDsCounter, 0 mSdLazyCounter, 7010 mSolverCounterSat, 2754 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4153 SdHoareTripleChecker+Valid, 8017 SdHoareTripleChecker+Invalid, 9764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2754 IncrementalHoareTripleChecker+Valid, 7010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-12-28 04:30:08,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4153 Valid, 8017 Invalid, 9764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2754 Valid, 7010 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-12-28 04:30:08,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21032 states. [2021-12-28 04:30:09,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21032 to 20346. [2021-12-28 04:30:09,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20346 states, 14688 states have (on average 1.3602941176470589) internal successors, (19980), 14904 states have internal predecessors, (19980), 4592 states have call successors, (4592), 1066 states have call predecessors, (4592), 1065 states have return successors, (4623), 4487 states have call predecessors, (4623), 4591 states have call successors, (4623) [2021-12-28 04:30:09,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20346 states to 20346 states and 29195 transitions. [2021-12-28 04:30:09,385 INFO L78 Accepts]: Start accepts. Automaton has 20346 states and 29195 transitions. Word has length 150 [2021-12-28 04:30:09,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:30:09,386 INFO L470 AbstractCegarLoop]: Abstraction has 20346 states and 29195 transitions. [2021-12-28 04:30:09,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-28 04:30:09,386 INFO L276 IsEmpty]: Start isEmpty. Operand 20346 states and 29195 transitions. [2021-12-28 04:30:09,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-28 04:30:09,390 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:30:09,390 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:30:09,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 04:30:09,390 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:30:09,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:30:09,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1661326746, now seen corresponding path program 1 times [2021-12-28 04:30:09,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:30:09,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522374587] [2021-12-28 04:30:09,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:30:09,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:30:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:30:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:30:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:09,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:30:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:30:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 04:30:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:30:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 04:30:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 04:30:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:30:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 04:30:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-28 04:30:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-28 04:30:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:09,619 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-28 04:30:09,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:30:09,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522374587] [2021-12-28 04:30:09,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522374587] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:30:09,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:30:09,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:30:09,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647901346] [2021-12-28 04:30:09,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:30:09,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:30:09,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:30:09,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:30:09,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:30:09,623 INFO L87 Difference]: Start difference. First operand 20346 states and 29195 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-28 04:30:16,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:30:16,251 INFO L93 Difference]: Finished difference Result 62216 states and 89366 transitions. [2021-12-28 04:30:16,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 04:30:16,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 151 [2021-12-28 04:30:16,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:30:16,397 INFO L225 Difference]: With dead ends: 62216 [2021-12-28 04:30:16,398 INFO L226 Difference]: Without dead ends: 41890 [2021-12-28 04:30:16,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2021-12-28 04:30:16,594 INFO L933 BasicCegarLoop]: 2023 mSDtfsCounter, 3907 mSDsluCounter, 5995 mSDsCounter, 0 mSdLazyCounter, 7018 mSolverCounterSat, 2756 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4152 SdHoareTripleChecker+Valid, 8018 SdHoareTripleChecker+Invalid, 9774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2756 IncrementalHoareTripleChecker+Valid, 7018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-28 04:30:16,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4152 Valid, 8018 Invalid, 9774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2756 Valid, 7018 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-12-28 04:30:16,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41890 states. [2021-12-28 04:30:17,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41890 to 40541. [2021-12-28 04:30:17,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40541 states, 29271 states have (on average 1.359605069864371) internal successors, (39797), 29693 states have internal predecessors, (39797), 9138 states have call successors, (9138), 2132 states have call predecessors, (9138), 2131 states have return successors, (9201), 8937 states have call predecessors, (9201), 9137 states have call successors, (9201) [2021-12-28 04:30:18,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40541 states to 40541 states and 58136 transitions. [2021-12-28 04:30:18,233 INFO L78 Accepts]: Start accepts. Automaton has 40541 states and 58136 transitions. Word has length 151 [2021-12-28 04:30:18,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:30:18,233 INFO L470 AbstractCegarLoop]: Abstraction has 40541 states and 58136 transitions. [2021-12-28 04:30:18,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-28 04:30:18,234 INFO L276 IsEmpty]: Start isEmpty. Operand 40541 states and 58136 transitions. [2021-12-28 04:30:18,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-28 04:30:18,237 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:30:18,238 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:30:18,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 04:30:18,238 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:30:18,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:30:18,238 INFO L85 PathProgramCache]: Analyzing trace with hash -160540101, now seen corresponding path program 1 times [2021-12-28 04:30:18,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:30:18,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954948030] [2021-12-28 04:30:18,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:30:18,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:30:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:30:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:30:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:30:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:30:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 04:30:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:30:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:30:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:30:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:30:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 04:30:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-28 04:30:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 04:30:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-28 04:30:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:18,528 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-28 04:30:18,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:30:18,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954948030] [2021-12-28 04:30:18,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954948030] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 04:30:18,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164290086] [2021-12-28 04:30:18,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:30:18,529 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 04:30:18,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:30:18,531 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 04:30:18,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 04:30:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:19,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 2325 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 04:30:19,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 04:30:19,397 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-28 04:30:19,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 04:30:19,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164290086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:30:19,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 04:30:19,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 13 [2021-12-28 04:30:19,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445758441] [2021-12-28 04:30:19,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:30:19,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 04:30:19,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:30:19,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 04:30:19,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-12-28 04:30:19,401 INFO L87 Difference]: Start difference. First operand 40541 states and 58136 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:30:21,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:30:21,434 INFO L93 Difference]: Finished difference Result 121583 states and 176582 transitions. [2021-12-28 04:30:21,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 04:30:21,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 161 [2021-12-28 04:30:21,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:30:21,803 INFO L225 Difference]: With dead ends: 121583 [2021-12-28 04:30:21,803 INFO L226 Difference]: Without dead ends: 81062 [2021-12-28 04:30:21,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-12-28 04:30:21,962 INFO L933 BasicCegarLoop]: 2382 mSDtfsCounter, 1958 mSDsluCounter, 1939 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1958 SdHoareTripleChecker+Valid, 4321 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:30:21,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1958 Valid, 4321 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 04:30:22,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81062 states. [2021-12-28 04:30:24,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81062 to 81059. [2021-12-28 04:30:24,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81059 states, 58529 states have (on average 1.3469049531001727) internal successors, (78833), 59373 states have internal predecessors, (78833), 18268 states have call successors, (18268), 4262 states have call predecessors, (18268), 4261 states have return successors, (19221), 17867 states have call predecessors, (19221), 18267 states have call successors, (19221) [2021-12-28 04:30:24,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81059 states to 81059 states and 116322 transitions. [2021-12-28 04:30:24,900 INFO L78 Accepts]: Start accepts. Automaton has 81059 states and 116322 transitions. Word has length 161 [2021-12-28 04:30:24,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:30:24,901 INFO L470 AbstractCegarLoop]: Abstraction has 81059 states and 116322 transitions. [2021-12-28 04:30:24,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:30:24,901 INFO L276 IsEmpty]: Start isEmpty. Operand 81059 states and 116322 transitions. [2021-12-28 04:30:24,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-28 04:30:24,905 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:30:24,905 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:30:24,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-28 04:30:25,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 04:30:25,119 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:30:25,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:30:25,120 INFO L85 PathProgramCache]: Analyzing trace with hash 87606393, now seen corresponding path program 1 times [2021-12-28 04:30:25,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:30:25,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412495622] [2021-12-28 04:30:25,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:30:25,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:30:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:30:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:30:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:30:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:25,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:30:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 04:30:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:30:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:30:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:30:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:30:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 04:30:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-28 04:30:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 04:30:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-28 04:30:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,667 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-28 04:30:25,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:30:25,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412495622] [2021-12-28 04:30:25,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412495622] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 04:30:25,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662778460] [2021-12-28 04:30:25,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:30:25,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 04:30:25,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:30:25,680 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 04:30:25,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 04:30:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:26,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 2326 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-28 04:30:26,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 04:30:26,521 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-28 04:30:26,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 04:30:26,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662778460] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:30:26,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 04:30:26,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2021-12-28 04:30:26,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536590285] [2021-12-28 04:30:26,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:30:26,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:30:26,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:30:26,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:30:26,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-12-28 04:30:26,523 INFO L87 Difference]: Start difference. First operand 81059 states and 116322 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16)