./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--sis--sis900.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--sis--sis900.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 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:31:11,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:31:11,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:31:11,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:31:11,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:31:11,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:31:11,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:31:11,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:31:11,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:31:11,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:31:11,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:31:11,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:31:11,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:31:11,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:31:11,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:31:11,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:31:11,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:31:11,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:31:11,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:31:11,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:31:11,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:31:11,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:31:11,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:31:11,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:31:11,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:31:11,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:31:11,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:31:11,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:31:11,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:31:11,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:31:11,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:31:11,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:31:11,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:31:11,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:31:11,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:31:11,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:31:11,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:31:11,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:31:11,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:31:11,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:31:11,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:31:11,840 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:31:11,879 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:31:11,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:31:11,880 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:31:11,880 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:31:11,881 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:31:11,882 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:31:11,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:31:11,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:31:11,883 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:31:11,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:31:11,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:31:11,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:31:11,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:31:11,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:31:11,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:31:11,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:31:11,885 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:31:11,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:31:11,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:31:11,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:31:11,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:31:11,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:31:11,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:31:11,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:31:11,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:31:11,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:31:11,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:31:11,897 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:31:11,897 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:31:11,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:31:11,897 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 [2021-12-28 04:31:12,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:31:12,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:31:12,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:31:12,222 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:31:12,223 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:31:12,224 INFO L432 ainManager$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--sis--sis900.ko-entry_point.cil.out.i [2021-12-28 04:31:12,281 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11d85ef27/535ef80b1471438ea23c8acd60191d8c/FLAG175a6c410 [2021-12-28 04:31:13,056 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:31:13,057 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--sis--sis900.ko-entry_point.cil.out.i [2021-12-28 04:31:13,106 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11d85ef27/535ef80b1471438ea23c8acd60191d8c/FLAG175a6c410 [2021-12-28 04:31:13,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11d85ef27/535ef80b1471438ea23c8acd60191d8c [2021-12-28 04:31:13,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:31:13,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:31:13,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:31:13,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:31:13,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:31:13,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:31:13" (1/1) ... [2021-12-28 04:31:13,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5989870e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:13, skipping insertion in model container [2021-12-28 04:31:13,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:31:13" (1/1) ... [2021-12-28 04:31:13,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:31:13,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:31:15,557 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--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2021-12-28 04:31:15,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:31:15,633 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:31:16,004 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--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2021-12-28 04:31:16,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:31:16,283 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:31:16,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:16 WrapperNode [2021-12-28 04:31:16,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:31:16,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:31:16,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:31:16,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:31:16,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:16" (1/1) ... [2021-12-28 04:31:16,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:16" (1/1) ... [2021-12-28 04:31:16,582 INFO L137 Inliner]: procedures = 274, calls = 1587, calls flagged for inlining = 149, calls inlined = 146, statements flattened = 4283 [2021-12-28 04:31:16,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:31:16,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:31:16,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:31:16,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:31:16,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:16" (1/1) ... [2021-12-28 04:31:16,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:16" (1/1) ... [2021-12-28 04:31:16,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:16" (1/1) ... [2021-12-28 04:31:16,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:16" (1/1) ... [2021-12-28 04:31:16,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:16" (1/1) ... [2021-12-28 04:31:16,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:16" (1/1) ... [2021-12-28 04:31:16,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:16" (1/1) ... [2021-12-28 04:31:16,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:31:16,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:31:16,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:31:16,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:31:16,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:16" (1/1) ... [2021-12-28 04:31:16,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:31:16,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:31:16,925 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 04:31:17,003 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 04:31:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2021-12-28 04:31:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2021-12-28 04:31:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-12-28 04:31:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-12-28 04:31:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2021-12-28 04:31:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2021-12-28 04:31:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-28 04:31:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-28 04:31:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:31:17,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:31:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:31:17,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:31:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-28 04:31:17,019 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-28 04:31:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-28 04:31:17,019 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-28 04:31:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-28 04:31:17,020 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-28 04:31:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-28 04:31:17,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-28 04:31:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:31:17,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:31:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2021-12-28 04:31:17,021 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2021-12-28 04:31:17,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:31:17,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:31:17,021 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-28 04:31:17,021 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-28 04:31:17,021 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-28 04:31:17,021 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-28 04:31:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 04:31:17,022 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 04:31:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-28 04:31:17,022 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-28 04:31:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2021-12-28 04:31:17,022 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2021-12-28 04:31:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-28 04:31:17,023 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-28 04:31:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:31:17,023 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:31:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-28 04:31:17,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-28 04:31:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-28 04:31:17,024 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-28 04:31:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-28 04:31:17,024 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-28 04:31:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-28 04:31:17,025 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-28 04:31:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2021-12-28 04:31:17,025 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2021-12-28 04:31:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-28 04:31:17,025 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-28 04:31:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2021-12-28 04:31:17,025 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2021-12-28 04:31:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-28 04:31:17,026 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-28 04:31:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:31:17,027 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-28 04:31:17,027 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-28 04:31:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-28 04:31:17,028 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-28 04:31:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:31:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-28 04:31:17,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-28 04:31:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-28 04:31:17,029 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-28 04:31:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-28 04:31:17,029 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-28 04:31:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-28 04:31:17,030 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-28 04:31:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-28 04:31:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-28 04:31:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-28 04:31:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-28 04:31:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2021-12-28 04:31:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2021-12-28 04:31:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2021-12-28 04:31:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2021-12-28 04:31:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:31:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:31:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2021-12-28 04:31:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2021-12-28 04:31:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2021-12-28 04:31:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2021-12-28 04:31:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-28 04:31:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-28 04:31:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:31:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:31:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-28 04:31:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-28 04:31:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-28 04:31:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-28 04:31:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-28 04:31:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-28 04:31:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2021-12-28 04:31:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2021-12-28 04:31:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-28 04:31:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-28 04:31:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2021-12-28 04:31:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2021-12-28 04:31:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-28 04:31:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-28 04:31:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 04:31:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 04:31:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-12-28 04:31:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-12-28 04:31:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2021-12-28 04:31:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2021-12-28 04:31:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:31:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2021-12-28 04:31:17,038 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2021-12-28 04:31:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-28 04:31:17,038 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-28 04:31:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-28 04:31:17,039 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-28 04:31:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 04:31:17,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 04:31:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-12-28 04:31:17,039 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-12-28 04:31:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-28 04:31:17,042 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-28 04:31:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-28 04:31:17,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-28 04:31:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 04:31:17,043 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 04:31:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2021-12-28 04:31:17,044 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2021-12-28 04:31:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-28 04:31:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-28 04:31:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:31:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2021-12-28 04:31:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2021-12-28 04:31:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-28 04:31:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-28 04:31:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2021-12-28 04:31:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2021-12-28 04:31:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:31:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:31:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2021-12-28 04:31:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2021-12-28 04:31:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-28 04:31:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-28 04:31:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_config [2021-12-28 04:31:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_config [2021-12-28 04:31:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:31:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-12-28 04:31:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-12-28 04:31:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-28 04:31:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-28 04:31:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2021-12-28 04:31:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2021-12-28 04:31:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:31:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2021-12-28 04:31:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2021-12-28 04:31:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:31:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-12-28 04:31:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-12-28 04:31:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-28 04:31:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-28 04:31:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-12-28 04:31:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-12-28 04:31:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-28 04:31:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-28 04:31:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2021-12-28 04:31:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2021-12-28 04:31:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2021-12-28 04:31:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2021-12-28 04:31:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-28 04:31:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-28 04:31:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ioctl [2021-12-28 04:31:17,055 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ioctl [2021-12-28 04:31:17,055 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-28 04:31:17,055 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-28 04:31:17,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:31:17,055 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-28 04:31:17,055 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-28 04:31:17,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:31:17,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:31:17,850 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:31:17,853 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:31:18,032 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:31:20,343 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:31:20,359 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:31:20,360 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 04:31:20,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:31:20 BoogieIcfgContainer [2021-12-28 04:31:20,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:31:20,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:31:20,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:31:20,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:31:20,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:31:13" (1/3) ... [2021-12-28 04:31:20,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f67ee49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:31:20, skipping insertion in model container [2021-12-28 04:31:20,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:16" (2/3) ... [2021-12-28 04:31:20,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f67ee49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:31:20, skipping insertion in model container [2021-12-28 04:31:20,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:31:20" (3/3) ... [2021-12-28 04:31:20,370 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-12-28 04:31:20,375 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:31:20,375 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:31:20,420 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:31:20,426 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 04:31:20,427 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:31:20,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 1706 states, 1176 states have (on average 1.3265306122448979) internal successors, (1560), 1200 states have internal predecessors, (1560), 446 states have call successors, (446), 83 states have call predecessors, (446), 82 states have return successors, (439), 435 states have call predecessors, (439), 439 states have call successors, (439) [2021-12-28 04:31:20,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-28 04:31:20,498 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:31:20,499 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2021-12-28 04:31:20,500 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:31:20,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:31:20,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1411471056, now seen corresponding path program 1 times [2021-12-28 04:31:20,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:31:20,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667305319] [2021-12-28 04:31:20,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:31:20,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:31:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:31:21,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:21,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:31:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:31:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:31:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:31:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:21,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:31:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:31:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:31:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:31:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:31:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-28 04:31:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-28 04:31:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-28 04:31:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-28 04:31:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:21,541 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-12-28 04:31:21,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:31:21,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667305319] [2021-12-28 04:31:21,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667305319] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:31:21,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:31:21,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:31:21,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997908939] [2021-12-28 04:31:21,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:31:21,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:31:21,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:31:21,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:31:21,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:31:21,584 INFO L87 Difference]: Start difference. First operand has 1706 states, 1176 states have (on average 1.3265306122448979) internal successors, (1560), 1200 states have internal predecessors, (1560), 446 states have call successors, (446), 83 states have call predecessors, (446), 82 states have return successors, (439), 435 states have call predecessors, (439), 439 states have call successors, (439) Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (21), 6 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 04:31:26,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:31:26,125 INFO L93 Difference]: Finished difference Result 3618 states and 5281 transitions. [2021-12-28 04:31:26,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:31:26,128 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (21), 6 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 178 [2021-12-28 04:31:26,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:31:26,154 INFO L225 Difference]: With dead ends: 3618 [2021-12-28 04:31:26,154 INFO L226 Difference]: Without dead ends: 1897 [2021-12-28 04:31:26,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 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 04:31:26,172 INFO L933 BasicCegarLoop]: 2149 mSDtfsCounter, 1890 mSDsluCounter, 3221 mSDsCounter, 0 mSdLazyCounter, 2611 mSolverCounterSat, 1888 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1957 SdHoareTripleChecker+Valid, 5370 SdHoareTripleChecker+Invalid, 4499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1888 IncrementalHoareTripleChecker+Valid, 2611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-28 04:31:26,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1957 Valid, 5370 Invalid, 4499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1888 Valid, 2611 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-12-28 04:31:26,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2021-12-28 04:31:26,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1686. [2021-12-28 04:31:26,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1165 states have (on average 1.3167381974248926) internal successors, (1534), 1180 states have internal predecessors, (1534), 439 states have call successors, (439), 82 states have call predecessors, (439), 81 states have return successors, (438), 434 states have call predecessors, (438), 438 states have call successors, (438) [2021-12-28 04:31:26,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 2411 transitions. [2021-12-28 04:31:26,337 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 2411 transitions. Word has length 178 [2021-12-28 04:31:26,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:31:26,337 INFO L470 AbstractCegarLoop]: Abstraction has 1686 states and 2411 transitions. [2021-12-28 04:31:26,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (21), 6 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 04:31:26,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 2411 transitions. [2021-12-28 04:31:26,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-28 04:31:26,346 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:31:26,347 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2021-12-28 04:31:26,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:31:26,347 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:31:26,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:31:26,348 INFO L85 PathProgramCache]: Analyzing trace with hash 419462204, now seen corresponding path program 1 times [2021-12-28 04:31:26,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:31:26,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925527736] [2021-12-28 04:31:26,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:31:26,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:31:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:31:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:31:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:31:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:31:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:31:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:26,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:31:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:31:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:31:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:31:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:31:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-28 04:31:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-28 04:31:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-28 04:31:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-28 04:31:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:26,930 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-12-28 04:31:26,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:31:26,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925527736] [2021-12-28 04:31:26,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925527736] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:31:26,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:31:26,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:31:26,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196085729] [2021-12-28 04:31:26,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:31:26,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:31:26,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:31:26,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:31:26,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:31:26,934 INFO L87 Difference]: Start difference. First operand 1686 states and 2411 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, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 04:31:35,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:31:35,435 INFO L93 Difference]: Finished difference Result 5427 states and 7844 transitions. [2021-12-28 04:31:35,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 04:31:35,436 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, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 178 [2021-12-28 04:31:35,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:31:35,464 INFO L225 Difference]: With dead ends: 5427 [2021-12-28 04:31:35,464 INFO L226 Difference]: Without dead ends: 3769 [2021-12-28 04:31:35,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-28 04:31:35,477 INFO L933 BasicCegarLoop]: 2373 mSDtfsCounter, 6957 mSDsluCounter, 5245 mSDsCounter, 0 mSdLazyCounter, 7060 mSolverCounterSat, 5496 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7273 SdHoareTripleChecker+Valid, 7618 SdHoareTripleChecker+Invalid, 12556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5496 IncrementalHoareTripleChecker+Valid, 7060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:31:35,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7273 Valid, 7618 Invalid, 12556 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5496 Valid, 7060 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2021-12-28 04:31:35,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2021-12-28 04:31:35,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 3338. [2021-12-28 04:31:35,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3338 states, 2308 states have (on average 1.317157712305026) internal successors, (3040), 2342 states have internal predecessors, (3040), 867 states have call successors, (867), 163 states have call predecessors, (867), 162 states have return successors, (866), 854 states have call predecessors, (866), 866 states have call successors, (866) [2021-12-28 04:31:35,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3338 states to 3338 states and 4773 transitions. [2021-12-28 04:31:35,682 INFO L78 Accepts]: Start accepts. Automaton has 3338 states and 4773 transitions. Word has length 178 [2021-12-28 04:31:35,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:31:35,684 INFO L470 AbstractCegarLoop]: Abstraction has 3338 states and 4773 transitions. [2021-12-28 04:31:35,685 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, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 04:31:35,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3338 states and 4773 transitions. [2021-12-28 04:31:35,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-12-28 04:31:35,701 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:31:35,702 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2021-12-28 04:31:35,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:31:35,703 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:31:35,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:31:35,703 INFO L85 PathProgramCache]: Analyzing trace with hash 773468645, now seen corresponding path program 1 times [2021-12-28 04:31:35,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:31:35,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101706520] [2021-12-28 04:31:35,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:31:35,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:31:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:35,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:31:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:35,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:35,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:35,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:31:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:35,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:35,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:35,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:31:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:35,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:31:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:31:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:31:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:31:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:31:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:31:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:31:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-28 04:31:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 04:31:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-28 04:31:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-28 04:31:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:36,190 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-12-28 04:31:36,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:31:36,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101706520] [2021-12-28 04:31:36,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101706520] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:31:36,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:31:36,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:31:36,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676256671] [2021-12-28 04:31:36,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:31:36,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:31:36,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:31:36,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:31:36,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:31:36,194 INFO L87 Difference]: Start difference. First operand 3338 states and 4773 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, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 04:31:44,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:31:44,925 INFO L93 Difference]: Finished difference Result 10810 states and 15611 transitions. [2021-12-28 04:31:44,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 04:31:44,925 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, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 179 [2021-12-28 04:31:44,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:31:44,978 INFO L225 Difference]: With dead ends: 10810 [2021-12-28 04:31:44,978 INFO L226 Difference]: Without dead ends: 7500 [2021-12-28 04:31:44,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-28 04:31:44,999 INFO L933 BasicCegarLoop]: 2381 mSDtfsCounter, 5593 mSDsluCounter, 6710 mSDsCounter, 0 mSdLazyCounter, 8874 mSolverCounterSat, 4206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5912 SdHoareTripleChecker+Valid, 9091 SdHoareTripleChecker+Invalid, 13080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4206 IncrementalHoareTripleChecker+Valid, 8874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-12-28 04:31:44,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5912 Valid, 9091 Invalid, 13080 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4206 Valid, 8874 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2021-12-28 04:31:45,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7500 states. [2021-12-28 04:31:45,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7500 to 6647. [2021-12-28 04:31:45,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6647 states, 4600 states have (on average 1.3169565217391304) internal successors, (6058), 4667 states have internal predecessors, (6058), 1722 states have call successors, (1722), 325 states have call predecessors, (1722), 324 states have return successors, (1721), 1698 states have call predecessors, (1721), 1721 states have call successors, (1721) [2021-12-28 04:31:45,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6647 states to 6647 states and 9501 transitions. [2021-12-28 04:31:45,312 INFO L78 Accepts]: Start accepts. Automaton has 6647 states and 9501 transitions. Word has length 179 [2021-12-28 04:31:45,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:31:45,312 INFO L470 AbstractCegarLoop]: Abstraction has 6647 states and 9501 transitions. [2021-12-28 04:31:45,314 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, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 04:31:45,315 INFO L276 IsEmpty]: Start isEmpty. Operand 6647 states and 9501 transitions. [2021-12-28 04:31:45,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-28 04:31:45,322 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:31:45,323 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2021-12-28 04:31:45,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:31:45,325 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:31:45,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:31:45,326 INFO L85 PathProgramCache]: Analyzing trace with hash 2055801823, now seen corresponding path program 1 times [2021-12-28 04:31:45,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:31:45,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462765832] [2021-12-28 04:31:45,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:31:45,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:31:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:31:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:31:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:31:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:31:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:31:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:31:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:31:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:31:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:31:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:31:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:31:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:31:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-28 04:31:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-28 04:31:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:45,781 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-12-28 04:31:45,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:31:45,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462765832] [2021-12-28 04:31:45,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462765832] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:31:45,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:31:45,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:31:45,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145256218] [2021-12-28 04:31:45,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:31:45,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:31:45,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:31:45,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:31:45,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:31:45,784 INFO L87 Difference]: Start difference. First operand 6647 states and 9501 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, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 04:31:53,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:31:53,418 INFO L93 Difference]: Finished difference Result 21588 states and 31145 transitions. [2021-12-28 04:31:53,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 04:31:53,418 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, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 180 [2021-12-28 04:31:53,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:31:53,523 INFO L225 Difference]: With dead ends: 21588 [2021-12-28 04:31:53,523 INFO L226 Difference]: Without dead ends: 14969 [2021-12-28 04:31:53,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-28 04:31:53,568 INFO L933 BasicCegarLoop]: 2364 mSDtfsCounter, 6951 mSDsluCounter, 5201 mSDsCounter, 0 mSdLazyCounter, 7039 mSolverCounterSat, 5514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7267 SdHoareTripleChecker+Valid, 7565 SdHoareTripleChecker+Invalid, 12553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5514 IncrementalHoareTripleChecker+Valid, 7039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:31:53,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7267 Valid, 7565 Invalid, 12553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5514 Valid, 7039 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-12-28 04:31:53,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14969 states. [2021-12-28 04:31:54,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14969 to 13270. [2021-12-28 04:31:54,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13270 states, 9189 states have (on average 1.3165741647622158) internal successors, (12098), 9321 states have internal predecessors, (12098), 3431 states have call successors, (3431), 650 states have call predecessors, (3431), 649 states have return successors, (3430), 3386 states have call predecessors, (3430), 3430 states have call successors, (3430) [2021-12-28 04:31:54,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13270 states to 13270 states and 18959 transitions. [2021-12-28 04:31:54,413 INFO L78 Accepts]: Start accepts. Automaton has 13270 states and 18959 transitions. Word has length 180 [2021-12-28 04:31:54,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:31:54,413 INFO L470 AbstractCegarLoop]: Abstraction has 13270 states and 18959 transitions. [2021-12-28 04:31:54,414 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, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 04:31:54,415 INFO L276 IsEmpty]: Start isEmpty. Operand 13270 states and 18959 transitions. [2021-12-28 04:31:54,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-28 04:31:54,424 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:31:54,424 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:31:54,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 04:31:54,425 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:31:54,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:31:54,425 INFO L85 PathProgramCache]: Analyzing trace with hash 834402077, now seen corresponding path program 1 times [2021-12-28 04:31:54,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:31:54,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429694044] [2021-12-28 04:31:54,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:31:54,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:31:54,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:31:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:31:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:31:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:31:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:31:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:31:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:31:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:31:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:31:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:31:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:31:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:31:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-28 04:31:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-28 04:31:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-28 04:31:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-28 04:31:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-28 04:31:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:31:54,861 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-12-28 04:31:54,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:31:54,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429694044] [2021-12-28 04:31:54,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429694044] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:31:54,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:31:54,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:31:54,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041887164] [2021-12-28 04:31:54,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:31:54,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:31:54,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:31:54,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:31:54,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:31:54,864 INFO L87 Difference]: Start difference. First operand 13270 states and 18959 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 04:32:01,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:32:01,118 INFO L93 Difference]: Finished difference Result 39963 states and 57434 transitions. [2021-12-28 04:32:01,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-28 04:32:01,119 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 191 [2021-12-28 04:32:01,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:32:01,276 INFO L225 Difference]: With dead ends: 39963 [2021-12-28 04:32:01,277 INFO L226 Difference]: Without dead ends: 26721 [2021-12-28 04:32:01,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-12-28 04:32:01,450 INFO L933 BasicCegarLoop]: 2272 mSDtfsCounter, 5142 mSDsluCounter, 3478 mSDsCounter, 0 mSdLazyCounter, 4116 mSolverCounterSat, 3896 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5382 SdHoareTripleChecker+Valid, 5750 SdHoareTripleChecker+Invalid, 8012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3896 IncrementalHoareTripleChecker+Valid, 4116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-28 04:32:01,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5382 Valid, 5750 Invalid, 8012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3896 Valid, 4116 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2021-12-28 04:32:01,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26721 states. [2021-12-28 04:32:02,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26721 to 23658. [2021-12-28 04:32:02,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23658 states, 16421 states have (on average 1.313561902441995) internal successors, (21570), 16693 states have internal predecessors, (21570), 6019 states have call successors, (6019), 1226 states have call predecessors, (6019), 1217 states have return successors, (6018), 5898 states have call predecessors, (6018), 6018 states have call successors, (6018) [2021-12-28 04:32:02,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23658 states to 23658 states and 33607 transitions. [2021-12-28 04:32:02,688 INFO L78 Accepts]: Start accepts. Automaton has 23658 states and 33607 transitions. Word has length 191 [2021-12-28 04:32:02,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:32:02,689 INFO L470 AbstractCegarLoop]: Abstraction has 23658 states and 33607 transitions. [2021-12-28 04:32:02,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 04:32:02,689 INFO L276 IsEmpty]: Start isEmpty. Operand 23658 states and 33607 transitions. [2021-12-28 04:32:02,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-28 04:32:02,694 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:32:02,694 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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 04:32:02,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 04:32:02,695 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:32:02,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:32:02,696 INFO L85 PathProgramCache]: Analyzing trace with hash 2051492776, now seen corresponding path program 1 times [2021-12-28 04:32:02,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:32:02,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951068096] [2021-12-28 04:32:02,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:32:02,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:32:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:02,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:32:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:02,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:32:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:02,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:32:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:02,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:32:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:02,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:32:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:02,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:32:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:02,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:32:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:02,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:32:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:02,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:32:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:02,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:32:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:02,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:32:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:02,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:32:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:02,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:32:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:03,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:32:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:03,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:32:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:03,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:32:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:03,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:32:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:03,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:32:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:03,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:32:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:03,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:32:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:03,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 04:32:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:03,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-28 04:32:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:03,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-28 04:32:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:03,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-28 04:32:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:03,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 04:32:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:03,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 04:32:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:32:03,121 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-12-28 04:32:03,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:32:03,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951068096] [2021-12-28 04:32:03,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951068096] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:32:03,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:32:03,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:32:03,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494968129] [2021-12-28 04:32:03,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:32:03,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:32:03,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:32:03,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:32:03,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:32:03,125 INFO L87 Difference]: Start difference. First operand 23658 states and 33607 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16)