./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.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 5ba89c3eceb6ce3b33f7045e58fd9531469c7ed109a8240b2f15aad930b1478d --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 23:50:26,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 23:50:26,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 23:50:26,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 23:50:26,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 23:50:26,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 23:50:27,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 23:50:27,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 23:50:27,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 23:50:27,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 23:50:27,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 23:50:27,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 23:50:27,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 23:50:27,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 23:50:27,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 23:50:27,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 23:50:27,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 23:50:27,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 23:50:27,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 23:50:27,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 23:50:27,027 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 23:50:27,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 23:50:27,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 23:50:27,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 23:50:27,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 23:50:27,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 23:50:27,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 23:50:27,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 23:50:27,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 23:50:27,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 23:50:27,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 23:50:27,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 23:50:27,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 23:50:27,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 23:50:27,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 23:50:27,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 23:50:27,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 23:50:27,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 23:50:27,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 23:50:27,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 23:50:27,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 23:50:27,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 23:50:27,050 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 23:50:27,077 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 23:50:27,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 23:50:27,078 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 23:50:27,079 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 23:50:27,079 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 23:50:27,080 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 23:50:27,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 23:50:27,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 23:50:27,081 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 23:50:27,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 23:50:27,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 23:50:27,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 23:50:27,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 23:50:27,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 23:50:27,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 23:50:27,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 23:50:27,083 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 23:50:27,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 23:50:27,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 23:50:27,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 23:50:27,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 23:50:27,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:50:27,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 23:50:27,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 23:50:27,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 23:50:27,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 23:50:27,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 23:50:27,085 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 23:50:27,086 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 23:50:27,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 23:50:27,086 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ba89c3eceb6ce3b33f7045e58fd9531469c7ed109a8240b2f15aad930b1478d [2022-07-22 23:50:27,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 23:50:27,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 23:50:27,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 23:50:27,335 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 23:50:27,335 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 23:50:27,336 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i [2022-07-22 23:50:27,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49a86f7cb/79080ffd580946a6965ada24f6e5bda7/FLAG08f13bd83 [2022-07-22 23:50:28,119 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 23:50:28,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i [2022-07-22 23:50:28,171 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49a86f7cb/79080ffd580946a6965ada24f6e5bda7/FLAG08f13bd83 [2022-07-22 23:50:28,670 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49a86f7cb/79080ffd580946a6965ada24f6e5bda7 [2022-07-22 23:50:28,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 23:50:28,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 23:50:28,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 23:50:28,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 23:50:28,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 23:50:28,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:50:28" (1/1) ... [2022-07-22 23:50:28,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@689187ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:50:28, skipping insertion in model container [2022-07-22 23:50:28,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:50:28" (1/1) ... [2022-07-22 23:50:28,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 23:50:28,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:50:29,955 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i[170192,170205] [2022-07-22 23:50:31,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:50:31,359 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 23:50:31,491 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i[170192,170205] [2022-07-22 23:50:31,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:50:31,887 INFO L208 MainTranslator]: Completed translation [2022-07-22 23:50:31,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:50:31 WrapperNode [2022-07-22 23:50:31,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 23:50:31,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 23:50:31,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 23:50:31,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 23:50:31,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:50:31" (1/1) ... [2022-07-22 23:50:32,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:50:31" (1/1) ... [2022-07-22 23:50:32,203 INFO L137 Inliner]: procedures = 347, calls = 3095, calls flagged for inlining = 175, calls inlined = 164, statements flattened = 6637 [2022-07-22 23:50:32,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 23:50:32,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 23:50:32,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 23:50:32,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 23:50:32,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:50:31" (1/1) ... [2022-07-22 23:50:32,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:50:31" (1/1) ... [2022-07-22 23:50:32,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:50:31" (1/1) ... [2022-07-22 23:50:32,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:50:31" (1/1) ... [2022-07-22 23:50:32,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:50:31" (1/1) ... [2022-07-22 23:50:32,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:50:31" (1/1) ... [2022-07-22 23:50:32,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:50:31" (1/1) ... [2022-07-22 23:50:32,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 23:50:32,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 23:50:32,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 23:50:32,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 23:50:32,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:50:31" (1/1) ... [2022-07-22 23:50:32,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:50:32,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:50:32,644 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 23:50:32,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 23:50:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_do_ioctl [2022-07-22 23:50:32,690 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_do_ioctl [2022-07-22 23:50:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_disable_cam_entry_post [2022-07-22 23:50:32,690 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_disable_cam_entry_post [2022-07-22 23:50:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-22 23:50:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-22 23:50:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-22 23:50:32,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-22 23:50:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_put [2022-07-22 23:50:32,691 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_put [2022-07-22 23:50:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_write [2022-07-22 23:50:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_write [2022-07-22 23:50:32,692 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-22 23:50:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-22 23:50:32,692 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_select_mii [2022-07-22 23:50:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_select_mii [2022-07-22 23:50:32,692 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_edmac [2022-07-22 23:50:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_edmac [2022-07-22 23:50:32,693 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_read [2022-07-22 23:50:32,693 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_read [2022-07-22 23:50:32,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-22 23:50:32,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-22 23:50:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_write [2022-07-22 23:50:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_write [2022-07-22 23:50:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-22 23:50:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2022-07-22 23:50:32,740 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2022-07-22 23:50:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-22 23:50:32,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-22 23:50:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_disable_cam_entry_table [2022-07-22 23:50:32,740 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_disable_cam_entry_table [2022-07-22 23:50:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-22 23:50:32,740 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-22 23:50:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_vtag_index [2022-07-22 23:50:32,740 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_vtag_index [2022-07-22 23:50:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_edtrr_trns [2022-07-22 23:50:32,740 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_edtrr_trns [2022-07-22 23:50:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-22 23:50:32,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-22 23:50:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_giga [2022-07-22 23:50:32,741 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_giga [2022-07-22 23:50:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-07-22 23:50:32,741 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-07-22 23:50:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-22 23:50:32,741 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-22 23:50:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-22 23:50:32,741 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-22 23:50:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap_resource [2022-07-22 23:50:32,741 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap_resource [2022-07-22 23:50:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-22 23:50:32,742 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-22 23:50:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure bb_clr [2022-07-22 23:50:32,742 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_clr [2022-07-22 23:50:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 23:50:32,742 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 23:50:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_get_sync [2022-07-22 23:50:32,742 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_get_sync [2022-07-22 23:50:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_duplex [2022-07-22 23:50:32,742 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_duplex [2022-07-22 23:50:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-22 23:50:32,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-22 23:50:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-22 23:50:32,743 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-22 23:50:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_post_reg_offset [2022-07-22 23:50:32,743 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_post_reg_offset [2022-07-22 23:50:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset_r8a7740 [2022-07-22 23:50:32,743 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset_r8a7740 [2022-07-22 23:50:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-22 23:50:32,743 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-22 23:50:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset_giga [2022-07-22 23:50:32,743 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset_giga [2022-07-22 23:50:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_free_dma_buffer [2022-07-22 23:50:32,743 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_free_dma_buffer [2022-07-22 23:50:32,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 23:50:32,744 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_busy [2022-07-22 23:50:32,744 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_busy [2022-07-22 23:50:32,744 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_r8a777x [2022-07-22 23:50:32,744 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_r8a777x [2022-07-22 23:50:32,744 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-22 23:50:32,744 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-22 23:50:32,744 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-07-22 23:50:32,744 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-07-22 23:50:32,744 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-22 23:50:32,744 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-22 23:50:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 23:50:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-22 23:50:32,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-22 23:50:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_12 [2022-07-22 23:50:32,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_12 [2022-07-22 23:50:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-22 23:50:32,745 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-22 23:50:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-22 23:50:32,745 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-22 23:50:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-22 23:50:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-22 23:50:32,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-22 23:50:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-22 23:50:32,746 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-22 23:50:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tx_timeout [2022-07-22 23:50:32,746 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tx_timeout [2022-07-22 23:50:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-07-22 23:50:32,746 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-07-22 23:50:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_runtime_nop [2022-07-22 23:50:32,746 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_runtime_nop [2022-07-22 23:50:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 23:50:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 23:50:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_ring_free [2022-07-22 23:50:32,746 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_ring_free [2022-07-22 23:50:32,747 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-22 23:50:32,747 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-22 23:50:32,747 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_open [2022-07-22 23:50:32,747 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_open [2022-07-22 23:50:32,749 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-22 23:50:32,749 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-22 23:50:32,749 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-22 23:50:32,750 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-22 23:50:32,750 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_multicast_list [2022-07-22 23:50:32,750 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_multicast_list [2022-07-22 23:50:32,751 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-22 23:50:32,753 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-22 23:50:32,754 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-22 23:50:32,754 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-22 23:50:32,754 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset [2022-07-22 23:50:32,755 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset [2022-07-22 23:50:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-22 23:50:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-22 23:50:32,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-22 23:50:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_put_sync [2022-07-22 23:50:32,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_put_sync [2022-07-22 23:50:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-22 23:50:32,759 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-22 23:50:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_read_entry [2022-07-22 23:50:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_read_entry [2022-07-22 23:50:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_txfree [2022-07-22 23:50:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_txfree [2022-07-22 23:50:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-22 23:50:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_start_xmit [2022-07-22 23:50:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_start_xmit [2022-07-22 23:50:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-07-22 23:50:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-07-22 23:50:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_rcv_snd_disable [2022-07-22 23:50:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_rcv_snd_disable [2022-07-22 23:50:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-22 23:50:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-22 23:50:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-22 23:50:32,762 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-22 23:50:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 23:50:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-22 23:50:32,762 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-22 23:50:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-22 23:50:32,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-22 23:50:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_close [2022-07-22 23:50:32,763 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_close [2022-07-22 23:50:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_read [2022-07-22 23:50:32,763 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_read [2022-07-22 23:50:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_soft_swap [2022-07-22 23:50:32,763 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_soft_swap [2022-07-22 23:50:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-22 23:50:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-22 23:50:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-22 23:50:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-22 23:50:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_is_rz_fast_ether [2022-07-22 23:50:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_is_rz_fast_ether [2022-07-22 23:50:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure bb_set [2022-07-22 23:50:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_set [2022-07-22 23:50:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_find_entry [2022-07-22 23:50:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_find_entry [2022-07-22 23:50:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-22 23:50:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-22 23:50:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-22 23:50:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-22 23:50:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_dev_init [2022-07-22 23:50:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_dev_init [2022-07-22 23:50:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_stats [2022-07-22 23:50:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_stats [2022-07-22 23:50:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 23:50:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_vlan_rx_kill_vid [2022-07-22 23:50:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_vlan_rx_kill_vid [2022-07-22 23:50:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_sh7724 [2022-07-22 23:50:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_sh7724 [2022-07-22 23:50:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-22 23:50:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-22 23:50:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_disable [2022-07-22 23:50:32,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_disable [2022-07-22 23:50:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_adjust_link [2022-07-22 23:50:32,768 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_adjust_link [2022-07-22 23:50:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-22 23:50:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-22 23:50:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-07-22 23:50:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_vlan_rx_add_vid [2022-07-22 23:50:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_vlan_rx_add_vid [2022-07-22 23:50:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_ring_init [2022-07-22 23:50:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_ring_init [2022-07-22 23:50:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure __pm_runtime_idle [2022-07-22 23:50:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __pm_runtime_idle [2022-07-22 23:50:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-07-22 23:50:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-07-22 23:50:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 23:50:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_purge_mcast [2022-07-22 23:50:32,771 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_purge_mcast [2022-07-22 23:50:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-22 23:50:32,771 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-22 23:50:32,772 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-07-22 23:50:32,772 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-07-22 23:50:32,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 23:50:32,772 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-07-22 23:50:32,772 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-07-22 23:50:32,772 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-22 23:50:32,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-22 23:50:32,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 23:50:32,773 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-22 23:50:32,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-22 23:50:32,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-22 23:50:32,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-22 23:50:32,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-22 23:50:32,773 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-22 23:50:32,774 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-22 23:50:32,774 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_register [2022-07-22 23:50:32,774 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_register [2022-07-22 23:50:32,774 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_is_gether [2022-07-22 23:50:32,775 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_is_gether [2022-07-22 23:50:32,775 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-22 23:50:32,775 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-22 23:50:32,775 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_sh7757 [2022-07-22 23:50:32,776 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_sh7757 [2022-07-22 23:50:32,776 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_receive_align [2022-07-22 23:50:32,776 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_receive_align [2022-07-22 23:50:32,776 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_rcv_snd_enable [2022-07-22 23:50:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_rcv_snd_enable [2022-07-22 23:50:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_offset [2022-07-22 23:50:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_offset [2022-07-22 23:50:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_gether [2022-07-22 23:50:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_gether [2022-07-22 23:50:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-22 23:50:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-22 23:50:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-22 23:50:32,778 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-22 23:50:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-22 23:50:32,778 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-22 23:50:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-07-22 23:50:32,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-07-22 23:50:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-22 23:50:32,779 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-22 23:50:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 23:50:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure sh_mdio_release [2022-07-22 23:50:32,780 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_mdio_release [2022-07-22 23:50:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_write_entry [2022-07-22 23:50:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_write_entry [2022-07-22 23:50:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_post_bit [2022-07-22 23:50:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_post_bit [2022-07-22 23:50:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 23:50:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 23:50:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure free_mdio_bitbang [2022-07-22 23:50:32,784 INFO L138 BoogieDeclarations]: Found implementation of procedure free_mdio_bitbang [2022-07-22 23:50:32,784 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-22 23:50:32,784 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-22 23:50:33,645 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 23:50:33,649 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 23:50:34,052 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-22 23:51:19,988 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 23:51:20,013 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 23:51:20,014 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2022-07-22 23:51:20,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:51:20 BoogieIcfgContainer [2022-07-22 23:51:20,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 23:51:20,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 23:51:20,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 23:51:20,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 23:51:20,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 11:50:28" (1/3) ... [2022-07-22 23:51:20,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27222c6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:51:20, skipping insertion in model container [2022-07-22 23:51:20,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:50:31" (2/3) ... [2022-07-22 23:51:20,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27222c6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:51:20, skipping insertion in model container [2022-07-22 23:51:20,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:51:20" (3/3) ... [2022-07-22 23:51:20,026 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i [2022-07-22 23:51:20,039 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 23:51:20,039 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 23:51:20,131 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 23:51:20,136 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@c5bcba6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@633f6b4b [2022-07-22 23:51:20,136 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 23:51:20,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 2405 states, 1668 states have (on average 1.3890887290167866) internal successors, (2317), 1746 states have internal predecessors, (2317), 624 states have call successors, (624), 118 states have call predecessors, (624), 117 states have return successors, (605), 579 states have call predecessors, (605), 605 states have call successors, (605) [2022-07-22 23:51:20,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-22 23:51:20,163 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:51:20,164 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:51:20,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:51:20,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:51:20,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1876844181, now seen corresponding path program 1 times [2022-07-22 23:51:20,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:51:20,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65328642] [2022-07-22 23:51:20,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:51:20,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:51:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:21,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:51:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:21,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:51:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:21,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:51:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:21,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:51:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:21,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:51:21,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:21,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:51:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:21,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:51:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:21,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:51:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:21,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:51:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:21,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 23:51:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:21,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 23:51:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:21,244 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-07-22 23:51:21,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:51:21,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65328642] [2022-07-22 23:51:21,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65328642] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:51:21,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:51:21,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 23:51:21,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788757354] [2022-07-22 23:51:21,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:51:21,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:51:21,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:51:21,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:51:21,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:51:21,289 INFO L87 Difference]: Start difference. First operand has 2405 states, 1668 states have (on average 1.3890887290167866) internal successors, (2317), 1746 states have internal predecessors, (2317), 624 states have call successors, (624), 118 states have call predecessors, (624), 117 states have return successors, (605), 579 states have call predecessors, (605), 605 states have call successors, (605) Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-22 23:51:23,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:51:25,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:51:27,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:51:40,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:51:40,210 INFO L93 Difference]: Finished difference Result 7802 states and 11910 transitions. [2022-07-22 23:51:40,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 23:51:40,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 87 [2022-07-22 23:51:40,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:51:40,270 INFO L225 Difference]: With dead ends: 7802 [2022-07-22 23:51:40,271 INFO L226 Difference]: Without dead ends: 5342 [2022-07-22 23:51:40,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 23:51:40,298 INFO L413 NwaCegarLoop]: 3565 mSDtfsCounter, 6575 mSDsluCounter, 4669 mSDsCounter, 0 mSdLazyCounter, 4618 mSolverCounterSat, 4273 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6969 SdHoareTripleChecker+Valid, 8234 SdHoareTripleChecker+Invalid, 8894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4273 IncrementalHoareTripleChecker+Valid, 4618 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-07-22 23:51:40,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6969 Valid, 8234 Invalid, 8894 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4273 Valid, 4618 Invalid, 3 Unknown, 0 Unchecked, 18.2s Time] [2022-07-22 23:51:40,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5342 states. [2022-07-22 23:51:40,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5342 to 4630. [2022-07-22 23:51:40,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4630 states, 3226 states have (on average 1.3601983880967141) internal successors, (4388), 3328 states have internal predecessors, (4388), 1171 states have call successors, (1171), 233 states have call predecessors, (1171), 232 states have return successors, (1170), 1118 states have call predecessors, (1170), 1170 states have call successors, (1170) [2022-07-22 23:51:40,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4630 states to 4630 states and 6729 transitions. [2022-07-22 23:51:40,663 INFO L78 Accepts]: Start accepts. Automaton has 4630 states and 6729 transitions. Word has length 87 [2022-07-22 23:51:40,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:51:40,664 INFO L495 AbstractCegarLoop]: Abstraction has 4630 states and 6729 transitions. [2022-07-22 23:51:40,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-22 23:51:40,665 INFO L276 IsEmpty]: Start isEmpty. Operand 4630 states and 6729 transitions. [2022-07-22 23:51:40,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-22 23:51:40,673 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:51:40,673 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:51:40,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 23:51:40,674 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:51:40,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:51:40,675 INFO L85 PathProgramCache]: Analyzing trace with hash -130534505, now seen corresponding path program 1 times [2022-07-22 23:51:40,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:51:40,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217081584] [2022-07-22 23:51:40,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:51:40,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:51:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:41,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:51:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:41,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:51:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:41,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:51:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:41,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:51:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:41,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:51:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:41,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:51:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:41,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:51:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:41,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:51:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:41,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:51:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:41,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 23:51:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:41,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 23:51:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:41,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-22 23:51:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:41,343 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-07-22 23:51:41,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:51:41,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217081584] [2022-07-22 23:51:41,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217081584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:51:41,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:51:41,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 23:51:41,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680528981] [2022-07-22 23:51:41,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:51:41,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 23:51:41,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:51:41,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 23:51:41,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:51:41,347 INFO L87 Difference]: Start difference. First operand 4630 states and 6729 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-22 23:51:43,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:51:45,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:52:00,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:52:00,921 INFO L93 Difference]: Finished difference Result 15231 states and 22630 transitions. [2022-07-22 23:52:00,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 23:52:00,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 97 [2022-07-22 23:52:00,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:52:00,994 INFO L225 Difference]: With dead ends: 15231 [2022-07-22 23:52:00,995 INFO L226 Difference]: Without dead ends: 10621 [2022-07-22 23:52:01,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-07-22 23:52:01,026 INFO L413 NwaCegarLoop]: 3802 mSDtfsCounter, 6405 mSDsluCounter, 9503 mSDsCounter, 0 mSdLazyCounter, 9068 mSolverCounterSat, 4063 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6809 SdHoareTripleChecker+Valid, 13305 SdHoareTripleChecker+Invalid, 13133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4063 IncrementalHoareTripleChecker+Valid, 9068 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2022-07-22 23:52:01,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6809 Valid, 13305 Invalid, 13133 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4063 Valid, 9068 Invalid, 2 Unknown, 0 Unchecked, 18.8s Time] [2022-07-22 23:52:01,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10621 states. [2022-07-22 23:52:01,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10621 to 9515. [2022-07-22 23:52:01,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9515 states, 6636 states have (on average 1.3603074141048825) internal successors, (9027), 6858 states have internal predecessors, (9027), 2388 states have call successors, (2388), 465 states have call predecessors, (2388), 490 states have return successors, (2560), 2293 states have call predecessors, (2560), 2387 states have call successors, (2560) [2022-07-22 23:52:01,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9515 states to 9515 states and 13975 transitions. [2022-07-22 23:52:01,519 INFO L78 Accepts]: Start accepts. Automaton has 9515 states and 13975 transitions. Word has length 97 [2022-07-22 23:52:01,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:52:01,520 INFO L495 AbstractCegarLoop]: Abstraction has 9515 states and 13975 transitions. [2022-07-22 23:52:01,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-22 23:52:01,521 INFO L276 IsEmpty]: Start isEmpty. Operand 9515 states and 13975 transitions. [2022-07-22 23:52:01,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-07-22 23:52:01,546 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:52:01,547 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:52:01,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 23:52:01,547 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:52:01,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:52:01,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1579586957, now seen corresponding path program 1 times [2022-07-22 23:52:01,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:52:01,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531644748] [2022-07-22 23:52:01,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:52:01,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:52:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:01,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:52:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:01,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:52:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:01,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:52:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:01,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:52:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:01,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:52:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:02,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:52:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:02,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:52:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:02,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:52:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:02,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:52:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:02,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 23:52:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:02,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 23:52:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:02,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-22 23:52:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:02,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-22 23:52:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:02,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:02,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-22 23:52:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:02,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:02,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:52:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:02,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 23:52:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:02,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:02,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 23:52:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:02,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-22 23:52:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:02,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-22 23:52:02,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:52:02,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531644748] [2022-07-22 23:52:02,273 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-07-22 23:52:02,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834084183] [2022-07-22 23:52:02,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:52:02,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:52:02,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:52:02,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:52:02,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 23:52:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:03,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 5317 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:52:03,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:52:03,550 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-07-22 23:52:03,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:52:03,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834084183] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:52:03,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:52:03,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:52:03,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483912630] [2022-07-22 23:52:03,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:52:03,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:52:03,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:52:03,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:52:03,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-22 23:52:03,558 INFO L87 Difference]: Start difference. First operand 9515 states and 13975 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-22 23:52:03,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:52:03,898 INFO L93 Difference]: Finished difference Result 19008 states and 27921 transitions. [2022-07-22 23:52:03,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:52:03,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 218 [2022-07-22 23:52:03,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:52:03,969 INFO L225 Difference]: With dead ends: 19008 [2022-07-22 23:52:03,969 INFO L226 Difference]: Without dead ends: 9519 [2022-07-22 23:52:04,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-22 23:52:04,021 INFO L413 NwaCegarLoop]: 3419 mSDtfsCounter, 0 mSDsluCounter, 3414 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6833 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:52:04,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6833 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:52:04,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9519 states. [2022-07-22 23:52:04,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9519 to 9519. [2022-07-22 23:52:04,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9519 states, 6640 states have (on average 1.360090361445783) internal successors, (9031), 6862 states have internal predecessors, (9031), 2388 states have call successors, (2388), 465 states have call predecessors, (2388), 490 states have return successors, (2560), 2293 states have call predecessors, (2560), 2387 states have call successors, (2560) [2022-07-22 23:52:04,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9519 states to 9519 states and 13979 transitions. [2022-07-22 23:52:04,445 INFO L78 Accepts]: Start accepts. Automaton has 9519 states and 13979 transitions. Word has length 218 [2022-07-22 23:52:04,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:52:04,446 INFO L495 AbstractCegarLoop]: Abstraction has 9519 states and 13979 transitions. [2022-07-22 23:52:04,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-22 23:52:04,446 INFO L276 IsEmpty]: Start isEmpty. Operand 9519 states and 13979 transitions. [2022-07-22 23:52:04,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-07-22 23:52:04,468 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:52:04,469 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:52:04,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 23:52:04,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:52:04,692 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:52:04,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:52:04,692 INFO L85 PathProgramCache]: Analyzing trace with hash -262888757, now seen corresponding path program 1 times [2022-07-22 23:52:04,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:52:04,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291361305] [2022-07-22 23:52:04,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:52:04,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:52:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:52:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:52:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:52:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:52:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:52:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:52:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:52:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:52:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:52:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 23:52:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 23:52:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-22 23:52:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-22 23:52:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-22 23:52:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:52:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 23:52:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 23:52:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-22 23:52:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-22 23:52:05,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:52:05,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291361305] [2022-07-22 23:52:05,307 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-07-22 23:52:05,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667936738] [2022-07-22 23:52:05,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:52:05,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:52:05,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:52:05,309 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:52:05,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 23:52:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:06,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 5320 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:52:06,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:52:06,700 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-07-22 23:52:06,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:52:06,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667936738] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:52:06,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:52:06,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:52:06,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794895954] [2022-07-22 23:52:06,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:52:06,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:52:06,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:52:06,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:52:06,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-22 23:52:06,703 INFO L87 Difference]: Start difference. First operand 9519 states and 13979 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-22 23:52:06,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:52:06,939 INFO L93 Difference]: Finished difference Result 19016 states and 27929 transitions. [2022-07-22 23:52:06,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:52:06,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 218 [2022-07-22 23:52:06,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:52:06,998 INFO L225 Difference]: With dead ends: 19016 [2022-07-22 23:52:06,998 INFO L226 Difference]: Without dead ends: 9523 [2022-07-22 23:52:07,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-22 23:52:07,050 INFO L413 NwaCegarLoop]: 3419 mSDtfsCounter, 0 mSDsluCounter, 3414 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6833 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:52:07,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6833 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:52:07,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9523 states. [2022-07-22 23:52:07,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9523 to 9523. [2022-07-22 23:52:07,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9523 states, 6644 states have (on average 1.3598735701384708) internal successors, (9035), 6866 states have internal predecessors, (9035), 2388 states have call successors, (2388), 465 states have call predecessors, (2388), 490 states have return successors, (2560), 2293 states have call predecessors, (2560), 2387 states have call successors, (2560) [2022-07-22 23:52:07,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9523 states to 9523 states and 13983 transitions. [2022-07-22 23:52:07,584 INFO L78 Accepts]: Start accepts. Automaton has 9523 states and 13983 transitions. Word has length 218 [2022-07-22 23:52:07,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:52:07,586 INFO L495 AbstractCegarLoop]: Abstraction has 9523 states and 13983 transitions. [2022-07-22 23:52:07,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-22 23:52:07,586 INFO L276 IsEmpty]: Start isEmpty. Operand 9523 states and 13983 transitions. [2022-07-22 23:52:07,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-07-22 23:52:07,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:52:07,608 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:52:07,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 23:52:07,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-07-22 23:52:07,816 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:52:07,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:52:07,816 INFO L85 PathProgramCache]: Analyzing trace with hash -595531895, now seen corresponding path program 1 times [2022-07-22 23:52:07,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:52:07,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136020082] [2022-07-22 23:52:07,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:52:07,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:52:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:52:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:52:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:52:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:52:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:52:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:52:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:52:08,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:52:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:52:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 23:52:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 23:52:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-22 23:52:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-22 23:52:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-22 23:52:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:52:08,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 23:52:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 23:52:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-22 23:52:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:08,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-22 23:52:08,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:52:08,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136020082] [2022-07-22 23:52:08,407 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-07-22 23:52:08,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720519844] [2022-07-22 23:52:08,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:52:08,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:52:08,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:52:08,410 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:52:08,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 23:52:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:09,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 5323 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:52:09,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:52:09,778 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-07-22 23:52:09,778 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:52:09,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720519844] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:52:09,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:52:09,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:52:09,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543305415] [2022-07-22 23:52:09,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:52:09,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:52:09,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:52:09,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:52:09,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-22 23:52:09,781 INFO L87 Difference]: Start difference. First operand 9523 states and 13983 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-22 23:52:10,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:52:10,403 INFO L93 Difference]: Finished difference Result 27885 states and 40893 transitions. [2022-07-22 23:52:10,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:52:10,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 218 [2022-07-22 23:52:10,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:52:10,516 INFO L225 Difference]: With dead ends: 27885 [2022-07-22 23:52:10,517 INFO L226 Difference]: Without dead ends: 18388 [2022-07-22 23:52:10,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-22 23:52:10,562 INFO L413 NwaCegarLoop]: 3958 mSDtfsCounter, 3142 mSDsluCounter, 3347 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3142 SdHoareTripleChecker+Valid, 7305 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 23:52:10,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3142 Valid, 7305 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 23:52:10,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18388 states. [2022-07-22 23:52:11,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18388 to 18375. [2022-07-22 23:52:11,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18375 states, 12792 states have (on average 1.3568636647904941) internal successors, (17357), 13234 states have internal predecessors, (17357), 4602 states have call successors, (4602), 929 states have call predecessors, (4602), 980 states have return successors, (4932), 4411 states have call predecessors, (4932), 4601 states have call successors, (4932) [2022-07-22 23:52:11,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18375 states to 18375 states and 26891 transitions. [2022-07-22 23:52:11,486 INFO L78 Accepts]: Start accepts. Automaton has 18375 states and 26891 transitions. Word has length 218 [2022-07-22 23:52:11,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:52:11,487 INFO L495 AbstractCegarLoop]: Abstraction has 18375 states and 26891 transitions. [2022-07-22 23:52:11,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-22 23:52:11,487 INFO L276 IsEmpty]: Start isEmpty. Operand 18375 states and 26891 transitions. [2022-07-22 23:52:11,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-07-22 23:52:11,514 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:52:11,514 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:52:11,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 23:52:11,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:52:11,728 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:52:11,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:52:11,728 INFO L85 PathProgramCache]: Analyzing trace with hash 2051074189, now seen corresponding path program 1 times [2022-07-22 23:52:11,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:52:11,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034563760] [2022-07-22 23:52:11,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:52:11,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:52:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:52:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:52:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:52:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:52:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:52:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:52:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:52:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:52:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:52:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 23:52:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 23:52:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 23:52:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:52:12,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:52:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 23:52:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 23:52:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 23:52:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:52:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 23:52:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-22 23:52:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:52:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 23:52:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:52:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 23:52:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:52:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-22 23:52:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:12,606 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-07-22 23:52:12,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:52:12,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034563760] [2022-07-22 23:52:12,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034563760] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:52:12,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:52:12,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-22 23:52:12,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137252873] [2022-07-22 23:52:12,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:52:12,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 23:52:12,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:52:12,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 23:52:12,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-22 23:52:12,610 INFO L87 Difference]: Start difference. First operand 18375 states and 26891 transitions. Second operand has 13 states, 12 states have (on average 12.0) internal successors, (144), 7 states have internal predecessors, (144), 3 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-22 23:52:14,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:52:16,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:52:18,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:52:20,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:52:39,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:52:39,303 INFO L93 Difference]: Finished difference Result 38856 states and 57679 transitions. [2022-07-22 23:52:39,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 23:52:39,304 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.0) internal successors, (144), 7 states have internal predecessors, (144), 3 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) Word has length 262 [2022-07-22 23:52:39,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:52:39,436 INFO L225 Difference]: With dead ends: 38856 [2022-07-22 23:52:39,437 INFO L226 Difference]: Without dead ends: 20507 [2022-07-22 23:52:39,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=433, Unknown=0, NotChecked=0, Total=600 [2022-07-22 23:52:39,522 INFO L413 NwaCegarLoop]: 3028 mSDtfsCounter, 3988 mSDsluCounter, 14394 mSDsCounter, 0 mSdLazyCounter, 14826 mSolverCounterSat, 1619 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4364 SdHoareTripleChecker+Valid, 17422 SdHoareTripleChecker+Invalid, 16449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1619 IncrementalHoareTripleChecker+Valid, 14826 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.3s IncrementalHoareTripleChecker+Time [2022-07-22 23:52:39,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4364 Valid, 17422 Invalid, 16449 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1619 Valid, 14826 Invalid, 4 Unknown, 0 Unchecked, 25.3s Time] [2022-07-22 23:52:39,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20507 states. [2022-07-22 23:52:40,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20507 to 17783. [2022-07-22 23:52:40,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17783 states, 12344 states have (on average 1.3464841218405703) internal successors, (16621), 12782 states have internal predecessors, (16621), 4450 states have call successors, (4450), 929 states have call predecessors, (4450), 988 states have return successors, (4776), 4263 states have call predecessors, (4776), 4449 states have call successors, (4776) [2022-07-22 23:52:40,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17783 states to 17783 states and 25847 transitions. [2022-07-22 23:52:40,642 INFO L78 Accepts]: Start accepts. Automaton has 17783 states and 25847 transitions. Word has length 262 [2022-07-22 23:52:40,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:52:40,643 INFO L495 AbstractCegarLoop]: Abstraction has 17783 states and 25847 transitions. [2022-07-22 23:52:40,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.0) internal successors, (144), 7 states have internal predecessors, (144), 3 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-22 23:52:40,643 INFO L276 IsEmpty]: Start isEmpty. Operand 17783 states and 25847 transitions. [2022-07-22 23:52:40,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-07-22 23:52:40,670 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:52:40,671 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:52:40,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 23:52:40,671 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:52:40,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:52:40,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1535337277, now seen corresponding path program 1 times [2022-07-22 23:52:40,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:52:40,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369881973] [2022-07-22 23:52:40,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:52:40,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:52:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:40,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:52:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:52:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:52:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:52:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:52:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:52:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:52:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:52:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:52:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 23:52:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 23:52:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-22 23:52:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:52:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:52:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 23:52:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 23:52:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:52:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:52:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:52:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 23:52:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-22 23:52:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:52:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 23:52:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:52:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 23:52:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:52:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:52:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-22 23:52:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-07-22 23:52:41,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:52:41,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369881973] [2022-07-22 23:52:41,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369881973] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:52:41,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:52:41,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 23:52:41,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820740742] [2022-07-22 23:52:41,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:52:41,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 23:52:41,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:52:41,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 23:52:41,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-22 23:52:41,411 INFO L87 Difference]: Start difference. First operand 17783 states and 25847 transitions. Second operand has 8 states, 8 states have (on average 18.5) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-22 23:52:43,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:52:58,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:52:58,825 INFO L93 Difference]: Finished difference Result 54841 states and 81366 transitions. [2022-07-22 23:52:58,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 23:52:58,826 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.5) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 267 [2022-07-22 23:52:58,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:52:59,052 INFO L225 Difference]: With dead ends: 54841 [2022-07-22 23:52:59,052 INFO L226 Difference]: Without dead ends: 37084 [2022-07-22 23:52:59,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2022-07-22 23:52:59,146 INFO L413 NwaCegarLoop]: 3477 mSDtfsCounter, 5763 mSDsluCounter, 6572 mSDsCounter, 0 mSdLazyCounter, 8832 mSolverCounterSat, 3636 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6321 SdHoareTripleChecker+Valid, 10049 SdHoareTripleChecker+Invalid, 12469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3636 IncrementalHoareTripleChecker+Valid, 8832 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-07-22 23:52:59,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6321 Valid, 10049 Invalid, 12469 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3636 Valid, 8832 Invalid, 1 Unknown, 0 Unchecked, 15.8s Time] [2022-07-22 23:52:59,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37084 states. [2022-07-22 23:53:00,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37084 to 31899. [2022-07-22 23:53:00,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31899 states, 22198 states have (on average 1.348589963059735) internal successors, (29936), 23058 states have internal predecessors, (29936), 7896 states have call successors, (7896), 1689 states have call predecessors, (7896), 1804 states have return successors, (8483), 7515 states have call predecessors, (8483), 7895 states have call successors, (8483) [2022-07-22 23:53:00,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31899 states to 31899 states and 46315 transitions. [2022-07-22 23:53:00,917 INFO L78 Accepts]: Start accepts. Automaton has 31899 states and 46315 transitions. Word has length 267 [2022-07-22 23:53:00,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:53:00,917 INFO L495 AbstractCegarLoop]: Abstraction has 31899 states and 46315 transitions. [2022-07-22 23:53:00,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.5) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-22 23:53:00,918 INFO L276 IsEmpty]: Start isEmpty. Operand 31899 states and 46315 transitions. [2022-07-22 23:53:00,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-07-22 23:53:00,942 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:53:00,942 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:53:00,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 23:53:00,943 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:53:00,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:53:00,943 INFO L85 PathProgramCache]: Analyzing trace with hash 757778881, now seen corresponding path program 1 times [2022-07-22 23:53:00,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:53:00,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002587371] [2022-07-22 23:53:00,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:53:00,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:53:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:01,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:53:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:01,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:53:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:01,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:53:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:01,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:53:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:01,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:53:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:01,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:53:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:01,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:53:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:01,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:53:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:01,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:53:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:01,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 23:53:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:01,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 23:53:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:01,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-22 23:53:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:01,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 23:53:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:01,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:53:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:01,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:53:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:53:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:53:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:53:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 23:53:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 23:53:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:53:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:53:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 23:53:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:53:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:53:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 23:53:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-22 23:53:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:53:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:53:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 23:53:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:53:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:53:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 23:53:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:53:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:53:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-22 23:53:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-22 23:53:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:02,146 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-07-22 23:53:02,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:53:02,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002587371] [2022-07-22 23:53:02,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002587371] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:53:02,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:53:02,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 23:53:02,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113843719] [2022-07-22 23:53:02,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:53:02,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 23:53:02,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:53:02,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 23:53:02,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:53:02,149 INFO L87 Difference]: Start difference. First operand 31899 states and 46315 transitions. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-22 23:53:04,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:53:06,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:53:19,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:53:19,606 INFO L93 Difference]: Finished difference Result 104909 states and 154708 transitions. [2022-07-22 23:53:19,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 23:53:19,608 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 260 [2022-07-22 23:53:19,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:53:20,039 INFO L225 Difference]: With dead ends: 104909 [2022-07-22 23:53:20,039 INFO L226 Difference]: Without dead ends: 73036 [2022-07-22 23:53:20,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2022-07-22 23:53:20,172 INFO L413 NwaCegarLoop]: 3608 mSDtfsCounter, 6558 mSDsluCounter, 5316 mSDsCounter, 0 mSdLazyCounter, 6501 mSolverCounterSat, 3923 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7162 SdHoareTripleChecker+Valid, 8924 SdHoareTripleChecker+Invalid, 10426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3923 IncrementalHoareTripleChecker+Valid, 6501 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-07-22 23:53:20,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7162 Valid, 8924 Invalid, 10426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3923 Valid, 6501 Invalid, 2 Unknown, 0 Unchecked, 14.6s Time] [2022-07-22 23:53:20,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73036 states. [2022-07-22 23:53:23,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73036 to 62739. [2022-07-22 23:53:23,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62739 states, 43658 states have (on average 1.3485729992212194) internal successors, (58876), 45382 states have internal predecessors, (58876), 15504 states have call successors, (15504), 3345 states have call predecessors, (15504), 3576 states have return successors, (16597), 14739 states have call predecessors, (16597), 15503 states have call successors, (16597) [2022-07-22 23:53:23,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62739 states to 62739 states and 90977 transitions. [2022-07-22 23:53:23,482 INFO L78 Accepts]: Start accepts. Automaton has 62739 states and 90977 transitions. Word has length 260 [2022-07-22 23:53:23,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:53:23,483 INFO L495 AbstractCegarLoop]: Abstraction has 62739 states and 90977 transitions. [2022-07-22 23:53:23,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-07-22 23:53:23,483 INFO L276 IsEmpty]: Start isEmpty. Operand 62739 states and 90977 transitions. [2022-07-22 23:53:23,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-07-22 23:53:23,916 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:53:23,916 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:53:23,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 23:53:23,916 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:53:23,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:53:23,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1351561034, now seen corresponding path program 1 times [2022-07-22 23:53:23,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:53:23,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098882665] [2022-07-22 23:53:23,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:53:23,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:53:24,134 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 23:53:24,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [158456614] [2022-07-22 23:53:24,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:53:24,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:53:24,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:53:24,137 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:53:24,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 23:53:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:25,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 5852 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:53:25,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:53:25,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-07-22 23:53:25,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:53:25,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:53:25,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098882665] [2022-07-22 23:53:25,742 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 23:53:25,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158456614] [2022-07-22 23:53:25,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158456614] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:53:25,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:53:25,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:53:25,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150732099] [2022-07-22 23:53:25,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:53:25,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:53:25,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:53:25,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:53:25,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:53:25,745 INFO L87 Difference]: Start difference. First operand 62739 states and 90977 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-22 23:53:28,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:53:28,159 INFO L93 Difference]: Finished difference Result 125612 states and 182157 transitions. [2022-07-22 23:53:28,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:53:28,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 328 [2022-07-22 23:53:28,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:53:28,527 INFO L225 Difference]: With dead ends: 125612 [2022-07-22 23:53:28,527 INFO L226 Difference]: Without dead ends: 62899 [2022-07-22 23:53:28,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:53:28,861 INFO L413 NwaCegarLoop]: 3282 mSDtfsCounter, 12 mSDsluCounter, 6558 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 9840 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:53:28,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 9840 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:53:28,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62899 states. [2022-07-22 23:53:31,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62899 to 62771. [2022-07-22 23:53:31,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62771 states, 43690 states have (on average 1.3483176928358893) internal successors, (58908), 45414 states have internal predecessors, (58908), 15504 states have call successors, (15504), 3345 states have call predecessors, (15504), 3576 states have return successors, (16597), 14739 states have call predecessors, (16597), 15503 states have call successors, (16597) [2022-07-22 23:53:31,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62771 states to 62771 states and 91009 transitions. [2022-07-22 23:53:31,500 INFO L78 Accepts]: Start accepts. Automaton has 62771 states and 91009 transitions. Word has length 328 [2022-07-22 23:53:31,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:53:31,501 INFO L495 AbstractCegarLoop]: Abstraction has 62771 states and 91009 transitions. [2022-07-22 23:53:31,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-22 23:53:31,501 INFO L276 IsEmpty]: Start isEmpty. Operand 62771 states and 91009 transitions. [2022-07-22 23:53:31,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-07-22 23:53:31,556 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:53:31,556 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:53:31,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 23:53:31,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:53:31,784 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:53:31,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:53:31,784 INFO L85 PathProgramCache]: Analyzing trace with hash 880204684, now seen corresponding path program 1 times [2022-07-22 23:53:31,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:53:31,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128493044] [2022-07-22 23:53:31,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:53:31,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:53:31,959 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 23:53:31,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [781284952] [2022-07-22 23:53:31,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:53:31,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:53:31,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:53:31,964 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:53:31,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 23:53:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:33,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 5849 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:53:33,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:53:33,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-07-22 23:53:33,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:53:33,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:53:33,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128493044] [2022-07-22 23:53:33,614 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 23:53:33,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781284952] [2022-07-22 23:53:33,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781284952] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:53:33,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:53:33,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:53:33,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576848119] [2022-07-22 23:53:33,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:53:33,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:53:33,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:53:33,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:53:33,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:53:33,617 INFO L87 Difference]: Start difference. First operand 62771 states and 91009 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-22 23:53:35,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:53:35,821 INFO L93 Difference]: Finished difference Result 125564 states and 182045 transitions. [2022-07-22 23:53:35,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:53:35,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 328 [2022-07-22 23:53:35,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:53:36,082 INFO L225 Difference]: With dead ends: 125564 [2022-07-22 23:53:36,082 INFO L226 Difference]: Without dead ends: 62819 [2022-07-22 23:53:36,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:53:36,416 INFO L413 NwaCegarLoop]: 3282 mSDtfsCounter, 3 mSDsluCounter, 6557 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 9839 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:53:36,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 9839 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:53:36,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62819 states. [2022-07-22 23:53:38,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62819 to 62803. [2022-07-22 23:53:38,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62803 states, 43722 states have (on average 1.3480627601665065) internal successors, (58940), 45446 states have internal predecessors, (58940), 15504 states have call successors, (15504), 3345 states have call predecessors, (15504), 3576 states have return successors, (16597), 14739 states have call predecessors, (16597), 15503 states have call successors, (16597) [2022-07-22 23:53:39,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62803 states to 62803 states and 91041 transitions. [2022-07-22 23:53:39,241 INFO L78 Accepts]: Start accepts. Automaton has 62803 states and 91041 transitions. Word has length 328 [2022-07-22 23:53:39,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:53:39,242 INFO L495 AbstractCegarLoop]: Abstraction has 62803 states and 91041 transitions. [2022-07-22 23:53:39,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-22 23:53:39,242 INFO L276 IsEmpty]: Start isEmpty. Operand 62803 states and 91041 transitions. [2022-07-22 23:53:39,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-07-22 23:53:39,291 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:53:39,291 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:53:39,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 23:53:39,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-22 23:53:39,508 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:53:39,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:53:39,508 INFO L85 PathProgramCache]: Analyzing trace with hash -941519992, now seen corresponding path program 1 times [2022-07-22 23:53:39,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:53:39,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039997781] [2022-07-22 23:53:39,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:53:39,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:53:39,684 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 23:53:39,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [255661497] [2022-07-22 23:53:39,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:53:39,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:53:39,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:53:39,686 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:53:39,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 23:53:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:41,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 5855 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 23:53:41,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:53:41,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 560 proven. 5 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2022-07-22 23:53:41,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:53:42,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2022-07-22 23:53:42,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:53:42,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039997781] [2022-07-22 23:53:42,307 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 23:53:42,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255661497] [2022-07-22 23:53:42,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255661497] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-22 23:53:42,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:53:42,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2022-07-22 23:53:42,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751045456] [2022-07-22 23:53:42,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:53:42,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 23:53:42,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:53:42,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 23:53:42,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-22 23:53:42,310 INFO L87 Difference]: Start difference. First operand 62803 states and 91041 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 5 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) [2022-07-22 23:53:44,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:53:54,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:53:54,909 INFO L93 Difference]: Finished difference Result 132332 states and 193241 transitions. [2022-07-22 23:53:54,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 23:53:54,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 5 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) Word has length 328 [2022-07-22 23:53:54,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:53:55,280 INFO L225 Difference]: With dead ends: 132332 [2022-07-22 23:53:55,280 INFO L226 Difference]: Without dead ends: 69331 [2022-07-22 23:53:55,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 648 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-07-22 23:53:55,608 INFO L413 NwaCegarLoop]: 3987 mSDtfsCounter, 4926 mSDsluCounter, 4387 mSDsCounter, 0 mSdLazyCounter, 5427 mSolverCounterSat, 724 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5361 SdHoareTripleChecker+Valid, 8374 SdHoareTripleChecker+Invalid, 6152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 724 IncrementalHoareTripleChecker+Valid, 5427 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-07-22 23:53:55,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5361 Valid, 8374 Invalid, 6152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [724 Valid, 5427 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2022-07-22 23:53:55,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69331 states. [2022-07-22 23:53:58,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69331 to 66403. [2022-07-22 23:53:58,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66403 states, 45962 states have (on average 1.341194900134894) internal successors, (61644), 47862 states have internal predecessors, (61644), 16848 states have call successors, (16848), 3345 states have call predecessors, (16848), 3592 states have return successors, (17927), 16099 states have call predecessors, (17927), 16847 states have call successors, (17927) [2022-07-22 23:53:58,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66403 states to 66403 states and 96419 transitions. [2022-07-22 23:53:58,633 INFO L78 Accepts]: Start accepts. Automaton has 66403 states and 96419 transitions. Word has length 328 [2022-07-22 23:53:58,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:53:58,634 INFO L495 AbstractCegarLoop]: Abstraction has 66403 states and 96419 transitions. [2022-07-22 23:53:58,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 5 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) [2022-07-22 23:53:58,634 INFO L276 IsEmpty]: Start isEmpty. Operand 66403 states and 96419 transitions. [2022-07-22 23:53:59,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 685 [2022-07-22 23:53:59,077 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:53:59,077 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 24, 24, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:53:59,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 23:53:59,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:53:59,292 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:53:59,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:53:59,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1910764918, now seen corresponding path program 1 times [2022-07-22 23:53:59,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:53:59,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509381915] [2022-07-22 23:53:59,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:53:59,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:53:59,492 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 23:53:59,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2003519489] [2022-07-22 23:53:59,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:53:59,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:53:59,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:53:59,494 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:53:59,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 23:54:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:01,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 7840 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:54:01,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:54:01,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3159 backedges. 790 proven. 0 refuted. 0 times theorem prover too weak. 2369 trivial. 0 not checked. [2022-07-22 23:54:01,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:54:01,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:54:01,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509381915] [2022-07-22 23:54:01,411 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 23:54:01,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003519489] [2022-07-22 23:54:01,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003519489] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:54:01,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:54:01,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:54:01,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419220283] [2022-07-22 23:54:01,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:54:01,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:54:01,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:54:01,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:54:01,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:54:01,414 INFO L87 Difference]: Start difference. First operand 66403 states and 96419 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2022-07-22 23:54:04,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:54:04,633 INFO L93 Difference]: Finished difference Result 142188 states and 209185 transitions. [2022-07-22 23:54:04,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:54:04,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) Word has length 684 [2022-07-22 23:54:04,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:54:05,057 INFO L225 Difference]: With dead ends: 142188 [2022-07-22 23:54:05,057 INFO L226 Difference]: Without dead ends: 75811 [2022-07-22 23:54:05,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 682 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:54:05,291 INFO L413 NwaCegarLoop]: 3378 mSDtfsCounter, 128 mSDsluCounter, 3288 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 6666 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:54:05,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 6666 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:54:05,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75811 states.