./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 c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-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-tmp.no-commuhash-c3fed41 [2021-12-18 04:12:22,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 04:12:22,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 04:12:22,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 04:12:22,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 04:12:22,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 04:12:22,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 04:12:22,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 04:12:22,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 04:12:22,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 04:12:22,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 04:12:22,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 04:12:22,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 04:12:22,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 04:12:22,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 04:12:22,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 04:12:22,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 04:12:22,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 04:12:22,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 04:12:22,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 04:12:22,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 04:12:22,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 04:12:22,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 04:12:22,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 04:12:22,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 04:12:22,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 04:12:22,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 04:12:22,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 04:12:22,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 04:12:22,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 04:12:22,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 04:12:22,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 04:12:22,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 04:12:22,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 04:12:22,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 04:12:22,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 04:12:22,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 04:12:22,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 04:12:22,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 04:12:22,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 04:12:22,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 04:12:22,804 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 04:12:22,837 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 04:12:22,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 04:12:22,838 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 04:12:22,838 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 04:12:22,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 04:12:22,839 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 04:12:22,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 04:12:22,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 04:12:22,840 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 04:12:22,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 04:12:22,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 04:12:22,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 04:12:22,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 04:12:22,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 04:12:22,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 04:12:22,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 04:12:22,841 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 04:12:22,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 04:12:22,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 04:12:22,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 04:12:22,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 04:12:22,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 04:12:22,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 04:12:22,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 04:12:22,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 04:12:22,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 04:12:22,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 04:12:22,843 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 04:12:22,843 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 04:12:22,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 04:12:22,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 04:12:22,843 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ba89c3eceb6ce3b33f7045e58fd9531469c7ed109a8240b2f15aad930b1478d [2021-12-18 04:12:23,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 04:12:23,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 04:12:23,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 04:12:23,088 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 04:12:23,088 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 04:12:23,089 INFO L432 ainManager$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 [2021-12-18 04:12:23,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24d4f25e5/d106a55c75f7468391b3a0c0eb2a6330/FLAG042bb45cf [2021-12-18 04:12:23,768 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 04:12:23,768 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 [2021-12-18 04:12:23,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24d4f25e5/d106a55c75f7468391b3a0c0eb2a6330/FLAG042bb45cf [2021-12-18 04:12:23,916 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24d4f25e5/d106a55c75f7468391b3a0c0eb2a6330 [2021-12-18 04:12:23,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 04:12:23,920 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 04:12:23,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 04:12:23,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 04:12:23,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 04:12:23,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:12:23" (1/1) ... [2021-12-18 04:12:23,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46571d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:23, skipping insertion in model container [2021-12-18 04:12:23,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:12:23" (1/1) ... [2021-12-18 04:12:23,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 04:12:24,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 04:12:24,649 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] [2021-12-18 04:12:25,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 04:12:25,321 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 04:12:25,401 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] [2021-12-18 04:12:25,568 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 04:12:25,780 INFO L208 MainTranslator]: Completed translation [2021-12-18 04:12:25,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:25 WrapperNode [2021-12-18 04:12:25,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 04:12:25,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 04:12:25,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 04:12:25,782 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 04:12:25,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:25" (1/1) ... [2021-12-18 04:12:25,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:25" (1/1) ... [2021-12-18 04:12:26,053 INFO L137 Inliner]: procedures = 347, calls = 3093, calls flagged for inlining = 175, calls inlined = 164, statements flattened = 6488 [2021-12-18 04:12:26,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 04:12:26,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 04:12:26,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 04:12:26,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 04:12:26,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:25" (1/1) ... [2021-12-18 04:12:26,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:25" (1/1) ... [2021-12-18 04:12:26,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:25" (1/1) ... [2021-12-18 04:12:26,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:25" (1/1) ... [2021-12-18 04:12:26,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:25" (1/1) ... [2021-12-18 04:12:26,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:25" (1/1) ... [2021-12-18 04:12:26,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:25" (1/1) ... [2021-12-18 04:12:26,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 04:12:26,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 04:12:26,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 04:12:26,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 04:12:26,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:25" (1/1) ... [2021-12-18 04:12:26,299 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 04:12:26,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:12:26,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 04:12:26,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 04:12:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_do_ioctl [2021-12-18 04:12:26,358 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_do_ioctl [2021-12-18 04:12:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_disable_cam_entry_post [2021-12-18 04:12:26,358 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_disable_cam_entry_post [2021-12-18 04:12:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 04:12:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 04:12:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 04:12:26,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 04:12:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_put [2021-12-18 04:12:26,359 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_put [2021-12-18 04:12:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_write [2021-12-18 04:12:26,359 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_write [2021-12-18 04:12:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 04:12:26,359 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 04:12:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_select_mii [2021-12-18 04:12:26,359 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_select_mii [2021-12-18 04:12:26,360 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_edmac [2021-12-18 04:12:26,360 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_edmac [2021-12-18 04:12:26,360 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_read [2021-12-18 04:12:26,360 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_read [2021-12-18 04:12:26,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 04:12:26,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 04:12:26,360 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_write [2021-12-18 04:12:26,360 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_write [2021-12-18 04:12:26,360 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-18 04:12:26,361 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2021-12-18 04:12:26,361 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2021-12-18 04:12:26,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-18 04:12:26,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-18 04:12:26,361 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_disable_cam_entry_table [2021-12-18 04:12:26,361 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_disable_cam_entry_table [2021-12-18 04:12:26,361 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-18 04:12:26,361 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-18 04:12:26,361 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_vtag_index [2021-12-18 04:12:26,362 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_vtag_index [2021-12-18 04:12:26,362 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_edtrr_trns [2021-12-18 04:12:26,362 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_edtrr_trns [2021-12-18 04:12:26,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 04:12:26,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 04:12:26,362 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_giga [2021-12-18 04:12:26,363 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_giga [2021-12-18 04:12:26,363 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-12-18 04:12:26,363 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-12-18 04:12:26,363 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 04:12:26,363 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 04:12:26,363 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 04:12:26,363 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 04:12:26,363 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap_resource [2021-12-18 04:12:26,363 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap_resource [2021-12-18 04:12:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 04:12:26,364 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 04:12:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure bb_clr [2021-12-18 04:12:26,364 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_clr [2021-12-18 04:12:26,364 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 04:12:26,364 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 04:12:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_get_sync [2021-12-18 04:12:26,365 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_get_sync [2021-12-18 04:12:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_duplex [2021-12-18 04:12:26,366 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_duplex [2021-12-18 04:12:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-18 04:12:26,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-18 04:12:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 04:12:26,366 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 04:12:26,367 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_post_reg_offset [2021-12-18 04:12:26,367 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_post_reg_offset [2021-12-18 04:12:26,367 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset_r8a7740 [2021-12-18 04:12:26,368 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset_r8a7740 [2021-12-18 04:12:26,368 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 04:12:26,368 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 04:12:26,368 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset_giga [2021-12-18 04:12:26,368 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset_giga [2021-12-18 04:12:26,368 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_free_dma_buffer [2021-12-18 04:12:26,368 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_free_dma_buffer [2021-12-18 04:12:26,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 04:12:26,369 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_busy [2021-12-18 04:12:26,369 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_busy [2021-12-18 04:12:26,369 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_r8a777x [2021-12-18 04:12:26,369 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_r8a777x [2021-12-18 04:12:26,369 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-18 04:12:26,369 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-18 04:12:26,369 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2021-12-18 04:12:26,370 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2021-12-18 04:12:26,370 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-18 04:12:26,370 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-18 04:12:26,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 04:12:26,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-12-18 04:12:26,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-12-18 04:12:26,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_12 [2021-12-18 04:12:26,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_12 [2021-12-18 04:12:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-18 04:12:26,371 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-18 04:12:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-18 04:12:26,371 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-18 04:12:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-18 04:12:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 04:12:26,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 04:12:26,372 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 04:12:26,372 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 04:12:26,372 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tx_timeout [2021-12-18 04:12:26,372 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tx_timeout [2021-12-18 04:12:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2021-12-18 04:12:26,373 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2021-12-18 04:12:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_runtime_nop [2021-12-18 04:12:26,373 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_runtime_nop [2021-12-18 04:12:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 04:12:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 04:12:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_ring_free [2021-12-18 04:12:26,374 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_ring_free [2021-12-18 04:12:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-18 04:12:26,374 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-18 04:12:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_open [2021-12-18 04:12:26,374 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_open [2021-12-18 04:12:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-18 04:12:26,374 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-18 04:12:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 04:12:26,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 04:12:26,375 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_multicast_list [2021-12-18 04:12:26,375 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_multicast_list [2021-12-18 04:12:26,376 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 04:12:26,377 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 04:12:26,377 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 04:12:26,377 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 04:12:26,377 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset [2021-12-18 04:12:26,379 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset [2021-12-18 04:12:26,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 04:12:26,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 04:12:26,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 04:12:26,379 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_put_sync [2021-12-18 04:12:26,382 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_put_sync [2021-12-18 04:12:26,383 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 04:12:26,383 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 04:12:26,383 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_read_entry [2021-12-18 04:12:26,383 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_read_entry [2021-12-18 04:12:26,383 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_txfree [2021-12-18 04:12:26,383 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_txfree [2021-12-18 04:12:26,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 04:12:26,383 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_start_xmit [2021-12-18 04:12:26,383 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_start_xmit [2021-12-18 04:12:26,383 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-12-18 04:12:26,384 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-12-18 04:12:26,384 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_rcv_snd_disable [2021-12-18 04:12:26,384 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_rcv_snd_disable [2021-12-18 04:12:26,384 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-18 04:12:26,384 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-18 04:12:26,384 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-18 04:12:26,384 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-18 04:12:26,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 04:12:26,384 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 04:12:26,384 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 04:12:26,385 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 04:12:26,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 04:12:26,385 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_close [2021-12-18 04:12:26,385 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_close [2021-12-18 04:12:26,385 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_read [2021-12-18 04:12:26,385 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_read [2021-12-18 04:12:26,385 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_soft_swap [2021-12-18 04:12:26,385 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_soft_swap [2021-12-18 04:12:26,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 04:12:26,385 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 04:12:26,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2021-12-18 04:12:26,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2021-12-18 04:12:26,386 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_is_rz_fast_ether [2021-12-18 04:12:26,386 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_is_rz_fast_ether [2021-12-18 04:12:26,386 INFO L130 BoogieDeclarations]: Found specification of procedure bb_set [2021-12-18 04:12:26,386 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_set [2021-12-18 04:12:26,386 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_find_entry [2021-12-18 04:12:26,386 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_find_entry [2021-12-18 04:12:26,386 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 04:12:26,386 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 04:12:26,386 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 04:12:26,387 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 04:12:26,387 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_dev_init [2021-12-18 04:12:26,387 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_dev_init [2021-12-18 04:12:26,387 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_stats [2021-12-18 04:12:26,387 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_stats [2021-12-18 04:12:26,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 04:12:26,387 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_vlan_rx_kill_vid [2021-12-18 04:12:26,387 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_vlan_rx_kill_vid [2021-12-18 04:12:26,387 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_sh7724 [2021-12-18 04:12:26,387 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_sh7724 [2021-12-18 04:12:26,388 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-18 04:12:26,388 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-18 04:12:26,388 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_disable [2021-12-18 04:12:26,388 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_disable [2021-12-18 04:12:26,388 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_adjust_link [2021-12-18 04:12:26,388 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_adjust_link [2021-12-18 04:12:26,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 04:12:26,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 04:12:26,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-12-18 04:12:26,388 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_vlan_rx_add_vid [2021-12-18 04:12:26,389 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_vlan_rx_add_vid [2021-12-18 04:12:26,389 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_ring_init [2021-12-18 04:12:26,389 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_ring_init [2021-12-18 04:12:26,390 INFO L130 BoogieDeclarations]: Found specification of procedure __pm_runtime_idle [2021-12-18 04:12:26,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __pm_runtime_idle [2021-12-18 04:12:26,390 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-12-18 04:12:26,390 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-12-18 04:12:26,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 04:12:26,390 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_purge_mcast [2021-12-18 04:12:26,390 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_purge_mcast [2021-12-18 04:12:26,390 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-18 04:12:26,390 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-18 04:12:26,390 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-18 04:12:26,391 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-18 04:12:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 04:12:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2021-12-18 04:12:26,391 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2021-12-18 04:12:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 04:12:26,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 04:12:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 04:12:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 04:12:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-18 04:12:26,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-18 04:12:26,392 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 04:12:26,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 04:12:26,392 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-12-18 04:12:26,392 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-12-18 04:12:26,392 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_register [2021-12-18 04:12:26,392 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_register [2021-12-18 04:12:26,392 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_is_gether [2021-12-18 04:12:26,392 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_is_gether [2021-12-18 04:12:26,392 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-18 04:12:26,392 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-18 04:12:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_sh7757 [2021-12-18 04:12:26,393 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_sh7757 [2021-12-18 04:12:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_receive_align [2021-12-18 04:12:26,393 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_receive_align [2021-12-18 04:12:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_rcv_snd_enable [2021-12-18 04:12:26,393 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_rcv_snd_enable [2021-12-18 04:12:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_offset [2021-12-18 04:12:26,393 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_offset [2021-12-18 04:12:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_gether [2021-12-18 04:12:26,393 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_gether [2021-12-18 04:12:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-18 04:12:26,394 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-18 04:12:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 04:12:26,394 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 04:12:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 04:12:26,394 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 04:12:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-18 04:12:26,394 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-18 04:12:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 04:12:26,394 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 04:12:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 04:12:26,395 INFO L130 BoogieDeclarations]: Found specification of procedure sh_mdio_release [2021-12-18 04:12:26,395 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_mdio_release [2021-12-18 04:12:26,397 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_write_entry [2021-12-18 04:12:26,397 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_write_entry [2021-12-18 04:12:26,398 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_post_bit [2021-12-18 04:12:26,398 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_post_bit [2021-12-18 04:12:26,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 04:12:26,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 04:12:26,398 INFO L130 BoogieDeclarations]: Found specification of procedure free_mdio_bitbang [2021-12-18 04:12:26,398 INFO L138 BoogieDeclarations]: Found implementation of procedure free_mdio_bitbang [2021-12-18 04:12:26,398 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-18 04:12:26,399 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-18 04:12:27,167 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 04:12:27,170 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 04:12:27,435 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 04:13:10,989 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 04:13:11,009 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 04:13:11,009 INFO L301 CfgBuilder]: Removed 9 assume(true) statements. [2021-12-18 04:13:11,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:13:11 BoogieIcfgContainer [2021-12-18 04:13:11,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 04:13:11,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 04:13:11,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 04:13:11,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 04:13:11,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 04:12:23" (1/3) ... [2021-12-18 04:13:11,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af0363f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:13:11, skipping insertion in model container [2021-12-18 04:13:11,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:12:25" (2/3) ... [2021-12-18 04:13:11,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af0363f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:13:11, skipping insertion in model container [2021-12-18 04:13:11,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:13:11" (3/3) ... [2021-12-18 04:13:11,018 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 [2021-12-18 04:13:11,025 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 04:13:11,025 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 04:13:11,070 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 04:13:11,085 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 04:13:11,085 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 04:13:11,137 INFO L276 IsEmpty]: Start isEmpty. Operand has 2349 states, 1612 states have (on average 1.369727047146402) internal successors, (2208), 1690 states have internal predecessors, (2208), 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) [2021-12-18 04:13:11,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-18 04:13:11,149 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:13:11,149 INFO L514 BasicCegarLoop]: 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] [2021-12-18 04:13:11,150 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:13:11,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:13:11,153 INFO L85 PathProgramCache]: Analyzing trace with hash -265393469, now seen corresponding path program 1 times [2021-12-18 04:13:11,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:13:11,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000795768] [2021-12-18 04:13:11,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:13:11,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:13:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:11,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:13:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:11,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:13:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:11,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:13:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:11,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:13:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:11,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:13:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:11,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:13:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:11,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:13:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:11,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:13:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:11,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:13:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:11,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 04:13:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:11,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:13:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:11,888 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-12-18 04:13:11,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:13:11,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000795768] [2021-12-18 04:13:11,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000795768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:13:11,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:13:11,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 04:13:11,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510589331] [2021-12-18 04:13:11,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:13:11,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 04:13:11,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:13:11,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 04:13:11,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:13:11,924 INFO L87 Difference]: Start difference. First operand has 2349 states, 1612 states have (on average 1.369727047146402) internal successors, (2208), 1690 states have internal predecessors, (2208), 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) [2021-12-18 04:13:13,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:13:16,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:13:18,026 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:13:28,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:13:28,580 INFO L93 Difference]: Finished difference Result 7576 states and 11447 transitions. [2021-12-18 04:13:28,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 04:13:28,583 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 [2021-12-18 04:13:28,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:13:28,627 INFO L225 Difference]: With dead ends: 7576 [2021-12-18 04:13:28,627 INFO L226 Difference]: Without dead ends: 5176 [2021-12-18 04:13:28,644 INFO L932 BasicCegarLoop]: 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 [2021-12-18 04:13:28,649 INFO L933 BasicCegarLoop]: 3484 mSDtfsCounter, 6183 mSDsluCounter, 5051 mSDsCounter, 0 mSdLazyCounter, 4031 mSolverCounterSat, 4277 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6577 SdHoareTripleChecker+Valid, 8535 SdHoareTripleChecker+Invalid, 8311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4277 IncrementalHoareTripleChecker+Valid, 4031 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:13:28,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6577 Valid, 8535 Invalid, 8311 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4277 Valid, 4031 Invalid, 3 Unknown, 0 Unchecked, 16.0s Time] [2021-12-18 04:13:28,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5176 states. [2021-12-18 04:13:28,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5176 to 4520. [2021-12-18 04:13:28,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4520 states, 3116 states have (on average 1.3568677792041077) internal successors, (4228), 3218 states have internal predecessors, (4228), 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) [2021-12-18 04:13:28,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4520 states to 4520 states and 6569 transitions. [2021-12-18 04:13:28,925 INFO L78 Accepts]: Start accepts. Automaton has 4520 states and 6569 transitions. Word has length 87 [2021-12-18 04:13:28,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:13:28,925 INFO L470 AbstractCegarLoop]: Abstraction has 4520 states and 6569 transitions. [2021-12-18 04:13:28,926 INFO L471 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) [2021-12-18 04:13:28,926 INFO L276 IsEmpty]: Start isEmpty. Operand 4520 states and 6569 transitions. [2021-12-18 04:13:28,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-18 04:13:28,934 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:13:28,935 INFO L514 BasicCegarLoop]: 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] [2021-12-18 04:13:28,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 04:13:28,935 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:13:28,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:13:28,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1374946843, now seen corresponding path program 1 times [2021-12-18 04:13:28,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:13:28,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727292191] [2021-12-18 04:13:28,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:13:28,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:13:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:29,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:13:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:29,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:13:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:29,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:13:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:29,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:13:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:29,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:13:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:29,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:13:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:29,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:13:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:29,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:13:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:29,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:13:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:29,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 04:13:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:29,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:13:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:29,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 04:13:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:29,396 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-12-18 04:13:29,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:13:29,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727292191] [2021-12-18 04:13:29,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727292191] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:13:29,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:13:29,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 04:13:29,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162641420] [2021-12-18 04:13:29,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:13:29,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 04:13:29,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:13:29,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 04:13:29,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 04:13:29,401 INFO L87 Difference]: Start difference. First operand 4520 states and 6569 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) [2021-12-18 04:13:31,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:13:33,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:13:45,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:13:45,893 INFO L93 Difference]: Finished difference Result 14789 states and 21998 transitions. [2021-12-18 04:13:45,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 04:13:45,894 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 [2021-12-18 04:13:45,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:13:45,962 INFO L225 Difference]: With dead ends: 14789 [2021-12-18 04:13:45,962 INFO L226 Difference]: Without dead ends: 10289 [2021-12-18 04:13:45,990 INFO L932 BasicCegarLoop]: 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 [2021-12-18 04:13:45,991 INFO L933 BasicCegarLoop]: 3702 mSDtfsCounter, 6030 mSDsluCounter, 11507 mSDsCounter, 0 mSdLazyCounter, 6682 mSolverCounterSat, 4077 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6431 SdHoareTripleChecker+Valid, 15209 SdHoareTripleChecker+Invalid, 10761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4077 IncrementalHoareTripleChecker+Valid, 6682 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2021-12-18 04:13:45,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6431 Valid, 15209 Invalid, 10761 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4077 Valid, 6682 Invalid, 2 Unknown, 0 Unchecked, 15.8s Time] [2021-12-18 04:13:46,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10289 states. [2021-12-18 04:13:46,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10289 to 9263. [2021-12-18 04:13:46,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9263 states, 6384 states have (on average 1.356986215538847) internal successors, (8663), 6606 states have internal predecessors, (8663), 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) [2021-12-18 04:13:46,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9263 states to 9263 states and 13611 transitions. [2021-12-18 04:13:46,460 INFO L78 Accepts]: Start accepts. Automaton has 9263 states and 13611 transitions. Word has length 97 [2021-12-18 04:13:46,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:13:46,461 INFO L470 AbstractCegarLoop]: Abstraction has 9263 states and 13611 transitions. [2021-12-18 04:13:46,462 INFO L471 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) [2021-12-18 04:13:46,462 INFO L276 IsEmpty]: Start isEmpty. Operand 9263 states and 13611 transitions. [2021-12-18 04:13:46,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-12-18 04:13:46,479 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:13:46,479 INFO L514 BasicCegarLoop]: 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] [2021-12-18 04:13:46,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 04:13:46,479 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:13:46,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:13:46,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1877791108, now seen corresponding path program 1 times [2021-12-18 04:13:46,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:13:46,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919895266] [2021-12-18 04:13:46,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:13:46,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:13:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:13:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:13:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:13:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:13:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:13:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:13:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:13:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:13:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:13:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 04:13:46,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:13:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 04:13:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 04:13:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:13:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 04:13:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:13:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:13:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:13:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 04:13:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 04:13:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 04:13:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:46,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 04:13:46,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:13:46,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919895266] [2021-12-18 04:13:46,992 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-12-18 04:13:46,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601172951] [2021-12-18 04:13:46,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:13:46,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:13:46,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:13:46,994 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:13:47,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 04:13:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:48,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 5303 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 04:13:48,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:13:48,369 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-12-18 04:13:48,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:13:48,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601172951] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:13:48,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:13:48,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 04:13:48,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552830301] [2021-12-18 04:13:48,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:13:48,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:13:48,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:13:48,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:13:48,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-18 04:13:48,371 INFO L87 Difference]: Start difference. First operand 9263 states and 13611 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) [2021-12-18 04:13:48,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:13:48,530 INFO L93 Difference]: Finished difference Result 18504 states and 27193 transitions. [2021-12-18 04:13:48,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:13:48,531 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 [2021-12-18 04:13:48,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:13:48,579 INFO L225 Difference]: With dead ends: 18504 [2021-12-18 04:13:48,579 INFO L226 Difference]: Without dead ends: 9267 [2021-12-18 04:13:48,614 INFO L932 BasicCegarLoop]: 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 [2021-12-18 04:13:48,615 INFO L933 BasicCegarLoop]: 3339 mSDtfsCounter, 0 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6673 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 [2021-12-18 04:13:48,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6673 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:13:48,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9267 states. [2021-12-18 04:13:48,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9267 to 9267. [2021-12-18 04:13:48,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9267 states, 6388 states have (on average 1.356762680025047) internal successors, (8667), 6610 states have internal predecessors, (8667), 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) [2021-12-18 04:13:48,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9267 states to 9267 states and 13615 transitions. [2021-12-18 04:13:48,905 INFO L78 Accepts]: Start accepts. Automaton has 9267 states and 13615 transitions. Word has length 218 [2021-12-18 04:13:48,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:13:48,906 INFO L470 AbstractCegarLoop]: Abstraction has 9267 states and 13615 transitions. [2021-12-18 04:13:48,906 INFO L471 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) [2021-12-18 04:13:48,906 INFO L276 IsEmpty]: Start isEmpty. Operand 9267 states and 13615 transitions. [2021-12-18 04:13:48,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-12-18 04:13:48,922 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:13:48,922 INFO L514 BasicCegarLoop]: 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] [2021-12-18 04:13:48,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 04:13:49,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:13:49,142 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:13:49,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:13:49,143 INFO L85 PathProgramCache]: Analyzing trace with hash 574700474, now seen corresponding path program 1 times [2021-12-18 04:13:49,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:13:49,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29424358] [2021-12-18 04:13:49,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:13:49,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:13:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:13:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:13:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:13:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:13:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:13:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:13:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:13:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:13:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:13:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 04:13:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:13:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 04:13:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 04:13:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:13:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 04:13:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:13:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:13:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:13:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 04:13:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 04:13:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 04:13:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:49,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 04:13:49,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:13:49,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29424358] [2021-12-18 04:13:49,541 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-12-18 04:13:49,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834968453] [2021-12-18 04:13:49,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:13:49,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:13:49,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:13:49,542 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:13:49,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 04:13:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:50,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 5306 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 04:13:50,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:13:50,940 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-12-18 04:13:50,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:13:50,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834968453] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:13:50,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:13:50,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 04:13:50,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033163036] [2021-12-18 04:13:50,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:13:50,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:13:50,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:13:50,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:13:50,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-18 04:13:50,942 INFO L87 Difference]: Start difference. First operand 9267 states and 13615 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) [2021-12-18 04:13:51,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:13:51,105 INFO L93 Difference]: Finished difference Result 18512 states and 27201 transitions. [2021-12-18 04:13:51,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:13:51,106 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 [2021-12-18 04:13:51,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:13:51,146 INFO L225 Difference]: With dead ends: 18512 [2021-12-18 04:13:51,147 INFO L226 Difference]: Without dead ends: 9271 [2021-12-18 04:13:51,177 INFO L932 BasicCegarLoop]: 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 [2021-12-18 04:13:51,178 INFO L933 BasicCegarLoop]: 3339 mSDtfsCounter, 0 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6673 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 [2021-12-18 04:13:51,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6673 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:13:51,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9271 states. [2021-12-18 04:13:51,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9271 to 9271. [2021-12-18 04:13:51,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9271 states, 6392 states have (on average 1.3565394242803503) internal successors, (8671), 6614 states have internal predecessors, (8671), 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) [2021-12-18 04:13:51,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9271 states to 9271 states and 13619 transitions. [2021-12-18 04:13:51,456 INFO L78 Accepts]: Start accepts. Automaton has 9271 states and 13619 transitions. Word has length 218 [2021-12-18 04:13:51,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:13:51,457 INFO L470 AbstractCegarLoop]: Abstraction has 9271 states and 13619 transitions. [2021-12-18 04:13:51,457 INFO L471 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) [2021-12-18 04:13:51,457 INFO L276 IsEmpty]: Start isEmpty. Operand 9271 states and 13619 transitions. [2021-12-18 04:13:51,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-12-18 04:13:51,473 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:13:51,473 INFO L514 BasicCegarLoop]: 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] [2021-12-18 04:13:51,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-18 04:13:51,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-18 04:13:51,688 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:13:51,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:13:51,688 INFO L85 PathProgramCache]: Analyzing trace with hash 242057336, now seen corresponding path program 1 times [2021-12-18 04:13:51,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:13:51,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255555032] [2021-12-18 04:13:51,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:13:51,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:13:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:51,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:13:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:51,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:13:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:51,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:13:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:51,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:13:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:51,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:13:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:51,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:13:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:51,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:13:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:51,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:13:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:51,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:13:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:51,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 04:13:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:51,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:13:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:51,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 04:13:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:51,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 04:13:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:51,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:13:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:52,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 04:13:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:52,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:13:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:52,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:13:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:52,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:13:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:52,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 04:13:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:52,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 04:13:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:52,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 04:13:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:52,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 04:13:52,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:13:52,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255555032] [2021-12-18 04:13:52,099 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-12-18 04:13:52,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191542983] [2021-12-18 04:13:52,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:13:52,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:13:52,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:13:52,100 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:13:52,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 04:13:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:53,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 5309 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 04:13:53,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:13:53,544 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2021-12-18 04:13:53,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:13:53,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191542983] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:13:53,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:13:53,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 04:13:53,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122135470] [2021-12-18 04:13:53,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:13:53,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:13:53,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:13:53,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:13:53,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-18 04:13:53,545 INFO L87 Difference]: Start difference. First operand 9271 states and 13619 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) [2021-12-18 04:13:53,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:13:53,940 INFO L93 Difference]: Finished difference Result 27129 states and 39801 transitions. [2021-12-18 04:13:53,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:13:53,941 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 [2021-12-18 04:13:53,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:13:54,012 INFO L225 Difference]: With dead ends: 27129 [2021-12-18 04:13:54,012 INFO L226 Difference]: Without dead ends: 17884 [2021-12-18 04:13:54,047 INFO L932 BasicCegarLoop]: 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 [2021-12-18 04:13:54,050 INFO L933 BasicCegarLoop]: 3878 mSDtfsCounter, 3062 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3062 SdHoareTripleChecker+Valid, 7145 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 04:13:54,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3062 Valid, 7145 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 04:13:54,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17884 states. [2021-12-18 04:13:54,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17884 to 17871. [2021-12-18 04:13:54,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17871 states, 12288 states have (on average 1.353271484375) internal successors, (16629), 12730 states have internal predecessors, (16629), 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) [2021-12-18 04:13:54,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17871 states to 17871 states and 26163 transitions. [2021-12-18 04:13:54,586 INFO L78 Accepts]: Start accepts. Automaton has 17871 states and 26163 transitions. Word has length 218 [2021-12-18 04:13:54,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:13:54,586 INFO L470 AbstractCegarLoop]: Abstraction has 17871 states and 26163 transitions. [2021-12-18 04:13:54,586 INFO L471 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) [2021-12-18 04:13:54,586 INFO L276 IsEmpty]: Start isEmpty. Operand 17871 states and 26163 transitions. [2021-12-18 04:13:54,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-12-18 04:13:54,606 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:13:54,606 INFO L514 BasicCegarLoop]: 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] [2021-12-18 04:13:54,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 04:13:54,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:13:54,816 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:13:54,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:13:54,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1713027884, now seen corresponding path program 1 times [2021-12-18 04:13:54,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:13:54,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762154371] [2021-12-18 04:13:54,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:13:54,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:13:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:13:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:13:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:13:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:13:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:13:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:13:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:13:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:13:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:13:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 04:13:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:13:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 04:13:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:13:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:13:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:13:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:13:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:13:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 04:13:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 04:13:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:13:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 04:13:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:13:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:13:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:13:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 04:13:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:13:55,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:13:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 04:13:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:13:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:13:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 04:13:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:13:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:13:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-18 04:13:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:13:55,423 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-12-18 04:13:55,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:13:55,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762154371] [2021-12-18 04:13:55,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762154371] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:13:55,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:13:55,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-18 04:13:55,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253935706] [2021-12-18 04:13:55,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:13:55,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-18 04:13:55,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:13:55,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-18 04:13:55,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-18 04:13:55,425 INFO L87 Difference]: Start difference. First operand 17871 states and 26163 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) [2021-12-18 04:13:57,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:13:59,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:14:08,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:14:08,894 INFO L93 Difference]: Finished difference Result 37224 states and 55131 transitions. [2021-12-18 04:14:08,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-18 04:14:08,895 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 [2021-12-18 04:14:08,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:14:09,081 INFO L225 Difference]: With dead ends: 37224 [2021-12-18 04:14:09,081 INFO L226 Difference]: Without dead ends: 19379 [2021-12-18 04:14:09,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=402, Unknown=0, NotChecked=0, Total=552 [2021-12-18 04:14:09,127 INFO L933 BasicCegarLoop]: 2872 mSDtfsCounter, 6138 mSDsluCounter, 15685 mSDsCounter, 0 mSdLazyCounter, 8383 mSolverCounterSat, 4275 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6514 SdHoareTripleChecker+Valid, 18557 SdHoareTripleChecker+Invalid, 12660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4275 IncrementalHoareTripleChecker+Valid, 8383 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-12-18 04:14:09,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6514 Valid, 18557 Invalid, 12660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4275 Valid, 8383 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2021-12-18 04:14:09,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19379 states. [2021-12-18 04:14:09,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19379 to 17279. [2021-12-18 04:14:09,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17279 states, 11840 states have (on average 1.3423141891891892) internal successors, (15893), 12278 states have internal predecessors, (15893), 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) [2021-12-18 04:14:09,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17279 states to 17279 states and 25119 transitions. [2021-12-18 04:14:09,726 INFO L78 Accepts]: Start accepts. Automaton has 17279 states and 25119 transitions. Word has length 262 [2021-12-18 04:14:09,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:14:09,727 INFO L470 AbstractCegarLoop]: Abstraction has 17279 states and 25119 transitions. [2021-12-18 04:14:09,727 INFO L471 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) [2021-12-18 04:14:09,727 INFO L276 IsEmpty]: Start isEmpty. Operand 17279 states and 25119 transitions. [2021-12-18 04:14:09,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-12-18 04:14:09,744 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:14:09,744 INFO L514 BasicCegarLoop]: 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] [2021-12-18 04:14:09,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 04:14:09,745 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:14:09,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:14:09,746 INFO L85 PathProgramCache]: Analyzing trace with hash 438705357, now seen corresponding path program 1 times [2021-12-18 04:14:09,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:14:09,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895437032] [2021-12-18 04:14:09,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:14:09,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:14:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:09,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:14:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:09,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:14:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:09,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:14:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:09,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:14:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:09,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:14:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:09,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:14:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:09,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:14:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:09,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:14:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:09,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:14:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 04:14:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:14:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 04:14:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:14:10,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:14:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:14:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:14:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:14:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 04:14:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:14:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:14:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:14:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:14:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:14:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:14:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:14:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 04:14:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:14:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:14:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 04:14:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:14:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:14:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 04:14:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:14:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:14:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 04:14:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:10,231 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2021-12-18 04:14:10,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:14:10,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895437032] [2021-12-18 04:14:10,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895437032] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:14:10,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:14:10,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 04:14:10,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245313509] [2021-12-18 04:14:10,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:14:10,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 04:14:10,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:14:10,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 04:14:10,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-18 04:14:10,233 INFO L87 Difference]: Start difference. First operand 17279 states and 25119 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) [2021-12-18 04:14:12,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:14:14,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:14:16,327 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 [] [2021-12-18 04:14:26,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:14:26,959 INFO L93 Difference]: Finished difference Result 52129 states and 77090 transitions. [2021-12-18 04:14:26,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 04:14:26,960 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 [2021-12-18 04:14:26,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:14:27,091 INFO L225 Difference]: With dead ends: 52129 [2021-12-18 04:14:27,091 INFO L226 Difference]: Without dead ends: 34876 [2021-12-18 04:14:27,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-12-18 04:14:27,144 INFO L933 BasicCegarLoop]: 3320 mSDtfsCounter, 6630 mSDsluCounter, 7955 mSDsCounter, 0 mSdLazyCounter, 6761 mSolverCounterSat, 5085 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7181 SdHoareTripleChecker+Valid, 11275 SdHoareTripleChecker+Invalid, 11849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5085 IncrementalHoareTripleChecker+Valid, 6761 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2021-12-18 04:14:27,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7181 Valid, 11275 Invalid, 11849 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5085 Valid, 6761 Invalid, 3 Unknown, 0 Unchecked, 15.6s Time] [2021-12-18 04:14:27,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34876 states. [2021-12-18 04:14:28,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34876 to 30939. [2021-12-18 04:14:28,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30939 states, 21238 states have (on average 1.3441943685846125) internal successors, (28548), 22098 states have internal predecessors, (28548), 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) [2021-12-18 04:14:28,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30939 states to 30939 states and 44927 transitions. [2021-12-18 04:14:28,390 INFO L78 Accepts]: Start accepts. Automaton has 30939 states and 44927 transitions. Word has length 267 [2021-12-18 04:14:28,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:14:28,390 INFO L470 AbstractCegarLoop]: Abstraction has 30939 states and 44927 transitions. [2021-12-18 04:14:28,390 INFO L471 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) [2021-12-18 04:14:28,390 INFO L276 IsEmpty]: Start isEmpty. Operand 30939 states and 44927 transitions. [2021-12-18 04:14:28,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-12-18 04:14:28,408 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:14:28,409 INFO L514 BasicCegarLoop]: 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] [2021-12-18 04:14:28,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 04:14:28,409 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:14:28,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:14:28,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1028049928, now seen corresponding path program 1 times [2021-12-18 04:14:28,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:14:28,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996010228] [2021-12-18 04:14:28,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:14:28,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:14:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:14:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:14:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:14:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:14:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:14:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 04:14:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 04:14:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:14:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:14:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 04:14:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:14:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 04:14:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:14:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:14:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:14:28,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:14:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:14:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:14:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 04:14:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:14:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 04:14:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:14:28,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:14:28,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:14:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:14:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 04:14:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 04:14:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:14:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:14:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 04:14:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:14:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:14:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 04:14:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:14:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:14:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-18 04:14:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 04:14:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:28,820 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2021-12-18 04:14:28,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:14:28,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996010228] [2021-12-18 04:14:28,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996010228] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:14:28,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:14:28,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 04:14:28,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100588723] [2021-12-18 04:14:28,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:14:28,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 04:14:28,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:14:28,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 04:14:28,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-18 04:14:28,823 INFO L87 Difference]: Start difference. First operand 30939 states and 44927 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) [2021-12-18 04:14:30,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:14:32,912 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 [] [2021-12-18 04:14:42,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:14:42,646 INFO L93 Difference]: Finished difference Result 99533 states and 146288 transitions. [2021-12-18 04:14:42,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 04:14:42,647 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 [2021-12-18 04:14:42,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:14:43,099 INFO L225 Difference]: With dead ends: 99533 [2021-12-18 04:14:43,099 INFO L226 Difference]: Without dead ends: 68620 [2021-12-18 04:14:43,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-12-18 04:14:43,186 INFO L933 BasicCegarLoop]: 3469 mSDtfsCounter, 6236 mSDsluCounter, 4719 mSDsCounter, 0 mSdLazyCounter, 4458 mSolverCounterSat, 3960 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6841 SdHoareTripleChecker+Valid, 8188 SdHoareTripleChecker+Invalid, 8420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3960 IncrementalHoareTripleChecker+Valid, 4458 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:14:43,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6841 Valid, 8188 Invalid, 8420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3960 Valid, 4458 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2021-12-18 04:14:43,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68620 states. [2021-12-18 04:14:45,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68620 to 60819. [2021-12-18 04:14:45,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60819 states, 41738 states have (on average 1.3440989026786143) internal successors, (56100), 43462 states have internal predecessors, (56100), 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) [2021-12-18 04:14:45,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60819 states to 60819 states and 88201 transitions. [2021-12-18 04:14:45,627 INFO L78 Accepts]: Start accepts. Automaton has 60819 states and 88201 transitions. Word has length 260 [2021-12-18 04:14:45,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:14:45,628 INFO L470 AbstractCegarLoop]: Abstraction has 60819 states and 88201 transitions. [2021-12-18 04:14:45,628 INFO L471 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) [2021-12-18 04:14:45,628 INFO L276 IsEmpty]: Start isEmpty. Operand 60819 states and 88201 transitions. [2021-12-18 04:14:45,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-12-18 04:14:45,670 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:14:45,671 INFO L514 BasicCegarLoop]: 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] [2021-12-18 04:14:45,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 04:14:45,671 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:14:45,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:14:45,672 INFO L85 PathProgramCache]: Analyzing trace with hash 337576721, now seen corresponding path program 1 times [2021-12-18 04:14:45,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:14:45,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500852259] [2021-12-18 04:14:45,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:14:45,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:14:45,790 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:14:45,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [491580626] [2021-12-18 04:14:45,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:14:45,791 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:14:45,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:14:45,792 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:14:45,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 04:14:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:47,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 5838 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 04:14:47,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:14:47,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2021-12-18 04:14:47,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:14:47,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:14:47,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500852259] [2021-12-18 04:14:47,589 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:14:47,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491580626] [2021-12-18 04:14:47,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491580626] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:14:47,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:14:47,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 04:14:47,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998542503] [2021-12-18 04:14:47,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:14:47,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 04:14:47,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:14:47,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 04:14:47,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 04:14:47,591 INFO L87 Difference]: Start difference. First operand 60819 states and 88201 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) [2021-12-18 04:14:49,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:14:49,245 INFO L93 Difference]: Finished difference Result 121660 states and 176429 transitions. [2021-12-18 04:14:49,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 04:14:49,246 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 [2021-12-18 04:14:49,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:14:49,614 INFO L225 Difference]: With dead ends: 121660 [2021-12-18 04:14:49,614 INFO L226 Difference]: Without dead ends: 60867 [2021-12-18 04:14:49,740 INFO L932 BasicCegarLoop]: 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 [2021-12-18 04:14:49,740 INFO L933 BasicCegarLoop]: 3202 mSDtfsCounter, 3 mSDsluCounter, 6397 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 9599 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 [2021-12-18 04:14:49,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 9599 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:14:49,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60867 states. [2021-12-18 04:14:51,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60867 to 60851. [2021-12-18 04:14:51,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60851 states, 41770 states have (on average 1.3438352884845584) internal successors, (56132), 43494 states have internal predecessors, (56132), 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) [2021-12-18 04:14:51,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60851 states to 60851 states and 88233 transitions. [2021-12-18 04:14:51,908 INFO L78 Accepts]: Start accepts. Automaton has 60851 states and 88233 transitions. Word has length 328 [2021-12-18 04:14:51,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:14:51,909 INFO L470 AbstractCegarLoop]: Abstraction has 60851 states and 88233 transitions. [2021-12-18 04:14:51,909 INFO L471 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) [2021-12-18 04:14:51,909 INFO L276 IsEmpty]: Start isEmpty. Operand 60851 states and 88233 transitions. [2021-12-18 04:14:51,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-12-18 04:14:51,946 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:14:51,946 INFO L514 BasicCegarLoop]: 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] [2021-12-18 04:14:51,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-18 04:14:52,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:14:52,172 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:14:52,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:14:52,172 INFO L85 PathProgramCache]: Analyzing trace with hash 808933071, now seen corresponding path program 1 times [2021-12-18 04:14:52,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:14:52,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300424064] [2021-12-18 04:14:52,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:14:52,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:14:52,285 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:14:52,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1621873675] [2021-12-18 04:14:52,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:14:52,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:14:52,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:14:52,287 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:14:52,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-18 04:14:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:14:53,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 5841 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-18 04:14:53,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:14:54,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 560 proven. 5 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2021-12-18 04:14:54,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 04:14:54,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2021-12-18 04:14:54,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:14:54,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300424064] [2021-12-18 04:14:54,983 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:14:54,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621873675] [2021-12-18 04:14:54,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621873675] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-18 04:14:54,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 04:14:54,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2021-12-18 04:14:54,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814825079] [2021-12-18 04:14:54,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:14:54,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 04:14:54,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:14:54,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 04:14:54,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 04:14:54,985 INFO L87 Difference]: Start difference. First operand 60851 states and 88233 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) [2021-12-18 04:14:57,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:15:04,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:15:04,803 INFO L93 Difference]: Finished difference Result 128300 states and 187465 transitions. [2021-12-18 04:15:04,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 04:15:04,804 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 [2021-12-18 04:15:04,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:15:05,227 INFO L225 Difference]: With dead ends: 128300 [2021-12-18 04:15:05,227 INFO L226 Difference]: Without dead ends: 67251 [2021-12-18 04:15:05,379 INFO L932 BasicCegarLoop]: 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 [2021-12-18 04:15:05,380 INFO L933 BasicCegarLoop]: 3896 mSDtfsCounter, 4775 mSDsluCounter, 4377 mSDsCounter, 0 mSdLazyCounter, 5282 mSolverCounterSat, 802 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5212 SdHoareTripleChecker+Valid, 8273 SdHoareTripleChecker+Invalid, 6085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 802 IncrementalHoareTripleChecker+Valid, 5282 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-12-18 04:15:05,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5212 Valid, 8273 Invalid, 6085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [802 Valid, 5282 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2021-12-18 04:15:05,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67251 states. [2021-12-18 04:15:07,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67251 to 64579. [2021-12-18 04:15:07,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64579 states, 44138 states have (on average 1.3373510353890072) internal successors, (59028), 46038 states have internal predecessors, (59028), 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) [2021-12-18 04:15:07,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64579 states to 64579 states and 93803 transitions. [2021-12-18 04:15:07,610 INFO L78 Accepts]: Start accepts. Automaton has 64579 states and 93803 transitions. Word has length 328 [2021-12-18 04:15:07,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:15:07,611 INFO L470 AbstractCegarLoop]: Abstraction has 64579 states and 93803 transitions. [2021-12-18 04:15:07,611 INFO L471 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) [2021-12-18 04:15:07,611 INFO L276 IsEmpty]: Start isEmpty. Operand 64579 states and 93803 transitions. [2021-12-18 04:15:07,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 681 [2021-12-18 04:15:07,729 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:15:07,729 INFO L514 BasicCegarLoop]: 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] [2021-12-18 04:15:07,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-18 04:15:07,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-18 04:15:07,931 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:15:07,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:15:07,931 INFO L85 PathProgramCache]: Analyzing trace with hash -2143708692, now seen corresponding path program 1 times [2021-12-18 04:15:07,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:15:07,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737586593] [2021-12-18 04:15:07,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:15:07,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:15:08,052 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:15:08,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1831751789] [2021-12-18 04:15:08,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:15:08,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:15:08,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:15:08,054 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:15:08,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-18 04:15:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:15:09,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 7784 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 04:15:09,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:15:10,538 INFO L134 CoverageAnalysis]: Checked inductivity of 3159 backedges. 790 proven. 0 refuted. 0 times theorem prover too weak. 2369 trivial. 0 not checked. [2021-12-18 04:15:10,538 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:15:10,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:15:10,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737586593] [2021-12-18 04:15:10,538 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:15:10,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831751789] [2021-12-18 04:15:10,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831751789] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:15:10,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:15:10,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 04:15:10,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805495185] [2021-12-18 04:15:10,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:15:10,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:15:10,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:15:10,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:15:10,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:15:10,540 INFO L87 Difference]: Start difference. First operand 64579 states and 93803 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2021-12-18 04:15:12,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:15:12,434 INFO L93 Difference]: Finished difference Result 138092 states and 203313 transitions. [2021-12-18 04:15:12,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:15:12,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 680 [2021-12-18 04:15:12,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:15:12,769 INFO L225 Difference]: With dead ends: 138092 [2021-12-18 04:15:12,769 INFO L226 Difference]: Without dead ends: 73539 [2021-12-18 04:15:13,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 678 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:15:13,120 INFO L933 BasicCegarLoop]: 3265 mSDtfsCounter, 119 mSDsluCounter, 3199 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 6464 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:15:13,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 6464 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:15:13,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73539 states. [2021-12-18 04:15:15,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73539 to 64611. [2021-12-18 04:15:15,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64611 states, 44170 states have (on average 1.3371066334616255) internal successors, (59060), 46070 states have internal predecessors, (59060), 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) [2021-12-18 04:15:15,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64611 states to 64611 states and 93835 transitions. [2021-12-18 04:15:15,657 INFO L78 Accepts]: Start accepts. Automaton has 64611 states and 93835 transitions. Word has length 680 [2021-12-18 04:15:15,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:15:15,658 INFO L470 AbstractCegarLoop]: Abstraction has 64611 states and 93835 transitions. [2021-12-18 04:15:15,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2021-12-18 04:15:15,659 INFO L276 IsEmpty]: Start isEmpty. Operand 64611 states and 93835 transitions. [2021-12-18 04:15:15,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 681 [2021-12-18 04:15:15,775 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:15:15,775 INFO L514 BasicCegarLoop]: 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] [2021-12-18 04:15:15,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-18 04:15:15,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:15:15,976 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:15:15,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:15:15,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1114536854, now seen corresponding path program 1 times [2021-12-18 04:15:15,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:15:15,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559530378] [2021-12-18 04:15:15,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:15:15,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:15:16,096 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:15:16,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [785205325] [2021-12-18 04:15:16,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:15:16,097 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:15:16,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:15:16,098 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:15:16,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-18 04:15:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:15:17,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 7786 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 04:15:17,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:15:18,477 INFO L134 CoverageAnalysis]: Checked inductivity of 3159 backedges. 790 proven. 0 refuted. 0 times theorem prover too weak. 2369 trivial. 0 not checked. [2021-12-18 04:15:18,478 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:15:18,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:15:18,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559530378] [2021-12-18 04:15:18,478 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:15:18,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785205325] [2021-12-18 04:15:18,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785205325] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:15:18,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:15:18,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 04:15:18,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631146609] [2021-12-18 04:15:18,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:15:18,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:15:18,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:15:18,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:15:18,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:15:18,479 INFO L87 Difference]: Start difference. First operand 64611 states and 93835 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2021-12-18 04:15:20,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:15:20,726 INFO L93 Difference]: Finished difference Result 138348 states and 203697 transitions. [2021-12-18 04:15:20,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:15:20,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 680 [2021-12-18 04:15:20,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:15:21,060 INFO L225 Difference]: With dead ends: 138348 [2021-12-18 04:15:21,061 INFO L226 Difference]: Without dead ends: 73763 [2021-12-18 04:15:21,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 678 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:15:21,253 INFO L933 BasicCegarLoop]: 3364 mSDtfsCounter, 123 mSDsluCounter, 3233 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 6597 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 [2021-12-18 04:15:21,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 6597 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:15:21,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73763 states. [2021-12-18 04:15:23,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73763 to 64771. [2021-12-18 04:15:23,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64771 states, 44298 states have (on average 1.3368549370174725) internal successors, (59220), 46198 states have internal predecessors, (59220), 16880 states have call successors, (16880), 3345 states have call predecessors, (16880), 3592 states have return successors, (17959), 16131 states have call predecessors, (17959), 16879 states have call successors, (17959) [2021-12-18 04:15:23,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64771 states to 64771 states and 94059 transitions. [2021-12-18 04:15:23,995 INFO L78 Accepts]: Start accepts. Automaton has 64771 states and 94059 transitions. Word has length 680 [2021-12-18 04:15:23,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:15:23,996 INFO L470 AbstractCegarLoop]: Abstraction has 64771 states and 94059 transitions. [2021-12-18 04:15:23,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2021-12-18 04:15:23,996 INFO L276 IsEmpty]: Start isEmpty. Operand 64771 states and 94059 transitions. [2021-12-18 04:15:24,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2021-12-18 04:15:24,111 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:15:24,112 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 25, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1] [2021-12-18 04:15:24,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-18 04:15:24,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:15:24,340 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:15:24,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:15:24,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1797573781, now seen corresponding path program 1 times [2021-12-18 04:15:24,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:15:24,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436518927] [2021-12-18 04:15:24,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:15:24,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:15:24,461 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:15:24,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [825238364] [2021-12-18 04:15:24,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:15:24,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:15:24,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:15:24,462 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:15:24,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-18 04:15:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:15:26,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 7864 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-18 04:15:26,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:15:26,949 INFO L134 CoverageAnalysis]: Checked inductivity of 3261 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 2937 trivial. 0 not checked. [2021-12-18 04:15:26,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:15:26,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:15:26,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436518927] [2021-12-18 04:15:26,949 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:15:26,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825238364] [2021-12-18 04:15:26,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825238364] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:15:26,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:15:26,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 04:15:26,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517890688] [2021-12-18 04:15:26,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:15:26,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 04:15:26,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:15:26,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 04:15:26,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:15:26,951 INFO L87 Difference]: Start difference. First operand 64771 states and 94059 transitions. Second operand has 5 states, 5 states have (on average 50.0) internal successors, (250), 4 states have internal predecessors, (250), 2 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (74), 3 states have call predecessors, (74), 2 states have call successors, (74) [2021-12-18 04:15:29,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:15:29,180 INFO L93 Difference]: Finished difference Result 146835 states and 216054 transitions. [2021-12-18 04:15:29,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 04:15:29,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 4 states have internal predecessors, (250), 2 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (74), 3 states have call predecessors, (74), 2 states have call successors, (74) Word has length 700 [2021-12-18 04:15:29,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:15:29,504 INFO L225 Difference]: With dead ends: 146835 [2021-12-18 04:15:29,504 INFO L226 Difference]: Without dead ends: 82090 [2021-12-18 04:15:29,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 699 GetRequests, 696 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:15:29,706 INFO L933 BasicCegarLoop]: 4311 mSDtfsCounter, 771 mSDsluCounter, 11986 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 16297 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:15:29,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [941 Valid, 16297 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:15:29,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82090 states. [2021-12-18 04:15:32,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82090 to 64835. [2021-12-18 04:15:32,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64835 states, 44346 states have (on average 1.33649032607225) internal successors, (59268), 46246 states have internal predecessors, (59268), 16880 states have call successors, (16880), 3345 states have call predecessors, (16880), 3608 states have return successors, (17983), 16147 states have call predecessors, (17983), 16879 states have call successors, (17983) [2021-12-18 04:15:32,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64835 states to 64835 states and 94131 transitions. [2021-12-18 04:15:32,455 INFO L78 Accepts]: Start accepts. Automaton has 64835 states and 94131 transitions. Word has length 700 [2021-12-18 04:15:32,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:15:32,456 INFO L470 AbstractCegarLoop]: Abstraction has 64835 states and 94131 transitions. [2021-12-18 04:15:32,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 4 states have internal predecessors, (250), 2 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (74), 3 states have call predecessors, (74), 2 states have call successors, (74) [2021-12-18 04:15:32,456 INFO L276 IsEmpty]: Start isEmpty. Operand 64835 states and 94131 transitions. [2021-12-18 04:15:32,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2021-12-18 04:15:32,569 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:15:32,569 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 25, 25, 25, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:15:32,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-18 04:15:32,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-18 04:15:32,778 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:15:32,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:15:32,778 INFO L85 PathProgramCache]: Analyzing trace with hash 982629880, now seen corresponding path program 1 times [2021-12-18 04:15:32,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:15:32,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915521609] [2021-12-18 04:15:32,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:15:32,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:15:32,908 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:15:32,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1202147178] [2021-12-18 04:15:32,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:15:32,909 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:15:32,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:15:32,910 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:15:32,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-18 04:15:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:15:34,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 8057 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-18 04:15:34,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:15:35,543 INFO L134 CoverageAnalysis]: Checked inductivity of 3368 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 2978 trivial. 0 not checked. [2021-12-18 04:15:35,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:15:35,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:15:35,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915521609] [2021-12-18 04:15:35,544 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:15:35,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202147178] [2021-12-18 04:15:35,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202147178] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:15:35,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:15:35,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 04:15:35,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878466305] [2021-12-18 04:15:35,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:15:35,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 04:15:35,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:15:35,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 04:15:35,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:15:35,546 INFO L87 Difference]: Start difference. First operand 64835 states and 94131 transitions. Second operand has 6 states, 6 states have (on average 42.166666666666664) internal successors, (253), 5 states have internal predecessors, (253), 3 states have call successors, (77), 2 states have call predecessors, (77), 3 states have return successors, (76), 4 states have call predecessors, (76), 3 states have call successors, (76)