./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.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 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 17:33:58,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 17:33:58,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 17:33:58,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 17:33:58,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 17:33:58,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 17:33:58,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 17:33:58,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 17:33:58,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 17:33:58,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 17:33:58,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 17:33:58,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 17:33:58,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 17:33:58,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 17:33:58,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 17:33:58,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 17:33:58,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 17:33:58,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 17:33:58,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 17:33:58,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 17:33:58,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 17:33:58,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 17:33:58,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 17:33:58,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 17:33:58,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 17:33:58,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 17:33:58,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 17:33:58,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 17:33:58,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 17:33:58,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 17:33:58,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 17:33:58,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 17:33:58,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 17:33:58,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 17:33:58,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 17:33:58,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 17:33:58,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 17:33:58,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 17:33:58,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 17:33:58,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 17:33:58,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 17:33:58,716 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 17:33:58,735 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 17:33:58,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 17:33:58,737 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 17:33:58,738 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 17:33:58,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 17:33:58,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 17:33:58,739 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 17:33:58,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 17:33:58,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 17:33:58,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 17:33:58,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 17:33:58,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 17:33:58,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 17:33:58,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 17:33:58,740 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 17:33:58,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 17:33:58,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 17:33:58,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 17:33:58,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 17:33:58,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:33:58,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 17:33:58,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 17:33:58,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 17:33:58,742 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 17:33:58,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 17:33:58,742 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 17:33:58,742 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 17:33:58,743 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 17:33:58,743 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 17:33:58,743 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 [2021-11-06 17:33:58,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 17:33:58,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 17:33:58,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 17:33:58,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 17:33:58,936 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 17:33:58,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2021-11-06 17:33:59,005 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bdf377bb/bdfc420a0bab4c2e984021ff5f8bdab1/FLAGbd8dcab0d [2021-11-06 17:33:59,630 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 17:33:59,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2021-11-06 17:33:59,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bdf377bb/bdfc420a0bab4c2e984021ff5f8bdab1/FLAGbd8dcab0d [2021-11-06 17:33:59,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bdf377bb/bdfc420a0bab4c2e984021ff5f8bdab1 [2021-11-06 17:33:59,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 17:33:59,977 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 17:33:59,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 17:33:59,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 17:33:59,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 17:33:59,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:33:59" (1/1) ... [2021-11-06 17:33:59,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7304c7ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:33:59, skipping insertion in model container [2021-11-06 17:33:59,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:33:59" (1/1) ... [2021-11-06 17:33:59,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 17:34:00,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 17:34:01,198 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i[287455,287468] [2021-11-06 17:34:01,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:34:01,259 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 17:34:01,610 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i[287455,287468] [2021-11-06 17:34:01,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:34:01,683 INFO L208 MainTranslator]: Completed translation [2021-11-06 17:34:01,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:34:01 WrapperNode [2021-11-06 17:34:01,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 17:34:01,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 17:34:01,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 17:34:01,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 17:34:01,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:34:01" (1/1) ... [2021-11-06 17:34:01,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:34:01" (1/1) ... [2021-11-06 17:34:06,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 17:34:06,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 17:34:06,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 17:34:06,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 17:34:06,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:34:01" (1/1) ... [2021-11-06 17:34:06,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:34:01" (1/1) ... [2021-11-06 17:34:07,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:34:01" (1/1) ... [2021-11-06 17:34:07,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:34:01" (1/1) ... [2021-11-06 17:34:08,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:34:01" (1/1) ... [2021-11-06 17:34:08,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:34:01" (1/1) ... [2021-11-06 17:34:09,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:34:01" (1/1) ... [2021-11-06 17:34:09,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 17:34:09,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 17:34:09,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 17:34:09,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 17:34:09,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:34:01" (1/1) ... [2021-11-06 17:34:09,656 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:34:09,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:34:09,674 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) [2021-11-06 17:34:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2021-11-06 17:34:09,705 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2021-11-06 17:34:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 17:34:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 17:34:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2021-11-06 17:34:09,706 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2021-11-06 17:34:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 17:34:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2021-11-06 17:34:09,706 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2021-11-06 17:34:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 17:34:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 17:34:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 17:34:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 17:34:09,691 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 [2021-11-06 17:34:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 17:34:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 17:34:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 17:34:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2021-11-06 17:34:09,712 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2021-11-06 17:34:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 17:34:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 17:34:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 17:34:09,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 17:34:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 17:34:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 17:34:09,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 17:34:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 17:34:09,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 17:34:45,449 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 17:34:45,449 INFO L299 CfgBuilder]: Removed 32562 assume(true) statements. [2021-11-06 17:34:45,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:34:45 BoogieIcfgContainer [2021-11-06 17:34:45,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 17:34:45,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 17:34:45,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 17:34:45,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 17:34:45,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 05:33:59" (1/3) ... [2021-11-06 17:34:45,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2656d0b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:34:45, skipping insertion in model container [2021-11-06 17:34:45,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:34:01" (2/3) ... [2021-11-06 17:34:45,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2656d0b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:34:45, skipping insertion in model container [2021-11-06 17:34:45,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:34:45" (3/3) ... [2021-11-06 17:34:45,477 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2021-11-06 17:34:45,481 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 17:34:45,481 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2021-11-06 17:34:45,577 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 17:34:45,580 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 [2021-11-06 17:34:45,581 INFO L340 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2021-11-06 17:34:45,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 24916 states, 24843 states have (on average 1.2467093346214226) internal successors, (30972), 24877 states have internal predecessors, (30972), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-11-06 17:34:45,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-06 17:34:45,962 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:34:45,962 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:34:45,963 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-06 17:34:45,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:34:45,966 INFO L85 PathProgramCache]: Analyzing trace with hash 150014610, now seen corresponding path program 1 times [2021-11-06 17:34:45,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:34:45,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589311906] [2021-11-06 17:34:45,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:34:45,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:34:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:34:46,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:34:46,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:34:46,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589311906] [2021-11-06 17:34:46,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589311906] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:34:46,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:34:46,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:34:46,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739347463] [2021-11-06 17:34:46,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 17:34:46,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:34:46,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 17:34:46,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:34:46,501 INFO L87 Difference]: Start difference. First operand has 24916 states, 24843 states have (on average 1.2467093346214226) internal successors, (30972), 24877 states have internal predecessors, (30972), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:34:47,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:34:47,085 INFO L93 Difference]: Finished difference Result 49828 states and 62133 transitions. [2021-11-06 17:34:47,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 17:34:47,086 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-06 17:34:47,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:34:47,244 INFO L225 Difference]: With dead ends: 49828 [2021-11-06 17:34:47,244 INFO L226 Difference]: Without dead ends: 24901 [2021-11-06 17:34:47,371 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:34:47,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24901 states. [2021-11-06 17:34:48,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24901 to 24901. [2021-11-06 17:34:48,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24901 states, 24829 states have (on average 1.244230536872206) internal successors, (30893), 24862 states have internal predecessors, (30893), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-11-06 17:34:48,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24901 states to 24901 states and 30977 transitions. [2021-11-06 17:34:48,275 INFO L78 Accepts]: Start accepts. Automaton has 24901 states and 30977 transitions. Word has length 35 [2021-11-06 17:34:48,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:34:48,276 INFO L470 AbstractCegarLoop]: Abstraction has 24901 states and 30977 transitions. [2021-11-06 17:34:48,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:34:48,276 INFO L276 IsEmpty]: Start isEmpty. Operand 24901 states and 30977 transitions. [2021-11-06 17:34:48,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-06 17:34:48,282 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:34:48,283 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:34:48,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 17:34:48,285 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-06 17:34:48,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:34:48,288 INFO L85 PathProgramCache]: Analyzing trace with hash 290760718, now seen corresponding path program 1 times [2021-11-06 17:34:48,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:34:48,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243495995] [2021-11-06 17:34:48,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:34:48,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:34:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:34:48,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:34:48,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:34:48,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243495995] [2021-11-06 17:34:48,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243495995] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:34:48,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:34:48,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:34:48,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861633861] [2021-11-06 17:34:48,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:34:48,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:34:48,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:34:48,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:34:48,462 INFO L87 Difference]: Start difference. First operand 24901 states and 30977 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:34:49,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:34:49,707 INFO L93 Difference]: Finished difference Result 74295 states and 92423 transitions. [2021-11-06 17:34:49,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:34:49,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-06 17:34:49,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:34:49,876 INFO L225 Difference]: With dead ends: 74295 [2021-11-06 17:34:49,877 INFO L226 Difference]: Without dead ends: 49415 [2021-11-06 17:34:49,951 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:34:50,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49415 states. [2021-11-06 17:34:50,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49415 to 49368. [2021-11-06 17:34:51,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49368 states, 49249 states have (on average 1.2442486141850595) internal successors, (61278), 49292 states have internal predecessors, (61278), 83 states have call successors, (83), 12 states have call predecessors, (83), 12 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2021-11-06 17:34:51,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49368 states to 49368 states and 61444 transitions. [2021-11-06 17:34:51,165 INFO L78 Accepts]: Start accepts. Automaton has 49368 states and 61444 transitions. Word has length 35 [2021-11-06 17:34:51,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:34:51,166 INFO L470 AbstractCegarLoop]: Abstraction has 49368 states and 61444 transitions. [2021-11-06 17:34:51,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:34:51,166 INFO L276 IsEmpty]: Start isEmpty. Operand 49368 states and 61444 transitions. [2021-11-06 17:34:51,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-06 17:34:51,176 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:34:51,176 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 17:34:51,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 17:34:51,180 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-06 17:34:51,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:34:51,181 INFO L85 PathProgramCache]: Analyzing trace with hash 2005344363, now seen corresponding path program 1 times [2021-11-06 17:34:51,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:34:51,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130611872] [2021-11-06 17:34:51,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:34:51,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:34:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:34:51,425 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-06 17:34:51,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:34:51,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130611872] [2021-11-06 17:34:51,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130611872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:34:51,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:34:51,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:34:51,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688229234] [2021-11-06 17:34:51,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:34:51,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:34:51,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:34:51,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:34:51,428 INFO L87 Difference]: Start difference. First operand 49368 states and 61444 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:34:52,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:34:52,872 INFO L93 Difference]: Finished difference Result 76450 states and 95453 transitions. [2021-11-06 17:34:52,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:34:52,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-06 17:34:52,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:34:53,193 INFO L225 Difference]: With dead ends: 76450 [2021-11-06 17:34:53,193 INFO L226 Difference]: Without dead ends: 76402 [2021-11-06 17:34:53,267 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:34:53,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76402 states. [2021-11-06 17:34:54,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76402 to 74408. [2021-11-06 17:34:54,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74408 states, 74242 states have (on average 1.2474879448290725) internal successors, (92616), 74296 states have internal predecessors, (92616), 125 states have call successors, (125), 22 states have call predecessors, (125), 22 states have return successors, (165), 119 states have call predecessors, (165), 125 states have call successors, (165) [2021-11-06 17:34:55,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74408 states to 74408 states and 92906 transitions. [2021-11-06 17:34:55,202 INFO L78 Accepts]: Start accepts. Automaton has 74408 states and 92906 transitions. Word has length 53 [2021-11-06 17:34:55,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:34:55,202 INFO L470 AbstractCegarLoop]: Abstraction has 74408 states and 92906 transitions. [2021-11-06 17:34:55,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:34:55,203 INFO L276 IsEmpty]: Start isEmpty. Operand 74408 states and 92906 transitions. [2021-11-06 17:34:55,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-06 17:34:55,222 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:34:55,223 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:34:55,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 17:34:55,223 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-06 17:34:55,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:34:55,224 INFO L85 PathProgramCache]: Analyzing trace with hash 989856842, now seen corresponding path program 1 times [2021-11-06 17:34:55,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:34:55,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573969006] [2021-11-06 17:34:55,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:34:55,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:34:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:34:55,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:34:55,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:34:55,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573969006] [2021-11-06 17:34:55,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573969006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:34:55,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:34:55,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:34:55,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512419885] [2021-11-06 17:34:55,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 17:34:55,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:34:55,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 17:34:55,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 17:34:55,394 INFO L87 Difference]: Start difference. First operand 74408 states and 92906 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:35:00,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:35:00,308 INFO L93 Difference]: Finished difference Result 296076 states and 368747 transitions. [2021-11-06 17:35:00,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 17:35:00,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-06 17:35:00,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:35:01,324 INFO L225 Difference]: With dead ends: 296076 [2021-11-06 17:35:01,327 INFO L226 Difference]: Without dead ends: 221689 [2021-11-06 17:35:01,603 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 17:35:01,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221689 states. [2021-11-06 17:35:05,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221689 to 147727. [2021-11-06 17:35:05,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147727 states, 147422 states have (on average 1.2467745655329598) internal successors, (183802), 147504 states have internal predecessors, (183802), 242 states have call successors, (242), 44 states have call predecessors, (242), 44 states have return successors, (318), 226 states have call predecessors, (318), 242 states have call successors, (318) [2021-11-06 17:35:06,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147727 states to 147727 states and 184362 transitions. [2021-11-06 17:35:06,178 INFO L78 Accepts]: Start accepts. Automaton has 147727 states and 184362 transitions. Word has length 65 [2021-11-06 17:35:06,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:35:06,179 INFO L470 AbstractCegarLoop]: Abstraction has 147727 states and 184362 transitions. [2021-11-06 17:35:06,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:35:06,180 INFO L276 IsEmpty]: Start isEmpty. Operand 147727 states and 184362 transitions. [2021-11-06 17:35:06,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-06 17:35:06,214 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:35:06,214 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:35:06,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 17:35:06,214 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-06 17:35:06,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:35:06,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1886308727, now seen corresponding path program 1 times [2021-11-06 17:35:06,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:35:06,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559792786] [2021-11-06 17:35:06,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:35:06,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:35:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:35:06,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:35:06,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:35:06,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559792786] [2021-11-06 17:35:06,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559792786] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:35:06,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:35:06,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:35:06,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353116136] [2021-11-06 17:35:06,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 17:35:06,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:35:06,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 17:35:06,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 17:35:06,369 INFO L87 Difference]: Start difference. First operand 147727 states and 184362 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)