./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 5b36d44f 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-wip.dd.seqcomp-5b36d44 [2021-11-07 15:57:32,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 15:57:32,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 15:57:32,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 15:57:32,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 15:57:32,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 15:57:32,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 15:57:32,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 15:57:32,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 15:57:32,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 15:57:32,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 15:57:32,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 15:57:32,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 15:57:32,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 15:57:32,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 15:57:32,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 15:57:32,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 15:57:32,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 15:57:32,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 15:57:32,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 15:57:32,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 15:57:32,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 15:57:32,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 15:57:32,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 15:57:32,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 15:57:32,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 15:57:32,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 15:57:32,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 15:57:32,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 15:57:32,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 15:57:32,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 15:57:32,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 15:57:32,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 15:57:32,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 15:57:32,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 15:57:32,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 15:57:32,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 15:57:32,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 15:57:32,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 15:57:32,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 15:57:32,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 15:57:32,541 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 15:57:32,574 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 15:57:32,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 15:57:32,575 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 15:57:32,575 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 15:57:32,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 15:57:32,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 15:57:32,576 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 15:57:32,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 15:57:32,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 15:57:32,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 15:57:32,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 15:57:32,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 15:57:32,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 15:57:32,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 15:57:32,578 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 15:57:32,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 15:57:32,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 15:57:32,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 15:57:32,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 15:57:32,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:57:32,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 15:57:32,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 15:57:32,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 15:57:32,580 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 15:57:32,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 15:57:32,581 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 15:57:32,581 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 15:57:32,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 15:57:32,582 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 15:57:32,583 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 [2021-11-07 15:57:32,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 15:57:32,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 15:57:32,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 15:57:32,814 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 15:57:32,815 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 15:57:32,817 INFO L432 ainManager$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 [2021-11-07 15:57:32,891 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ba271a6e/c59b36758f1646579299a684b07d3ba2/FLAGd0bc6887e [2021-11-07 15:57:33,583 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 15:57:33,584 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 [2021-11-07 15:57:33,631 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ba271a6e/c59b36758f1646579299a684b07d3ba2/FLAGd0bc6887e [2021-11-07 15:57:33,848 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ba271a6e/c59b36758f1646579299a684b07d3ba2 [2021-11-07 15:57:33,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 15:57:33,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 15:57:33,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 15:57:33,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 15:57:33,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 15:57:33,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:57:33" (1/1) ... [2021-11-07 15:57:33,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf50626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:33, skipping insertion in model container [2021-11-07 15:57:33,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:57:33" (1/1) ... [2021-11-07 15:57:33,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 15:57:34,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 15:57:36,059 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] [2021-11-07 15:57:36,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:57:36,177 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 15:57:36,717 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] [2021-11-07 15:57:36,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:57:36,819 INFO L208 MainTranslator]: Completed translation [2021-11-07 15:57:36,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:36 WrapperNode [2021-11-07 15:57:36,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 15:57:36,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 15:57:36,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 15:57:36,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 15:57:36,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:36" (1/1) ... [2021-11-07 15:57:36,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:36" (1/1) ... [2021-11-07 15:57:42,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 15:57:42,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 15:57:42,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 15:57:42,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 15:57:42,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:36" (1/1) ... [2021-11-07 15:57:42,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:36" (1/1) ... [2021-11-07 15:57:43,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:36" (1/1) ... [2021-11-07 15:57:43,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:36" (1/1) ... [2021-11-07 15:57:45,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:36" (1/1) ... [2021-11-07 15:57:45,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:36" (1/1) ... [2021-11-07 15:57:45,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:36" (1/1) ... [2021-11-07 15:57:46,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 15:57:46,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 15:57:46,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 15:57:46,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 15:57:46,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:36" (1/1) ... [2021-11-07 15:57:46,591 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:57:46,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 15:57:46,613 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) [2021-11-07 15:57:46,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 15:57:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2021-11-07 15:57:46,640 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2021-11-07 15:57:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 15:57:46,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 15:57:46,643 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2021-11-07 15:57:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2021-11-07 15:57:46,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 15:57:46,644 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2021-11-07 15:57:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2021-11-07 15:57:46,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 15:57:46,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 15:57:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 15:57:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 15:57:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 15:57:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 15:57:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 15:57:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2021-11-07 15:57:46,646 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2021-11-07 15:57:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 15:57:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 15:57:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 15:57:46,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 15:57:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 15:57:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 15:57:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 15:57:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 15:57:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 15:58:30,731 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 15:58:30,732 INFO L299 CfgBuilder]: Removed 32562 assume(true) statements. [2021-11-07 15:58:30,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:58:30 BoogieIcfgContainer [2021-11-07 15:58:30,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 15:58:30,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 15:58:30,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 15:58:30,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 15:58:30,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:57:33" (1/3) ... [2021-11-07 15:58:30,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52211f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:58:30, skipping insertion in model container [2021-11-07 15:58:30,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:36" (2/3) ... [2021-11-07 15:58:30,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52211f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:58:30, skipping insertion in model container [2021-11-07 15:58:30,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:58:30" (3/3) ... [2021-11-07 15:58:30,763 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2021-11-07 15:58:30,768 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 15:58:30,768 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2021-11-07 15:58:30,896 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 15:58:30,904 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 [2021-11-07 15:58:30,905 INFO L340 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2021-11-07 15:58:31,219 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) [2021-11-07 15:58:31,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 15:58:31,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:58:31,236 INFO L514 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] [2021-11-07 15:58:31,237 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)] === [2021-11-07 15:58:31,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:58:31,242 INFO L85 PathProgramCache]: Analyzing trace with hash 150014610, now seen corresponding path program 1 times [2021-11-07 15:58:31,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:58:31,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506246702] [2021-11-07 15:58:31,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:58:31,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:58:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:58:31,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:58:31,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:58:31,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506246702] [2021-11-07 15:58:31,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506246702] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:58:31,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:58:31,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:58:31,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008817227] [2021-11-07 15:58:31,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:58:31,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 15:58:31,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:58:31,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 15:58:31,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:58:31,930 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) [2021-11-07 15:58:32,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:58:32,790 INFO L93 Difference]: Finished difference Result 49828 states and 62133 transitions. [2021-11-07 15:58:32,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 15:58:32,792 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 [2021-11-07 15:58:32,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:58:33,280 INFO L225 Difference]: With dead ends: 49828 [2021-11-07 15:58:33,281 INFO L226 Difference]: Without dead ends: 24901 [2021-11-07 15:58:33,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:58:33,414 INFO L933 BasicCegarLoop]: 31002 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31002 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 62.41ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 15:58:33,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31002 Invalid, 0 Unknown, 0 Unchecked, 62.41ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 15:58:33,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24901 states. [2021-11-07 15:58:34,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24901 to 24901. [2021-11-07 15:58:34,185 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) [2021-11-07 15:58:34,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24901 states to 24901 states and 30977 transitions. [2021-11-07 15:58:34,349 INFO L78 Accepts]: Start accepts. Automaton has 24901 states and 30977 transitions. Word has length 35 [2021-11-07 15:58:34,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:58:34,349 INFO L470 AbstractCegarLoop]: Abstraction has 24901 states and 30977 transitions. [2021-11-07 15:58:34,350 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) [2021-11-07 15:58:34,350 INFO L276 IsEmpty]: Start isEmpty. Operand 24901 states and 30977 transitions. [2021-11-07 15:58:34,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 15:58:34,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:58:34,357 INFO L514 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] [2021-11-07 15:58:34,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 15:58:34,358 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)] === [2021-11-07 15:58:34,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:58:34,361 INFO L85 PathProgramCache]: Analyzing trace with hash 290760718, now seen corresponding path program 1 times [2021-11-07 15:58:34,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:58:34,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55204847] [2021-11-07 15:58:34,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:58:34,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:58:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:58:34,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:58:34,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:58:34,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55204847] [2021-11-07 15:58:34,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55204847] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:58:34,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:58:34,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:58:34,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568196630] [2021-11-07 15:58:34,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:58:34,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:58:34,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:58:34,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:58:34,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:58:34,596 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) [2021-11-07 15:58:36,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:58:36,337 INFO L93 Difference]: Finished difference Result 74295 states and 92423 transitions. [2021-11-07 15:58:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:58:36,338 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 [2021-11-07 15:58:36,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:58:36,608 INFO L225 Difference]: With dead ends: 74295 [2021-11-07 15:58:36,610 INFO L226 Difference]: Without dead ends: 49415 [2021-11-07 15:58:36,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.19ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:58:36,738 INFO L933 BasicCegarLoop]: 31017 mSDtfsCounter, 30506 mSDsluCounter, 30942 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30506 SdHoareTripleChecker+Valid, 61959 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 98.76ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.85ms IncrementalHoareTripleChecker+Time [2021-11-07 15:58:36,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30506 Valid, 61959 Invalid, 14 Unknown, 0 Unchecked, 98.76ms Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 85.85ms Time] [2021-11-07 15:58:36,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49415 states. [2021-11-07 15:58:37,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49415 to 49368. [2021-11-07 15:58:38,001 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) [2021-11-07 15:58:38,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49368 states to 49368 states and 61444 transitions. [2021-11-07 15:58:38,553 INFO L78 Accepts]: Start accepts. Automaton has 49368 states and 61444 transitions. Word has length 35 [2021-11-07 15:58:38,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:58:38,554 INFO L470 AbstractCegarLoop]: Abstraction has 49368 states and 61444 transitions. [2021-11-07 15:58:38,559 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) [2021-11-07 15:58:38,560 INFO L276 IsEmpty]: Start isEmpty. Operand 49368 states and 61444 transitions. [2021-11-07 15:58:38,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 15:58:38,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:58:38,571 INFO L514 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] [2021-11-07 15:58:38,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 15:58:38,571 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)] === [2021-11-07 15:58:38,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:58:38,572 INFO L85 PathProgramCache]: Analyzing trace with hash 2005344363, now seen corresponding path program 1 times [2021-11-07 15:58:38,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:58:38,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527625167] [2021-11-07 15:58:38,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:58:38,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:58:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:58:38,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 15:58:38,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:58:38,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527625167] [2021-11-07 15:58:38,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527625167] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:58:38,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:58:38,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:58:38,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089026378] [2021-11-07 15:58:38,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:58:38,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:58:38,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:58:38,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:58:38,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:58:38,875 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) [2021-11-07 15:58:40,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:58:40,324 INFO L93 Difference]: Finished difference Result 76450 states and 95453 transitions. [2021-11-07 15:58:40,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:58:40,325 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 [2021-11-07 15:58:40,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:58:40,815 INFO L225 Difference]: With dead ends: 76450 [2021-11-07 15:58:40,816 INFO L226 Difference]: Without dead ends: 76402 [2021-11-07 15:58:40,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:58:40,862 INFO L933 BasicCegarLoop]: 41543 mSDtfsCounter, 19360 mSDsluCounter, 28405 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 186.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19360 SdHoareTripleChecker+Valid, 69948 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 67.11ms SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 229.30ms IncrementalHoareTripleChecker+Time [2021-11-07 15:58:40,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19360 Valid, 69948 Invalid, 164 Unknown, 0 Unchecked, 67.11ms Time], IncrementalHoareTripleChecker [63 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 229.30ms Time] [2021-11-07 15:58:40,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76402 states. [2021-11-07 15:58:42,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76402 to 74408. [2021-11-07 15:58:42,840 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) [2021-11-07 15:58:43,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74408 states to 74408 states and 92906 transitions. [2021-11-07 15:58:43,039 INFO L78 Accepts]: Start accepts. Automaton has 74408 states and 92906 transitions. Word has length 53 [2021-11-07 15:58:43,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:58:43,040 INFO L470 AbstractCegarLoop]: Abstraction has 74408 states and 92906 transitions. [2021-11-07 15:58:43,040 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) [2021-11-07 15:58:43,040 INFO L276 IsEmpty]: Start isEmpty. Operand 74408 states and 92906 transitions. [2021-11-07 15:58:43,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 15:58:43,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:58:43,066 INFO L514 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] [2021-11-07 15:58:43,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 15:58:43,067 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)] === [2021-11-07 15:58:43,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:58:43,068 INFO L85 PathProgramCache]: Analyzing trace with hash 989856842, now seen corresponding path program 1 times [2021-11-07 15:58:43,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:58:43,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917437389] [2021-11-07 15:58:43,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:58:43,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:58:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:58:43,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:58:43,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:58:43,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917437389] [2021-11-07 15:58:43,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917437389] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:58:43,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:58:43,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:58:43,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144315369] [2021-11-07 15:58:43,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:58:43,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 15:58:43,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:58:43,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 15:58:43,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 15:58:43,255 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) [2021-11-07 15:58:48,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:58:48,475 INFO L93 Difference]: Finished difference Result 296076 states and 368747 transitions. [2021-11-07 15:58:48,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 15:58:48,481 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 [2021-11-07 15:58:48,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:58:49,620 INFO L225 Difference]: With dead ends: 296076 [2021-11-07 15:58:49,621 INFO L226 Difference]: Without dead ends: 221689 [2021-11-07 15:58:50,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.98ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:58:50,177 INFO L933 BasicCegarLoop]: 65843 mSDtfsCounter, 53976 mSDsluCounter, 67312 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 190.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 54001 SdHoareTripleChecker+Valid, 133155 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 144.02ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 226.67ms IncrementalHoareTripleChecker+Time [2021-11-07 15:58:50,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54001 Valid, 133155 Invalid, 182 Unknown, 0 Unchecked, 144.02ms Time], IncrementalHoareTripleChecker [54 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 226.67ms Time] [2021-11-07 15:58:50,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221689 states. [2021-11-07 15:58:54,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221689 to 147727. [2021-11-07 15:58:54,418 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) [2021-11-07 15:58:55,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147727 states to 147727 states and 184362 transitions. [2021-11-07 15:58:55,241 INFO L78 Accepts]: Start accepts. Automaton has 147727 states and 184362 transitions. Word has length 65 [2021-11-07 15:58:55,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:58:55,242 INFO L470 AbstractCegarLoop]: Abstraction has 147727 states and 184362 transitions. [2021-11-07 15:58:55,242 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) [2021-11-07 15:58:55,242 INFO L276 IsEmpty]: Start isEmpty. Operand 147727 states and 184362 transitions. [2021-11-07 15:58:55,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 15:58:55,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:58:55,284 INFO L514 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] [2021-11-07 15:58:55,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 15:58:55,284 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)] === [2021-11-07 15:58:55,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:58:55,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1886308727, now seen corresponding path program 1 times [2021-11-07 15:58:55,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:58:55,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258728067] [2021-11-07 15:58:55,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:58:55,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:58:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:58:55,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:58:55,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:58:55,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258728067] [2021-11-07 15:58:55,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258728067] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:58:55,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:58:55,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:58:55,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918398027] [2021-11-07 15:58:55,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:58:55,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 15:58:55,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:58:55,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 15:58:55,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 15:58:55,483 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)