./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.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 a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 15:39:58,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 15:39:58,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 15:39:58,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 15:39:58,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 15:39:58,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 15:39:58,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 15:39:58,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 15:39:58,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 15:39:58,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 15:39:58,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 15:39:58,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 15:39:58,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 15:39:58,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 15:39:58,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 15:39:58,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 15:39:58,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 15:39:58,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 15:39:58,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 15:39:58,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 15:39:58,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 15:39:58,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 15:39:58,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 15:39:58,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 15:39:58,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 15:39:58,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 15:39:58,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 15:39:58,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 15:39:58,547 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 15:39:58,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 15:39:58,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 15:39:58,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 15:39:58,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 15:39:58,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 15:39:58,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 15:39:58,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 15:39:58,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 15:39:58,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 15:39:58,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 15:39:58,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 15:39:58,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 15:39:58,556 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 15:39:58,585 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 15:39:58,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 15:39:58,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 15:39:58,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 15:39:58,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 15:39:58,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 15:39:58,588 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 15:39:58,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 15:39:58,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 15:39:58,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 15:39:58,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 15:39:58,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 15:39:58,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 15:39:58,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 15:39:58,590 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 15:39:58,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 15:39:58,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 15:39:58,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 15:39:58,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 15:39:58,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 15:39:58,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 15:39:58,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 15:39:58,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 15:39:58,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 15:39:58,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 15:39:58,592 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 15:39:58,592 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 15:39:58,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 15:39:58,592 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 15:39:58,592 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 [2021-11-05 15:39:58,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 15:39:58,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 15:39:58,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 15:39:58,889 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 15:39:58,890 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 15:39:58,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2021-11-05 15:39:58,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6342575b/c99be9d63ee44e17a8680bdffe2fb877/FLAGa55083af5 [2021-11-05 15:39:59,512 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 15:39:59,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2021-11-05 15:39:59,545 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6342575b/c99be9d63ee44e17a8680bdffe2fb877/FLAGa55083af5 [2021-11-05 15:39:59,974 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6342575b/c99be9d63ee44e17a8680bdffe2fb877 [2021-11-05 15:39:59,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 15:39:59,981 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 15:39:59,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 15:39:59,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 15:39:59,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 15:39:59,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:39:59" (1/1) ... [2021-11-05 15:39:59,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c4e7ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:39:59, skipping insertion in model container [2021-11-05 15:39:59,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:39:59" (1/1) ... [2021-11-05 15:39:59,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 15:40:00,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 15:40:00,777 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2021-11-05 15:40:00,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 15:40:00,870 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 15:40:01,029 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2021-11-05 15:40:01,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 15:40:01,147 INFO L208 MainTranslator]: Completed translation [2021-11-05 15:40:01,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:40:01 WrapperNode [2021-11-05 15:40:01,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 15:40:01,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 15:40:01,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 15:40:01,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 15:40:01,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:40:01" (1/1) ... [2021-11-05 15:40:01,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:40:01" (1/1) ... [2021-11-05 15:40:07,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 15:40:07,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 15:40:07,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 15:40:07,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 15:40:07,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:40:01" (1/1) ... [2021-11-05 15:40:07,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:40:01" (1/1) ... [2021-11-05 15:40:09,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:40:01" (1/1) ... [2021-11-05 15:40:09,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:40:01" (1/1) ... [2021-11-05 15:40:11,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:40:01" (1/1) ... [2021-11-05 15:40:11,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:40:01" (1/1) ... [2021-11-05 15:40:11,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:40:01" (1/1) ... [2021-11-05 15:40:12,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 15:40:12,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 15:40:12,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 15:40:12,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 15:40:12,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:40:01" (1/1) ... [2021-11-05 15:40:12,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 15:40:12,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 15:40:12,781 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) [2021-11-05 15:40:12,804 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 [2021-11-05 15:40:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 15:40:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 15:40:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 15:40:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 15:40:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 15:40:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 15:40:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 15:40:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 15:40:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 15:40:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 15:40:12,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 15:42:32,522 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 15:42:32,522 INFO L299 CfgBuilder]: Removed 51122 assume(true) statements. [2021-11-05 15:42:32,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:42:32 BoogieIcfgContainer [2021-11-05 15:42:32,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 15:42:32,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 15:42:32,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 15:42:32,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 15:42:32,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 03:39:59" (1/3) ... [2021-11-05 15:42:32,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e604a21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:42:32, skipping insertion in model container [2021-11-05 15:42:32,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:40:01" (2/3) ... [2021-11-05 15:42:32,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e604a21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:42:32, skipping insertion in model container [2021-11-05 15:42:32,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:42:32" (3/3) ... [2021-11-05 15:42:32,564 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2021-11-05 15:42:32,568 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 15:42:32,568 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1885 error locations. [2021-11-05 15:42:32,697 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 15:42:32,702 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 [2021-11-05 15:42:32,702 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1885 error locations. [2021-11-05 15:42:33,320 INFO L276 IsEmpty]: Start isEmpty. Operand has 47060 states, 45174 states have (on average 1.352392969407181) internal successors, (61093), 47059 states have internal predecessors, (61093), 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) [2021-11-05 15:42:33,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-05 15:42:33,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:42:33,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:42:33,326 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1882 more)] === [2021-11-05 15:42:33,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:42:33,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1728137145, now seen corresponding path program 1 times [2021-11-05 15:42:33,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:42:33,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836735694] [2021-11-05 15:42:33,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:42:33,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:42:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:42:33,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:42:33,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:42:33,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836735694] [2021-11-05 15:42:33,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836735694] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:42:33,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:42:33,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:42:33,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194496973] [2021-11-05 15:42:33,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:42:33,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:42:33,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:42:33,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:42:33,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:33,991 INFO L87 Difference]: Start difference. First operand has 47060 states, 45174 states have (on average 1.352392969407181) internal successors, (61093), 47059 states have internal predecessors, (61093), 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) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-11-05 15:42:36,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:42:36,487 INFO L93 Difference]: Finished difference Result 140339 states and 182189 transitions. [2021-11-05 15:42:36,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:42:36,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2021-11-05 15:42:36,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:42:36,835 INFO L225 Difference]: With dead ends: 140339 [2021-11-05 15:42:36,836 INFO L226 Difference]: Without dead ends: 93274 [2021-11-05 15:42:36,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:36,950 INFO L933 BasicCegarLoop]: 58260 mSDtfsCounter, 57220 mSDsluCounter, 58247 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 57220 SdHoareTripleChecker+Valid, 116507 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 250.32ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 111.43ms IncrementalHoareTripleChecker+Time [2021-11-05 15:42:36,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57220 Valid, 116507 Invalid, 11 Unknown, 0 Unchecked, 250.32ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 111.43ms Time] [2021-11-05 15:42:37,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93274 states. [2021-11-05 15:42:38,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93274 to 89566. [2021-11-05 15:42:38,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89566 states, 87681 states have (on average 1.2957425211847493) internal successors, (113612), 89565 states have internal predecessors, (113612), 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) [2021-11-05 15:42:39,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89566 states to 89566 states and 113612 transitions. [2021-11-05 15:42:39,259 INFO L78 Accepts]: Start accepts. Automaton has 89566 states and 113612 transitions. Word has length 15 [2021-11-05 15:42:39,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:42:39,260 INFO L470 AbstractCegarLoop]: Abstraction has 89566 states and 113612 transitions. [2021-11-05 15:42:39,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-11-05 15:42:39,260 INFO L276 IsEmpty]: Start isEmpty. Operand 89566 states and 113612 transitions. [2021-11-05 15:42:39,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-05 15:42:39,262 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:42:39,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:42:39,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 15:42:39,262 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1882 more)] === [2021-11-05 15:42:39,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:42:39,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1858017951, now seen corresponding path program 1 times [2021-11-05 15:42:39,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:42:39,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446328829] [2021-11-05 15:42:39,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:42:39,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:42:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:42:39,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:42:39,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:42:39,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446328829] [2021-11-05 15:42:39,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446328829] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:42:39,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:42:39,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:42:39,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423532017] [2021-11-05 15:42:39,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:42:39,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:42:39,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:42:39,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:42:39,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:39,467 INFO L87 Difference]: Start difference. First operand 89566 states and 113612 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-11-05 15:42:42,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:42:42,237 INFO L93 Difference]: Finished difference Result 266566 states and 338138 transitions. [2021-11-05 15:42:42,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:42:42,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2021-11-05 15:42:42,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:42:42,837 INFO L225 Difference]: With dead ends: 266566 [2021-11-05 15:42:42,845 INFO L226 Difference]: Without dead ends: 177003 [2021-11-05 15:42:43,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.47ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:43,078 INFO L933 BasicCegarLoop]: 59290 mSDtfsCounter, 56879 mSDsluCounter, 58243 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 56879 SdHoareTripleChecker+Valid, 117533 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 96.09ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 107.56ms IncrementalHoareTripleChecker+Time [2021-11-05 15:42:43,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56879 Valid, 117533 Invalid, 11 Unknown, 0 Unchecked, 96.09ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 107.56ms Time] [2021-11-05 15:42:43,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177003 states. [2021-11-05 15:42:45,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177003 to 173319. [2021-11-05 15:42:46,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173319 states, 171434 states have (on average 1.298913867727522) internal successors, (222678), 173318 states have internal predecessors, (222678), 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) [2021-11-05 15:42:46,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173319 states to 173319 states and 222678 transitions. [2021-11-05 15:42:46,681 INFO L78 Accepts]: Start accepts. Automaton has 173319 states and 222678 transitions. Word has length 16 [2021-11-05 15:42:46,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:42:46,681 INFO L470 AbstractCegarLoop]: Abstraction has 173319 states and 222678 transitions. [2021-11-05 15:42:46,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-11-05 15:42:46,682 INFO L276 IsEmpty]: Start isEmpty. Operand 173319 states and 222678 transitions. [2021-11-05 15:42:46,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-05 15:42:46,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:42:46,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:42:46,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 15:42:46,687 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1882 more)] === [2021-11-05 15:42:46,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:42:46,690 INFO L85 PathProgramCache]: Analyzing trace with hash -509966553, now seen corresponding path program 1 times [2021-11-05 15:42:46,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:42:46,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115419934] [2021-11-05 15:42:46,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:42:46,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:42:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:42:46,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:42:46,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:42:46,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115419934] [2021-11-05 15:42:46,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115419934] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:42:46,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:42:46,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:42:46,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359755317] [2021-11-05 15:42:46,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:42:46,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:42:46,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:42:46,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:42:46,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:46,906 INFO L87 Difference]: Start difference. First operand 173319 states and 222678 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-05 15:42:52,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:42:52,461 INFO L93 Difference]: Finished difference Result 516731 states and 663882 transitions. [2021-11-05 15:42:52,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:42:52,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-11-05 15:42:52,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:42:53,497 INFO L225 Difference]: With dead ends: 516731 [2021-11-05 15:42:53,498 INFO L226 Difference]: Without dead ends: 343415 [2021-11-05 15:42:53,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:42:53,954 INFO L933 BasicCegarLoop]: 60660 mSDtfsCounter, 57185 mSDsluCounter, 58243 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 57185 SdHoareTripleChecker+Valid, 118903 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 83.21ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106.30ms IncrementalHoareTripleChecker+Time [2021-11-05 15:42:53,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57185 Valid, 118903 Invalid, 11 Unknown, 0 Unchecked, 83.21ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 106.30ms Time] [2021-11-05 15:42:54,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343415 states. [2021-11-05 15:43:00,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343415 to 339707. [2021-11-05 15:43:00,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339707 states, 337822 states have (on average 1.3005132880629444) internal successors, (439342), 339706 states have internal predecessors, (439342), 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) [2021-11-05 15:43:01,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339707 states to 339707 states and 439342 transitions. [2021-11-05 15:43:01,695 INFO L78 Accepts]: Start accepts. Automaton has 339707 states and 439342 transitions. Word has length 17 [2021-11-05 15:43:01,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:43:01,696 INFO L470 AbstractCegarLoop]: Abstraction has 339707 states and 439342 transitions. [2021-11-05 15:43:01,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-05 15:43:01,696 INFO L276 IsEmpty]: Start isEmpty. Operand 339707 states and 439342 transitions. [2021-11-05 15:43:01,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-05 15:43:01,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:43:01,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 15:43:01,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 15:43:01,698 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr114ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1882 more)] === [2021-11-05 15:43:01,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:43:01,698 INFO L85 PathProgramCache]: Analyzing trace with hash -366600154, now seen corresponding path program 1 times [2021-11-05 15:43:01,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:43:01,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495498380] [2021-11-05 15:43:01,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:43:01,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:43:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:43:01,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:43:01,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:43:01,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495498380] [2021-11-05 15:43:01,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495498380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:43:01,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:43:01,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:43:01,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231092195] [2021-11-05 15:43:01,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:43:01,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:43:01,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:43:01,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:43:01,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:43:01,895 INFO L87 Difference]: Start difference. First operand 339707 states and 439342 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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)