./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-32_7a-drivers--block--rsxx--rsxx.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-32_7a-drivers--block--rsxx--rsxx.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 66bf0b457d4d5112c0b99aeef3b038fb34481370a385df3d77d1a982d2cba2ad --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 14:48:32,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 14:48:32,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 14:48:32,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 14:48:32,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 14:48:32,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 14:48:32,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 14:48:32,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 14:48:32,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 14:48:32,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 14:48:32,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 14:48:32,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 14:48:32,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 14:48:32,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 14:48:32,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 14:48:32,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 14:48:32,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 14:48:32,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 14:48:32,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 14:48:32,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 14:48:32,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 14:48:32,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 14:48:32,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 14:48:32,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 14:48:32,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 14:48:32,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 14:48:32,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 14:48:32,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 14:48:32,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 14:48:32,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 14:48:32,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 14:48:32,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 14:48:32,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 14:48:32,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 14:48:32,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 14:48:32,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 14:48:32,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 14:48:32,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 14:48:32,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 14:48:32,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 14:48:32,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 14:48:32,780 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 14:48:32,807 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 14:48:32,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 14:48:32,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 14:48:32,808 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 14:48:32,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 14:48:32,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 14:48:32,809 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 14:48:32,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 14:48:32,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 14:48:32,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 14:48:32,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 14:48:32,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 14:48:32,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 14:48:32,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 14:48:32,811 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 14:48:32,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 14:48:32,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 14:48:32,811 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 14:48:32,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 14:48:32,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:48:32,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 14:48:32,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 14:48:32,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 14:48:32,812 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 14:48:32,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 14:48:32,813 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 14:48:32,813 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 14:48:32,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 14:48:32,813 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 14:48:32,813 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66bf0b457d4d5112c0b99aeef3b038fb34481370a385df3d77d1a982d2cba2ad [2021-11-07 14:48:33,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 14:48:33,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 14:48:33,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 14:48:33,042 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 14:48:33,042 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 14:48:33,043 INFO L432 ainManager$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-32_7a-drivers--block--rsxx--rsxx.ko-entry_point.cil.out.i [2021-11-07 14:48:33,093 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67d94f783/b922771c234f4b2bac289d6cbbf017e6/FLAG7d8d7ac7c [2021-11-07 14:48:33,721 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 14:48:33,722 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--block--rsxx--rsxx.ko-entry_point.cil.out.i [2021-11-07 14:48:33,763 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67d94f783/b922771c234f4b2bac289d6cbbf017e6/FLAG7d8d7ac7c [2021-11-07 14:48:33,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67d94f783/b922771c234f4b2bac289d6cbbf017e6 [2021-11-07 14:48:33,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 14:48:33,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 14:48:33,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 14:48:33,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 14:48:33,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 14:48:33,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:48:33" (1/1) ... [2021-11-07 14:48:33,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc533bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:33, skipping insertion in model container [2021-11-07 14:48:33,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:48:33" (1/1) ... [2021-11-07 14:48:33,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 14:48:34,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 14:48:35,946 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-32_7a-drivers--block--rsxx--rsxx.ko-entry_point.cil.out.i[348806,348819] [2021-11-07 14:48:36,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:48:36,187 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 14:48:36,556 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-32_7a-drivers--block--rsxx--rsxx.ko-entry_point.cil.out.i[348806,348819] [2021-11-07 14:48:36,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:48:36,676 INFO L208 MainTranslator]: Completed translation [2021-11-07 14:48:36,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:36 WrapperNode [2021-11-07 14:48:36,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 14:48:36,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 14:48:36,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 14:48:36,679 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 14:48:36,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:36" (1/1) ... [2021-11-07 14:48:36,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:36" (1/1) ... [2021-11-07 14:48:45,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 14:48:45,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 14:48:45,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 14:48:45,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 14:48:45,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:36" (1/1) ... [2021-11-07 14:48:45,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:36" (1/1) ... [2021-11-07 14:48:47,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:36" (1/1) ... [2021-11-07 14:48:47,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:36" (1/1) ... [2021-11-07 14:48:50,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:36" (1/1) ... [2021-11-07 14:48:51,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:36" (1/1) ... [2021-11-07 14:48:51,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:36" (1/1) ... [2021-11-07 14:48:52,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 14:48:52,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 14:48:52,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 14:48:52,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 14:48:52,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:36" (1/1) ... [2021-11-07 14:48:52,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:48:52,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 14:48:52,720 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 14:48:52,722 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 14:48:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 14:48:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 14:48:52,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 14:48:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 14:48:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 14:48:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 14:48:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 14:48:52,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 14:48:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 14:48:52,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 14:48:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 14:48:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 14:48:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 14:48:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 14:48:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 14:58:57,713 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 14:58:57,714 INFO L299 CfgBuilder]: Removed 64288 assume(true) statements. [2021-11-07 14:58:57,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:58:57 BoogieIcfgContainer [2021-11-07 14:58:57,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 14:58:57,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 14:58:57,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 14:58:57,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 14:58:57,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:48:33" (1/3) ... [2021-11-07 14:58:57,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b48e682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:58:57, skipping insertion in model container [2021-11-07 14:58:57,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:48:36" (2/3) ... [2021-11-07 14:58:57,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b48e682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:58:57, skipping insertion in model container [2021-11-07 14:58:57,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:58:57" (3/3) ... [2021-11-07 14:58:57,770 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--block--rsxx--rsxx.ko-entry_point.cil.out.i [2021-11-07 14:58:57,773 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 14:58:57,774 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 114 error locations. [2021-11-07 14:58:57,992 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 14:58:58,003 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 14:58:58,003 INFO L340 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2021-11-07 14:58:58,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 67876 states, 67761 states have (on average 1.4776198698366316) internal successors, (100125), 67875 states have internal predecessors, (100125), 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 14:58:58,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-07 14:58:58,670 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:58:58,671 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, 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 14:58:58,671 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 111 more)] === [2021-11-07 14:58:58,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:58:58,675 INFO L85 PathProgramCache]: Analyzing trace with hash -88239022, now seen corresponding path program 1 times [2021-11-07 14:58:58,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:58:58,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684223578] [2021-11-07 14:58:58,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:58:58,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:58:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:58:59,312 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 14:58:59,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:58:59,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684223578] [2021-11-07 14:58:59,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684223578] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:58:59,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:58:59,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:58:59,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629416703] [2021-11-07 14:58:59,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:58:59,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 14:58:59,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:58:59,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 14:58:59,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:58:59,429 INFO L87 Difference]: Start difference. First operand has 67876 states, 67761 states have (on average 1.4776198698366316) internal successors, (100125), 67875 states have internal predecessors, (100125), 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 2 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 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 14:59:01,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:59:01,292 INFO L93 Difference]: Finished difference Result 135748 states and 200245 transitions. [2021-11-07 14:59:01,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 14:59:01,298 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 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 90 [2021-11-07 14:59:01,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:59:01,501 INFO L225 Difference]: With dead ends: 135748 [2021-11-07 14:59:01,502 INFO L226 Difference]: Without dead ends: 67495 [2021-11-07 14:59:01,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:59:01,609 INFO L933 BasicCegarLoop]: 99584 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, 99584 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 178.59ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 14:59:01,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 99584 Invalid, 0 Unknown, 0 Unchecked, 178.59ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 14:59:01,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67495 states. [2021-11-07 14:59:03,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67495 to 67495. [2021-11-07 14:59:03,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67495 states, 67381 states have (on average 1.4666745818554192) internal successors, (98826), 67494 states have internal predecessors, (98826), 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 14:59:03,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67495 states to 67495 states and 98826 transitions. [2021-11-07 14:59:03,380 INFO L78 Accepts]: Start accepts. Automaton has 67495 states and 98826 transitions. Word has length 90 [2021-11-07 14:59:03,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:59:03,380 INFO L470 AbstractCegarLoop]: Abstraction has 67495 states and 98826 transitions. [2021-11-07 14:59:03,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 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 14:59:03,381 INFO L276 IsEmpty]: Start isEmpty. Operand 67495 states and 98826 transitions. [2021-11-07 14:59:03,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-07 14:59:03,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:59:03,389 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, 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 14:59:03,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 14:59:03,389 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 111 more)] === [2021-11-07 14:59:03,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:59:03,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1800637664, now seen corresponding path program 1 times [2021-11-07 14:59:03,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:59:03,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020344462] [2021-11-07 14:59:03,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:59:03,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:59:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:59:03,737 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 14:59:03,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:59:03,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020344462] [2021-11-07 14:59:03,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020344462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:59:03,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:59:03,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:59:03,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967689078] [2021-11-07 14:59:03,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:59:03,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:59:03,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:59:03,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:59:03,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:59:03,744 INFO L87 Difference]: Start difference. First operand 67495 states and 98826 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 14:59:06,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:59:06,038 INFO L93 Difference]: Finished difference Result 142131 states and 207885 transitions. [2021-11-07 14:59:06,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:59:06,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2021-11-07 14:59:06,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:59:06,218 INFO L225 Difference]: With dead ends: 142131 [2021-11-07 14:59:06,218 INFO L226 Difference]: Without dead ends: 74711 [2021-11-07 14:59:06,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.44ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:59:06,342 INFO L933 BasicCegarLoop]: 98825 mSDtfsCounter, 10393 mSDsluCounter, 98685 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 264.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10393 SdHoareTripleChecker+Valid, 197510 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 461.57ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 290.68ms IncrementalHoareTripleChecker+Time [2021-11-07 14:59:06,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10393 Valid, 197510 Invalid, 55 Unknown, 0 Unchecked, 461.57ms Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 290.68ms Time] [2021-11-07 14:59:06,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74711 states. [2021-11-07 14:59:07,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74711 to 74639. [2021-11-07 14:59:07,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74639 states, 74525 states have (on average 1.463911439114391) internal successors, (109098), 74638 states have internal predecessors, (109098), 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 14:59:07,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74639 states to 74639 states and 109098 transitions. [2021-11-07 14:59:07,847 INFO L78 Accepts]: Start accepts. Automaton has 74639 states and 109098 transitions. Word has length 90 [2021-11-07 14:59:07,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:59:07,849 INFO L470 AbstractCegarLoop]: Abstraction has 74639 states and 109098 transitions. [2021-11-07 14:59:07,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 14:59:07,849 INFO L276 IsEmpty]: Start isEmpty. Operand 74639 states and 109098 transitions. [2021-11-07 14:59:07,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-07 14:59:07,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:59:07,855 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, 1, 1, 1, 1, 1, 1, 1, 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 14:59:07,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 14:59:07,856 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 111 more)] === [2021-11-07 14:59:07,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:59:07,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1284873205, now seen corresponding path program 1 times [2021-11-07 14:59:07,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:59:07,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93605104] [2021-11-07 14:59:07,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:59:07,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:59:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:59:08,144 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 14:59:08,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:59:08,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93605104] [2021-11-07 14:59:08,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93605104] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:59:08,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:59:08,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:59:08,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984705469] [2021-11-07 14:59:08,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:59:08,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:59:08,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:59:08,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:59:08,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:59:08,148 INFO L87 Difference]: Start difference. First operand 74639 states and 109098 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 14:59:10,214 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:59:12,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:59:12,918 INFO L93 Difference]: Finished difference Result 223605 states and 326939 transitions. [2021-11-07 14:59:12,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:59:12,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2021-11-07 14:59:12,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:59:13,343 INFO L225 Difference]: With dead ends: 223605 [2021-11-07 14:59:13,343 INFO L226 Difference]: Without dead ends: 149041 [2021-11-07 14:59:13,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.37ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:59:13,477 INFO L933 BasicCegarLoop]: 98823 mSDtfsCounter, 98663 mSDsluCounter, 98768 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2115.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 98663 SdHoareTripleChecker+Valid, 197591 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 138.44ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2239.81ms IncrementalHoareTripleChecker+Time [2021-11-07 14:59:13,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98663 Valid, 197591 Invalid, 15 Unknown, 0 Unchecked, 138.44ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2239.81ms Time] [2021-11-07 14:59:13,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149041 states. [2021-11-07 14:59:15,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149041 to 148825. [2021-11-07 14:59:16,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148825 states, 148711 states have (on average 1.464666366307805) internal successors, (217812), 148824 states have internal predecessors, (217812), 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 14:59:16,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148825 states to 148825 states and 217812 transitions. [2021-11-07 14:59:16,616 INFO L78 Accepts]: Start accepts. Automaton has 148825 states and 217812 transitions. Word has length 97 [2021-11-07 14:59:16,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:59:16,618 INFO L470 AbstractCegarLoop]: Abstraction has 148825 states and 217812 transitions. [2021-11-07 14:59:16,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 14:59:16,618 INFO L276 IsEmpty]: Start isEmpty. Operand 148825 states and 217812 transitions. [2021-11-07 14:59:16,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-07 14:59:16,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:59:16,620 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:16,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 14:59:16,620 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 111 more)] === [2021-11-07 14:59:16,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:59:16,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1230253966, now seen corresponding path program 1 times [2021-11-07 14:59:16,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:59:16,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935319989] [2021-11-07 14:59:16,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:59:16,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:59:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:59:16,896 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 14:59:16,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:59:16,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935319989] [2021-11-07 14:59:16,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935319989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:59:16,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:59:16,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:59:16,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514362721] [2021-11-07 14:59:16,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:59:16,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:59:16,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:59:16,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:59:16,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:59:16,898 INFO L87 Difference]: Start difference. First operand 148825 states and 217812 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 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 14:59:18,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:59:18,773 INFO L93 Difference]: Finished difference Result 148825 states and 217812 transitions. [2021-11-07 14:59:18,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:59:18,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 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 101 [2021-11-07 14:59:18,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:59:19,111 INFO L225 Difference]: With dead ends: 148825 [2021-11-07 14:59:19,111 INFO L226 Difference]: Without dead ends: 148805 [2021-11-07 14:59:19,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:59:19,160 INFO L933 BasicCegarLoop]: 98796 mSDtfsCounter, 98604 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 148.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 98604 SdHoareTripleChecker+Valid, 98863 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 83.56ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 161.89ms IncrementalHoareTripleChecker+Time [2021-11-07 14:59:19,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98604 Valid, 98863 Invalid, 55 Unknown, 0 Unchecked, 83.56ms Time], IncrementalHoareTripleChecker [18 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 161.89ms Time] [2021-11-07 14:59:19,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148805 states.