./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.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 6c1be66de5de44f99e184f931232a9d8bcb0b8fd4712efbcede070913355a2c0 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 18:22:08,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 18:22:08,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 18:22:08,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 18:22:08,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 18:22:08,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 18:22:08,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 18:22:08,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 18:22:08,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 18:22:08,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 18:22:08,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 18:22:08,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 18:22:08,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 18:22:08,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 18:22:08,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 18:22:08,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 18:22:08,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 18:22:08,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 18:22:08,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 18:22:08,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 18:22:08,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 18:22:08,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 18:22:08,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 18:22:08,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 18:22:08,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 18:22:08,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 18:22:08,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 18:22:08,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 18:22:08,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 18:22:08,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 18:22:08,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 18:22:08,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 18:22:08,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 18:22:08,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 18:22:08,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 18:22:08,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 18:22:08,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 18:22:08,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 18:22:08,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 18:22:08,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 18:22:08,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 18:22:08,826 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 18:22:08,847 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 18:22:08,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 18:22:08,850 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 18:22:08,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 18:22:08,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 18:22:08,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 18:22:08,852 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 18:22:08,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 18:22:08,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 18:22:08,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 18:22:08,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 18:22:08,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 18:22:08,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 18:22:08,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 18:22:08,854 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 18:22:08,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 18:22:08,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 18:22:08,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 18:22:08,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 18:22:08,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 18:22:08,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 18:22:08,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 18:22:08,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 18:22:08,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 18:22:08,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 18:22:08,856 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 18:22:08,856 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 18:22:08,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 18:22:08,856 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 18:22:08,856 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c1be66de5de44f99e184f931232a9d8bcb0b8fd4712efbcede070913355a2c0 [2021-11-07 18:22:09,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 18:22:09,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 18:22:09,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 18:22:09,132 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 18:22:09,133 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 18:22:09,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-07 18:22:09,191 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0818cf5a/c5fdac0d5f7e45b9aefa488f87b8bf45/FLAGc2e7022fd [2021-11-07 18:22:09,913 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 18:22:09,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-07 18:22:09,962 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0818cf5a/c5fdac0d5f7e45b9aefa488f87b8bf45/FLAGc2e7022fd [2021-11-07 18:22:09,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0818cf5a/c5fdac0d5f7e45b9aefa488f87b8bf45 [2021-11-07 18:22:09,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 18:22:09,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 18:22:09,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 18:22:09,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 18:22:09,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 18:22:09,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:22:09" (1/1) ... [2021-11-07 18:22:09,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69885133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:09, skipping insertion in model container [2021-11-07 18:22:09,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:22:09" (1/1) ... [2021-11-07 18:22:09,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 18:22:10,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 18:22:12,083 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324559,324572] [2021-11-07 18:22:12,089 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324728,324741] [2021-11-07 18:22:12,090 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324895,324908] [2021-11-07 18:22:12,090 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[325063,325076] [2021-11-07 18:22:12,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 18:22:12,141 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 18:22:12,442 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324559,324572] [2021-11-07 18:22:12,444 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324728,324741] [2021-11-07 18:22:12,444 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324895,324908] [2021-11-07 18:22:12,444 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[325063,325076] [2021-11-07 18:22:12,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 18:22:12,577 INFO L208 MainTranslator]: Completed translation [2021-11-07 18:22:12,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12 WrapperNode [2021-11-07 18:22:12,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 18:22:12,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 18:22:12,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 18:22:12,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 18:22:12,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2021-11-07 18:22:12,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2021-11-07 18:22:31,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 18:22:31,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 18:22:31,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 18:22:31,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 18:22:31,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2021-11-07 18:22:31,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2021-11-07 18:22:33,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2021-11-07 18:22:33,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2021-11-07 18:22:36,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2021-11-07 18:22:37,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2021-11-07 18:22:37,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2021-11-07 18:22:38,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 18:22:38,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 18:22:38,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 18:22:38,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 18:22:38,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (1/1) ... [2021-11-07 18:22:39,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 18:22:39,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 18:22:39,023 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 18:22:39,028 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 18:22:39,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 18:22:39,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 18:22:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 18:22:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 18:22:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 18:22:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 18:22:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 18:22:39,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 18:22:39,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 18:22:39,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 18:22:39,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 18:22:39,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 18:22:39,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 18:22:39,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 18:22:39,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 18:27:23,986 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_10_returnLabel: main_#res := 0; [2021-11-07 18:27:23,987 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L9598: #t~ret1175 := main_#res; [2021-11-07 18:27:23,988 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 18:27:24,011 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset; [2021-11-07 18:27:24,180 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 18:27:24,180 INFO L299 CfgBuilder]: Removed 81209 assume(true) statements. [2021-11-07 18:27:24,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:27:24 BoogieIcfgContainer [2021-11-07 18:27:24,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 18:27:24,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 18:27:24,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 18:27:24,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 18:27:24,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:22:09" (1/3) ... [2021-11-07 18:27:24,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd0cd90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:27:24, skipping insertion in model container [2021-11-07 18:27:24,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:22:12" (2/3) ... [2021-11-07 18:27:24,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd0cd90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:27:24, skipping insertion in model container [2021-11-07 18:27:24,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:27:24" (3/3) ... [2021-11-07 18:27:24,247 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-07 18:27:24,257 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 18:27:24,257 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2021-11-07 18:27:24,665 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 18:27:24,670 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 18:27:24,670 INFO L340 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2021-11-07 18:27:25,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 61979 states, 61935 states have (on average 1.3685961088237668) internal successors, (84764), 61978 states have internal predecessors, (84764), 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 18:27:25,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 18:27:25,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:27:25,345 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] [2021-11-07 18:27:25,346 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 18:27:25,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:27:25,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1851717536, now seen corresponding path program 1 times [2021-11-07 18:27:25,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:27:25,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174661378] [2021-11-07 18:27:25,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:27:25,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:27:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:27:25,895 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 18:27:25,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:27:25,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174661378] [2021-11-07 18:27:25,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174661378] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:27:25,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:27:25,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:27:25,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496130950] [2021-11-07 18:27:25,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:27:25,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:27:25,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:27:25,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:27:25,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:27:26,003 INFO L87 Difference]: Start difference. First operand has 61979 states, 61935 states have (on average 1.3685961088237668) internal successors, (84764), 61978 states have internal predecessors, (84764), 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 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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 18:27:28,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:27:28,949 INFO L93 Difference]: Finished difference Result 123914 states and 169473 transitions. [2021-11-07 18:27:28,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 18:27:28,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2021-11-07 18:27:28,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:27:29,224 INFO L225 Difference]: With dead ends: 123914 [2021-11-07 18:27:29,225 INFO L226 Difference]: Without dead ends: 61820 [2021-11-07 18:27:29,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.17ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 18:27:29,362 INFO L933 BasicCegarLoop]: 84704 mSDtfsCounter, 84690 mSDsluCounter, 84624 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 159.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 84690 SdHoareTripleChecker+Valid, 169328 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 281.54ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 195.22ms IncrementalHoareTripleChecker+Time [2021-11-07 18:27:29,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84690 Valid, 169328 Invalid, 84 Unknown, 0 Unchecked, 281.54ms Time], IncrementalHoareTripleChecker [28 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 195.22ms Time] [2021-11-07 18:27:29,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61820 states. [2021-11-07 18:27:31,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61820 to 61820. [2021-11-07 18:27:31,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61820 states, 61778 states have (on average 1.3661497620512157) internal successors, (84398), 61819 states have internal predecessors, (84398), 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 18:27:31,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61820 states to 61820 states and 84398 transitions. [2021-11-07 18:27:31,486 INFO L78 Accepts]: Start accepts. Automaton has 61820 states and 84398 transitions. Word has length 25 [2021-11-07 18:27:31,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:27:31,487 INFO L470 AbstractCegarLoop]: Abstraction has 61820 states and 84398 transitions. [2021-11-07 18:27:31,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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 18:27:31,487 INFO L276 IsEmpty]: Start isEmpty. Operand 61820 states and 84398 transitions. [2021-11-07 18:27:31,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-07 18:27:31,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:27:31,488 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] [2021-11-07 18:27:31,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 18:27:31,489 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 18:27:31,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:27:31,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1377216765, now seen corresponding path program 1 times [2021-11-07 18:27:31,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:27:31,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308774442] [2021-11-07 18:27:31,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:27:31,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:27:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:27:31,684 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 18:27:31,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:27:31,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308774442] [2021-11-07 18:27:31,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308774442] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:27:31,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:27:31,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:27:31,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230337493] [2021-11-07 18:27:31,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:27:31,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:27:31,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:27:31,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:27:31,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:27:31,690 INFO L87 Difference]: Start difference. First operand 61820 states and 84398 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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 18:27:33,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:27:33,417 INFO L93 Difference]: Finished difference Result 61820 states and 84398 transitions. [2021-11-07 18:27:33,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 18:27:33,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2021-11-07 18:27:33,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:27:33,555 INFO L225 Difference]: With dead ends: 61820 [2021-11-07 18:27:33,556 INFO L226 Difference]: Without dead ends: 61816 [2021-11-07 18:27:33,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.38ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 18:27:33,600 INFO L933 BasicCegarLoop]: 84390 mSDtfsCounter, 84370 mSDsluCounter, 84316 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 112.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 84370 SdHoareTripleChecker+Valid, 168706 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 164.60ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 134.98ms IncrementalHoareTripleChecker+Time [2021-11-07 18:27:33,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84370 Valid, 168706 Invalid, 82 Unknown, 0 Unchecked, 164.60ms Time], IncrementalHoareTripleChecker [28 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 134.98ms Time] [2021-11-07 18:27:33,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61816 states. [2021-11-07 18:27:35,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61816 to 61816. [2021-11-07 18:27:35,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61816 states, 61776 states have (on average 1.3661292411292412) internal successors, (84394), 61815 states have internal predecessors, (84394), 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 18:27:35,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61816 states to 61816 states and 84394 transitions. [2021-11-07 18:27:35,359 INFO L78 Accepts]: Start accepts. Automaton has 61816 states and 84394 transitions. Word has length 27 [2021-11-07 18:27:35,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:27:35,360 INFO L470 AbstractCegarLoop]: Abstraction has 61816 states and 84394 transitions. [2021-11-07 18:27:35,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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 18:27:35,360 INFO L276 IsEmpty]: Start isEmpty. Operand 61816 states and 84394 transitions. [2021-11-07 18:27:35,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 18:27:35,367 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:27:35,367 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] [2021-11-07 18:27:35,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 18:27:35,368 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 18:27:35,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:27:35,368 INFO L85 PathProgramCache]: Analyzing trace with hash -648508890, now seen corresponding path program 1 times [2021-11-07 18:27:35,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:27:35,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55393084] [2021-11-07 18:27:35,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:27:35,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:27:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:27:35,549 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 18:27:35,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:27:35,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55393084] [2021-11-07 18:27:35,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55393084] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:27:35,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:27:35,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:27:35,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129853465] [2021-11-07 18:27:35,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:27:35,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:27:35,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:27:35,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:27:35,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:27:35,552 INFO L87 Difference]: Start difference. First operand 61816 states and 84394 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 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 18:27:36,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:27:36,998 INFO L93 Difference]: Finished difference Result 61816 states and 84394 transitions. [2021-11-07 18:27:36,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 18:27:36,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2021-11-07 18:27:36,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:27:37,142 INFO L225 Difference]: With dead ends: 61816 [2021-11-07 18:27:37,142 INFO L226 Difference]: Without dead ends: 61812 [2021-11-07 18:27:37,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.42ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 18:27:37,169 INFO L933 BasicCegarLoop]: 84386 mSDtfsCounter, 84364 mSDsluCounter, 84314 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 84364 SdHoareTripleChecker+Valid, 168700 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 118.47ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98.06ms IncrementalHoareTripleChecker+Time [2021-11-07 18:27:37,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84364 Valid, 168700 Invalid, 80 Unknown, 0 Unchecked, 118.47ms Time], IncrementalHoareTripleChecker [28 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 98.06ms Time] [2021-11-07 18:27:37,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61812 states. [2021-11-07 18:27:38,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61812 to 61812. [2021-11-07 18:27:38,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61812 states, 61774 states have (on average 1.3661087188784926) internal successors, (84390), 61811 states have internal predecessors, (84390), 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 18:27:38,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61812 states to 61812 states and 84390 transitions. [2021-11-07 18:27:38,764 INFO L78 Accepts]: Start accepts. Automaton has 61812 states and 84390 transitions. Word has length 29 [2021-11-07 18:27:38,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:27:38,764 INFO L470 AbstractCegarLoop]: Abstraction has 61812 states and 84390 transitions. [2021-11-07 18:27:38,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 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 18:27:38,765 INFO L276 IsEmpty]: Start isEmpty. Operand 61812 states and 84390 transitions. [2021-11-07 18:27:38,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 18:27:38,765 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:27:38,766 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] [2021-11-07 18:27:38,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 18:27:38,766 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 18:27:38,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:27:38,767 INFO L85 PathProgramCache]: Analyzing trace with hash -439909943, now seen corresponding path program 1 times [2021-11-07 18:27:38,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:27:38,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773827252] [2021-11-07 18:27:38,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:27:38,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:27:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:27:38,968 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 18:27:38,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:27:38,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773827252] [2021-11-07 18:27:38,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773827252] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:27:38,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:27:38,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:27:38,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082708455] [2021-11-07 18:27:38,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:27:38,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:27:38,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:27:38,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:27:38,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:27:38,973 INFO L87 Difference]: Start difference. First operand 61812 states and 84390 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 18:27:40,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 18:27:40,428 INFO L93 Difference]: Finished difference Result 61812 states and 84390 transitions. [2021-11-07 18:27:40,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 18:27:40,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2021-11-07 18:27:40,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 18:27:40,573 INFO L225 Difference]: With dead ends: 61812 [2021-11-07 18:27:40,573 INFO L226 Difference]: Without dead ends: 61808 [2021-11-07 18:27:40,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.85ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 18:27:40,603 INFO L933 BasicCegarLoop]: 84382 mSDtfsCounter, 84358 mSDsluCounter, 84312 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 118.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 84358 SdHoareTripleChecker+Valid, 168694 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 116.77ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 133.73ms IncrementalHoareTripleChecker+Time [2021-11-07 18:27:40,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84358 Valid, 168694 Invalid, 78 Unknown, 0 Unchecked, 116.77ms Time], IncrementalHoareTripleChecker [28 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 133.73ms Time] [2021-11-07 18:27:40,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61808 states. [2021-11-07 18:27:42,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61808 to 61808. [2021-11-07 18:27:42,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61808 states, 61772 states have (on average 1.3660881952988408) internal successors, (84386), 61807 states have internal predecessors, (84386), 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 18:27:42,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61808 states to 61808 states and 84386 transitions. [2021-11-07 18:27:42,396 INFO L78 Accepts]: Start accepts. Automaton has 61808 states and 84386 transitions. Word has length 31 [2021-11-07 18:27:42,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 18:27:42,397 INFO L470 AbstractCegarLoop]: Abstraction has 61808 states and 84386 transitions. [2021-11-07 18:27:42,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 18:27:42,397 INFO L276 IsEmpty]: Start isEmpty. Operand 61808 states and 84386 transitions. [2021-11-07 18:27:42,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 18:27:42,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 18:27:42,398 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] [2021-11-07 18:27:42,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 18:27:42,399 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-07 18:27:42,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 18:27:42,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1839784468, now seen corresponding path program 1 times [2021-11-07 18:27:42,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 18:27:42,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142781944] [2021-11-07 18:27:42,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 18:27:42,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 18:27:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 18:27:42,570 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 18:27:42,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 18:27:42,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142781944] [2021-11-07 18:27:42,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142781944] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 18:27:42,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 18:27:42,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 18:27:42,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316012440] [2021-11-07 18:27:42,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 18:27:42,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 18:27:42,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 18:27:42,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 18:27:42,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 18:27:42,573 INFO L87 Difference]: Start difference. First operand 61808 states and 84386 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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)