./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.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 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 18:16:41,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:16:41,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:16:41,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:16:41,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:16:41,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:16:41,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:16:41,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:16:41,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:16:41,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:16:41,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:16:41,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:16:41,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:16:41,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:16:41,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:16:41,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:16:41,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:16:41,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:16:41,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:16:41,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:16:41,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:16:41,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:16:41,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:16:41,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:16:41,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:16:41,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:16:41,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:16:41,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:16:41,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:16:41,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:16:41,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:16:41,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:16:41,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:16:41,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:16:41,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:16:41,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:16:41,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:16:41,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:16:41,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:16:41,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:16:41,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:16:41,711 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:16:41,741 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:16:41,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:16:41,742 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:16:41,742 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:16:41,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:16:41,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:16:41,744 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:16:41,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:16:41,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:16:41,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:16:41,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:16:41,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:16:41,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:16:41,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:16:41,746 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:16:41,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:16:41,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:16:41,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:16:41,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:16:41,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:16:41,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:16:41,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:16:41,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:16:41,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:16:41,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:16:41,747 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:16:41,748 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:16:41,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:16:41,748 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:16:41,748 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 [2021-11-06 18:16:41,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:16:41,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:16:41,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:16:41,953 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:16:41,954 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:16:41,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-06 18:16:42,006 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdb42f57c/c05621cc90a54ae9bfd831254aa08404/FLAGbbcea873c [2021-11-06 18:16:42,638 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:16:42,639 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-06 18:16:42,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdb42f57c/c05621cc90a54ae9bfd831254aa08404/FLAGbbcea873c [2021-11-06 18:16:42,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdb42f57c/c05621cc90a54ae9bfd831254aa08404 [2021-11-06 18:16:42,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:16:42,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:16:42,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:16:42,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:16:42,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:16:42,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:16:42" (1/1) ... [2021-11-06 18:16:42,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c31652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:42, skipping insertion in model container [2021-11-06 18:16:42,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:16:42" (1/1) ... [2021-11-06 18:16:42,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:16:43,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:16:45,031 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_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2021-11-06 18:16:45,035 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_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2021-11-06 18:16:45,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:16:45,075 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:16:45,622 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_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2021-11-06 18:16:45,623 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_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2021-11-06 18:16:45,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:16:45,776 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:16:45,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:45 WrapperNode [2021-11-06 18:16:45,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:16:45,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:16:45,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:16:45,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:16:45,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:45" (1/1) ... [2021-11-06 18:16:45,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:45" (1/1) ... [2021-11-06 18:16:51,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:16:51,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:16:51,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:16:51,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:16:51,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:45" (1/1) ... [2021-11-06 18:16:51,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:45" (1/1) ... [2021-11-06 18:16:52,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:45" (1/1) ... [2021-11-06 18:16:52,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:45" (1/1) ... [2021-11-06 18:16:54,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:45" (1/1) ... [2021-11-06 18:16:55,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:45" (1/1) ... [2021-11-06 18:16:55,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:45" (1/1) ... [2021-11-06 18:16:56,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:16:56,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:16:56,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:16:56,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:16:56,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:45" (1/1) ... [2021-11-06 18:16:56,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:16:56,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:16:56,283 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 18:16:56,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 18:16:56,307 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2021-11-06 18:16:56,307 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2021-11-06 18:16:56,307 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2021-11-06 18:16:56,308 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2021-11-06 18:16:56,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:16:56,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 18:16:56,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 18:16:56,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:16:56,308 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2021-11-06 18:16:56,308 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2021-11-06 18:16:56,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:16:56,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:16:56,309 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 18:16:56,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 18:16:56,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:16:56,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:16:56,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 18:16:56,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 18:16:56,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:16:56,310 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2021-11-06 18:16:56,310 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2021-11-06 18:16:56,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:16:56,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:16:56,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:16:56,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:16:56,310 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 18:16:56,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 18:18:05,994 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 18:18:05,995 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 18:18:05,995 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-06 18:18:05,995 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-06 18:18:05,995 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-06 18:18:05,995 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2021-11-06 18:18:05,995 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2021-11-06 18:18:05,995 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#7: ldv_switch_2_#res := 0; [2021-11-06 18:18:05,995 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#8: ldv_switch_2_#res := 0; [2021-11-06 18:18:05,996 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 18:18:05,996 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 18:18:06,002 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:18:06,003 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:18:06,004 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint lmc_trace_returnLabel#14: havoc lmc_proto_type_#t~mem1372.base, lmc_proto_type_#t~mem1372.offset; [2021-11-06 18:18:06,004 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint lmc_trace_returnLabel#10: havoc lmc_proto_type_#t~mem1372.base, lmc_proto_type_#t~mem1372.offset; [2021-11-06 18:18:06,081 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:18:06,081 INFO L299 CfgBuilder]: Removed 40644 assume(true) statements. [2021-11-06 18:18:06,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:18:06 BoogieIcfgContainer [2021-11-06 18:18:06,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:18:06,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:18:06,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:18:06,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:18:06,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:16:42" (1/3) ... [2021-11-06 18:18:06,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15834cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:18:06, skipping insertion in model container [2021-11-06 18:18:06,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:16:45" (2/3) ... [2021-11-06 18:18:06,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15834cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:18:06, skipping insertion in model container [2021-11-06 18:18:06,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:18:06" (3/3) ... [2021-11-06 18:18:06,107 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-06 18:18:06,110 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:18:06,110 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-06 18:18:06,199 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:18:06,203 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 18:18:06,204 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-06 18:18:06,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 31582 states, 31532 states have (on average 1.2500317138145376) internal successors, (39416), 31548 states have internal predecessors, (39416), 31 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-06 18:18:06,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-06 18:18:06,532 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:18:06,532 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:18:06,533 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 18:18:06,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:18:06,537 INFO L85 PathProgramCache]: Analyzing trace with hash 398559688, now seen corresponding path program 1 times [2021-11-06 18:18:06,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:18:06,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088432073] [2021-11-06 18:18:06,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:18:06,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:18:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:18:07,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:18:07,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:18:07,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088432073] [2021-11-06 18:18:07,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088432073] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:18:07,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:18:07,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:18:07,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038948774] [2021-11-06 18:18:07,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:18:07,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:18:07,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:18:07,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:18:07,624 INFO L87 Difference]: Start difference. First operand has 31582 states, 31532 states have (on average 1.2500317138145376) internal successors, (39416), 31548 states have internal predecessors, (39416), 31 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:18:11,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:18:11,581 INFO L93 Difference]: Finished difference Result 88699 states and 110945 transitions. [2021-11-06 18:18:11,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:18:11,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2021-11-06 18:18:11,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:18:11,892 INFO L225 Difference]: With dead ends: 88699 [2021-11-06 18:18:11,893 INFO L226 Difference]: Without dead ends: 56933 [2021-11-06 18:18:12,063 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:18:12,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56933 states. [2021-11-06 18:18:13,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56933 to 56911. [2021-11-06 18:18:13,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56911 states, 56832 states have (on average 1.2471846846846846) internal successors, (70880), 56852 states have internal predecessors, (70880), 54 states have call successors, (54), 12 states have call predecessors, (54), 12 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2021-11-06 18:18:13,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56911 states to 56911 states and 70988 transitions. [2021-11-06 18:18:13,874 INFO L78 Accepts]: Start accepts. Automaton has 56911 states and 70988 transitions. Word has length 82 [2021-11-06 18:18:13,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:18:13,876 INFO L470 AbstractCegarLoop]: Abstraction has 56911 states and 70988 transitions. [2021-11-06 18:18:13,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:18:13,879 INFO L276 IsEmpty]: Start isEmpty. Operand 56911 states and 70988 transitions. [2021-11-06 18:18:13,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-06 18:18:13,914 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:18:13,914 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:18:13,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:18:13,915 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 18:18:13,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:18:13,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1038599362, now seen corresponding path program 1 times [2021-11-06 18:18:13,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:18:13,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023009467] [2021-11-06 18:18:13,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:18:13,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:18:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:18:14,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:18:14,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:18:14,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023009467] [2021-11-06 18:18:14,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023009467] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:18:14,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:18:14,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:18:14,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219483770] [2021-11-06 18:18:14,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:18:14,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:18:14,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:18:14,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:18:14,161 INFO L87 Difference]: Start difference. First operand 56911 states and 70988 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:18:18,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:18:18,671 INFO L93 Difference]: Finished difference Result 169838 states and 211814 transitions. [2021-11-06 18:18:18,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:18:18,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 100 [2021-11-06 18:18:18,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:18:19,114 INFO L225 Difference]: With dead ends: 169838 [2021-11-06 18:18:19,115 INFO L226 Difference]: Without dead ends: 113051 [2021-11-06 18:18:19,307 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:18:19,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113051 states. [2021-11-06 18:18:21,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113051 to 112979. [2021-11-06 18:18:22,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112979 states, 112838 states have (on average 1.2468228788174196) internal successors, (140689), 112862 states have internal predecessors, (140689), 104 states have call successors, (104), 24 states have call predecessors, (104), 24 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2021-11-06 18:18:22,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112979 states to 112979 states and 140897 transitions. [2021-11-06 18:18:22,677 INFO L78 Accepts]: Start accepts. Automaton has 112979 states and 140897 transitions. Word has length 100 [2021-11-06 18:18:22,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:18:22,678 INFO L470 AbstractCegarLoop]: Abstraction has 112979 states and 140897 transitions. [2021-11-06 18:18:22,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:18:22,678 INFO L276 IsEmpty]: Start isEmpty. Operand 112979 states and 140897 transitions. [2021-11-06 18:18:22,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-06 18:18:22,713 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:18:22,727 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:18:22,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:18:22,727 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 18:18:22,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:18:22,728 INFO L85 PathProgramCache]: Analyzing trace with hash 99742409, now seen corresponding path program 1 times [2021-11-06 18:18:22,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:18:22,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438194748] [2021-11-06 18:18:22,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:18:22,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:18:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:18:22,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:18:22,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:18:22,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438194748] [2021-11-06 18:18:22,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438194748] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:18:22,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:18:22,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:18:22,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797913910] [2021-11-06 18:18:22,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:18:22,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:18:22,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:18:22,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:18:22,938 INFO L87 Difference]: Start difference. First operand 112979 states and 140897 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:18:29,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:18:29,238 INFO L93 Difference]: Finished difference Result 323543 states and 403886 transitions. [2021-11-06 18:18:29,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:18:29,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 104 [2021-11-06 18:18:29,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:18:30,491 INFO L225 Difference]: With dead ends: 323543 [2021-11-06 18:18:30,491 INFO L226 Difference]: Without dead ends: 210688 [2021-11-06 18:18:30,811 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:18:31,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210688 states. [2021-11-06 18:18:35,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210688 to 209262. [2021-11-06 18:18:35,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209262 states, 209013 states have (on average 1.2484199547396573) internal successors, (260936), 209049 states have internal predecessors, (260936), 188 states have call successors, (188), 48 states have call predecessors, (188), 48 states have return successors, (242), 188 states have call predecessors, (242), 188 states have call successors, (242) [2021-11-06 18:18:36,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209262 states to 209262 states and 261366 transitions. [2021-11-06 18:18:36,673 INFO L78 Accepts]: Start accepts. Automaton has 209262 states and 261366 transitions. Word has length 104 [2021-11-06 18:18:36,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:18:36,674 INFO L470 AbstractCegarLoop]: Abstraction has 209262 states and 261366 transitions. [2021-11-06 18:18:36,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:18:36,674 INFO L276 IsEmpty]: Start isEmpty. Operand 209262 states and 261366 transitions. [2021-11-06 18:18:36,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-06 18:18:36,717 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:18:36,717 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:18:36,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:18:36,717 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-06 18:18:36,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:18:36,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1735980700, now seen corresponding path program 1 times [2021-11-06 18:18:36,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:18:36,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935903633] [2021-11-06 18:18:36,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:18:36,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:18:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:18:36,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:18:36,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:18:36,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935903633] [2021-11-06 18:18:36,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935903633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:18:36,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:18:36,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:18:36,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068735538] [2021-11-06 18:18:36,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:18:36,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:18:36,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:18:36,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:18:36,938 INFO L87 Difference]: Start difference. First operand 209262 states and 261366 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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)