./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-ethernet-sun-sunhme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.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 3bc6b3a88723e5b624538f8d0e562bbcbb838c2bd2dcd71ae870bf42dcd3068b --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 21:39:36,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 21:39:36,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 21:39:36,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 21:39:36,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 21:39:36,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 21:39:36,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 21:39:36,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 21:39:36,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 21:39:36,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 21:39:36,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 21:39:36,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 21:39:36,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 21:39:36,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 21:39:36,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 21:39:36,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 21:39:36,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 21:39:36,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 21:39:36,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 21:39:36,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 21:39:36,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 21:39:36,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 21:39:36,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 21:39:36,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 21:39:36,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 21:39:36,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 21:39:36,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 21:39:36,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 21:39:36,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 21:39:36,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 21:39:36,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 21:39:36,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 21:39:36,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 21:39:36,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 21:39:36,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 21:39:36,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 21:39:36,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 21:39:36,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 21:39:36,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 21:39:36,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 21:39:36,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 21:39:36,747 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 21:39:36,786 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 21:39:36,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 21:39:36,787 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 21:39:36,787 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 21:39:36,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 21:39:36,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 21:39:36,789 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 21:39:36,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 21:39:36,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 21:39:36,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 21:39:36,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 21:39:36,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 21:39:36,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 21:39:36,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 21:39:36,792 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 21:39:36,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 21:39:36,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 21:39:36,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 21:39:36,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 21:39:36,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 21:39:36,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 21:39:36,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 21:39:36,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 21:39:36,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 21:39:36,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 21:39:36,794 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 21:39:36,794 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 21:39:36,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 21:39:36,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 21:39:36,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc6b3a88723e5b624538f8d0e562bbcbb838c2bd2dcd71ae870bf42dcd3068b [2021-11-05 21:39:37,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 21:39:37,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 21:39:37,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 21:39:37,096 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 21:39:37,097 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 21:39:37,098 INFO L432 ainManager$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-ethernet-sun-sunhme.cil.i [2021-11-05 21:39:37,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffec1a8dd/96b4d7144efa4d6e8aebbb4626ca2e71/FLAG2bdd17512 [2021-11-05 21:39:38,012 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 21:39:38,013 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-ethernet-sun-sunhme.cil.i [2021-11-05 21:39:38,066 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffec1a8dd/96b4d7144efa4d6e8aebbb4626ca2e71/FLAG2bdd17512 [2021-11-05 21:39:38,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffec1a8dd/96b4d7144efa4d6e8aebbb4626ca2e71 [2021-11-05 21:39:38,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 21:39:38,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 21:39:38,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 21:39:38,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 21:39:38,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 21:39:38,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 09:39:38" (1/1) ... [2021-11-05 21:39:38,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11559f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:39:38, skipping insertion in model container [2021-11-05 21:39:38,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 09:39:38" (1/1) ... [2021-11-05 21:39:38,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 21:39:38,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 21:39:40,646 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-ethernet-sun-sunhme.cil.i[339479,339492] [2021-11-05 21:39:40,649 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-ethernet-sun-sunhme.cil.i[339648,339661] [2021-11-05 21:39:40,649 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-ethernet-sun-sunhme.cil.i[339815,339828] [2021-11-05 21:39:40,650 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-ethernet-sun-sunhme.cil.i[339983,339996] [2021-11-05 21:39:40,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 21:39:40,714 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 21:39:41,030 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-ethernet-sun-sunhme.cil.i[339479,339492] [2021-11-05 21:39:41,031 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339648,339661] [2021-11-05 21:39:41,031 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_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[339815,339828] [2021-11-05 21:39:41,032 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-ethernet-sun-sunhme.cil.i[339983,339996] [2021-11-05 21:39:41,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 21:39:41,223 INFO L208 MainTranslator]: Completed translation [2021-11-05 21:39:41,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:39:41 WrapperNode [2021-11-05 21:39:41,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 21:39:41,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 21:39:41,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 21:39:41,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 21:39:41,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:39:41" (1/1) ... [2021-11-05 21:39:41,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:39:41" (1/1) ... [2021-11-05 21:39:50,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 21:39:50,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 21:39:50,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 21:39:50,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 21:39:50,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:39:41" (1/1) ... [2021-11-05 21:39:50,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:39:41" (1/1) ... [2021-11-05 21:39:51,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:39:41" (1/1) ... [2021-11-05 21:39:51,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:39:41" (1/1) ... [2021-11-05 21:39:53,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:39:41" (1/1) ... [2021-11-05 21:39:53,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:39:41" (1/1) ... [2021-11-05 21:39:53,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:39:41" (1/1) ... [2021-11-05 21:39:54,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 21:39:54,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 21:39:54,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 21:39:54,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 21:39:54,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:39:41" (1/1) ... [2021-11-05 21:39:54,432 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 21:39:54,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 21:39:54,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 21:39:54,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 21:39:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-05 21:39:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 21:39:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 21:39:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 21:39:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 21:39:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 21:39:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 21:39:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 21:39:54,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 21:39:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 21:39:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 21:39:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 21:39:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 21:39:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 21:39:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 21:39:54,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 21:40:36,643 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_14_returnLabel: main_#res := 0; [2021-11-05 21:40:36,647 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 21:40:36,648 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L9983: #t~ret1275 := main_#res; [2021-11-05 21:40:36,654 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; [2021-11-05 21:40:36,728 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 21:40:36,729 INFO L299 CfgBuilder]: Removed 44956 assume(true) statements. [2021-11-05 21:40:36,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 09:40:36 BoogieIcfgContainer [2021-11-05 21:40:36,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 21:40:36,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 21:40:36,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 21:40:36,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 21:40:36,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 09:39:38" (1/3) ... [2021-11-05 21:40:36,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a63a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 09:40:36, skipping insertion in model container [2021-11-05 21:40:36,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:39:41" (2/3) ... [2021-11-05 21:40:36,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a63a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 09:40:36, skipping insertion in model container [2021-11-05 21:40:36,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 09:40:36" (3/3) ... [2021-11-05 21:40:36,762 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-05 21:40:36,766 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 21:40:36,766 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 69 error locations. [2021-11-05 21:40:36,896 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 21:40:36,902 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 21:40:36,903 INFO L340 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2021-11-05 21:40:37,254 INFO L276 IsEmpty]: Start isEmpty. Operand has 28815 states, 28746 states have (on average 1.2065330828637029) internal successors, (34683), 28814 states have internal predecessors, (34683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:37,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-05 21:40:37,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:40:37,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 21:40:37,261 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 21:40:37,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:40:37,265 INFO L85 PathProgramCache]: Analyzing trace with hash -29633841, now seen corresponding path program 1 times [2021-11-05 21:40:37,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:40:37,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111048921] [2021-11-05 21:40:37,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:40:37,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:40:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:40:37,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:40:37,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:40:37,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111048921] [2021-11-05 21:40:37,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111048921] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:40:37,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:40:37,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:40:37,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456052494] [2021-11-05 21:40:37,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:40:37,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 21:40:37,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:40:37,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 21:40:37,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 21:40:37,893 INFO L87 Difference]: Start difference. First operand has 28815 states, 28746 states have (on average 1.2065330828637029) internal successors, (34683), 28814 states have internal predecessors, (34683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:39,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:40:39,098 INFO L93 Difference]: Finished difference Result 57591 states and 69316 transitions. [2021-11-05 21:40:39,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 21:40:39,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-05 21:40:39,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:40:39,249 INFO L225 Difference]: With dead ends: 57591 [2021-11-05 21:40:39,250 INFO L226 Difference]: Without dead ends: 28652 [2021-11-05 21:40:39,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.37ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 21:40:39,330 INFO L933 BasicCegarLoop]: 34539 mSDtfsCounter, 28985 mSDsluCounter, 5552 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28985 SdHoareTripleChecker+Valid, 40091 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 111.57ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.29ms IncrementalHoareTripleChecker+Time [2021-11-05 21:40:39,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28985 Valid, 40091 Invalid, 3 Unknown, 0 Unchecked, 111.57ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 12.29ms Time] [2021-11-05 21:40:39,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28652 states. [2021-11-05 21:40:40,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28652 to 28652. [2021-11-05 21:40:40,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28652 states, 28583 states have (on average 1.19700521288878) internal successors, (34214), 28651 states have internal predecessors, (34214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:40,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28652 states to 28652 states and 34214 transitions. [2021-11-05 21:40:40,428 INFO L78 Accepts]: Start accepts. Automaton has 28652 states and 34214 transitions. Word has length 17 [2021-11-05 21:40:40,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:40:40,429 INFO L470 AbstractCegarLoop]: Abstraction has 28652 states and 34214 transitions. [2021-11-05 21:40:40,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:40,430 INFO L276 IsEmpty]: Start isEmpty. Operand 28652 states and 34214 transitions. [2021-11-05 21:40:40,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-05 21:40:40,432 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:40:40,432 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] [2021-11-05 21:40:40,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 21:40:40,433 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 21:40:40,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:40:40,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1419453784, now seen corresponding path program 1 times [2021-11-05 21:40:40,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:40:40,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535214247] [2021-11-05 21:40:40,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:40:40,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:40:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:40:40,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:40:40,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:40:40,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535214247] [2021-11-05 21:40:40,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535214247] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:40:40,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:40:40,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:40:40,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691394679] [2021-11-05 21:40:40,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:40:40,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 21:40:40,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:40:40,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 21:40:40,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 21:40:40,650 INFO L87 Difference]: Start difference. First operand 28652 states and 34214 transitions. 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) [2021-11-05 21:40:41,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:40:41,789 INFO L93 Difference]: Finished difference Result 28652 states and 34214 transitions. [2021-11-05 21:40:41,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 21:40:41,790 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 [2021-11-05 21:40:41,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:40:41,857 INFO L225 Difference]: With dead ends: 28652 [2021-11-05 21:40:41,857 INFO L226 Difference]: Without dead ends: 28648 [2021-11-05 21:40:41,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.43ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 21:40:41,874 INFO L933 BasicCegarLoop]: 34206 mSDtfsCounter, 34190 mSDsluCounter, 34136 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34190 SdHoareTripleChecker+Valid, 68342 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 252.10ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100.27ms IncrementalHoareTripleChecker+Time [2021-11-05 21:40:41,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34190 Valid, 68342 Invalid, 76 Unknown, 0 Unchecked, 252.10ms Time], IncrementalHoareTripleChecker [24 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 100.27ms Time] [2021-11-05 21:40:41,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28648 states. [2021-11-05 21:40:42,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28648 to 28648. [2021-11-05 21:40:42,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28648 states, 28581 states have (on average 1.196949022077604) internal successors, (34210), 28647 states have internal predecessors, (34210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:42,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28648 states to 28648 states and 34210 transitions. [2021-11-05 21:40:42,780 INFO L78 Accepts]: Start accepts. Automaton has 28648 states and 34210 transitions. Word has length 25 [2021-11-05 21:40:42,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:40:42,781 INFO L470 AbstractCegarLoop]: Abstraction has 28648 states and 34210 transitions. [2021-11-05 21:40:42,781 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) [2021-11-05 21:40:42,781 INFO L276 IsEmpty]: Start isEmpty. Operand 28648 states and 34210 transitions. [2021-11-05 21:40:42,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-05 21:40:42,782 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:40:42,783 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] [2021-11-05 21:40:42,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 21:40:42,783 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 21:40:42,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:40:42,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1702205349, now seen corresponding path program 1 times [2021-11-05 21:40:42,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:40:42,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840352666] [2021-11-05 21:40:42,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:40:42,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:40:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:40:42,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:40:42,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:40:42,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840352666] [2021-11-05 21:40:42,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840352666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:40:42,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:40:42,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:40:42,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056935065] [2021-11-05 21:40:42,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:40:42,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 21:40:42,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:40:42,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 21:40:42,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 21:40:42,965 INFO L87 Difference]: Start difference. First operand 28648 states and 34210 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) [2021-11-05 21:40:43,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:40:43,771 INFO L93 Difference]: Finished difference Result 28648 states and 34210 transitions. [2021-11-05 21:40:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 21:40:43,771 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 [2021-11-05 21:40:43,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:40:43,846 INFO L225 Difference]: With dead ends: 28648 [2021-11-05 21:40:43,847 INFO L226 Difference]: Without dead ends: 28644 [2021-11-05 21:40:43,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.62ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 21:40:43,865 INFO L933 BasicCegarLoop]: 34202 mSDtfsCounter, 34182 mSDsluCounter, 34134 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34182 SdHoareTripleChecker+Valid, 68336 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 71.14ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81.91ms IncrementalHoareTripleChecker+Time [2021-11-05 21:40:43,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34182 Valid, 68336 Invalid, 76 Unknown, 0 Unchecked, 71.14ms Time], IncrementalHoareTripleChecker [26 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 81.91ms Time] [2021-11-05 21:40:43,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28644 states. [2021-11-05 21:40:44,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28644 to 28644. [2021-11-05 21:40:44,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28644 states, 28579 states have (on average 1.1968928234017986) internal successors, (34206), 28643 states have internal predecessors, (34206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:44,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28644 states to 28644 states and 34206 transitions. [2021-11-05 21:40:44,777 INFO L78 Accepts]: Start accepts. Automaton has 28644 states and 34206 transitions. Word has length 27 [2021-11-05 21:40:44,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:40:44,777 INFO L470 AbstractCegarLoop]: Abstraction has 28644 states and 34206 transitions. [2021-11-05 21:40:44,777 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) [2021-11-05 21:40:44,778 INFO L276 IsEmpty]: Start isEmpty. Operand 28644 states and 34206 transitions. [2021-11-05 21:40:44,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-05 21:40:44,779 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:40:44,779 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] [2021-11-05 21:40:44,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 21:40:44,779 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 21:40:44,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:40:44,780 INFO L85 PathProgramCache]: Analyzing trace with hash 565508062, now seen corresponding path program 1 times [2021-11-05 21:40:44,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:40:44,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336363598] [2021-11-05 21:40:44,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:40:44,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:40:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:40:44,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:40:44,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:40:44,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336363598] [2021-11-05 21:40:44,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336363598] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:40:44,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:40:44,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:40:44,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212686051] [2021-11-05 21:40:44,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:40:44,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 21:40:44,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:40:44,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 21:40:44,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 21:40:44,936 INFO L87 Difference]: Start difference. First operand 28644 states and 34206 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) [2021-11-05 21:40:45,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:40:45,700 INFO L93 Difference]: Finished difference Result 28644 states and 34206 transitions. [2021-11-05 21:40:45,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 21:40:45,701 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 [2021-11-05 21:40:45,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:40:45,771 INFO L225 Difference]: With dead ends: 28644 [2021-11-05 21:40:45,772 INFO L226 Difference]: Without dead ends: 28640 [2021-11-05 21:40:45,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.77ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 21:40:45,788 INFO L933 BasicCegarLoop]: 34198 mSDtfsCounter, 34176 mSDsluCounter, 34132 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34176 SdHoareTripleChecker+Valid, 68330 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 52.53ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.26ms IncrementalHoareTripleChecker+Time [2021-11-05 21:40:45,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34176 Valid, 68330 Invalid, 74 Unknown, 0 Unchecked, 52.53ms Time], IncrementalHoareTripleChecker [26 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 71.26ms Time] [2021-11-05 21:40:45,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28640 states. [2021-11-05 21:40:46,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28640 to 28640. [2021-11-05 21:40:46,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28640 states, 28577 states have (on average 1.1968366168597124) internal successors, (34202), 28639 states have internal predecessors, (34202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:46,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28640 states to 28640 states and 34202 transitions. [2021-11-05 21:40:46,565 INFO L78 Accepts]: Start accepts. Automaton has 28640 states and 34202 transitions. Word has length 29 [2021-11-05 21:40:46,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:40:46,566 INFO L470 AbstractCegarLoop]: Abstraction has 28640 states and 34202 transitions. [2021-11-05 21:40:46,566 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) [2021-11-05 21:40:46,566 INFO L276 IsEmpty]: Start isEmpty. Operand 28640 states and 34202 transitions. [2021-11-05 21:40:46,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-05 21:40:46,567 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:40:46,567 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] [2021-11-05 21:40:46,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 21:40:46,568 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 21:40:46,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:40:46,568 INFO L85 PathProgramCache]: Analyzing trace with hash -2005290015, now seen corresponding path program 1 times [2021-11-05 21:40:46,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:40:46,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985088089] [2021-11-05 21:40:46,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:40:46,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:40:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:40:46,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:40:46,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:40:46,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985088089] [2021-11-05 21:40:46,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985088089] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:40:46,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:40:46,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:40:46,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283267535] [2021-11-05 21:40:46,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:40:46,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 21:40:46,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:40:46,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 21:40:46,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 21:40:46,724 INFO L87 Difference]: Start difference. First operand 28640 states and 34202 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) [2021-11-05 21:40:47,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:40:47,454 INFO L93 Difference]: Finished difference Result 28640 states and 34202 transitions. [2021-11-05 21:40:47,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 21:40:47,454 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 [2021-11-05 21:40:47,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:40:47,525 INFO L225 Difference]: With dead ends: 28640 [2021-11-05 21:40:47,525 INFO L226 Difference]: Without dead ends: 28636 [2021-11-05 21:40:47,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.64ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 21:40:47,545 INFO L933 BasicCegarLoop]: 34194 mSDtfsCounter, 34170 mSDsluCounter, 34130 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34170 SdHoareTripleChecker+Valid, 68324 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.26ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.25ms IncrementalHoareTripleChecker+Time [2021-11-05 21:40:47,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34170 Valid, 68324 Invalid, 72 Unknown, 0 Unchecked, 49.26ms Time], IncrementalHoareTripleChecker [26 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 86.25ms Time] [2021-11-05 21:40:47,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28636 states. [2021-11-05 21:40:48,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28636 to 28636. [2021-11-05 21:40:48,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28636 states, 28575 states have (on average 1.1967804024496937) internal successors, (34198), 28635 states have internal predecessors, (34198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:48,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28636 states to 28636 states and 34198 transitions. [2021-11-05 21:40:48,388 INFO L78 Accepts]: Start accepts. Automaton has 28636 states and 34198 transitions. Word has length 31 [2021-11-05 21:40:48,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:40:48,389 INFO L470 AbstractCegarLoop]: Abstraction has 28636 states and 34198 transitions. [2021-11-05 21:40:48,389 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) [2021-11-05 21:40:48,389 INFO L276 IsEmpty]: Start isEmpty. Operand 28636 states and 34198 transitions. [2021-11-05 21:40:48,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-05 21:40:48,390 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:40:48,390 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] [2021-11-05 21:40:48,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 21:40:48,391 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 21:40:48,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:40:48,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1358920804, now seen corresponding path program 1 times [2021-11-05 21:40:48,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:40:48,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258712101] [2021-11-05 21:40:48,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:40:48,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:40:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:40:48,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:40:48,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:40:48,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258712101] [2021-11-05 21:40:48,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258712101] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:40:48,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:40:48,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:40:48,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493533638] [2021-11-05 21:40:48,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:40:48,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 21:40:48,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:40:48,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 21:40:48,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 21:40:48,672 INFO L87 Difference]: Start difference. First operand 28636 states and 34198 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) [2021-11-05 21:40:50,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:40:50,039 INFO L93 Difference]: Finished difference Result 28636 states and 34198 transitions. [2021-11-05 21:40:50,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 21:40:50,039 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 33 [2021-11-05 21:40:50,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:40:50,089 INFO L225 Difference]: With dead ends: 28636 [2021-11-05 21:40:50,090 INFO L226 Difference]: Without dead ends: 28632 [2021-11-05 21:40:50,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.92ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 21:40:50,104 INFO L933 BasicCegarLoop]: 34148 mSDtfsCounter, 1011 mSDsluCounter, 67152 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 469.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 101300 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 56.54ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 518.84ms IncrementalHoareTripleChecker+Time [2021-11-05 21:40:50,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1011 Valid, 101300 Invalid, 241 Unknown, 0 Unchecked, 56.54ms Time], IncrementalHoareTripleChecker [48 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 518.84ms Time] [2021-11-05 21:40:50,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28632 states. [2021-11-05 21:40:50,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28632 to 28632. [2021-11-05 21:40:50,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28632 states, 28573 states have (on average 1.1967241801700907) internal successors, (34194), 28631 states have internal predecessors, (34194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:50,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28632 states to 28632 states and 34194 transitions. [2021-11-05 21:40:50,887 INFO L78 Accepts]: Start accepts. Automaton has 28632 states and 34194 transitions. Word has length 33 [2021-11-05 21:40:50,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:40:50,888 INFO L470 AbstractCegarLoop]: Abstraction has 28632 states and 34194 transitions. [2021-11-05 21:40:50,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-05 21:40:50,888 INFO L276 IsEmpty]: Start isEmpty. Operand 28632 states and 34194 transitions. [2021-11-05 21:40:50,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-05 21:40:50,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:40:50,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 21:40:50,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 21:40:50,890 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 21:40:50,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:40:50,891 INFO L85 PathProgramCache]: Analyzing trace with hash 255144295, now seen corresponding path program 1 times [2021-11-05 21:40:50,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:40:50,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551781193] [2021-11-05 21:40:50,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:40:50,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:40:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:40:51,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:40:51,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:40:51,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551781193] [2021-11-05 21:40:51,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551781193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:40:51,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:40:51,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:40:51,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057662615] [2021-11-05 21:40:51,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:40:51,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 21:40:51,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:40:51,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 21:40:51,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 21:40:51,032 INFO L87 Difference]: Start difference. First operand 28632 states and 34194 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:51,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:40:51,805 INFO L93 Difference]: Finished difference Result 28632 states and 34194 transitions. [2021-11-05 21:40:51,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 21:40:51,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-05 21:40:51,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:40:51,847 INFO L225 Difference]: With dead ends: 28632 [2021-11-05 21:40:51,847 INFO L226 Difference]: Without dead ends: 28628 [2021-11-05 21:40:51,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.45ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 21:40:51,859 INFO L933 BasicCegarLoop]: 34186 mSDtfsCounter, 34158 mSDsluCounter, 34126 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34158 SdHoareTripleChecker+Valid, 68312 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 53.43ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.63ms IncrementalHoareTripleChecker+Time [2021-11-05 21:40:51,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34158 Valid, 68312 Invalid, 68 Unknown, 0 Unchecked, 53.43ms Time], IncrementalHoareTripleChecker [26 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 61.63ms Time] [2021-11-05 21:40:51,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28628 states. [2021-11-05 21:40:52,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28628 to 28628. [2021-11-05 21:40:52,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28628 states, 28571 states have (on average 1.1966679500192503) internal successors, (34190), 28627 states have internal predecessors, (34190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:52,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28628 states to 28628 states and 34190 transitions. [2021-11-05 21:40:52,817 INFO L78 Accepts]: Start accepts. Automaton has 28628 states and 34190 transitions. Word has length 35 [2021-11-05 21:40:52,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:40:52,817 INFO L470 AbstractCegarLoop]: Abstraction has 28628 states and 34190 transitions. [2021-11-05 21:40:52,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:52,818 INFO L276 IsEmpty]: Start isEmpty. Operand 28628 states and 34190 transitions. [2021-11-05 21:40:52,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-05 21:40:52,820 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:40:52,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 21:40:52,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 21:40:52,822 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 21:40:52,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:40:52,823 INFO L85 PathProgramCache]: Analyzing trace with hash 382841578, now seen corresponding path program 1 times [2021-11-05 21:40:52,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:40:52,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26363088] [2021-11-05 21:40:52,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:40:52,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:40:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:40:52,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:40:52,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:40:52,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26363088] [2021-11-05 21:40:52,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26363088] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:40:52,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:40:52,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:40:52,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272039] [2021-11-05 21:40:52,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:40:52,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 21:40:52,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:40:52,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 21:40:52,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 21:40:52,967 INFO L87 Difference]: Start difference. First operand 28628 states and 34190 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:53,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:40:53,889 INFO L93 Difference]: Finished difference Result 28628 states and 34190 transitions. [2021-11-05 21:40:53,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 21:40:53,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2021-11-05 21:40:53,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:40:53,935 INFO L225 Difference]: With dead ends: 28628 [2021-11-05 21:40:53,935 INFO L226 Difference]: Without dead ends: 28624 [2021-11-05 21:40:53,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.57ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 21:40:53,950 INFO L933 BasicCegarLoop]: 34182 mSDtfsCounter, 34152 mSDsluCounter, 34124 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34152 SdHoareTripleChecker+Valid, 68306 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.18ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.28ms IncrementalHoareTripleChecker+Time [2021-11-05 21:40:53,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34152 Valid, 68306 Invalid, 66 Unknown, 0 Unchecked, 54.18ms Time], IncrementalHoareTripleChecker [26 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 64.28ms Time] [2021-11-05 21:40:53,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28624 states. [2021-11-05 21:40:54,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28624 to 28624. [2021-11-05 21:40:54,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28624 states, 28569 states have (on average 1.1966117119955195) internal successors, (34186), 28623 states have internal predecessors, (34186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:54,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28624 states to 28624 states and 34186 transitions. [2021-11-05 21:40:54,842 INFO L78 Accepts]: Start accepts. Automaton has 28624 states and 34186 transitions. Word has length 37 [2021-11-05 21:40:54,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:40:54,842 INFO L470 AbstractCegarLoop]: Abstraction has 28624 states and 34186 transitions. [2021-11-05 21:40:54,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:54,842 INFO L276 IsEmpty]: Start isEmpty. Operand 28624 states and 34186 transitions. [2021-11-05 21:40:54,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-05 21:40:54,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:40:54,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 21:40:54,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 21:40:54,844 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 21:40:54,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:40:54,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1454120723, now seen corresponding path program 1 times [2021-11-05 21:40:54,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:40:54,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260060021] [2021-11-05 21:40:54,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:40:54,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:40:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:40:55,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:40:55,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:40:55,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260060021] [2021-11-05 21:40:55,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260060021] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:40:55,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:40:55,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:40:55,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152960950] [2021-11-05 21:40:55,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:40:55,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 21:40:55,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:40:55,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 21:40:55,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 21:40:55,008 INFO L87 Difference]: Start difference. First operand 28624 states and 34186 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:56,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:40:56,326 INFO L93 Difference]: Finished difference Result 28624 states and 34186 transitions. [2021-11-05 21:40:56,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 21:40:56,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2021-11-05 21:40:56,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:40:56,372 INFO L225 Difference]: With dead ends: 28624 [2021-11-05 21:40:56,372 INFO L226 Difference]: Without dead ends: 28620 [2021-11-05 21:40:56,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.78ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 21:40:56,387 INFO L933 BasicCegarLoop]: 34178 mSDtfsCounter, 34146 mSDsluCounter, 34122 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34146 SdHoareTripleChecker+Valid, 68300 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 66.15ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.18ms IncrementalHoareTripleChecker+Time [2021-11-05 21:40:56,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34146 Valid, 68300 Invalid, 64 Unknown, 0 Unchecked, 66.15ms Time], IncrementalHoareTripleChecker [26 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 69.18ms Time] [2021-11-05 21:40:56,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28620 states. [2021-11-05 21:40:57,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28620 to 28620. [2021-11-05 21:40:57,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28620 states, 28567 states have (on average 1.196555466097245) internal successors, (34182), 28619 states have internal predecessors, (34182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:57,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28620 states to 28620 states and 34182 transitions. [2021-11-05 21:40:57,381 INFO L78 Accepts]: Start accepts. Automaton has 28620 states and 34182 transitions. Word has length 39 [2021-11-05 21:40:57,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:40:57,381 INFO L470 AbstractCegarLoop]: Abstraction has 28620 states and 34182 transitions. [2021-11-05 21:40:57,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:57,381 INFO L276 IsEmpty]: Start isEmpty. Operand 28620 states and 34182 transitions. [2021-11-05 21:40:57,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-05 21:40:57,382 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:40:57,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 21:40:57,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 21:40:57,382 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 21:40:57,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:40:57,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1543333008, now seen corresponding path program 1 times [2021-11-05 21:40:57,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:40:57,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649645498] [2021-11-05 21:40:57,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:40:57,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:40:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:40:57,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:40:57,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:40:57,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649645498] [2021-11-05 21:40:57,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649645498] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:40:57,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:40:57,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:40:57,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90748307] [2021-11-05 21:40:57,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:40:57,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 21:40:57,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:40:57,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 21:40:57,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 21:40:57,513 INFO L87 Difference]: Start difference. First operand 28620 states and 34182 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:58,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:40:58,579 INFO L93 Difference]: Finished difference Result 28620 states and 34182 transitions. [2021-11-05 21:40:58,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 21:40:58,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2021-11-05 21:40:58,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:40:58,619 INFO L225 Difference]: With dead ends: 28620 [2021-11-05 21:40:58,619 INFO L226 Difference]: Without dead ends: 28616 [2021-11-05 21:40:58,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.81ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 21:40:58,627 INFO L933 BasicCegarLoop]: 34174 mSDtfsCounter, 34140 mSDsluCounter, 34120 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34140 SdHoareTripleChecker+Valid, 68294 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 51.73ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.84ms IncrementalHoareTripleChecker+Time [2021-11-05 21:40:58,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34140 Valid, 68294 Invalid, 62 Unknown, 0 Unchecked, 51.73ms Time], IncrementalHoareTripleChecker [26 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 57.84ms Time] [2021-11-05 21:40:58,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28616 states. [2021-11-05 21:40:59,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28616 to 28616. [2021-11-05 21:40:59,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28616 states, 28565 states have (on average 1.1964992123227727) internal successors, (34178), 28615 states have internal predecessors, (34178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:59,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28616 states to 28616 states and 34178 transitions. [2021-11-05 21:40:59,601 INFO L78 Accepts]: Start accepts. Automaton has 28616 states and 34178 transitions. Word has length 41 [2021-11-05 21:40:59,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:40:59,601 INFO L470 AbstractCegarLoop]: Abstraction has 28616 states and 34178 transitions. [2021-11-05 21:40:59,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:40:59,602 INFO L276 IsEmpty]: Start isEmpty. Operand 28616 states and 34178 transitions. [2021-11-05 21:40:59,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-05 21:40:59,602 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:40:59,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 21:40:59,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 21:40:59,603 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-05 21:40:59,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:40:59,603 INFO L85 PathProgramCache]: Analyzing trace with hash 210955841, now seen corresponding path program 1 times [2021-11-05 21:40:59,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:40:59,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650450799] [2021-11-05 21:40:59,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:40:59,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:40:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:40:59,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:40:59,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:40:59,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650450799] [2021-11-05 21:40:59,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650450799] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:40:59,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:40:59,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:40:59,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6221367] [2021-11-05 21:40:59,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:40:59,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 21:40:59,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:40:59,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 21:40:59,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 21:40:59,771 INFO L87 Difference]: Start difference. First operand 28616 states and 34178 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:41:01,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:41:01,724 INFO L93 Difference]: Finished difference Result 29034 states and 34697 transitions. [2021-11-05 21:41:01,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 21:41:01,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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 42 [2021-11-05 21:41:01,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted.