./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.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_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.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 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 20:21:30,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:21:30,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:21:30,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:21:30,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:21:30,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:21:30,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:21:30,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:21:30,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:21:30,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:21:30,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:21:30,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:21:30,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:21:30,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:21:30,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:21:30,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:21:30,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:21:30,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:21:30,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:21:30,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:21:30,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:21:30,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:21:30,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:21:30,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:21:30,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:21:30,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:21:30,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:21:30,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:21:30,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:21:30,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:21:30,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:21:30,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:21:30,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:21:30,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:21:30,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:21:30,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:21:30,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:21:30,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:21:30,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:21:30,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:21:30,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:21:30,761 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:21:30,788 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:21:30,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:21:30,790 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:21:30,790 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:21:30,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:21:30,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:21:30,792 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:21:30,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:21:30,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:21:30,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:21:30,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:21:30,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:21:30,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:21:30,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:21:30,793 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:21:30,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:21:30,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:21:30,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:21:30,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:21:30,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:21:30,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:21:30,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:21:30,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:21:30,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:21:30,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:21:30,795 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:21:30,795 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:21:30,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:21:30,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:21:30,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 [2021-11-05 20:21:31,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:21:31,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:21:31,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:21:31,077 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:21:31,078 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:21:31,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-05 20:21:31,139 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd55649d1/45bb82c97f1c42a8abe64c998a4f2790/FLAG794e10f71 [2021-11-05 20:21:31,804 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:21:31,804 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-05 20:21:31,842 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd55649d1/45bb82c97f1c42a8abe64c998a4f2790/FLAG794e10f71 [2021-11-05 20:21:32,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd55649d1/45bb82c97f1c42a8abe64c998a4f2790 [2021-11-05 20:21:32,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:21:32,169 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:21:32,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:21:32,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:21:32,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:21:32,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:21:32" (1/1) ... [2021-11-05 20:21:32,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e13e343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:32, skipping insertion in model container [2021-11-05 20:21:32,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:21:32" (1/1) ... [2021-11-05 20:21:32,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:21:32,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:21:33,710 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2021-11-05 20:21:33,713 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2021-11-05 20:21:33,713 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2021-11-05 20:21:33,713 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2021-11-05 20:21:33,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:21:33,776 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:21:34,013 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2021-11-05 20:21:34,015 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2021-11-05 20:21:34,015 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2021-11-05 20:21:34,015 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2021-11-05 20:21:34,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:21:34,147 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:21:34,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:34 WrapperNode [2021-11-05 20:21:34,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:21:34,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:21:34,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:21:34,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:21:34,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:34" (1/1) ... [2021-11-05 20:21:34,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:34" (1/1) ... [2021-11-05 20:21:34,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:21:34,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:21:34,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:21:34,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:21:34,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:34" (1/1) ... [2021-11-05 20:21:34,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:34" (1/1) ... [2021-11-05 20:21:34,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:34" (1/1) ... [2021-11-05 20:21:34,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:34" (1/1) ... [2021-11-05 20:21:35,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:34" (1/1) ... [2021-11-05 20:21:35,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:34" (1/1) ... [2021-11-05 20:21:35,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:34" (1/1) ... [2021-11-05 20:21:35,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:21:35,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:21:35,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:21:35,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:21:35,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:34" (1/1) ... [2021-11-05 20:21:35,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:21:35,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:21:35,741 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 20:21:35,743 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 20:21:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 20:21:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:21:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:21:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:21:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:21:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:21:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 20:21:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:21:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:21:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:21:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:21:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:21:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-05 20:21:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:21:35,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:21:35,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:21:45,641 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 20:21:45,642 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 20:21:45,642 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:21:45,642 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 20:21:45,643 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:21:45,643 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:21:45,666 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:21:45,667 INFO L299 CfgBuilder]: Removed 4958 assume(true) statements. [2021-11-05 20:21:45,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:21:45 BoogieIcfgContainer [2021-11-05 20:21:45,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:21:45,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:21:45,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:21:45,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:21:45,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:21:32" (1/3) ... [2021-11-05 20:21:45,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d75cda5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:21:45, skipping insertion in model container [2021-11-05 20:21:45,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:34" (2/3) ... [2021-11-05 20:21:45,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d75cda5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:21:45, skipping insertion in model container [2021-11-05 20:21:45,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:21:45" (3/3) ... [2021-11-05 20:21:45,679 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-05 20:21:45,682 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:21:45,682 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2021-11-05 20:21:45,735 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:21:45,745 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 20:21:45,747 INFO L340 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2021-11-05 20:21:45,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 4079 states, 4055 states have (on average 1.3023427866831072) internal successors, (5281), 4078 states have internal predecessors, (5281), 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 20:21:45,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-05 20:21:45,814 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:21:45,815 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 20:21:45,816 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-05 20:21:45,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:21:45,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1375132322, now seen corresponding path program 1 times [2021-11-05 20:21:45,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:21:45,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076773115] [2021-11-05 20:21:45,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:21:45,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:21:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:21:46,253 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 20:21:46,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:21:46,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076773115] [2021-11-05 20:21:46,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076773115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:21:46,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:21:46,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:21:46,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896505802] [2021-11-05 20:21:46,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:21:46,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:21:46,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:21:46,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:21:46,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:21:46,293 INFO L87 Difference]: Start difference. First operand has 4079 states, 4055 states have (on average 1.3023427866831072) internal successors, (5281), 4078 states have internal predecessors, (5281), 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 13.666666666666666) 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 20:21:46,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:21:46,994 INFO L93 Difference]: Finished difference Result 11185 states and 14484 transitions. [2021-11-05 20:21:46,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:21:46,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) 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 20:21:46,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:21:47,035 INFO L225 Difference]: With dead ends: 11185 [2021-11-05 20:21:47,035 INFO L226 Difference]: Without dead ends: 6960 [2021-11-05 20:21:47,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.34ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:21:47,053 INFO L933 BasicCegarLoop]: 5085 mSDtfsCounter, 4022 mSDsluCounter, 5031 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 411.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4022 SdHoareTripleChecker+Valid, 10116 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.97ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 452.07ms IncrementalHoareTripleChecker+Time [2021-11-05 20:21:47,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4022 Valid, 10116 Invalid, 68 Unknown, 0 Unchecked, 25.97ms Time], IncrementalHoareTripleChecker [9 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 452.07ms Time] [2021-11-05 20:21:47,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6960 states. [2021-11-05 20:21:47,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6960 to 6615. [2021-11-05 20:21:47,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6615 states, 6591 states have (on average 1.252465483234714) internal successors, (8255), 6614 states have internal predecessors, (8255), 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 20:21:47,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6615 states to 6615 states and 8255 transitions. [2021-11-05 20:21:47,272 INFO L78 Accepts]: Start accepts. Automaton has 6615 states and 8255 transitions. Word has length 41 [2021-11-05 20:21:47,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:21:47,273 INFO L470 AbstractCegarLoop]: Abstraction has 6615 states and 8255 transitions. [2021-11-05 20:21:47,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) 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 20:21:47,274 INFO L276 IsEmpty]: Start isEmpty. Operand 6615 states and 8255 transitions. [2021-11-05 20:21:47,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-05 20:21:47,279 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:21:47,279 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 20:21:47,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:21:47,280 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-05 20:21:47,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:21:47,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1114883933, now seen corresponding path program 1 times [2021-11-05 20:21:47,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:21:47,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815046130] [2021-11-05 20:21:47,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:21:47,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:21:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:21:47,406 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 20:21:47,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:21:47,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815046130] [2021-11-05 20:21:47,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815046130] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:21:47,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:21:47,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:21:47,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801558293] [2021-11-05 20:21:47,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:21:47,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:21:47,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:21:47,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:21:47,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:21:47,413 INFO L87 Difference]: Start difference. First operand 6615 states and 8255 transitions. Second operand has 3 states, 3 states have (on average 14.0) 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 20:21:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:21:48,011 INFO L93 Difference]: Finished difference Result 19575 states and 24476 transitions. [2021-11-05 20:21:48,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:21:48,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) 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 20:21:48,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:21:48,050 INFO L225 Difference]: With dead ends: 19575 [2021-11-05 20:21:48,051 INFO L226 Difference]: Without dead ends: 13028 [2021-11-05 20:21:48,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.30ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:21:48,069 INFO L933 BasicCegarLoop]: 4830 mSDtfsCounter, 4675 mSDsluCounter, 4792 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 322.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4675 SdHoareTripleChecker+Valid, 9622 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.31ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 354.64ms IncrementalHoareTripleChecker+Time [2021-11-05 20:21:48,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4675 Valid, 9622 Invalid, 34 Unknown, 0 Unchecked, 14.31ms Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 354.64ms Time] [2021-11-05 20:21:48,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13028 states. [2021-11-05 20:21:48,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13028 to 13004. [2021-11-05 20:21:48,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13004 states, 12980 states have (on average 1.2535439137134052) internal successors, (16271), 13003 states have internal predecessors, (16271), 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 20:21:48,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13004 states to 13004 states and 16271 transitions. [2021-11-05 20:21:48,506 INFO L78 Accepts]: Start accepts. Automaton has 13004 states and 16271 transitions. Word has length 42 [2021-11-05 20:21:48,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:21:48,507 INFO L470 AbstractCegarLoop]: Abstraction has 13004 states and 16271 transitions. [2021-11-05 20:21:48,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) 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 20:21:48,507 INFO L276 IsEmpty]: Start isEmpty. Operand 13004 states and 16271 transitions. [2021-11-05 20:21:48,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-05 20:21:48,508 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:21:48,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:21:48,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:21:48,509 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-05 20:21:48,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:21:48,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1793047480, now seen corresponding path program 1 times [2021-11-05 20:21:48,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:21:48,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472655306] [2021-11-05 20:21:48,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:21:48,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:21:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:21:48,584 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 20:21:48,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:21:48,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472655306] [2021-11-05 20:21:48,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472655306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:21:48,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:21:48,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:21:48,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890563565] [2021-11-05 20:21:48,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:21:48,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:21:48,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:21:48,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:21:48,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:21:48,587 INFO L87 Difference]: Start difference. First operand 13004 states and 16271 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 20:21:49,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:21:49,429 INFO L93 Difference]: Finished difference Result 22789 states and 28625 transitions. [2021-11-05 20:21:49,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:21:49,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2021-11-05 20:21:49,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:21:49,468 INFO L225 Difference]: With dead ends: 22789 [2021-11-05 20:21:49,469 INFO L226 Difference]: Without dead ends: 9853 [2021-11-05 20:21:49,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:21:49,488 INFO L933 BasicCegarLoop]: 5745 mSDtfsCounter, 2046 mSDsluCounter, 4745 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 511.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2046 SdHoareTripleChecker+Valid, 10490 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.10ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 571.36ms IncrementalHoareTripleChecker+Time [2021-11-05 20:21:49,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2046 Valid, 10490 Invalid, 100 Unknown, 0 Unchecked, 8.10ms Time], IncrementalHoareTripleChecker [21 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 571.36ms Time] [2021-11-05 20:21:49,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9853 states. [2021-11-05 20:21:49,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9853 to 9799. [2021-11-05 20:21:49,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9799 states, 9775 states have (on average 1.2620971867007673) internal successors, (12337), 9798 states have internal predecessors, (12337), 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 20:21:49,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9799 states to 9799 states and 12337 transitions. [2021-11-05 20:21:49,658 INFO L78 Accepts]: Start accepts. Automaton has 9799 states and 12337 transitions. Word has length 48 [2021-11-05 20:21:49,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:21:49,659 INFO L470 AbstractCegarLoop]: Abstraction has 9799 states and 12337 transitions. [2021-11-05 20:21:49,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 20:21:49,660 INFO L276 IsEmpty]: Start isEmpty. Operand 9799 states and 12337 transitions. [2021-11-05 20:21:49,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-05 20:21:49,661 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:21:49,661 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:21:49,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:21:49,662 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-05 20:21:49,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:21:49,663 INFO L85 PathProgramCache]: Analyzing trace with hash -83071518, now seen corresponding path program 1 times [2021-11-05 20:21:49,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:21:49,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998934421] [2021-11-05 20:21:49,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:21:49,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:21:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:21:49,773 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:21:49,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:21:49,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998934421] [2021-11-05 20:21:49,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998934421] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:21:49,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:21:49,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:21:49,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838925942] [2021-11-05 20:21:49,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:21:49,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:21:49,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:21:49,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:21:49,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:21:49,775 INFO L87 Difference]: Start difference. First operand 9799 states and 12337 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 20:21:50,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:21:50,427 INFO L93 Difference]: Finished difference Result 27459 states and 34586 transitions. [2021-11-05 20:21:50,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:21:50,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2021-11-05 20:21:50,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:21:50,465 INFO L225 Difference]: With dead ends: 27459 [2021-11-05 20:21:50,465 INFO L226 Difference]: Without dead ends: 18527 [2021-11-05 20:21:50,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.43ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:21:50,487 INFO L933 BasicCegarLoop]: 5855 mSDtfsCounter, 4654 mSDsluCounter, 4811 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 349.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4654 SdHoareTripleChecker+Valid, 10666 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.27ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 381.61ms IncrementalHoareTripleChecker+Time [2021-11-05 20:21:50,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4654 Valid, 10666 Invalid, 30 Unknown, 0 Unchecked, 10.27ms Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 381.61ms Time] [2021-11-05 20:21:50,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18527 states. [2021-11-05 20:21:50,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18527 to 18503. [2021-11-05 20:21:50,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18503 states, 18479 states have (on average 1.2619189350073057) internal successors, (23319), 18502 states have internal predecessors, (23319), 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 20:21:50,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18503 states to 18503 states and 23319 transitions. [2021-11-05 20:21:50,865 INFO L78 Accepts]: Start accepts. Automaton has 18503 states and 23319 transitions. Word has length 71 [2021-11-05 20:21:50,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:21:50,865 INFO L470 AbstractCegarLoop]: Abstraction has 18503 states and 23319 transitions. [2021-11-05 20:21:50,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 20:21:50,865 INFO L276 IsEmpty]: Start isEmpty. Operand 18503 states and 23319 transitions. [2021-11-05 20:21:50,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-05 20:21:50,867 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:21:50,868 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:21:50,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 20:21:50,868 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-05 20:21:50,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:21:50,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1362935196, now seen corresponding path program 1 times [2021-11-05 20:21:50,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:21:50,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267653388] [2021-11-05 20:21:50,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:21:50,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:21:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:21:51,018 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:21:51,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:21:51,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267653388] [2021-11-05 20:21:51,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267653388] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:21:51,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:21:51,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:21:51,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111591263] [2021-11-05 20:21:51,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:21:51,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:21:51,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:21:51,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:21:51,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:21:51,021 INFO L87 Difference]: Start difference. First operand 18503 states and 23319 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 20:21:52,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:21:52,131 INFO L93 Difference]: Finished difference Result 44871 states and 56558 transitions. [2021-11-05 20:21:52,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:21:52,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2021-11-05 20:21:52,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:21:52,198 INFO L225 Difference]: With dead ends: 44871 [2021-11-05 20:21:52,199 INFO L226 Difference]: Without dead ends: 27235 [2021-11-05 20:21:52,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.41ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:21:52,233 INFO L933 BasicCegarLoop]: 9485 mSDtfsCounter, 4668 mSDsluCounter, 4798 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 699.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4668 SdHoareTripleChecker+Valid, 14283 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.37ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 757.73ms IncrementalHoareTripleChecker+Time [2021-11-05 20:21:52,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4668 Valid, 14283 Invalid, 32 Unknown, 0 Unchecked, 10.37ms Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 757.73ms Time] [2021-11-05 20:21:52,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27235 states. [2021-11-05 20:21:52,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27235 to 27190. [2021-11-05 20:21:52,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27190 states, 27166 states have (on average 1.262018699845395) internal successors, (34284), 27189 states have internal predecessors, (34284), 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 20:21:52,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27190 states to 27190 states and 34284 transitions. [2021-11-05 20:21:52,807 INFO L78 Accepts]: Start accepts. Automaton has 27190 states and 34284 transitions. Word has length 71 [2021-11-05 20:21:52,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:21:52,807 INFO L470 AbstractCegarLoop]: Abstraction has 27190 states and 34284 transitions. [2021-11-05 20:21:52,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 20:21:52,808 INFO L276 IsEmpty]: Start isEmpty. Operand 27190 states and 34284 transitions. [2021-11-05 20:21:52,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-05 20:21:52,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:21:52,810 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:21:52,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 20:21:52,810 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-05 20:21:52,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:21:52,811 INFO L85 PathProgramCache]: Analyzing trace with hash -2047198752, now seen corresponding path program 1 times [2021-11-05 20:21:52,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:21:52,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915551042] [2021-11-05 20:21:52,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:21:52,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:21:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:21:52,967 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:21:52,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:21:52,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915551042] [2021-11-05 20:21:52,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915551042] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:21:52,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:21:52,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 20:21:52,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39975584] [2021-11-05 20:21:52,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:21:52,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:21:52,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:21:52,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:21:52,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:21:52,970 INFO L87 Difference]: Start difference. First operand 27190 states and 34284 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 20:21:53,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:21:53,426 INFO L93 Difference]: Finished difference Result 27190 states and 34284 transitions. [2021-11-05 20:21:53,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:21:53,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 72 [2021-11-05 20:21:53,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:21:53,480 INFO L225 Difference]: With dead ends: 27190 [2021-11-05 20:21:53,481 INFO L226 Difference]: Without dead ends: 27184 [2021-11-05 20:21:53,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.12ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:21:53,494 INFO L933 BasicCegarLoop]: 4825 mSDtfsCounter, 4774 mSDsluCounter, 4801 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4774 SdHoareTripleChecker+Valid, 9626 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.13ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.98ms IncrementalHoareTripleChecker+Time [2021-11-05 20:21:53,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4774 Valid, 9626 Invalid, 35 Unknown, 0 Unchecked, 11.13ms Time], IncrementalHoareTripleChecker [11 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 47.98ms Time] [2021-11-05 20:21:53,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27184 states. [2021-11-05 20:21:54,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27184 to 27184. [2021-11-05 20:21:54,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27184 states, 27163 states have (on average 1.2619371939771011) internal successors, (34278), 27183 states have internal predecessors, (34278), 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 20:21:54,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27184 states to 27184 states and 34278 transitions. [2021-11-05 20:21:54,116 INFO L78 Accepts]: Start accepts. Automaton has 27184 states and 34278 transitions. Word has length 72 [2021-11-05 20:21:54,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:21:54,117 INFO L470 AbstractCegarLoop]: Abstraction has 27184 states and 34278 transitions. [2021-11-05 20:21:54,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 20:21:54,118 INFO L276 IsEmpty]: Start isEmpty. Operand 27184 states and 34278 transitions. [2021-11-05 20:21:54,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-05 20:21:54,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:21:54,120 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:21:54,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 20:21:54,120 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-05 20:21:54,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:21:54,121 INFO L85 PathProgramCache]: Analyzing trace with hash -262838269, now seen corresponding path program 1 times [2021-11-05 20:21:54,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:21:54,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109494714] [2021-11-05 20:21:54,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:21:54,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:21:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:21:54,274 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:21:54,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:21:54,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109494714] [2021-11-05 20:21:54,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109494714] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:21:54,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:21:54,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 20:21:54,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304019466] [2021-11-05 20:21:54,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:21:54,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:21:54,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:21:54,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:21:54,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:21:54,277 INFO L87 Difference]: Start difference. First operand 27184 states and 34278 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 20:21:54,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:21:54,786 INFO L93 Difference]: Finished difference Result 27184 states and 34278 transitions. [2021-11-05 20:21:54,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:21:54,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 74 [2021-11-05 20:21:54,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:21:54,839 INFO L225 Difference]: With dead ends: 27184 [2021-11-05 20:21:54,840 INFO L226 Difference]: Without dead ends: 27178 [2021-11-05 20:21:54,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.77ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:21:54,850 INFO L933 BasicCegarLoop]: 4819 mSDtfsCounter, 4763 mSDsluCounter, 4798 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4763 SdHoareTripleChecker+Valid, 9617 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.38ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.77ms IncrementalHoareTripleChecker+Time [2021-11-05 20:21:54,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4763 Valid, 9617 Invalid, 35 Unknown, 0 Unchecked, 10.38ms Time], IncrementalHoareTripleChecker [14 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 47.77ms Time] [2021-11-05 20:21:54,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27178 states. [2021-11-05 20:21:55,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27178 to 27178. [2021-11-05 20:21:55,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27178 states, 27160 states have (on average 1.2618556701030927) internal successors, (34272), 27177 states have internal predecessors, (34272), 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 20:21:55,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27178 states to 27178 states and 34272 transitions. [2021-11-05 20:21:55,411 INFO L78 Accepts]: Start accepts. Automaton has 27178 states and 34272 transitions. Word has length 74 [2021-11-05 20:21:55,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:21:55,411 INFO L470 AbstractCegarLoop]: Abstraction has 27178 states and 34272 transitions. [2021-11-05 20:21:55,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 20:21:55,411 INFO L276 IsEmpty]: Start isEmpty. Operand 27178 states and 34272 transitions. [2021-11-05 20:21:55,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-05 20:21:55,413 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:21:55,414 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:21:55,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 20:21:55,414 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-05 20:21:55,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:21:55,414 INFO L85 PathProgramCache]: Analyzing trace with hash 815635110, now seen corresponding path program 1 times [2021-11-05 20:21:55,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:21:55,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194534755] [2021-11-05 20:21:55,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:21:55,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:21:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:21:55,528 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:21:55,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:21:55,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194534755] [2021-11-05 20:21:55,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194534755] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:21:55,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:21:55,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 20:21:55,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909823179] [2021-11-05 20:21:55,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:21:55,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:21:55,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:21:55,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:21:55,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:21:55,530 INFO L87 Difference]: Start difference. First operand 27178 states and 34272 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 20:21:55,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:21:55,913 INFO L93 Difference]: Finished difference Result 27178 states and 34272 transitions. [2021-11-05 20:21:55,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:21:55,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 76 [2021-11-05 20:21:55,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:21:55,961 INFO L225 Difference]: With dead ends: 27178 [2021-11-05 20:21:55,961 INFO L226 Difference]: Without dead ends: 27172 [2021-11-05 20:21:55,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.63ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:21:55,974 INFO L933 BasicCegarLoop]: 4807 mSDtfsCounter, 4712 mSDsluCounter, 4814 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4712 SdHoareTripleChecker+Valid, 9621 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.99ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.23ms IncrementalHoareTripleChecker+Time [2021-11-05 20:21:55,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4712 Valid, 9621 Invalid, 62 Unknown, 0 Unchecked, 6.99ms Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 68.23ms Time] [2021-11-05 20:21:56,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27172 states. [2021-11-05 20:21:56,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27172 to 27172. [2021-11-05 20:21:56,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27172 states, 27157 states have (on average 1.2617741282174024) internal successors, (34266), 27171 states have internal predecessors, (34266), 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 20:21:56,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27172 states to 27172 states and 34266 transitions. [2021-11-05 20:21:56,720 INFO L78 Accepts]: Start accepts. Automaton has 27172 states and 34266 transitions. Word has length 76 [2021-11-05 20:21:56,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:21:56,720 INFO L470 AbstractCegarLoop]: Abstraction has 27172 states and 34266 transitions. [2021-11-05 20:21:56,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 20:21:56,720 INFO L276 IsEmpty]: Start isEmpty. Operand 27172 states and 34266 transitions. [2021-11-05 20:21:56,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-05 20:21:56,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:21:56,723 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:21:56,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 20:21:56,723 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-05 20:21:56,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:21:56,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2141434313, now seen corresponding path program 1 times [2021-11-05 20:21:56,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:21:56,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988773663] [2021-11-05 20:21:56,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:21:56,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:21:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:21:56,859 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:21:56,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:21:56,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988773663] [2021-11-05 20:21:56,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988773663] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:21:56,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:21:56,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 20:21:56,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719697079] [2021-11-05 20:21:56,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:21:56,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:21:56,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:21:56,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:21:56,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:21:56,862 INFO L87 Difference]: Start difference. First operand 27172 states and 34266 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 20:21:57,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:21:57,352 INFO L93 Difference]: Finished difference Result 27172 states and 34266 transitions. [2021-11-05 20:21:57,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:21:57,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 78 [2021-11-05 20:21:57,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:21:57,397 INFO L225 Difference]: With dead ends: 27172 [2021-11-05 20:21:57,398 INFO L226 Difference]: Without dead ends: 26327 [2021-11-05 20:21:57,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.77ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:21:57,412 INFO L933 BasicCegarLoop]: 4810 mSDtfsCounter, 4744 mSDsluCounter, 4792 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4744 SdHoareTripleChecker+Valid, 9602 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.56ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.86ms IncrementalHoareTripleChecker+Time [2021-11-05 20:21:57,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4744 Valid, 9602 Invalid, 29 Unknown, 0 Unchecked, 8.56ms Time], IncrementalHoareTripleChecker [17 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 48.86ms Time] [2021-11-05 20:21:57,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26327 states. [2021-11-05 20:21:58,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26327 to 26327. [2021-11-05 20:21:58,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26327 states, 26315 states have (on average 1.2608018240547216) internal successors, (33178), 26326 states have internal predecessors, (33178), 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 20:21:58,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26327 states to 26327 states and 33178 transitions. [2021-11-05 20:21:58,095 INFO L78 Accepts]: Start accepts. Automaton has 26327 states and 33178 transitions. Word has length 78 [2021-11-05 20:21:58,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:21:58,096 INFO L470 AbstractCegarLoop]: Abstraction has 26327 states and 33178 transitions. [2021-11-05 20:21:58,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 20:21:58,096 INFO L276 IsEmpty]: Start isEmpty. Operand 26327 states and 33178 transitions. [2021-11-05 20:21:58,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-05 20:21:58,099 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:21:58,099 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:21:58,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 20:21:58,099 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-05 20:21:58,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:21:58,100 INFO L85 PathProgramCache]: Analyzing trace with hash 124598911, now seen corresponding path program 1 times [2021-11-05 20:21:58,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:21:58,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326534511] [2021-11-05 20:21:58,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:21:58,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:21:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:21:58,194 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:21:58,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:21:58,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326534511] [2021-11-05 20:21:58,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326534511] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:21:58,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:21:58,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:21:58,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213590507] [2021-11-05 20:21:58,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:21:58,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:21:58,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:21:58,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:21:58,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:21:58,196 INFO L87 Difference]: Start difference. First operand 26327 states and 33178 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 20:21:59,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:21:59,674 INFO L93 Difference]: Finished difference Result 58816 states and 74329 transitions. [2021-11-05 20:21:59,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:21:59,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2021-11-05 20:21:59,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:21:59,725 INFO L225 Difference]: With dead ends: 58816 [2021-11-05 20:21:59,725 INFO L226 Difference]: Without dead ends: 33356 [2021-11-05 20:21:59,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.29ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:21:59,758 INFO L933 BasicCegarLoop]: 6753 mSDtfsCounter, 1989 mSDsluCounter, 4704 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 628.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1989 SdHoareTripleChecker+Valid, 11457 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.33ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 681.48ms IncrementalHoareTripleChecker+Time [2021-11-05 20:21:59,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1989 Valid, 11457 Invalid, 86 Unknown, 0 Unchecked, 7.33ms Time], IncrementalHoareTripleChecker [15 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 681.48ms Time] [2021-11-05 20:21:59,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33356 states. [2021-11-05 20:22:00,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33356 to 33332. [2021-11-05 20:22:00,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33332 states, 33320 states have (on average 1.2649459783913566) internal successors, (42148), 33331 states have internal predecessors, (42148), 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 20:22:00,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33332 states to 33332 states and 42148 transitions. [2021-11-05 20:22:00,546 INFO L78 Accepts]: Start accepts. Automaton has 33332 states and 42148 transitions. Word has length 80 [2021-11-05 20:22:00,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:22:00,546 INFO L470 AbstractCegarLoop]: Abstraction has 33332 states and 42148 transitions. [2021-11-05 20:22:00,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 20:22:00,547 INFO L276 IsEmpty]: Start isEmpty. Operand 33332 states and 42148 transitions. [2021-11-05 20:22:00,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-05 20:22:00,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:22:00,555 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:22:00,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 20:22:00,555 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-05 20:22:00,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:22:00,556 INFO L85 PathProgramCache]: Analyzing trace with hash 512191264, now seen corresponding path program 1 times [2021-11-05 20:22:00,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:22:00,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042176262] [2021-11-05 20:22:00,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:22:00,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:22:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:22:00,649 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 20:22:00,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:22:00,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042176262] [2021-11-05 20:22:00,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042176262] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:22:00,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:22:00,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:22:00,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818168394] [2021-11-05 20:22:00,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:22:00,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:22:00,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:22:00,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:22:00,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:22:00,652 INFO L87 Difference]: Start difference. First operand 33332 states and 42148 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 20:22:01,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:22:01,839 INFO L93 Difference]: Finished difference Result 72802 states and 92221 transitions. [2021-11-05 20:22:01,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:22:01,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 117 [2021-11-05 20:22:01,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:22:01,894 INFO L225 Difference]: With dead ends: 72802 [2021-11-05 20:22:01,894 INFO L226 Difference]: Without dead ends: 39551 [2021-11-05 20:22:01,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.40ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:22:01,940 INFO L933 BasicCegarLoop]: 6754 mSDtfsCounter, 1983 mSDsluCounter, 4717 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 288.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1983 SdHoareTripleChecker+Valid, 11471 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.62ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 323.37ms IncrementalHoareTripleChecker+Time [2021-11-05 20:22:01,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1983 Valid, 11471 Invalid, 79 Unknown, 0 Unchecked, 6.62ms Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 323.37ms Time] [2021-11-05 20:22:01,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39551 states. [2021-11-05 20:22:02,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39551 to 39527. [2021-11-05 20:22:02,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39527 states, 39515 states have (on average 1.2672909021890422) internal successors, (50077), 39526 states have internal predecessors, (50077), 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 20:22:02,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39527 states to 39527 states and 50077 transitions. [2021-11-05 20:22:02,852 INFO L78 Accepts]: Start accepts. Automaton has 39527 states and 50077 transitions. Word has length 117 [2021-11-05 20:22:02,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:22:02,852 INFO L470 AbstractCegarLoop]: Abstraction has 39527 states and 50077 transitions. [2021-11-05 20:22:02,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 20:22:02,852 INFO L276 IsEmpty]: Start isEmpty. Operand 39527 states and 50077 transitions. [2021-11-05 20:22:02,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-05 20:22:02,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:22:02,861 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:22:02,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 20:22:02,861 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-05 20:22:02,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:22:02,862 INFO L85 PathProgramCache]: Analyzing trace with hash 934893090, now seen corresponding path program 1 times [2021-11-05 20:22:02,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:22:02,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779258795] [2021-11-05 20:22:02,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:22:02,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:22:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:22:02,943 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 20:22:02,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:22:02,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779258795] [2021-11-05 20:22:02,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779258795] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:22:02,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:22:02,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:22:02,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680090820] [2021-11-05 20:22:02,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:22:02,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:22:02,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:22:02,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:22:02,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:22:02,946 INFO L87 Difference]: Start difference. First operand 39527 states and 50077 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 20:22:04,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:22:04,642 INFO L93 Difference]: Finished difference Result 85210 states and 108115 transitions. [2021-11-05 20:22:04,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:22:04,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 117 [2021-11-05 20:22:04,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:22:04,710 INFO L225 Difference]: With dead ends: 85210 [2021-11-05 20:22:04,710 INFO L226 Difference]: Without dead ends: 46550 [2021-11-05 20:22:04,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:22:04,747 INFO L933 BasicCegarLoop]: 6754 mSDtfsCounter, 2795 mSDsluCounter, 3908 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 676.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2795 SdHoareTripleChecker+Valid, 10662 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.31ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 734.60ms IncrementalHoareTripleChecker+Time [2021-11-05 20:22:04,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2795 Valid, 10662 Invalid, 85 Unknown, 0 Unchecked, 6.31ms Time], IncrementalHoareTripleChecker [16 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 734.60ms Time] [2021-11-05 20:22:04,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46550 states. [2021-11-05 20:22:05,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46550 to 46526. [2021-11-05 20:22:05,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46526 states, 46514 states have (on average 1.269316764844993) internal successors, (59041), 46525 states have internal predecessors, (59041), 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 20:22:05,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46526 states to 46526 states and 59041 transitions. [2021-11-05 20:22:05,891 INFO L78 Accepts]: Start accepts. Automaton has 46526 states and 59041 transitions. Word has length 117 [2021-11-05 20:22:05,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:22:05,891 INFO L470 AbstractCegarLoop]: Abstraction has 46526 states and 59041 transitions. [2021-11-05 20:22:05,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 20:22:05,891 INFO L276 IsEmpty]: Start isEmpty. Operand 46526 states and 59041 transitions. [2021-11-05 20:22:05,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-05 20:22:05,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:22:05,906 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:22:05,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 20:22:05,906 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-05 20:22:05,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:22:05,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1208625008, now seen corresponding path program 1 times [2021-11-05 20:22:05,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:22:05,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480559700] [2021-11-05 20:22:05,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:22:05,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:22:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:22:05,995 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:22:05,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:22:05,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480559700] [2021-11-05 20:22:05,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480559700] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:22:05,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:22:05,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:22:05,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694332633] [2021-11-05 20:22:05,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:22:05,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:22:05,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:22:05,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:22:05,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:22:05,998 INFO L87 Difference]: Start difference. First operand 46526 states and 59041 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 20:22:07,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:22:07,793 INFO L93 Difference]: Finished difference Result 99196 states and 126019 transitions. [2021-11-05 20:22:07,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:22:07,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 152 [2021-11-05 20:22:07,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:22:07,869 INFO L225 Difference]: With dead ends: 99196 [2021-11-05 20:22:07,869 INFO L226 Difference]: Without dead ends: 53537 [2021-11-05 20:22:07,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.29ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:22:07,917 INFO L933 BasicCegarLoop]: 5824 mSDtfsCounter, 1986 mSDsluCounter, 4715 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 564.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1986 SdHoareTripleChecker+Valid, 10539 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.14ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 607.88ms IncrementalHoareTripleChecker+Time [2021-11-05 20:22:07,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1986 Valid, 10539 Invalid, 81 Unknown, 0 Unchecked, 6.14ms Time], IncrementalHoareTripleChecker [12 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 607.88ms Time] [2021-11-05 20:22:07,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53537 states. [2021-11-05 20:22:08,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53537 to 53513. [2021-11-05 20:22:09,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53513 states, 53501 states have (on average 1.2708734416179137) internal successors, (67993), 53512 states have internal predecessors, (67993), 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 20:22:09,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53513 states to 53513 states and 67993 transitions. [2021-11-05 20:22:09,108 INFO L78 Accepts]: Start accepts. Automaton has 53513 states and 67993 transitions. Word has length 152 [2021-11-05 20:22:09,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:22:09,108 INFO L470 AbstractCegarLoop]: Abstraction has 53513 states and 67993 transitions. [2021-11-05 20:22:09,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 20:22:09,108 INFO L276 IsEmpty]: Start isEmpty. Operand 53513 states and 67993 transitions. [2021-11-05 20:22:09,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-05 20:22:09,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:22:09,122 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:22:09,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 20:22:09,122 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-05 20:22:09,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:22:09,122 INFO L85 PathProgramCache]: Analyzing trace with hash -785923182, now seen corresponding path program 1 times [2021-11-05 20:22:09,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:22:09,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225517905] [2021-11-05 20:22:09,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:22:09,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:22:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:22:09,202 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:22:09,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:22:09,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225517905] [2021-11-05 20:22:09,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225517905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:22:09,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:22:09,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:22:09,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570176725] [2021-11-05 20:22:09,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:22:09,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:22:09,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:22:09,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:22:09,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:22:09,204 INFO L87 Difference]: Start difference. First operand 53513 states and 67993 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 20:22:11,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:22:11,224 INFO L93 Difference]: Finished difference Result 113176 states and 143935 transitions. [2021-11-05 20:22:11,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:22:11,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 152 [2021-11-05 20:22:11,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:22:11,325 INFO L225 Difference]: With dead ends: 113176 [2021-11-05 20:22:11,325 INFO L226 Difference]: Without dead ends: 60530 [2021-11-05 20:22:11,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.37ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:22:11,377 INFO L933 BasicCegarLoop]: 6754 mSDtfsCounter, 1995 mSDsluCounter, 4707 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 441.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1995 SdHoareTripleChecker+Valid, 11461 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.99ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 485.79ms IncrementalHoareTripleChecker+Time [2021-11-05 20:22:11,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1995 Valid, 11461 Invalid, 83 Unknown, 0 Unchecked, 6.99ms Time], IncrementalHoareTripleChecker [13 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 485.79ms Time] [2021-11-05 20:22:11,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60530 states. [2021-11-05 20:22:12,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60530 to 60506. [2021-11-05 20:22:12,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60506 states, 60494 states have (on average 1.2720435084471187) internal successors, (76951), 60505 states have internal predecessors, (76951), 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 20:22:12,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60506 states to 60506 states and 76951 transitions. [2021-11-05 20:22:12,803 INFO L78 Accepts]: Start accepts. Automaton has 60506 states and 76951 transitions. Word has length 152 [2021-11-05 20:22:12,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:22:12,803 INFO L470 AbstractCegarLoop]: Abstraction has 60506 states and 76951 transitions. [2021-11-05 20:22:12,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 20:22:12,804 INFO L276 IsEmpty]: Start isEmpty. Operand 60506 states and 76951 transitions. [2021-11-05 20:22:12,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-05 20:22:12,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:22:12,822 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:22:12,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-05 20:22:12,822 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 21 more)] === [2021-11-05 20:22:12,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:22:12,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1053030962, now seen corresponding path program 1 times [2021-11-05 20:22:12,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:22:12,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366058079] [2021-11-05 20:22:12,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:22:12,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:22:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:22:12,904 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-05 20:22:12,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:22:12,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366058079] [2021-11-05 20:22:12,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366058079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:22:12,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:22:12,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 20:22:12,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612264853] [2021-11-05 20:22:12,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:22:12,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:22:12,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:22:12,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:22:12,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:22:12,906 INFO L87 Difference]: Start difference. First operand 60506 states and 76951 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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 20:22:16,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:22:16,609 INFO L93 Difference]: Finished difference Result 186615 states and 237419 transitions. [2021-11-05 20:22:16,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 20:22:16,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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 179 [2021-11-05 20:22:16,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:22:16,823 INFO L225 Difference]: With dead ends: 186615 [2021-11-05 20:22:16,824 INFO L226 Difference]: Without dead ends: 126976 [2021-11-05 20:22:16,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.69ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:22:16,895 INFO L933 BasicCegarLoop]: 8944 mSDtfsCounter, 9609 mSDsluCounter, 13117 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 975.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9609 SdHoareTripleChecker+Valid, 22061 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.54ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1038.82ms IncrementalHoareTripleChecker+Time [2021-11-05 20:22:16,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9609 Valid, 22061 Invalid, 134 Unknown, 0 Unchecked, 18.54ms Time], IncrementalHoareTripleChecker [7 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 1038.82ms Time] [2021-11-05 20:22:16,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126976 states.