./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.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-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2689726c89c7be154f3b0bf0875aa4770854a9a3388665dc7aff0604f303b757 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 18:02:13,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 18:02:13,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 18:02:13,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 18:02:13,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 18:02:13,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 18:02:13,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 18:02:13,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 18:02:13,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 18:02:13,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 18:02:13,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 18:02:13,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 18:02:13,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 18:02:13,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 18:02:13,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 18:02:13,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 18:02:13,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 18:02:13,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 18:02:13,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 18:02:13,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 18:02:13,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 18:02:13,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 18:02:13,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 18:02:13,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 18:02:13,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 18:02:13,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 18:02:13,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 18:02:13,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 18:02:13,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 18:02:13,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 18:02:13,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 18:02:13,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 18:02:13,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 18:02:13,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 18:02:13,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 18:02:13,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 18:02:13,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 18:02:13,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 18:02:13,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 18:02:13,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 18:02:13,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 18:02:13,760 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 18:02:13,790 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 18:02:13,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 18:02:13,791 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 18:02:13,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 18:02:13,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 18:02:13,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 18:02:13,793 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 18:02:13,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 18:02:13,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 18:02:13,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 18:02:13,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 18:02:13,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 18:02:13,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 18:02:13,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 18:02:13,795 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 18:02:13,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 18:02:13,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 18:02:13,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 18:02:13,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 18:02:13,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 18:02:13,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 18:02:13,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 18:02:13,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 18:02:13,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 18:02:13,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 18:02:13,797 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 18:02:13,797 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 18:02:13,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 18:02:13,797 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 18:02:13,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2689726c89c7be154f3b0bf0875aa4770854a9a3388665dc7aff0604f303b757 [2021-11-05 18:02:14,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 18:02:14,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 18:02:14,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 18:02:14,084 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 18:02:14,085 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 18:02:14,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2021-11-05 18:02:14,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/572f5c193/39540894bfeb4418934ad14d56b328ff/FLAG027d774a5 [2021-11-05 18:02:14,772 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 18:02:14,773 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2021-11-05 18:02:14,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/572f5c193/39540894bfeb4418934ad14d56b328ff/FLAG027d774a5 [2021-11-05 18:02:15,109 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/572f5c193/39540894bfeb4418934ad14d56b328ff [2021-11-05 18:02:15,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 18:02:15,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 18:02:15,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 18:02:15,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 18:02:15,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 18:02:15,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 06:02:15" (1/1) ... [2021-11-05 18:02:15,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dea3d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:02:15, skipping insertion in model container [2021-11-05 18:02:15,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 06:02:15" (1/1) ... [2021-11-05 18:02:15,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 18:02:15,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 18:02:16,458 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i[258393,258406] [2021-11-05 18:02:16,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 18:02:16,592 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 18:02:16,943 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i[258393,258406] [2021-11-05 18:02:16,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 18:02:17,087 INFO L208 MainTranslator]: Completed translation [2021-11-05 18:02:17,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:02:17 WrapperNode [2021-11-05 18:02:17,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 18:02:17,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 18:02:17,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 18:02:17,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 18:02:17,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:02:17" (1/1) ... [2021-11-05 18:02:17,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:02:17" (1/1) ... [2021-11-05 18:02:17,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 18:02:17,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 18:02:17,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 18:02:17,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 18:02:17,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:02:17" (1/1) ... [2021-11-05 18:02:17,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:02:17" (1/1) ... [2021-11-05 18:02:17,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:02:17" (1/1) ... [2021-11-05 18:02:17,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:02:17" (1/1) ... [2021-11-05 18:02:17,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:02:17" (1/1) ... [2021-11-05 18:02:17,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:02:17" (1/1) ... [2021-11-05 18:02:17,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:02:17" (1/1) ... [2021-11-05 18:02:17,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 18:02:17,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 18:02:17,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 18:02:17,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 18:02:17,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:02:17" (1/1) ... [2021-11-05 18:02:17,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 18:02:17,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 18:02:17,836 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 18:02:17,868 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 18:02:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 18:02:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 18:02:17,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 18:02:17,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 18:02:17,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 18:02:17,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 18:02:17,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 18:02:17,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 18:02:17,880 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 18:02:17,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 18:02:17,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 18:02:17,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 18:02:48,755 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 18:02:48,755 INFO L299 CfgBuilder]: Removed 1850 assume(true) statements. [2021-11-05 18:02:48,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 06:02:48 BoogieIcfgContainer [2021-11-05 18:02:48,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 18:02:48,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 18:02:48,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 18:02:48,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 18:02:48,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 06:02:15" (1/3) ... [2021-11-05 18:02:48,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7051fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 06:02:48, skipping insertion in model container [2021-11-05 18:02:48,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:02:17" (2/3) ... [2021-11-05 18:02:48,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7051fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 06:02:48, skipping insertion in model container [2021-11-05 18:02:48,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 06:02:48" (3/3) ... [2021-11-05 18:02:48,763 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2021-11-05 18:02:48,767 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 18:02:48,767 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2021-11-05 18:02:48,816 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 18:02:48,821 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 18:02:48,822 INFO L340 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2021-11-05 18:02:48,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 1939 states, 1885 states have (on average 1.4482758620689655) internal successors, (2730), 1938 states have internal predecessors, (2730), 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 18:02:48,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-05 18:02:48,874 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:02:48,874 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] [2021-11-05 18:02:48,875 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-05 18:02:48,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:02:48,879 INFO L85 PathProgramCache]: Analyzing trace with hash 515534990, now seen corresponding path program 1 times [2021-11-05 18:02:48,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:02:48,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105182026] [2021-11-05 18:02:48,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:02:48,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:02:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:02:49,536 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 18:02:49,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:02:49,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105182026] [2021-11-05 18:02:49,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105182026] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:02:49,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:02:49,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 18:02:49,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670212536] [2021-11-05 18:02:49,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:02:49,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 18:02:49,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:02:49,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 18:02:49,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 18:02:49,567 INFO L87 Difference]: Start difference. First operand has 1939 states, 1885 states have (on average 1.4482758620689655) internal successors, (2730), 1938 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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 18:02:49,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:02:49,647 INFO L93 Difference]: Finished difference Result 3874 states and 5455 transitions. [2021-11-05 18:02:49,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 18:02:49,649 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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 34 [2021-11-05 18:02:49,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:02:49,667 INFO L225 Difference]: With dead ends: 3874 [2021-11-05 18:02:49,668 INFO L226 Difference]: Without dead ends: 1915 [2021-11-05 18:02:49,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 18:02:49,680 INFO L933 BasicCegarLoop]: 2618 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.24ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 18:02:49,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2618 Invalid, 0 Unknown, 0 Unchecked, 7.24ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 18:02:49,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2021-11-05 18:02:49,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1915. [2021-11-05 18:02:49,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1915 states, 1862 states have (on average 1.3823845327604727) internal successors, (2574), 1914 states have internal predecessors, (2574), 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 18:02:49,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2574 transitions. [2021-11-05 18:02:49,779 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2574 transitions. Word has length 34 [2021-11-05 18:02:49,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:02:49,780 INFO L470 AbstractCegarLoop]: Abstraction has 1915 states and 2574 transitions. [2021-11-05 18:02:49,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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 18:02:49,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2574 transitions. [2021-11-05 18:02:49,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-05 18:02:49,781 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:02:49,781 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] [2021-11-05 18:02:49,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 18:02:49,782 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-05 18:02:49,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:02:49,783 INFO L85 PathProgramCache]: Analyzing trace with hash -354019178, now seen corresponding path program 1 times [2021-11-05 18:02:49,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:02:49,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684537707] [2021-11-05 18:02:49,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:02:49,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:02:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:02:50,267 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 18:02:50,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:02:50,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684537707] [2021-11-05 18:02:50,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684537707] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:02:50,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:02:50,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:02:50,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119513779] [2021-11-05 18:02:50,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:02:50,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:02:50,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:02:50,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:02:50,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:02:50,270 INFO L87 Difference]: Start difference. First operand 1915 states and 2574 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 18:02:52,426 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:02:52,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:02:52,657 INFO L93 Difference]: Finished difference Result 5671 states and 7645 transitions. [2021-11-05 18:02:52,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:02:52,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2021-11-05 18:02:52,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:02:52,668 INFO L225 Difference]: With dead ends: 5671 [2021-11-05 18:02:52,669 INFO L226 Difference]: Without dead ends: 3776 [2021-11-05 18:02:52,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.74ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:02:52,672 INFO L933 BasicCegarLoop]: 2571 mSDtfsCounter, 2512 mSDsluCounter, 2554 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2214.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2512 SdHoareTripleChecker+Valid, 5125 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.83ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2295.19ms IncrementalHoareTripleChecker+Time [2021-11-05 18:02:52,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2512 Valid, 5125 Invalid, 15 Unknown, 0 Unchecked, 8.83ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2295.19ms Time] [2021-11-05 18:02:52,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2021-11-05 18:02:52,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 3672. [2021-11-05 18:02:52,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3619 states have (on average 1.3915446255871788) internal successors, (5036), 3671 states have internal predecessors, (5036), 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 18:02:52,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 5036 transitions. [2021-11-05 18:02:52,741 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 5036 transitions. Word has length 34 [2021-11-05 18:02:52,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:02:52,742 INFO L470 AbstractCegarLoop]: Abstraction has 3672 states and 5036 transitions. [2021-11-05 18:02:52,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 18:02:52,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 5036 transitions. [2021-11-05 18:02:52,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-05 18:02:52,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:02:52,748 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] [2021-11-05 18:02:52,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 18:02:52,750 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-05 18:02:52,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:02:52,751 INFO L85 PathProgramCache]: Analyzing trace with hash -199593292, now seen corresponding path program 1 times [2021-11-05 18:02:52,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:02:52,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372509433] [2021-11-05 18:02:52,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:02:52,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:02:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:02:53,108 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 18:02:53,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:02:53,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372509433] [2021-11-05 18:02:53,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372509433] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:02:53,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:02:53,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 18:02:53,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452768659] [2021-11-05 18:02:53,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:02:53,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:02:53,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:02:53,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:02:53,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:02:53,110 INFO L87 Difference]: Start difference. First operand 3672 states and 5036 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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 18:02:55,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:02:55,260 INFO L93 Difference]: Finished difference Result 10870 states and 14963 transitions. [2021-11-05 18:02:55,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:02:55,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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 40 [2021-11-05 18:02:55,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:02:55,284 INFO L225 Difference]: With dead ends: 10870 [2021-11-05 18:02:55,284 INFO L226 Difference]: Without dead ends: 7216 [2021-11-05 18:02:55,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.84ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:02:55,297 INFO L933 BasicCegarLoop]: 2470 mSDtfsCounter, 2378 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1884.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2378 SdHoareTripleChecker+Valid, 4815 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.52ms SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1998.31ms IncrementalHoareTripleChecker+Time [2021-11-05 18:02:55,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2378 Valid, 4815 Invalid, 365 Unknown, 0 Unchecked, 13.52ms Time], IncrementalHoareTripleChecker [52 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 1998.31ms Time] [2021-11-05 18:02:55,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7216 states. [2021-11-05 18:02:55,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7216 to 7060. [2021-11-05 18:02:55,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7060 states, 7007 states have (on average 1.3891822463251036) internal successors, (9734), 7059 states have internal predecessors, (9734), 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 18:02:55,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7060 states to 7060 states and 9734 transitions. [2021-11-05 18:02:55,423 INFO L78 Accepts]: Start accepts. Automaton has 7060 states and 9734 transitions. Word has length 40 [2021-11-05 18:02:55,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:02:55,424 INFO L470 AbstractCegarLoop]: Abstraction has 7060 states and 9734 transitions. [2021-11-05 18:02:55,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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 18:02:55,425 INFO L276 IsEmpty]: Start isEmpty. Operand 7060 states and 9734 transitions. [2021-11-05 18:02:55,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-05 18:02:55,427 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:02:55,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:02:55,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 18:02:55,428 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-05 18:02:55,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:02:55,429 INFO L85 PathProgramCache]: Analyzing trace with hash -518682485, now seen corresponding path program 1 times [2021-11-05 18:02:55,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:02:55,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546976822] [2021-11-05 18:02:55,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:02:55,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:02:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:02:55,758 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 18:02:55,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:02:55,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546976822] [2021-11-05 18:02:55,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546976822] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:02:55,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:02:55,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:02:55,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564459198] [2021-11-05 18:02:55,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:02:55,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:02:55,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:02:55,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:02:55,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:02:55,760 INFO L87 Difference]: Start difference. First operand 7060 states and 9734 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 18:02:56,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:02:56,150 INFO L93 Difference]: Finished difference Result 20449 states and 28105 transitions. [2021-11-05 18:02:56,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:02:56,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2021-11-05 18:02:56,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:02:56,208 INFO L225 Difference]: With dead ends: 20449 [2021-11-05 18:02:56,208 INFO L226 Difference]: Without dead ends: 13409 [2021-11-05 18:02:56,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.34ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:02:56,222 INFO L933 BasicCegarLoop]: 2577 mSDtfsCounter, 2295 mSDsluCounter, 2533 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 232.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2295 SdHoareTripleChecker+Valid, 5110 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.66ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 256.36ms IncrementalHoareTripleChecker+Time [2021-11-05 18:02:56,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2295 Valid, 5110 Invalid, 23 Unknown, 0 Unchecked, 4.66ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 256.36ms Time] [2021-11-05 18:02:56,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13409 states. [2021-11-05 18:02:56,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13409 to 13216. [2021-11-05 18:02:56,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13216 states, 13163 states have (on average 1.3860062295829219) internal successors, (18244), 13215 states have internal predecessors, (18244), 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 18:02:56,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13216 states to 13216 states and 18244 transitions. [2021-11-05 18:02:56,559 INFO L78 Accepts]: Start accepts. Automaton has 13216 states and 18244 transitions. Word has length 50 [2021-11-05 18:02:56,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:02:56,560 INFO L470 AbstractCegarLoop]: Abstraction has 13216 states and 18244 transitions. [2021-11-05 18:02:56,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 18:02:56,561 INFO L276 IsEmpty]: Start isEmpty. Operand 13216 states and 18244 transitions. [2021-11-05 18:02:56,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-05 18:02:56,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:02:56,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:02:56,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 18:02:56,564 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-05 18:02:56,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:02:56,565 INFO L85 PathProgramCache]: Analyzing trace with hash -320551080, now seen corresponding path program 1 times [2021-11-05 18:02:56,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:02:56,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078963188] [2021-11-05 18:02:56,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:02:56,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:02:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:02:56,893 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 18:02:56,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:02:56,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078963188] [2021-11-05 18:02:56,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078963188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:02:56,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:02:56,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:02:56,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051825254] [2021-11-05 18:02:56,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:02:56,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:02:56,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:02:56,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:02:56,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:02:56,895 INFO L87 Difference]: Start difference. First operand 13216 states and 18244 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 18:02:57,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:02:57,381 INFO L93 Difference]: Finished difference Result 38231 states and 52583 transitions. [2021-11-05 18:02:57,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:02:57,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2021-11-05 18:02:57,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:02:57,437 INFO L225 Difference]: With dead ends: 38231 [2021-11-05 18:02:57,438 INFO L226 Difference]: Without dead ends: 25035 [2021-11-05 18:02:57,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.48ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:02:57,462 INFO L933 BasicCegarLoop]: 2841 mSDtfsCounter, 2278 mSDsluCounter, 2533 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 240.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2278 SdHoareTripleChecker+Valid, 5374 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.84ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 261.54ms IncrementalHoareTripleChecker+Time [2021-11-05 18:02:57,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2278 Valid, 5374 Invalid, 23 Unknown, 0 Unchecked, 3.84ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 261.54ms Time] [2021-11-05 18:02:57,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25035 states. [2021-11-05 18:02:57,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25035 to 24852. [2021-11-05 18:02:57,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24852 states, 24799 states have (on average 1.37981370216541) internal successors, (34218), 24851 states have internal predecessors, (34218), 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 18:02:58,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24852 states to 24852 states and 34218 transitions. [2021-11-05 18:02:58,008 INFO L78 Accepts]: Start accepts. Automaton has 24852 states and 34218 transitions. Word has length 62 [2021-11-05 18:02:58,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:02:58,010 INFO L470 AbstractCegarLoop]: Abstraction has 24852 states and 34218 transitions. [2021-11-05 18:02:58,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 18:02:58,013 INFO L276 IsEmpty]: Start isEmpty. Operand 24852 states and 34218 transitions. [2021-11-05 18:02:58,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-05 18:02:58,015 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:02:58,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 18:02:58,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 18:02:58,016 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-05 18:02:58,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:02:58,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1126343220, now seen corresponding path program 1 times [2021-11-05 18:02:58,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:02:58,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876429241] [2021-11-05 18:02:58,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:02:58,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:02:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:02:58,356 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 18:02:58,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:02:58,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876429241] [2021-11-05 18:02:58,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876429241] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:02:58,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:02:58,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:02:58,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281305267] [2021-11-05 18:02:58,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:02:58,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:02:58,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:02:58,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:02:58,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:02:58,358 INFO L87 Difference]: Start difference. First operand 24852 states and 34218 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 18:02:58,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:02:58,855 INFO L93 Difference]: Finished difference Result 59410 states and 81429 transitions. [2021-11-05 18:02:58,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:02:58,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2021-11-05 18:02:58,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:02:58,925 INFO L225 Difference]: With dead ends: 59410 [2021-11-05 18:02:58,926 INFO L226 Difference]: Without dead ends: 34578 [2021-11-05 18:02:58,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.86ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:02:58,958 INFO L933 BasicCegarLoop]: 3108 mSDtfsCounter, 1105 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 145.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 5656 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.91ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 161.97ms IncrementalHoareTripleChecker+Time [2021-11-05 18:02:58,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1105 Valid, 5656 Invalid, 8 Unknown, 0 Unchecked, 2.91ms Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 161.97ms Time] [2021-11-05 18:02:58,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34578 states. [2021-11-05 18:02:59,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34578 to 34532. [2021-11-05 18:02:59,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34532 states, 34479 states have (on average 1.368079120624148) internal successors, (47170), 34531 states have internal predecessors, (47170), 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 18:02:59,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34532 states to 34532 states and 47170 transitions. [2021-11-05 18:02:59,694 INFO L78 Accepts]: Start accepts. Automaton has 34532 states and 47170 transitions. Word has length 70 [2021-11-05 18:02:59,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:02:59,696 INFO L470 AbstractCegarLoop]: Abstraction has 34532 states and 47170 transitions. [2021-11-05 18:02:59,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 18:02:59,696 INFO L276 IsEmpty]: Start isEmpty. Operand 34532 states and 47170 transitions. [2021-11-05 18:02:59,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-05 18:02:59,699 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:02:59,699 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 18:02:59,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 18:02:59,699 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-05 18:02:59,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:02:59,700 INFO L85 PathProgramCache]: Analyzing trace with hash 742851849, now seen corresponding path program 1 times [2021-11-05 18:02:59,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:02:59,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632604845] [2021-11-05 18:02:59,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:02:59,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:02:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:03:00,028 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:03:00,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:03:00,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632604845] [2021-11-05 18:03:00,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632604845] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:03:00,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:03:00,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:03:00,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822608469] [2021-11-05 18:03:00,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:03:00,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:03:00,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:03:00,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:03:00,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:03:00,030 INFO L87 Difference]: Start difference. First operand 34532 states and 47170 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 18:03:02,149 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:03:02,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:03:02,989 INFO L93 Difference]: Finished difference Result 85229 states and 116235 transitions. [2021-11-05 18:03:02,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:03:02,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 89 [2021-11-05 18:03:02,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:03:03,111 INFO L225 Difference]: With dead ends: 85229 [2021-11-05 18:03:03,111 INFO L226 Difference]: Without dead ends: 50717 [2021-11-05 18:03:03,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.28ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:03:03,162 INFO L933 BasicCegarLoop]: 3137 mSDtfsCounter, 2440 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2241.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 5530 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.69ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2373.80ms IncrementalHoareTripleChecker+Time [2021-11-05 18:03:03,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2440 Valid, 5530 Invalid, 35 Unknown, 0 Unchecked, 3.69ms Time], IncrementalHoareTripleChecker [12 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 2373.80ms Time] [2021-11-05 18:03:03,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50717 states. [2021-11-05 18:03:04,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50717 to 50524. [2021-11-05 18:03:04,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50524 states, 50471 states have (on average 1.3637534425709814) internal successors, (68830), 50523 states have internal predecessors, (68830), 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 18:03:04,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50524 states to 50524 states and 68830 transitions. [2021-11-05 18:03:04,191 INFO L78 Accepts]: Start accepts. Automaton has 50524 states and 68830 transitions. Word has length 89 [2021-11-05 18:03:04,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:03:04,191 INFO L470 AbstractCegarLoop]: Abstraction has 50524 states and 68830 transitions. [2021-11-05 18:03:04,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 18:03:04,192 INFO L276 IsEmpty]: Start isEmpty. Operand 50524 states and 68830 transitions. [2021-11-05 18:03:04,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-05 18:03:04,201 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:03:04,201 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 18:03:04,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 18:03:04,201 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-05 18:03:04,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:03:04,202 INFO L85 PathProgramCache]: Analyzing trace with hash -767985962, now seen corresponding path program 1 times [2021-11-05 18:03:04,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:03:04,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944830114] [2021-11-05 18:03:04,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:03:04,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:03:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:03:04,519 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:03:04,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:03:04,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944830114] [2021-11-05 18:03:04,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944830114] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:03:04,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:03:04,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:03:04,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021283729] [2021-11-05 18:03:04,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:03:04,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:03:04,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:03:04,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:03:04,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:03:04,521 INFO L87 Difference]: Start difference. First operand 50524 states and 68830 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:03:06,636 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:03:07,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:03:07,838 INFO L93 Difference]: Finished difference Result 124619 states and 169513 transitions. [2021-11-05 18:03:07,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:03:07,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-05 18:03:07,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:03:07,991 INFO L225 Difference]: With dead ends: 124619 [2021-11-05 18:03:07,992 INFO L226 Difference]: Without dead ends: 74115 [2021-11-05 18:03:08,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.15ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:03:08,040 INFO L933 BasicCegarLoop]: 3132 mSDtfsCounter, 2423 mSDsluCounter, 2388 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2255.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2423 SdHoareTripleChecker+Valid, 5520 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.31ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2347.16ms IncrementalHoareTripleChecker+Time [2021-11-05 18:03:08,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2423 Valid, 5520 Invalid, 35 Unknown, 0 Unchecked, 3.31ms Time], IncrementalHoareTripleChecker [12 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 2347.16ms Time] [2021-11-05 18:03:08,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74115 states. [2021-11-05 18:03:09,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74115 to 73932. [2021-11-05 18:03:09,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73932 states, 73879 states have (on average 1.3590059421486484) internal successors, (100402), 73931 states have internal predecessors, (100402), 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 18:03:09,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73932 states to 73932 states and 100402 transitions. [2021-11-05 18:03:09,245 INFO L78 Accepts]: Start accepts. Automaton has 73932 states and 100402 transitions. Word has length 101 [2021-11-05 18:03:09,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:03:09,246 INFO L470 AbstractCegarLoop]: Abstraction has 73932 states and 100402 transitions. [2021-11-05 18:03:09,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:03:09,246 INFO L276 IsEmpty]: Start isEmpty. Operand 73932 states and 100402 transitions. [2021-11-05 18:03:09,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-05 18:03:09,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:03:09,252 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2021-11-05 18:03:09,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 18:03:09,253 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-05 18:03:09,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:03:09,253 INFO L85 PathProgramCache]: Analyzing trace with hash -42916485, now seen corresponding path program 1 times [2021-11-05 18:03:09,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:03:09,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359906485] [2021-11-05 18:03:09,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:03:09,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:03:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:03:10,195 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-05 18:03:10,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:03:10,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359906485] [2021-11-05 18:03:10,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359906485] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:03:10,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:03:10,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 18:03:10,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442154124] [2021-11-05 18:03:10,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:03:10,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 18:03:10,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:03:10,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 18:03:10,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 18:03:10,196 INFO L87 Difference]: Start difference. First operand 73932 states and 100402 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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 18:03:12,311 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:03:15,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:03:15,367 INFO L93 Difference]: Finished difference Result 268198 states and 363534 transitions. [2021-11-05 18:03:15,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 18:03:15,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-11-05 18:03:15,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:03:15,815 INFO L225 Difference]: With dead ends: 268198 [2021-11-05 18:03:15,815 INFO L226 Difference]: Without dead ends: 194286 [2021-11-05 18:03:15,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 231.24ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 18:03:15,903 INFO L933 BasicCegarLoop]: 5110 mSDtfsCounter, 13859 mSDsluCounter, 14406 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2501.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13859 SdHoareTripleChecker+Valid, 19516 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.39ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2613.61ms IncrementalHoareTripleChecker+Time [2021-11-05 18:03:15,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13859 Valid, 19516 Invalid, 67 Unknown, 0 Unchecked, 25.39ms Time], IncrementalHoareTripleChecker [6 Valid, 60 Invalid, 1 Unknown, 0 Unchecked, 2613.61ms Time] [2021-11-05 18:03:16,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194286 states. [2021-11-05 18:03:17,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194286 to 74076. [2021-11-05 18:03:17,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74076 states, 74023 states have (on average 1.3586317766099725) internal successors, (100570), 74075 states have internal predecessors, (100570), 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 18:03:18,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74076 states to 74076 states and 100570 transitions. [2021-11-05 18:03:18,126 INFO L78 Accepts]: Start accepts. Automaton has 74076 states and 100570 transitions. Word has length 104 [2021-11-05 18:03:18,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:03:18,126 INFO L470 AbstractCegarLoop]: Abstraction has 74076 states and 100570 transitions. [2021-11-05 18:03:18,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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 18:03:18,127 INFO L276 IsEmpty]: Start isEmpty. Operand 74076 states and 100570 transitions. [2021-11-05 18:03:18,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-05 18:03:18,132 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:03:18,133 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 18:03:18,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 18:03:18,133 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-05 18:03:18,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:03:18,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1443296178, now seen corresponding path program 1 times [2021-11-05 18:03:18,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:03:18,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191327964] [2021-11-05 18:03:18,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:03:18,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:03:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:03:18,779 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-05 18:03:18,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:03:18,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191327964] [2021-11-05 18:03:18,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191327964] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:03:18,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:03:18,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 18:03:18,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459259395] [2021-11-05 18:03:18,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:03:18,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:03:18,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:03:18,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:03:18,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:03:18,781 INFO L87 Difference]: Start difference. First operand 74076 states and 100570 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 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 18:03:19,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:03:19,762 INFO L93 Difference]: Finished difference Result 116233 states and 156148 transitions. [2021-11-05 18:03:19,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:03:19,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 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 109 [2021-11-05 18:03:19,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:03:19,828 INFO L225 Difference]: With dead ends: 116233 [2021-11-05 18:03:19,829 INFO L226 Difference]: Without dead ends: 42177 [2021-11-05 18:03:19,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.94ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:03:19,888 INFO L933 BasicCegarLoop]: 1203 mSDtfsCounter, 1116 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.27ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.04ms IncrementalHoareTripleChecker+Time [2021-11-05 18:03:19,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1116 Valid, 1203 Invalid, 1 Unknown, 0 Unchecked, 1.27ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 5.04ms Time] [2021-11-05 18:03:19,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42177 states. [2021-11-05 18:03:20,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42177 to 42177. [2021-11-05 18:03:20,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42177 states, 42173 states have (on average 1.3174780072558272) internal successors, (55562), 42176 states have internal predecessors, (55562), 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 18:03:20,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42177 states to 42177 states and 55562 transitions. [2021-11-05 18:03:20,844 INFO L78 Accepts]: Start accepts. Automaton has 42177 states and 55562 transitions. Word has length 109 [2021-11-05 18:03:20,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:03:20,845 INFO L470 AbstractCegarLoop]: Abstraction has 42177 states and 55562 transitions. [2021-11-05 18:03:20,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 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 18:03:20,845 INFO L276 IsEmpty]: Start isEmpty. Operand 42177 states and 55562 transitions. [2021-11-05 18:03:20,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-05 18:03:20,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:03:20,852 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1] [2021-11-05 18:03:20,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 18:03:20,852 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-05 18:03:20,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:03:20,852 INFO L85 PathProgramCache]: Analyzing trace with hash -2039274847, now seen corresponding path program 1 times [2021-11-05 18:03:20,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:03:20,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615148641] [2021-11-05 18:03:20,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:03:20,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:03:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:03:21,150 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-05 18:03:21,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:03:21,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615148641] [2021-11-05 18:03:21,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615148641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:03:21,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:03:21,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:03:21,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212545856] [2021-11-05 18:03:21,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:03:21,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:03:21,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:03:21,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:03:21,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:03:21,152 INFO L87 Difference]: Start difference. First operand 42177 states and 55562 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 18:03:22,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:03:22,001 INFO L93 Difference]: Finished difference Result 84370 states and 111176 transitions. [2021-11-05 18:03:22,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:03:22,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 115 [2021-11-05 18:03:22,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:03:22,064 INFO L225 Difference]: With dead ends: 84370 [2021-11-05 18:03:22,065 INFO L226 Difference]: Without dead ends: 42213 [2021-11-05 18:03:22,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.09ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:03:22,098 INFO L933 BasicCegarLoop]: 1203 mSDtfsCounter, 0 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.07ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.47ms IncrementalHoareTripleChecker+Time [2021-11-05 18:03:22,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2401 Invalid, 6 Unknown, 0 Unchecked, 1.07ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 37.47ms Time] [2021-11-05 18:03:22,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42213 states. [2021-11-05 18:03:22,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42213 to 42213. [2021-11-05 18:03:22,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42213 states, 42209 states have (on average 1.3172072306853988) internal successors, (55598), 42212 states have internal predecessors, (55598), 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 18:03:23,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42213 states to 42213 states and 55598 transitions. [2021-11-05 18:03:23,020 INFO L78 Accepts]: Start accepts. Automaton has 42213 states and 55598 transitions. Word has length 115 [2021-11-05 18:03:23,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:03:23,021 INFO L470 AbstractCegarLoop]: Abstraction has 42213 states and 55598 transitions. [2021-11-05 18:03:23,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 18:03:23,021 INFO L276 IsEmpty]: Start isEmpty. Operand 42213 states and 55598 transitions. [2021-11-05 18:03:23,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-05 18:03:23,027 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:03:23,027 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1] [2021-11-05 18:03:23,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 18:03:23,028 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-05 18:03:23,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:03:23,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1438043999, now seen corresponding path program 1 times [2021-11-05 18:03:23,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:03:23,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180741650] [2021-11-05 18:03:23,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:03:23,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:03:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:03:23,820 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-05 18:03:23,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:03:23,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180741650] [2021-11-05 18:03:23,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180741650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:03:23,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:03:23,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:03:23,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225406425] [2021-11-05 18:03:23,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:03:23,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:03:23,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:03:23,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:03:23,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:03:23,822 INFO L87 Difference]: Start difference. First operand 42213 states and 55598 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 18:03:24,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:03:24,826 INFO L93 Difference]: Finished difference Result 84730 states and 111824 transitions. [2021-11-05 18:03:24,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:03:24,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 115 [2021-11-05 18:03:24,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:03:24,895 INFO L225 Difference]: With dead ends: 84730 [2021-11-05 18:03:24,896 INFO L226 Difference]: Without dead ends: 42537 [2021-11-05 18:03:24,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:03:24,927 INFO L933 BasicCegarLoop]: 1199 mSDtfsCounter, 0 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2388 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.43ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105.83ms IncrementalHoareTripleChecker+Time [2021-11-05 18:03:24,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2388 Invalid, 23 Unknown, 0 Unchecked, 1.43ms Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 105.83ms Time] [2021-11-05 18:03:24,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42537 states. [2021-11-05 18:03:25,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42537 to 42537. [2021-11-05 18:03:25,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42537 states, 42533 states have (on average 1.3147908682669927) internal successors, (55922), 42536 states have internal predecessors, (55922), 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 18:03:25,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42537 states to 42537 states and 55922 transitions. [2021-11-05 18:03:25,849 INFO L78 Accepts]: Start accepts. Automaton has 42537 states and 55922 transitions. Word has length 115 [2021-11-05 18:03:25,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:03:25,850 INFO L470 AbstractCegarLoop]: Abstraction has 42537 states and 55922 transitions. [2021-11-05 18:03:25,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 18:03:25,850 INFO L276 IsEmpty]: Start isEmpty. Operand 42537 states and 55922 transitions. [2021-11-05 18:03:25,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-05 18:03:25,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:03:25,856 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2021-11-05 18:03:25,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 18:03:25,856 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-05 18:03:25,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:03:25,856 INFO L85 PathProgramCache]: Analyzing trace with hash -622424135, now seen corresponding path program 1 times [2021-11-05 18:03:25,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:03:25,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832713609] [2021-11-05 18:03:25,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:03:25,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:03:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:03:27,614 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-05 18:03:27,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:03:27,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832713609] [2021-11-05 18:03:27,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832713609] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 18:03:27,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86475477] [2021-11-05 18:03:27,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:03:27,615 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 18:03:27,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 18:03:27,617 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 18:03:27,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 18:03:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:03:29,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 6880 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-05 18:03:29,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 18:03:30,029 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-05 18:03:30,029 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 18:03:30,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86475477] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:03:30,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-05 18:03:30,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-05 18:03:30,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581922727] [2021-11-05 18:03:30,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:03:30,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 18:03:30,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:03:30,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 18:03:30,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-05 18:03:30,030 INFO L87 Difference]: Start difference. First operand 42537 states and 55922 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:03:32,141 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:03:32,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:03:32,992 INFO L93 Difference]: Finished difference Result 64556 states and 84902 transitions. [2021-11-05 18:03:32,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 18:03:32,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-05 18:03:32,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:03:33,025 INFO L225 Difference]: With dead ends: 64556 [2021-11-05 18:03:33,025 INFO L226 Difference]: Without dead ends: 21949 [2021-11-05 18:03:33,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 350.75ms TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-05 18:03:33,053 INFO L933 BasicCegarLoop]: 1202 mSDtfsCounter, 18 mSDsluCounter, 3596 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2203.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4798 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.36ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2304.69ms IncrementalHoareTripleChecker+Time [2021-11-05 18:03:33,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 4798 Invalid, 25 Unknown, 0 Unchecked, 2.36ms Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 2304.69ms Time] [2021-11-05 18:03:33,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21949 states. [2021-11-05 18:03:33,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21949 to 21619. [2021-11-05 18:03:33,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21619 states, 21615 states have (on average 1.3141337034466805) internal successors, (28405), 21618 states have internal predecessors, (28405), 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 18:03:33,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21619 states to 21619 states and 28405 transitions. [2021-11-05 18:03:33,489 INFO L78 Accepts]: Start accepts. Automaton has 21619 states and 28405 transitions. Word has length 116 [2021-11-05 18:03:33,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:03:33,489 INFO L470 AbstractCegarLoop]: Abstraction has 21619 states and 28405 transitions. [2021-11-05 18:03:33,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 18:03:33,489 INFO L276 IsEmpty]: Start isEmpty. Operand 21619 states and 28405 transitions. [2021-11-05 18:03:33,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-05 18:03:33,493 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:03:33,494 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2021-11-05 18:03:33,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-05 18:03:33,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-05 18:03:33,708 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2021-11-05 18:03:33,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:03:33,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1285660820, now seen corresponding path program 1 times [2021-11-05 18:03:33,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:03:33,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99098677] [2021-11-05 18:03:33,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:03:33,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:03:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:03:35,137 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-05 18:03:35,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:03:35,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99098677] [2021-11-05 18:03:35,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99098677] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 18:03:35,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47654241] [2021-11-05 18:03:35,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:03:35,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 18:03:35,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 18:03:35,139 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 18:03:35,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process