./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-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU --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 d256a8b259faad28b260c065eb5db63197c2a9358a88ea40fe4f65cbd4165ef2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:08:27,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:08:27,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:08:27,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:08:27,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:08:27,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:08:27,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:08:27,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:08:27,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:08:27,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:08:27,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:08:27,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:08:27,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:08:27,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:08:27,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:08:27,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:08:27,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:08:27,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:08:27,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:08:27,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:08:27,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:08:27,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:08:27,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:08:27,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:08:27,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:08:27,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:08:27,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:08:27,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:08:27,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:08:27,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:08:27,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:08:27,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:08:27,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:08:27,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:08:27,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:08:27,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:08:27,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:08:27,770 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:08:27,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:08:27,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:08:27,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:08:27,773 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 22:08:27,815 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:08:27,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:08:27,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:08:27,816 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:08:27,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:08:27,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:08:27,818 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:08:27,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:08:27,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:08:27,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:08:27,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:08:27,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:08:27,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:08:27,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:08:27,821 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:08:27,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:08:27,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:08:27,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:08:27,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:08:27,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:08:27,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:08:27,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:08:27,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:08:27,823 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:08:27,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:08:27,823 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 22:08:27,823 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 22:08:27,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:08:27,824 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:08:27,825 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d256a8b259faad28b260c065eb5db63197c2a9358a88ea40fe4f65cbd4165ef2 [2021-11-02 22:08:28,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:08:28,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:08:28,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:08:28,138 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:08:28,139 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:08:28,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2021-11-02 22:08:28,210 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/data/1efd92b81/7426c05a359344958d85d03edf880edf/FLAG8de15389e [2021-11-02 22:08:29,009 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:08:29,011 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2021-11-02 22:08:29,058 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/data/1efd92b81/7426c05a359344958d85d03edf880edf/FLAG8de15389e [2021-11-02 22:08:29,572 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/data/1efd92b81/7426c05a359344958d85d03edf880edf [2021-11-02 22:08:29,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:08:29,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:08:29,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:08:29,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:08:29,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:08:29,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:08:29" (1/1) ... [2021-11-02 22:08:29,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ebc5e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:08:29, skipping insertion in model container [2021-11-02 22:08:29,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:08:29" (1/1) ... [2021-11-02 22:08:29,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:08:29,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:08:31,057 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i[159905,159918] [2021-11-02 22:08:31,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:08:31,248 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:08:31,588 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i[159905,159918] [2021-11-02 22:08:31,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:08:31,859 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:08:31,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:08:31 WrapperNode [2021-11-02 22:08:31,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:08:31,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:08:31,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:08:31,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:08:31,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:08:31" (1/1) ... [2021-11-02 22:08:31,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:08:31" (1/1) ... [2021-11-02 22:08:32,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:08:32,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:08:32,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:08:32,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:08:32,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:08:31" (1/1) ... [2021-11-02 22:08:32,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:08:31" (1/1) ... [2021-11-02 22:08:32,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:08:31" (1/1) ... [2021-11-02 22:08:32,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:08:31" (1/1) ... [2021-11-02 22:08:32,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:08:31" (1/1) ... [2021-11-02 22:08:32,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:08:31" (1/1) ... [2021-11-02 22:08:32,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:08:31" (1/1) ... [2021-11-02 22:08:32,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:08:32,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:08:32,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:08:32,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:08:32,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:08:31" (1/1) ... [2021-11-02 22:08:32,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:08:32,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:08:33,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 22:08:33,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 22:08:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 22:08:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 22:08:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:08:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 22:08:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 22:08:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 22:08:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 22:08:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 22:08:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 22:08:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 22:08:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 22:08:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 22:08:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-02 22:08:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:08:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:08:33,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:08:47,417 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:08:47,417 INFO L299 CfgBuilder]: Removed 2088 assume(true) statements. [2021-11-02 22:08:47,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:08:47 BoogieIcfgContainer [2021-11-02 22:08:47,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:08:47,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:08:47,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:08:47,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:08:47,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:08:29" (1/3) ... [2021-11-02 22:08:47,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b706957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:08:47, skipping insertion in model container [2021-11-02 22:08:47,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:08:31" (2/3) ... [2021-11-02 22:08:47,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b706957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:08:47, skipping insertion in model container [2021-11-02 22:08:47,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:08:47" (3/3) ... [2021-11-02 22:08:47,432 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2021-11-02 22:08:47,437 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:08:47,437 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2021-11-02 22:08:47,498 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:08:47,504 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 [2021-11-02 22:08:47,504 INFO L340 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2021-11-02 22:08:47,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 2619 states, 2576 states have (on average 1.529503105590062) internal successors, (3940), 2618 states have internal predecessors, (3940), 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) [2021-11-02 22:08:47,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-02 22:08:47,597 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:08:47,597 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:08:47,598 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:08:47,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:08:47,604 INFO L85 PathProgramCache]: Analyzing trace with hash -571058910, now seen corresponding path program 1 times [2021-11-02 22:08:47,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:08:47,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295484796] [2021-11-02 22:08:47,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:08:47,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:08:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:08:48,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:08:48,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:08:48,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295484796] [2021-11-02 22:08:48,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295484796] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:08:48,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:08:48,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:08:48,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572956355] [2021-11-02 22:08:48,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 22:08:48,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:08:48,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 22:08:48,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:08:48,286 INFO L87 Difference]: Start difference. First operand has 2619 states, 2576 states have (on average 1.529503105590062) internal successors, (3940), 2618 states have internal predecessors, (3940), 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 35.5) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:08:48,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:08:48,441 INFO L93 Difference]: Finished difference Result 5234 states and 7875 transitions. [2021-11-02 22:08:48,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:08:48,443 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-02 22:08:48,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:08:48,472 INFO L225 Difference]: With dead ends: 5234 [2021-11-02 22:08:48,472 INFO L226 Difference]: Without dead ends: 2611 [2021-11-02 22:08:48,481 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:08:48,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2021-11-02 22:08:48,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2611. [2021-11-02 22:08:48,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2569 states have (on average 1.5021409108602568) internal successors, (3859), 2610 states have internal predecessors, (3859), 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) [2021-11-02 22:08:48,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3859 transitions. [2021-11-02 22:08:48,755 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3859 transitions. Word has length 71 [2021-11-02 22:08:48,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:08:48,756 INFO L470 AbstractCegarLoop]: Abstraction has 2611 states and 3859 transitions. [2021-11-02 22:08:48,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:08:48,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3859 transitions. [2021-11-02 22:08:48,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-02 22:08:48,767 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:08:48,768 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:08:48,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 22:08:48,769 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:08:48,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:08:48,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1311868076, now seen corresponding path program 1 times [2021-11-02 22:08:48,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:08:48,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390359411] [2021-11-02 22:08:48,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:08:48,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:08:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:08:49,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:08:49,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:08:49,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390359411] [2021-11-02 22:08:49,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390359411] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:08:49,103 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:08:49,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:08:49,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604064095] [2021-11-02 22:08:49,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:08:49,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:08:49,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:08:49,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:08:49,107 INFO L87 Difference]: Start difference. First operand 2611 states and 3859 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:08:49,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:08:49,370 INFO L93 Difference]: Finished difference Result 5192 states and 7693 transitions. [2021-11-02 22:08:49,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:08:49,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-02 22:08:49,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:08:49,393 INFO L225 Difference]: With dead ends: 5192 [2021-11-02 22:08:49,393 INFO L226 Difference]: Without dead ends: 2617 [2021-11-02 22:08:49,398 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:08:49,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2021-11-02 22:08:49,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 2617. [2021-11-02 22:08:49,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2617 states, 2575 states have (on average 1.5009708737864078) internal successors, (3865), 2616 states have internal predecessors, (3865), 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) [2021-11-02 22:08:49,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 3865 transitions. [2021-11-02 22:08:49,478 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 3865 transitions. Word has length 71 [2021-11-02 22:08:49,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:08:49,480 INFO L470 AbstractCegarLoop]: Abstraction has 2617 states and 3865 transitions. [2021-11-02 22:08:49,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:08:49,481 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 3865 transitions. [2021-11-02 22:08:49,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-02 22:08:49,484 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:08:49,484 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:08:49,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 22:08:49,485 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:08:49,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:08:49,488 INFO L85 PathProgramCache]: Analyzing trace with hash -2009601516, now seen corresponding path program 1 times [2021-11-02 22:08:49,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:08:49,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515698124] [2021-11-02 22:08:49,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:08:49,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:08:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:08:49,731 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-02 22:08:49,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:08:49,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515698124] [2021-11-02 22:08:49,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515698124] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:08:49,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:08:49,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:08:49,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600651629] [2021-11-02 22:08:49,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:08:49,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:08:49,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:08:49,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:08:49,741 INFO L87 Difference]: Start difference. First operand 2617 states and 3865 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2021-11-02 22:08:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:08:49,965 INFO L93 Difference]: Finished difference Result 5189 states and 7684 transitions. [2021-11-02 22:08:49,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:08:49,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2021-11-02 22:08:49,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:08:49,981 INFO L225 Difference]: With dead ends: 5189 [2021-11-02 22:08:49,981 INFO L226 Difference]: Without dead ends: 2620 [2021-11-02 22:08:49,988 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:08:49,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2620 states. [2021-11-02 22:08:50,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2620 to 2620. [2021-11-02 22:08:50,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2620 states, 2578 states have (on average 1.5003878975950349) internal successors, (3868), 2619 states have internal predecessors, (3868), 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) [2021-11-02 22:08:50,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2620 states to 2620 states and 3868 transitions. [2021-11-02 22:08:50,062 INFO L78 Accepts]: Start accepts. Automaton has 2620 states and 3868 transitions. Word has length 77 [2021-11-02 22:08:50,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:08:50,066 INFO L470 AbstractCegarLoop]: Abstraction has 2620 states and 3868 transitions. [2021-11-02 22:08:50,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2021-11-02 22:08:50,073 INFO L276 IsEmpty]: Start isEmpty. Operand 2620 states and 3868 transitions. [2021-11-02 22:08:50,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-02 22:08:50,076 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:08:50,077 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:08:50,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 22:08:50,077 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:08:50,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:08:50,078 INFO L85 PathProgramCache]: Analyzing trace with hash -535021734, now seen corresponding path program 1 times [2021-11-02 22:08:50,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:08:50,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912556936] [2021-11-02 22:08:50,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:08:50,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:08:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:08:50,303 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-02 22:08:50,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:08:50,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912556936] [2021-11-02 22:08:50,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912556936] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:08:50,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:08:50,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:08:50,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330492101] [2021-11-02 22:08:50,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:08:50,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:08:50,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:08:50,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:08:50,306 INFO L87 Difference]: Start difference. First operand 2620 states and 3868 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:08:50,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:08:50,481 INFO L93 Difference]: Finished difference Result 5841 states and 8536 transitions. [2021-11-02 22:08:50,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:08:50,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-02 22:08:50,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:08:50,500 INFO L225 Difference]: With dead ends: 5841 [2021-11-02 22:08:50,500 INFO L226 Difference]: Without dead ends: 3292 [2021-11-02 22:08:50,505 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:08:50,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3292 states. [2021-11-02 22:08:50,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3292 to 3204. [2021-11-02 22:08:50,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3204 states, 3162 states have (on average 1.4794433902593296) internal successors, (4678), 3203 states have internal predecessors, (4678), 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) [2021-11-02 22:08:50,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3204 states to 3204 states and 4678 transitions. [2021-11-02 22:08:50,600 INFO L78 Accepts]: Start accepts. Automaton has 3204 states and 4678 transitions. Word has length 80 [2021-11-02 22:08:50,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:08:50,600 INFO L470 AbstractCegarLoop]: Abstraction has 3204 states and 4678 transitions. [2021-11-02 22:08:50,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:08:50,601 INFO L276 IsEmpty]: Start isEmpty. Operand 3204 states and 4678 transitions. [2021-11-02 22:08:50,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-02 22:08:50,602 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:08:50,602 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:08:50,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 22:08:50,602 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:08:50,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:08:50,603 INFO L85 PathProgramCache]: Analyzing trace with hash -373973430, now seen corresponding path program 1 times [2021-11-02 22:08:50,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:08:50,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602101396] [2021-11-02 22:08:50,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:08:50,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:08:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:08:50,824 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-02 22:08:50,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:08:50,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602101396] [2021-11-02 22:08:50,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602101396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:08:50,825 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:08:50,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:08:50,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471364735] [2021-11-02 22:08:50,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:08:50,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:08:50,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:08:50,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:08:50,827 INFO L87 Difference]: Start difference. First operand 3204 states and 4678 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2021-11-02 22:08:53,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:08:53,087 INFO L93 Difference]: Finished difference Result 9143 states and 13487 transitions. [2021-11-02 22:08:53,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:08:53,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 83 [2021-11-02 22:08:53,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:08:53,120 INFO L225 Difference]: With dead ends: 9143 [2021-11-02 22:08:53,120 INFO L226 Difference]: Without dead ends: 6010 [2021-11-02 22:08:53,126 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:08:53,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6010 states. [2021-11-02 22:08:53,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6010 to 5946. [2021-11-02 22:08:53,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5946 states, 5904 states have (on average 1.4991531165311653) internal successors, (8851), 5945 states have internal predecessors, (8851), 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) [2021-11-02 22:08:53,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5946 states to 5946 states and 8851 transitions. [2021-11-02 22:08:53,304 INFO L78 Accepts]: Start accepts. Automaton has 5946 states and 8851 transitions. Word has length 83 [2021-11-02 22:08:53,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:08:53,305 INFO L470 AbstractCegarLoop]: Abstraction has 5946 states and 8851 transitions. [2021-11-02 22:08:53,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2021-11-02 22:08:53,305 INFO L276 IsEmpty]: Start isEmpty. Operand 5946 states and 8851 transitions. [2021-11-02 22:08:53,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-02 22:08:53,306 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:08:53,307 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:08:53,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 22:08:53,307 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:08:53,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:08:53,308 INFO L85 PathProgramCache]: Analyzing trace with hash 2037562997, now seen corresponding path program 1 times [2021-11-02 22:08:53,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:08:53,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126575870] [2021-11-02 22:08:53,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:08:53,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:08:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:08:53,462 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-02 22:08:53,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:08:53,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126575870] [2021-11-02 22:08:53,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126575870] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:08:53,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:08:53,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:08:53,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583646415] [2021-11-02 22:08:53,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:08:53,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:08:53,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:08:53,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:08:53,466 INFO L87 Difference]: Start difference. First operand 5946 states and 8851 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2021-11-02 22:08:53,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:08:53,814 INFO L93 Difference]: Finished difference Result 15730 states and 23665 transitions. [2021-11-02 22:08:53,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:08:53,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 87 [2021-11-02 22:08:53,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:08:53,870 INFO L225 Difference]: With dead ends: 15730 [2021-11-02 22:08:53,871 INFO L226 Difference]: Without dead ends: 9855 [2021-11-02 22:08:53,881 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:08:53,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9855 states. [2021-11-02 22:08:54,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9855 to 9627. [2021-11-02 22:08:54,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9627 states, 9585 states have (on average 1.527490871152843) internal successors, (14641), 9626 states have internal predecessors, (14641), 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) [2021-11-02 22:08:54,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9627 states to 9627 states and 14641 transitions. [2021-11-02 22:08:54,231 INFO L78 Accepts]: Start accepts. Automaton has 9627 states and 14641 transitions. Word has length 87 [2021-11-02 22:08:54,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:08:54,232 INFO L470 AbstractCegarLoop]: Abstraction has 9627 states and 14641 transitions. [2021-11-02 22:08:54,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2021-11-02 22:08:54,232 INFO L276 IsEmpty]: Start isEmpty. Operand 9627 states and 14641 transitions. [2021-11-02 22:08:54,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-02 22:08:54,233 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:08:54,234 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:08:54,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 22:08:54,234 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:08:54,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:08:54,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1880037815, now seen corresponding path program 1 times [2021-11-02 22:08:54,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:08:54,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719092309] [2021-11-02 22:08:54,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:08:54,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:08:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:08:54,536 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-02 22:08:54,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:08:54,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719092309] [2021-11-02 22:08:54,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719092309] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:08:54,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:08:54,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:08:54,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521596623] [2021-11-02 22:08:54,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:08:54,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:08:54,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:08:54,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:08:54,539 INFO L87 Difference]: Start difference. First operand 9627 states and 14641 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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) [2021-11-02 22:08:55,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:08:55,129 INFO L93 Difference]: Finished difference Result 28042 states and 42955 transitions. [2021-11-02 22:08:55,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:08:55,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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 96 [2021-11-02 22:08:55,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:08:55,188 INFO L225 Difference]: With dead ends: 28042 [2021-11-02 22:08:55,188 INFO L226 Difference]: Without dead ends: 18485 [2021-11-02 22:08:55,225 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:08:55,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18485 states. [2021-11-02 22:08:55,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18485 to 18215. [2021-11-02 22:08:56,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18215 states, 18175 states have (on average 1.5388170563961485) internal successors, (27968), 18214 states have internal predecessors, (27968), 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) [2021-11-02 22:08:56,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18215 states to 18215 states and 27968 transitions. [2021-11-02 22:08:56,143 INFO L78 Accepts]: Start accepts. Automaton has 18215 states and 27968 transitions. Word has length 96 [2021-11-02 22:08:56,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:08:56,144 INFO L470 AbstractCegarLoop]: Abstraction has 18215 states and 27968 transitions. [2021-11-02 22:08:56,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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) [2021-11-02 22:08:56,145 INFO L276 IsEmpty]: Start isEmpty. Operand 18215 states and 27968 transitions. [2021-11-02 22:08:56,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-02 22:08:56,146 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:08:56,147 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:08:56,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 22:08:56,147 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:08:56,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:08:56,148 INFO L85 PathProgramCache]: Analyzing trace with hash -153956232, now seen corresponding path program 1 times [2021-11-02 22:08:56,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:08:56,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617612750] [2021-11-02 22:08:56,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:08:56,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:08:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:08:56,452 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-02 22:08:56,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:08:56,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617612750] [2021-11-02 22:08:56,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617612750] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:08:56,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:08:56,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:08:56,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992092104] [2021-11-02 22:08:56,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:08:56,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:08:56,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:08:56,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:08:56,457 INFO L87 Difference]: Start difference. First operand 18215 states and 27968 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 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) [2021-11-02 22:08:56,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:08:56,821 INFO L93 Difference]: Finished difference Result 18215 states and 27968 transitions. [2021-11-02 22:08:56,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:08:56,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 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 98 [2021-11-02 22:08:56,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:08:56,866 INFO L225 Difference]: With dead ends: 18215 [2021-11-02 22:08:56,867 INFO L226 Difference]: Without dead ends: 18213 [2021-11-02 22:08:56,872 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:08:56,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18213 states. [2021-11-02 22:08:57,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18213 to 18213. [2021-11-02 22:08:57,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18213 states, 18174 states have (on average 1.538736656762408) internal successors, (27965), 18212 states have internal predecessors, (27965), 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) [2021-11-02 22:08:57,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18213 states to 18213 states and 27965 transitions. [2021-11-02 22:08:57,622 INFO L78 Accepts]: Start accepts. Automaton has 18213 states and 27965 transitions. Word has length 98 [2021-11-02 22:08:57,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:08:57,622 INFO L470 AbstractCegarLoop]: Abstraction has 18213 states and 27965 transitions. [2021-11-02 22:08:57,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 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) [2021-11-02 22:08:57,623 INFO L276 IsEmpty]: Start isEmpty. Operand 18213 states and 27965 transitions. [2021-11-02 22:08:57,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-02 22:08:57,624 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:08:57,624 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:08:57,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-02 22:08:57,624 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:08:57,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:08:57,625 INFO L85 PathProgramCache]: Analyzing trace with hash -477659949, now seen corresponding path program 1 times [2021-11-02 22:08:57,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:08:57,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702991182] [2021-11-02 22:08:57,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:08:57,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:08:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:08:57,867 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-02 22:08:57,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:08:57,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702991182] [2021-11-02 22:08:57,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702991182] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:08:57,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:08:57,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:08:57,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604580405] [2021-11-02 22:08:57,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:08:57,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:08:57,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:08:57,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:08:57,870 INFO L87 Difference]: Start difference. First operand 18213 states and 27965 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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) [2021-11-02 22:08:58,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:08:58,282 INFO L93 Difference]: Finished difference Result 18213 states and 27965 transitions. [2021-11-02 22:08:58,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:08:58,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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 99 [2021-11-02 22:08:58,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:08:58,327 INFO L225 Difference]: With dead ends: 18213 [2021-11-02 22:08:58,327 INFO L226 Difference]: Without dead ends: 18211 [2021-11-02 22:08:58,334 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:08:58,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18211 states. [2021-11-02 22:08:58,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18211 to 18211. [2021-11-02 22:08:58,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18211 states, 18173 states have (on average 1.538656248280416) internal successors, (27962), 18210 states have internal predecessors, (27962), 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) [2021-11-02 22:08:58,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18211 states to 18211 states and 27962 transitions. [2021-11-02 22:08:58,910 INFO L78 Accepts]: Start accepts. Automaton has 18211 states and 27962 transitions. Word has length 99 [2021-11-02 22:08:58,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:08:58,910 INFO L470 AbstractCegarLoop]: Abstraction has 18211 states and 27962 transitions. [2021-11-02 22:08:58,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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) [2021-11-02 22:08:58,911 INFO L276 IsEmpty]: Start isEmpty. Operand 18211 states and 27962 transitions. [2021-11-02 22:08:58,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-02 22:08:58,912 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:08:58,912 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:08:58,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-02 22:08:58,913 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:08:58,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:08:58,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1416322108, now seen corresponding path program 1 times [2021-11-02 22:08:58,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:08:58,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209840761] [2021-11-02 22:08:58,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:08:58,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:08:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:08:59,202 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-02 22:08:59,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:08:59,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209840761] [2021-11-02 22:08:59,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209840761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:08:59,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:08:59,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:08:59,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969162603] [2021-11-02 22:08:59,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:08:59,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:08:59,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:08:59,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:08:59,206 INFO L87 Difference]: Start difference. First operand 18211 states and 27962 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:02,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:09:02,040 INFO L93 Difference]: Finished difference Result 36283 states and 55778 transitions. [2021-11-02 22:09:02,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:09:02,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-11-02 22:09:02,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:09:02,086 INFO L225 Difference]: With dead ends: 36283 [2021-11-02 22:09:02,087 INFO L226 Difference]: Without dead ends: 18143 [2021-11-02 22:09:02,112 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:09:02,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18143 states. [2021-11-02 22:09:02,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18143 to 18069. [2021-11-02 22:09:02,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18069 states, 18045 states have (on average 1.5364366860626213) internal successors, (27725), 18068 states have internal predecessors, (27725), 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) [2021-11-02 22:09:02,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18069 states to 18069 states and 27725 transitions. [2021-11-02 22:09:02,674 INFO L78 Accepts]: Start accepts. Automaton has 18069 states and 27725 transitions. Word has length 100 [2021-11-02 22:09:02,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:09:02,675 INFO L470 AbstractCegarLoop]: Abstraction has 18069 states and 27725 transitions. [2021-11-02 22:09:02,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 18069 states and 27725 transitions. [2021-11-02 22:09:02,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-02 22:09:02,676 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:09:02,677 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:09:02,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-02 22:09:02,678 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:09:02,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:02,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1922540574, now seen corresponding path program 1 times [2021-11-02 22:09:02,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:02,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172586712] [2021-11-02 22:09:02,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:02,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:02,909 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-02 22:09:02,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:09:02,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172586712] [2021-11-02 22:09:02,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172586712] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:09:02,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:09:02,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:09:02,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789479398] [2021-11-02 22:09:02,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:09:02,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:09:02,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:09:02,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:09:02,915 INFO L87 Difference]: Start difference. First operand 18069 states and 27725 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:03,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:09:03,328 INFO L93 Difference]: Finished difference Result 18069 states and 27725 transitions. [2021-11-02 22:09:03,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:09:03,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-11-02 22:09:03,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:09:03,376 INFO L225 Difference]: With dead ends: 18069 [2021-11-02 22:09:03,377 INFO L226 Difference]: Without dead ends: 18036 [2021-11-02 22:09:03,383 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:09:03,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18036 states. [2021-11-02 22:09:03,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18036 to 18036. [2021-11-02 22:09:04,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18036 states, 18013 states have (on average 1.5365569311053129) internal successors, (27678), 18035 states have internal predecessors, (27678), 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) [2021-11-02 22:09:04,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18036 states to 18036 states and 27678 transitions. [2021-11-02 22:09:04,057 INFO L78 Accepts]: Start accepts. Automaton has 18036 states and 27678 transitions. Word has length 100 [2021-11-02 22:09:04,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:09:04,058 INFO L470 AbstractCegarLoop]: Abstraction has 18036 states and 27678 transitions. [2021-11-02 22:09:04,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:04,058 INFO L276 IsEmpty]: Start isEmpty. Operand 18036 states and 27678 transitions. [2021-11-02 22:09:04,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 22:09:04,060 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:09:04,061 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:09:04,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-02 22:09:04,061 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:09:04,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:04,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1630109415, now seen corresponding path program 1 times [2021-11-02 22:09:04,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:04,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240747233] [2021-11-02 22:09:04,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:04,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:04,255 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-02 22:09:04,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:09:04,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240747233] [2021-11-02 22:09:04,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240747233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:09:04,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:09:04,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:09:04,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707043772] [2021-11-02 22:09:04,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:09:04,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:09:04,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:09:04,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:09:04,261 INFO L87 Difference]: Start difference. First operand 18036 states and 27678 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2021-11-02 22:09:07,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:09:07,048 INFO L93 Difference]: Finished difference Result 38115 states and 58240 transitions. [2021-11-02 22:09:07,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:09:07,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 114 [2021-11-02 22:09:07,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:09:07,104 INFO L225 Difference]: With dead ends: 38115 [2021-11-02 22:09:07,104 INFO L226 Difference]: Without dead ends: 20150 [2021-11-02 22:09:07,132 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:09:07,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20150 states. [2021-11-02 22:09:07,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20150 to 20072. [2021-11-02 22:09:07,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20072 states, 20049 states have (on average 1.5215721482368199) internal successors, (30506), 20071 states have internal predecessors, (30506), 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) [2021-11-02 22:09:07,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20072 states to 20072 states and 30506 transitions. [2021-11-02 22:09:07,813 INFO L78 Accepts]: Start accepts. Automaton has 20072 states and 30506 transitions. Word has length 114 [2021-11-02 22:09:07,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:09:07,814 INFO L470 AbstractCegarLoop]: Abstraction has 20072 states and 30506 transitions. [2021-11-02 22:09:07,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2021-11-02 22:09:07,814 INFO L276 IsEmpty]: Start isEmpty. Operand 20072 states and 30506 transitions. [2021-11-02 22:09:07,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-02 22:09:07,817 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:09:07,818 INFO L513 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:09:07,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-02 22:09:07,819 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:09:07,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:07,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1509890746, now seen corresponding path program 1 times [2021-11-02 22:09:07,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:07,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051777623] [2021-11-02 22:09:07,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:07,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:08,091 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-02 22:09:08,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:09:08,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051777623] [2021-11-02 22:09:08,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051777623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:09:08,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:09:08,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:09:08,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665286135] [2021-11-02 22:09:08,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:09:08,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:09:08,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:09:08,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:09:08,094 INFO L87 Difference]: Start difference. First operand 20072 states and 30506 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2021-11-02 22:09:10,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:09:10,789 INFO L93 Difference]: Finished difference Result 42187 states and 63896 transitions. [2021-11-02 22:09:10,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:09:10,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 124 [2021-11-02 22:09:10,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:09:10,836 INFO L225 Difference]: With dead ends: 42187 [2021-11-02 22:09:10,836 INFO L226 Difference]: Without dead ends: 22186 [2021-11-02 22:09:10,855 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:09:10,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22186 states. [2021-11-02 22:09:11,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22186 to 22108. [2021-11-02 22:09:11,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22108 states, 22085 states have (on average 1.509350237717908) internal successors, (33334), 22107 states have internal predecessors, (33334), 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) [2021-11-02 22:09:11,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22108 states to 22108 states and 33334 transitions. [2021-11-02 22:09:11,714 INFO L78 Accepts]: Start accepts. Automaton has 22108 states and 33334 transitions. Word has length 124 [2021-11-02 22:09:11,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:09:11,715 INFO L470 AbstractCegarLoop]: Abstraction has 22108 states and 33334 transitions. [2021-11-02 22:09:11,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2021-11-02 22:09:11,716 INFO L276 IsEmpty]: Start isEmpty. Operand 22108 states and 33334 transitions. [2021-11-02 22:09:11,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-02 22:09:11,720 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:09:11,720 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:09:11,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-02 22:09:11,720 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:09:11,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:11,721 INFO L85 PathProgramCache]: Analyzing trace with hash 563118547, now seen corresponding path program 1 times [2021-11-02 22:09:11,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:11,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86464498] [2021-11-02 22:09:11,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:11,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:11,886 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-02 22:09:11,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:09:11,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86464498] [2021-11-02 22:09:11,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86464498] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:09:11,887 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:09:11,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 22:09:11,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350967219] [2021-11-02 22:09:11,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:09:11,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:09:11,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:09:11,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:09:11,889 INFO L87 Difference]: Start difference. First operand 22108 states and 33334 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:12,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:09:12,781 INFO L93 Difference]: Finished difference Result 54514 states and 82430 transitions. [2021-11-02 22:09:12,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:09:12,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2021-11-02 22:09:12,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:09:12,841 INFO L225 Difference]: With dead ends: 54514 [2021-11-02 22:09:12,841 INFO L226 Difference]: Without dead ends: 32477 [2021-11-02 22:09:12,866 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:09:12,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32477 states. [2021-11-02 22:09:13,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32477 to 22028. [2021-11-02 22:09:13,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22028 states, 22005 states have (on average 1.510702113156101) internal successors, (33243), 22027 states have internal predecessors, (33243), 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) [2021-11-02 22:09:13,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22028 states to 22028 states and 33243 transitions. [2021-11-02 22:09:13,862 INFO L78 Accepts]: Start accepts. Automaton has 22028 states and 33243 transitions. Word has length 130 [2021-11-02 22:09:13,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:09:13,863 INFO L470 AbstractCegarLoop]: Abstraction has 22028 states and 33243 transitions. [2021-11-02 22:09:13,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:09:13,863 INFO L276 IsEmpty]: Start isEmpty. Operand 22028 states and 33243 transitions. [2021-11-02 22:09:13,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-02 22:09:13,869 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:09:13,869 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:09:13,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-02 22:09:13,870 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:09:13,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:13,870 INFO L85 PathProgramCache]: Analyzing trace with hash 710935276, now seen corresponding path program 1 times [2021-11-02 22:09:13,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:13,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413934761] [2021-11-02 22:09:13,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:13,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:14,093 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-02 22:09:14,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:09:14,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413934761] [2021-11-02 22:09:14,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413934761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:09:14,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:09:14,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:09:14,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495729787] [2021-11-02 22:09:14,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:09:14,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:09:14,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:09:14,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:09:14,097 INFO L87 Difference]: Start difference. First operand 22028 states and 33243 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2021-11-02 22:09:17,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:09:17,109 INFO L93 Difference]: Finished difference Result 52296 states and 79342 transitions. [2021-11-02 22:09:17,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:09:17,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 134 [2021-11-02 22:09:17,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:09:17,148 INFO L225 Difference]: With dead ends: 52296 [2021-11-02 22:09:17,148 INFO L226 Difference]: Without dead ends: 30339 [2021-11-02 22:09:17,174 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:09:17,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30339 states. [2021-11-02 22:09:17,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30339 to 30076. [2021-11-02 22:09:17,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30076 states, 30053 states have (on average 1.5214787209263634) internal successors, (45725), 30075 states have internal predecessors, (45725), 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) [2021-11-02 22:09:18,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30076 states to 30076 states and 45725 transitions. [2021-11-02 22:09:18,165 INFO L78 Accepts]: Start accepts. Automaton has 30076 states and 45725 transitions. Word has length 134 [2021-11-02 22:09:18,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:09:18,166 INFO L470 AbstractCegarLoop]: Abstraction has 30076 states and 45725 transitions. [2021-11-02 22:09:18,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2021-11-02 22:09:18,167 INFO L276 IsEmpty]: Start isEmpty. Operand 30076 states and 45725 transitions. [2021-11-02 22:09:18,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-02 22:09:18,173 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:09:18,173 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:09:18,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-02 22:09:18,174 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:09:18,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:18,175 INFO L85 PathProgramCache]: Analyzing trace with hash 985421901, now seen corresponding path program 1 times [2021-11-02 22:09:18,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:18,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992819705] [2021-11-02 22:09:18,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:18,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:18,440 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-02 22:09:18,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:09:18,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992819705] [2021-11-02 22:09:18,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992819705] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:09:18,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189868766] [2021-11-02 22:09:18,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:18,444 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:09:18,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:18,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:09:18,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-02 22:09:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:19,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 2245 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-02 22:09:19,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:09:19,644 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-02 22:09:19,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189868766] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:09:19,644 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:09:19,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-02 22:09:19,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236407098] [2021-11-02 22:09:19,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 22:09:19,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:09:19,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 22:09:19,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:09:19,646 INFO L87 Difference]: Start difference. First operand 30076 states and 45725 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 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) [2021-11-02 22:09:20,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:09:20,972 INFO L93 Difference]: Finished difference Result 60412 states and 92006 transitions. [2021-11-02 22:09:20,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 22:09:20,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 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 140 [2021-11-02 22:09:20,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:09:21,013 INFO L225 Difference]: With dead ends: 60412 [2021-11-02 22:09:21,014 INFO L226 Difference]: Without dead ends: 30373 [2021-11-02 22:09:21,043 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:09:21,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30373 states. [2021-11-02 22:09:21,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30373 to 30373. [2021-11-02 22:09:21,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30373 states, 30350 states have (on average 1.5163756177924217) internal successors, (46022), 30372 states have internal predecessors, (46022), 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) [2021-11-02 22:09:21,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30373 states to 30373 states and 46022 transitions. [2021-11-02 22:09:21,994 INFO L78 Accepts]: Start accepts. Automaton has 30373 states and 46022 transitions. Word has length 140 [2021-11-02 22:09:21,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:09:21,994 INFO L470 AbstractCegarLoop]: Abstraction has 30373 states and 46022 transitions. [2021-11-02 22:09:21,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 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) [2021-11-02 22:09:21,995 INFO L276 IsEmpty]: Start isEmpty. Operand 30373 states and 46022 transitions. [2021-11-02 22:09:22,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-02 22:09:22,000 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:09:22,001 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:09:22,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-02 22:09:22,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-02 22:09:22,218 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:09:22,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:22,218 INFO L85 PathProgramCache]: Analyzing trace with hash 716502535, now seen corresponding path program 2 times [2021-11-02 22:09:22,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:22,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422205707] [2021-11-02 22:09:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:22,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:22,494 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-02 22:09:22,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:09:22,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422205707] [2021-11-02 22:09:22,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422205707] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:09:22,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105757883] [2021-11-02 22:09:22,495 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 22:09:22,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:09:22,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:22,497 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:09:22,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-02 22:09:24,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-02 22:09:24,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:09:24,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 62 conjunts are in the unsatisfiable core [2021-11-02 22:09:24,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:09:24,855 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-02 22:09:24,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105757883] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:09:24,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:09:24,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2021-11-02 22:09:24,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010133789] [2021-11-02 22:09:24,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-02 22:09:24,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:09:24,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-02 22:09:24,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-11-02 22:09:24,859 INFO L87 Difference]: Start difference. First operand 30373 states and 46022 transitions. Second operand has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 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) [2021-11-02 22:09:33,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:09:33,272 INFO L93 Difference]: Finished difference Result 241566 states and 368709 transitions. [2021-11-02 22:09:33,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-02 22:09:33,272 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 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 149 [2021-11-02 22:09:33,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:09:33,873 INFO L225 Difference]: With dead ends: 241566 [2021-11-02 22:09:33,874 INFO L226 Difference]: Without dead ends: 211273 [2021-11-02 22:09:33,939 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=367, Invalid=1193, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 22:09:34,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211273 states. [2021-11-02 22:09:36,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211273 to 30469. [2021-11-02 22:09:36,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30469 states, 30446 states have (on average 1.5147474216645864) internal successors, (46118), 30468 states have internal predecessors, (46118), 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) [2021-11-02 22:09:37,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30469 states to 30469 states and 46118 transitions. [2021-11-02 22:09:37,013 INFO L78 Accepts]: Start accepts. Automaton has 30469 states and 46118 transitions. Word has length 149 [2021-11-02 22:09:37,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:09:37,013 INFO L470 AbstractCegarLoop]: Abstraction has 30469 states and 46118 transitions. [2021-11-02 22:09:37,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 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) [2021-11-02 22:09:37,014 INFO L276 IsEmpty]: Start isEmpty. Operand 30469 states and 46118 transitions. [2021-11-02 22:09:37,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-02 22:09:37,020 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:09:37,021 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:09:37,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:37,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-02 22:09:37,249 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:09:37,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:37,250 INFO L85 PathProgramCache]: Analyzing trace with hash -44268138, now seen corresponding path program 1 times [2021-11-02 22:09:37,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:37,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697473261] [2021-11-02 22:09:37,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:37,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-02 22:09:37,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:09:37,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697473261] [2021-11-02 22:09:37,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697473261] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:09:37,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122811515] [2021-11-02 22:09:37,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:37,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:09:37,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:37,518 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:09:37,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-02 22:09:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:38,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 2321 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-02 22:09:38,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:09:38,926 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-02 22:09:38,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122811515] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:09:38,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:09:38,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-02 22:09:38,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912008211] [2021-11-02 22:09:38,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-02 22:09:38,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:09:38,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-02 22:09:38,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-02 22:09:38,932 INFO L87 Difference]: Start difference. First operand 30469 states and 46118 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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) [2021-11-02 22:09:41,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:09:41,281 INFO L93 Difference]: Finished difference Result 61053 states and 92503 transitions. [2021-11-02 22:09:41,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 22:09:41,281 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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 155 [2021-11-02 22:09:41,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:09:41,319 INFO L225 Difference]: With dead ends: 61053 [2021-11-02 22:09:41,319 INFO L226 Difference]: Without dead ends: 30622 [2021-11-02 22:09:41,333 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-02 22:09:41,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30622 states. [2021-11-02 22:09:42,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30622 to 30622. [2021-11-02 22:09:43,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30622 states, 30599 states have (on average 1.512173600444459) internal successors, (46271), 30621 states have internal predecessors, (46271), 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) [2021-11-02 22:09:43,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30622 states to 30622 states and 46271 transitions. [2021-11-02 22:09:43,062 INFO L78 Accepts]: Start accepts. Automaton has 30622 states and 46271 transitions. Word has length 155 [2021-11-02 22:09:43,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:09:43,062 INFO L470 AbstractCegarLoop]: Abstraction has 30622 states and 46271 transitions. [2021-11-02 22:09:43,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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) [2021-11-02 22:09:43,063 INFO L276 IsEmpty]: Start isEmpty. Operand 30622 states and 46271 transitions. [2021-11-02 22:09:43,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-02 22:09:43,069 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:09:43,069 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:09:43,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-02 22:09:43,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-02 22:09:43,272 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:09:43,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:43,272 INFO L85 PathProgramCache]: Analyzing trace with hash 739040412, now seen corresponding path program 2 times [2021-11-02 22:09:43,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:43,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201960284] [2021-11-02 22:09:43,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:43,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:09:43,519 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-11-02 22:09:43,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:09:43,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201960284] [2021-11-02 22:09:43,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201960284] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:09:43,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565166252] [2021-11-02 22:09:43,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 22:09:43,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:09:43,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:09:43,521 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:09:43,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-02 22:09:55,035 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 22:09:55,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:09:55,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 2375 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-02 22:09:55,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:09:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-11-02 22:09:55,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565166252] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:09:55,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:09:55,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-02 22:09:55,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654945416] [2021-11-02 22:09:55,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-02 22:09:55,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:09:55,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-02 22:09:55,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-11-02 22:09:55,525 INFO L87 Difference]: Start difference. First operand 30622 states and 46271 transitions. Second operand has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 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) [2021-11-02 22:09:57,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:09:57,844 INFO L93 Difference]: Finished difference Result 61358 states and 92808 transitions. [2021-11-02 22:09:57,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-02 22:09:57,845 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 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 164 [2021-11-02 22:09:57,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:09:57,883 INFO L225 Difference]: With dead ends: 61358 [2021-11-02 22:09:57,883 INFO L226 Difference]: Without dead ends: 30775 [2021-11-02 22:09:57,903 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-11-02 22:09:57,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30775 states. [2021-11-02 22:09:59,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30775 to 30775. [2021-11-02 22:09:59,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30775 states, 30752 states have (on average 1.5096253902185224) internal successors, (46424), 30774 states have internal predecessors, (46424), 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) [2021-11-02 22:09:59,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30775 states to 30775 states and 46424 transitions. [2021-11-02 22:09:59,663 INFO L78 Accepts]: Start accepts. Automaton has 30775 states and 46424 transitions. Word has length 164 [2021-11-02 22:09:59,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:09:59,663 INFO L470 AbstractCegarLoop]: Abstraction has 30775 states and 46424 transitions. [2021-11-02 22:09:59,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 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) [2021-11-02 22:09:59,663 INFO L276 IsEmpty]: Start isEmpty. Operand 30775 states and 46424 transitions. [2021-11-02 22:09:59,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-02 22:09:59,667 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:09:59,667 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:09:59,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-02 22:09:59,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:09:59,877 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-02 22:09:59,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:09:59,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1806721622, now seen corresponding path program 3 times [2021-11-02 22:09:59,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:09:59,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062030517] [2021-11-02 22:09:59,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:09:59,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:09:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:10:00,129 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-02 22:10:00,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:10:00,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062030517] [2021-11-02 22:10:00,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062030517] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:10:00,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689438397] [2021-11-02 22:10:00,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 22:10:00,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:10:00,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:10:00,133 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:10:00,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8812ee-607e-4439-91a1-41d198b9cb23/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-02 22:11:27,267 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-02 22:11:27,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:11:27,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 2049 conjuncts, 71 conjunts are in the unsatisfiable core [2021-11-02 22:11:27,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:12:16,430 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_mousedev_connect_~mousedev~9.offset Int)) (let ((.cse0 (mod (mod (+ 2012 (* ULTIMATE.start_mousedev_connect_~mousedev~9.offset 18446744073709551615)) 18446744073709551616) 4294967296))) (and (<= ULTIMATE.start_mousedev_connect_~mousedev~9.offset 2147485660) (< 2012 ULTIMATE.start_mousedev_connect_~mousedev~9.offset) (= .cse0 (+ |c_ULTIMATE.start_mousedev_connect_#res| 4294967296)) (< 2147483647 .cse0)))) is different from false [2021-11-02 22:12:42,259 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-11-02 22:12:42,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689438397] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:12:42,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 22:12:42,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [7] total 21 [2021-11-02 22:12:42,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017661059] [2021-11-02 22:12:42,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-02 22:12:42,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:12:42,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-02 22:12:42,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=328, Unknown=6, NotChecked=36, Total=420 [2021-11-02 22:12:42,262 INFO L87 Difference]: Start difference. First operand 30775 states and 46424 transitions. Second operand has 16 states, 16 states have (on average 8.875) internal successors, (142), 16 states have internal predecessors, (142), 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) [2021-11-02 22:13:12,580 WARN L838 $PredicateComparison]: unable to prove that (and (= 0 |c_ULTIMATE.start_ERR_PTR_#res.base|) (<= 0 (+ c_ULTIMATE.start_mousedev_create_~error~2 2147483648)) (exists ((ULTIMATE.start_mousedev_connect_~mousedev~9.offset Int)) (and (= (+ 18446744073709551616 |c_ULTIMATE.start_PTR_ERR_#res|) (mod (+ 2012 (* ULTIMATE.start_mousedev_connect_~mousedev~9.offset 18446744073709551615)) 18446744073709551616)) (<= ULTIMATE.start_mousedev_connect_~mousedev~9.offset 2147485660) (< 2012 ULTIMATE.start_mousedev_connect_~mousedev~9.offset))) (< c_ULTIMATE.start_mousedev_create_~minor~1 0) (<= c_ULTIMATE.start_mousedev_connect_~mousedev~9.offset 2147485660) (exists ((ULTIMATE.start_mousedev_connect_~mousedev~9.offset Int)) (and (<= ULTIMATE.start_mousedev_connect_~mousedev~9.offset 2147485660) (< 2012 ULTIMATE.start_mousedev_connect_~mousedev~9.offset) (= (mod (+ 2012 (* ULTIMATE.start_mousedev_connect_~mousedev~9.offset 18446744073709551615)) 18446744073709551616) (+ 18446744073709551616 |c_ULTIMATE.start_ldv_ptr_err_#res|)))) (= |c_ULTIMATE.start_mousedev_create_#res.base| 0) (= |c_ULTIMATE.start_ldv_err_ptr_#res.base| 0) (< 2012 c_ULTIMATE.start_mousedev_connect_~mousedev~9.offset) (<= |c_ULTIMATE.start_mousedev_create_#res.offset| 2147485660) (<= 0 (+ |c_ULTIMATE.start_input_get_new_minor_#res| 2147483648)) (<= 0 (+ c_ULTIMATE.start_mousedev_reserve_minor_~minor~0 2147483648)) (<= |c_ULTIMATE.start_ERR_PTR_#res.offset| 2147485660) (<= 0 (+ 2147483648 c_ULTIMATE.start_mousedev_create_~minor~1)) (exists ((ULTIMATE.start_mousedev_connect_~mousedev~9.offset Int)) (let ((.cse0 (mod (mod (+ 2012 (* ULTIMATE.start_mousedev_connect_~mousedev~9.offset 18446744073709551615)) 18446744073709551616) 4294967296))) (and (<= ULTIMATE.start_mousedev_connect_~mousedev~9.offset 2147485660) (< 2012 ULTIMATE.start_mousedev_connect_~mousedev~9.offset) (= .cse0 (+ |c_ULTIMATE.start_mousedev_connect_#res| 4294967296)) (< 2147483647 .cse0)))) (< c_ULTIMATE.start_mousedev_create_~error~2 0) (<= 0 (+ |c_ULTIMATE.start_mousedev_reserve_minor_#res| 2147483648)) (< |c_ULTIMATE.start_mousedev_reserve_minor_#res| 0) (< 2012 |c_ULTIMATE.start_mousedev_create_#res.offset|) (< 2012 |c_ULTIMATE.start_ldv_err_ptr_#res.offset|) (< 2012 |c_ULTIMATE.start_ERR_PTR_#res.offset|) (< c_ULTIMATE.start_mousedev_reserve_minor_~minor~0 0) (= c_ULTIMATE.start_mousedev_connect_~mousedev~9.base 0) (<= |c_ULTIMATE.start_ldv_err_ptr_#res.offset| 2147485660)) is different from false [2021-11-02 22:15:19,063 WARN L838 $PredicateComparison]: unable to prove that (and (= 0 |c_ULTIMATE.start_ERR_PTR_#res.base|) (<= 0 (+ c_ULTIMATE.start_mousedev_create_~error~2 2147483648)) (exists ((ULTIMATE.start_mousedev_connect_~mousedev~9.offset Int)) (and (= (+ 18446744073709551616 |c_ULTIMATE.start_PTR_ERR_#res|) (mod (+ 2012 (* ULTIMATE.start_mousedev_connect_~mousedev~9.offset 18446744073709551615)) 18446744073709551616)) (<= ULTIMATE.start_mousedev_connect_~mousedev~9.offset 2147485660) (< 2012 ULTIMATE.start_mousedev_connect_~mousedev~9.offset))) (<= c_ULTIMATE.start_mousedev_connect_~mousedev~9.offset 2147485660) (exists ((ULTIMATE.start_mousedev_connect_~mousedev~9.offset Int)) (and (<= ULTIMATE.start_mousedev_connect_~mousedev~9.offset 2147485660) (< 2012 ULTIMATE.start_mousedev_connect_~mousedev~9.offset) (= (mod (+ 2012 (* ULTIMATE.start_mousedev_connect_~mousedev~9.offset 18446744073709551615)) 18446744073709551616) (+ 18446744073709551616 |c_ULTIMATE.start_ldv_ptr_err_#res|)))) (= |c_ULTIMATE.start_mousedev_create_#res.base| 0) (= |c_ULTIMATE.start_ldv_err_ptr_#res.base| 0) (< 2012 c_ULTIMATE.start_mousedev_connect_~mousedev~9.offset) (<= |c_ULTIMATE.start_mousedev_create_#res.offset| 2147485660) (<= 0 (+ |c_ULTIMATE.start_input_get_new_minor_#res| 2147483648)) (<= 0 (+ c_ULTIMATE.start_mousedev_reserve_minor_~minor~0 2147483648)) (<= |c_ULTIMATE.start_ERR_PTR_#res.offset| 2147485660) (exists ((ULTIMATE.start_mousedev_connect_~mousedev~9.offset Int)) (let ((.cse0 (mod (mod (+ 2012 (* ULTIMATE.start_mousedev_connect_~mousedev~9.offset 18446744073709551615)) 18446744073709551616) 4294967296))) (and (<= ULTIMATE.start_mousedev_connect_~mousedev~9.offset 2147485660) (< 2012 ULTIMATE.start_mousedev_connect_~mousedev~9.offset) (= .cse0 (+ |c_ULTIMATE.start_mousedev_connect_#res| 4294967296)) (< 2147483647 .cse0)))) (< c_ULTIMATE.start_mousedev_create_~error~2 0) (< 2012 |c_ULTIMATE.start_mousedev_create_#res.offset|) (< 2012 |c_ULTIMATE.start_ldv_err_ptr_#res.offset|) (< 2012 |c_ULTIMATE.start_ERR_PTR_#res.offset|) (= c_ULTIMATE.start_mousedev_connect_~mousedev~9.base 0) (<= |c_ULTIMATE.start_ldv_err_ptr_#res.offset| 2147485660)) is different from false [2021-11-02 22:16:20,742 WARN L207 SmtUtils]: Spent 8.61 s on a formula simplification that was a NOOP. DAG size: 23