./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX --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 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:40:58,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:40:58,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:40:58,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:40:58,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:40:58,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:40:58,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:40:58,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:40:58,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:40:58,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:40:58,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:40:58,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:40:58,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:40:58,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:40:58,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:40:58,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:40:58,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:40:58,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:40:58,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:40:58,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:40:58,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:40:58,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:40:58,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:40:58,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:40:58,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:40:58,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:40:58,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:40:58,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:40:58,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:40:58,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:40:58,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:40:58,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:40:58,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:40:58,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:40:58,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:40:58,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:40:58,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:40:58,770 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:40:58,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:40:58,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:40:58,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:40:58,774 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-09 08:40:58,821 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:40:58,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:40:58,822 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:40:58,822 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:40:58,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:40:58,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:40:58,824 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:40:58,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:40:58,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:40:58,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:40:58,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:40:58,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:40:58,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:40:58,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:40:58,827 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:40:58,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:40:58,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:40:58,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:40:58,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:40:58,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:40:58,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:40:58,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:40:58,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:40:58,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:40:58,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:40:58,830 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:40:58,830 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:40:58,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:40:58,830 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:40:58,833 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_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7137d136237382d1d4fe8b796308ccd9bf4f8cbcaceb3edb5e802731e648c2dd [2021-11-09 08:40:59,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:40:59,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:40:59,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:40:59,219 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:40:59,220 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:40:59,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-09 08:40:59,319 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/data/410b5025a/5fc713d080fd4bdd865a806ce211ed57/FLAG9b26f2627 [2021-11-09 08:41:00,269 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:41:00,270 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-09 08:41:00,328 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/data/410b5025a/5fc713d080fd4bdd865a806ce211ed57/FLAG9b26f2627 [2021-11-09 08:41:00,668 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/data/410b5025a/5fc713d080fd4bdd865a806ce211ed57 [2021-11-09 08:41:00,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:41:00,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:41:00,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:41:00,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:41:00,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:41:00,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:41:00" (1/1) ... [2021-11-09 08:41:00,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67f4b14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:41:00, skipping insertion in model container [2021-11-09 08:41:00,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:41:00" (1/1) ... [2021-11-09 08:41:00,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:41:00,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:41:03,709 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_925a6383-3072-4cd7-bcd8-ca900c183dc2/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i[298420,298433] [2021-11-09 08:41:03,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:41:03,836 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:41:04,312 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_925a6383-3072-4cd7-bcd8-ca900c183dc2/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i[298420,298433] [2021-11-09 08:41:04,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:41:04,657 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:41:04,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:41:04 WrapperNode [2021-11-09 08:41:04,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:41:04,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:41:04,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:41:04,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:41:04,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:41:04" (1/1) ... [2021-11-09 08:41:04,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:41:04" (1/1) ... [2021-11-09 08:41:06,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:41:06,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:41:06,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:41:06,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:41:06,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:41:04" (1/1) ... [2021-11-09 08:41:06,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:41:04" (1/1) ... [2021-11-09 08:41:06,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:41:04" (1/1) ... [2021-11-09 08:41:06,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:41:04" (1/1) ... [2021-11-09 08:41:07,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:41:04" (1/1) ... [2021-11-09 08:41:07,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:41:04" (1/1) ... [2021-11-09 08:41:07,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:41:04" (1/1) ... [2021-11-09 08:41:08,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:41:08,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:41:08,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:41:08,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:41:08,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:41:04" (1/1) ... [2021-11-09 08:41:08,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:41:08,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:41:08,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:41:08,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:41:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-09 08:41:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-09 08:41:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:41:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 08:41:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:41:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-09 08:41:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-09 08:41:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-09 08:41:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 08:41:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 08:41:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 08:41:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 08:41:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:41:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:41:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:41:37,502 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:41:37,503 INFO L299 CfgBuilder]: Removed 8487 assume(true) statements. [2021-11-09 08:41:37,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:41:37 BoogieIcfgContainer [2021-11-09 08:41:37,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:41:37,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:41:37,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:41:37,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:41:37,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:41:00" (1/3) ... [2021-11-09 08:41:37,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@caa769c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:41:37, skipping insertion in model container [2021-11-09 08:41:37,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:41:04" (2/3) ... [2021-11-09 08:41:37,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@caa769c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:41:37, skipping insertion in model container [2021-11-09 08:41:37,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:41:37" (3/3) ... [2021-11-09 08:41:37,522 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-468e4e3-1-204_8a-drivers--net--jme.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-09 08:41:37,528 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:41:37,529 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-09 08:41:37,616 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:41:37,622 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 [2021-11-09 08:41:37,623 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-09 08:41:37,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 5110 states, 5103 states have (on average 1.231628453850676) internal successors, (6285), 5109 states have internal predecessors, (6285), 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) [2021-11-09 08:41:37,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-09 08:41:37,735 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:41:37,736 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] [2021-11-09 08:41:37,737 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 08:41:37,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:41:37,741 INFO L85 PathProgramCache]: Analyzing trace with hash -623761508, now seen corresponding path program 1 times [2021-11-09 08:41:37,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:41:37,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600242670] [2021-11-09 08:41:37,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:37,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:41:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:41:38,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:41:38,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:41:38,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600242670] [2021-11-09 08:41:38,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600242670] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:41:38,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:41:38,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:41:38,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531029286] [2021-11-09 08:41:38,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 08:41:38,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:41:38,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 08:41:38,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:41:38,395 INFO L87 Difference]: Start difference. First operand has 5110 states, 5103 states have (on average 1.231628453850676) internal successors, (6285), 5109 states have internal predecessors, (6285), 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 34.5) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:41:38,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:41:38,634 INFO L93 Difference]: Finished difference Result 10186 states and 12525 transitions. [2021-11-09 08:41:38,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:41:38,635 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-09 08:41:38,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:41:38,682 INFO L225 Difference]: With dead ends: 10186 [2021-11-09 08:41:38,682 INFO L226 Difference]: Without dead ends: 5056 [2021-11-09 08:41:38,699 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 [2021-11-09 08:41:38,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5056 states. [2021-11-09 08:41:38,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5056 to 5056. [2021-11-09 08:41:38,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5056 states, 5050 states have (on average 1.218019801980198) internal successors, (6151), 5055 states have internal predecessors, (6151), 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) [2021-11-09 08:41:38,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5056 states to 5056 states and 6151 transitions. [2021-11-09 08:41:38,977 INFO L78 Accepts]: Start accepts. Automaton has 5056 states and 6151 transitions. Word has length 69 [2021-11-09 08:41:38,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:41:38,978 INFO L470 AbstractCegarLoop]: Abstraction has 5056 states and 6151 transitions. [2021-11-09 08:41:38,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:41:38,979 INFO L276 IsEmpty]: Start isEmpty. Operand 5056 states and 6151 transitions. [2021-11-09 08:41:38,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-09 08:41:38,989 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:41:38,989 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] [2021-11-09 08:41:38,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:41:38,994 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 08:41:38,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:41:38,997 INFO L85 PathProgramCache]: Analyzing trace with hash -606369396, now seen corresponding path program 1 times [2021-11-09 08:41:38,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:41:38,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432312434] [2021-11-09 08:41:38,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:38,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:41:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:41:39,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:41:39,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:41:39,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432312434] [2021-11-09 08:41:39,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432312434] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:41:39,450 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:41:39,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:41:39,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442690038] [2021-11-09 08:41:39,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:41:39,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:41:39,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:41:39,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:41:39,455 INFO L87 Difference]: Start difference. First operand 5056 states and 6151 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:41:42,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:41:42,023 INFO L93 Difference]: Finished difference Result 15006 states and 18281 transitions. [2021-11-09 08:41:42,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:41:42,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-09 08:41:42,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:41:42,090 INFO L225 Difference]: With dead ends: 15006 [2021-11-09 08:41:42,090 INFO L226 Difference]: Without dead ends: 10008 [2021-11-09 08:41:42,103 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 [2021-11-09 08:41:42,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10008 states. [2021-11-09 08:41:42,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10008 to 10000. [2021-11-09 08:41:42,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10000 states, 9994 states have (on average 1.2193315989593756) internal successors, (12186), 9999 states have internal predecessors, (12186), 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) [2021-11-09 08:41:42,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10000 states to 10000 states and 12186 transitions. [2021-11-09 08:41:42,742 INFO L78 Accepts]: Start accepts. Automaton has 10000 states and 12186 transitions. Word has length 69 [2021-11-09 08:41:42,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:41:42,743 INFO L470 AbstractCegarLoop]: Abstraction has 10000 states and 12186 transitions. [2021-11-09 08:41:42,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:41:42,743 INFO L276 IsEmpty]: Start isEmpty. Operand 10000 states and 12186 transitions. [2021-11-09 08:41:42,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-09 08:41:42,747 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:41:42,747 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] [2021-11-09 08:41:42,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 08:41:42,748 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 08:41:42,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:41:42,749 INFO L85 PathProgramCache]: Analyzing trace with hash -146693713, now seen corresponding path program 1 times [2021-11-09 08:41:42,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:41:42,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742759806] [2021-11-09 08:41:42,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:42,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:41:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:41:43,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:41:43,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:41:43,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742759806] [2021-11-09 08:41:43,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742759806] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:41:43,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:41:43,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:41:43,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842522244] [2021-11-09 08:41:43,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:41:43,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:41:43,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:41:43,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:41:43,016 INFO L87 Difference]: Start difference. First operand 10000 states and 12186 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-09 08:41:43,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:41:43,347 INFO L93 Difference]: Finished difference Result 10000 states and 12186 transitions. [2021-11-09 08:41:43,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:41:43,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-09 08:41:43,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:41:43,411 INFO L225 Difference]: With dead ends: 10000 [2021-11-09 08:41:43,412 INFO L226 Difference]: Without dead ends: 9998 [2021-11-09 08:41:43,417 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 [2021-11-09 08:41:43,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9998 states. [2021-11-09 08:41:43,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9998 to 9998. [2021-11-09 08:41:43,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9998 states, 9993 states have (on average 1.2192534774342039) internal successors, (12184), 9997 states have internal predecessors, (12184), 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) [2021-11-09 08:41:43,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9998 states to 9998 states and 12184 transitions. [2021-11-09 08:41:43,811 INFO L78 Accepts]: Start accepts. Automaton has 9998 states and 12184 transitions. Word has length 78 [2021-11-09 08:41:43,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:41:43,812 INFO L470 AbstractCegarLoop]: Abstraction has 9998 states and 12184 transitions. [2021-11-09 08:41:43,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-09 08:41:43,812 INFO L276 IsEmpty]: Start isEmpty. Operand 9998 states and 12184 transitions. [2021-11-09 08:41:43,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-09 08:41:43,815 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:41:43,815 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] [2021-11-09 08:41:43,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 08:41:43,816 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 08:41:43,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:41:43,817 INFO L85 PathProgramCache]: Analyzing trace with hash -252516706, now seen corresponding path program 1 times [2021-11-09 08:41:43,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:41:43,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446755755] [2021-11-09 08:41:43,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:43,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:41:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:41:44,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:41:44,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:41:44,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446755755] [2021-11-09 08:41:44,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446755755] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:41:44,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:41:44,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:41:44,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450437412] [2021-11-09 08:41:44,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:41:44,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:41:44,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:41:44,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:41:44,073 INFO L87 Difference]: Start difference. First operand 9998 states and 12184 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-09 08:41:45,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:41:45,038 INFO L93 Difference]: Finished difference Result 29844 states and 36397 transitions. [2021-11-09 08:41:45,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:41:45,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2021-11-09 08:41:45,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:41:45,111 INFO L225 Difference]: With dead ends: 29844 [2021-11-09 08:41:45,111 INFO L226 Difference]: Without dead ends: 19900 [2021-11-09 08:41:45,136 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 [2021-11-09 08:41:45,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19900 states. [2021-11-09 08:41:46,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19900 to 19896. [2021-11-09 08:41:46,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19896 states, 19891 states have (on average 1.2194962545875019) internal successors, (24257), 19895 states have internal predecessors, (24257), 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) [2021-11-09 08:41:46,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19896 states to 19896 states and 24257 transitions. [2021-11-09 08:41:46,102 INFO L78 Accepts]: Start accepts. Automaton has 19896 states and 24257 transitions. Word has length 79 [2021-11-09 08:41:46,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:41:46,103 INFO L470 AbstractCegarLoop]: Abstraction has 19896 states and 24257 transitions. [2021-11-09 08:41:46,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-09 08:41:46,104 INFO L276 IsEmpty]: Start isEmpty. Operand 19896 states and 24257 transitions. [2021-11-09 08:41:46,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-09 08:41:46,133 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:41:46,133 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:41:46,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 08:41:46,134 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 08:41:46,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:41:46,135 INFO L85 PathProgramCache]: Analyzing trace with hash 976309893, now seen corresponding path program 1 times [2021-11-09 08:41:46,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:41:46,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420249207] [2021-11-09 08:41:46,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:46,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:41:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:41:46,505 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:41:46,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:41:46,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420249207] [2021-11-09 08:41:46,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420249207] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:41:46,507 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:41:46,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:41:46,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257929189] [2021-11-09 08:41:46,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:41:46,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:41:46,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:41:46,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:41:46,510 INFO L87 Difference]: Start difference. First operand 19896 states and 24257 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-11-09 08:41:48,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:41:48,142 INFO L93 Difference]: Finished difference Result 53309 states and 64925 transitions. [2021-11-09 08:41:48,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:41:48,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 163 [2021-11-09 08:41:48,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:41:48,242 INFO L225 Difference]: With dead ends: 53309 [2021-11-09 08:41:48,242 INFO L226 Difference]: Without dead ends: 33471 [2021-11-09 08:41:48,285 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 [2021-11-09 08:41:48,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33471 states. [2021-11-09 08:41:49,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33471 to 31820. [2021-11-09 08:41:49,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31820 states, 31815 states have (on average 1.2208077950652207) internal successors, (38840), 31819 states have internal predecessors, (38840), 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) [2021-11-09 08:41:49,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31820 states to 31820 states and 38840 transitions. [2021-11-09 08:41:49,587 INFO L78 Accepts]: Start accepts. Automaton has 31820 states and 38840 transitions. Word has length 163 [2021-11-09 08:41:49,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:41:49,588 INFO L470 AbstractCegarLoop]: Abstraction has 31820 states and 38840 transitions. [2021-11-09 08:41:49,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-11-09 08:41:49,589 INFO L276 IsEmpty]: Start isEmpty. Operand 31820 states and 38840 transitions. [2021-11-09 08:41:49,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-09 08:41:49,613 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:41:49,614 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:41:49,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 08:41:49,615 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 08:41:49,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:41:49,615 INFO L85 PathProgramCache]: Analyzing trace with hash -783847760, now seen corresponding path program 1 times [2021-11-09 08:41:49,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:41:49,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888907992] [2021-11-09 08:41:49,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:49,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:41:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:41:50,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:41:50,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:41:50,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888907992] [2021-11-09 08:41:50,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888907992] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:41:50,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:41:50,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:41:50,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528121923] [2021-11-09 08:41:50,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:41:50,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:41:50,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:41:50,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:41:50,197 INFO L87 Difference]: Start difference. First operand 31820 states and 38840 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2021-11-09 08:41:51,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:41:51,843 INFO L93 Difference]: Finished difference Result 77335 states and 94854 transitions. [2021-11-09 08:41:51,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:41:51,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 278 [2021-11-09 08:41:51,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:41:51,980 INFO L225 Difference]: With dead ends: 77335 [2021-11-09 08:41:51,980 INFO L226 Difference]: Without dead ends: 45573 [2021-11-09 08:41:52,037 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 [2021-11-09 08:41:52,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45573 states. [2021-11-09 08:41:53,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45573 to 45564. [2021-11-09 08:41:53,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45564 states, 45559 states have (on average 1.2305362277486336) internal successors, (56062), 45563 states have internal predecessors, (56062), 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) [2021-11-09 08:41:53,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45564 states to 45564 states and 56062 transitions. [2021-11-09 08:41:53,890 INFO L78 Accepts]: Start accepts. Automaton has 45564 states and 56062 transitions. Word has length 278 [2021-11-09 08:41:53,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:41:53,890 INFO L470 AbstractCegarLoop]: Abstraction has 45564 states and 56062 transitions. [2021-11-09 08:41:53,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2021-11-09 08:41:53,891 INFO L276 IsEmpty]: Start isEmpty. Operand 45564 states and 56062 transitions. [2021-11-09 08:41:53,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-11-09 08:41:53,918 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:41:53,918 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:41:53,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 08:41:53,919 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 08:41:53,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:41:53,920 INFO L85 PathProgramCache]: Analyzing trace with hash 2075658536, now seen corresponding path program 1 times [2021-11-09 08:41:53,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:41:53,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064984299] [2021-11-09 08:41:53,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:53,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:41:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:41:54,572 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:41:54,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:41:54,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064984299] [2021-11-09 08:41:54,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064984299] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:41:54,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233674937] [2021-11-09 08:41:54,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:41:54,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:41:54,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:41:54,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:41:54,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 08:41:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:41:56,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 6404 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 08:41:56,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:41:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:41:57,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233674937] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:41:57,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 08:41:57,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-09 08:41:57,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876368126] [2021-11-09 08:41:57,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:41:57,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:41:57,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:41:57,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:41:57,522 INFO L87 Difference]: Start difference. First operand 45564 states and 56062 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2021-11-09 08:41:59,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:41:59,763 INFO L93 Difference]: Finished difference Result 105159 states and 129954 transitions. [2021-11-09 08:41:59,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:41:59,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 325 [2021-11-09 08:41:59,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:41:59,943 INFO L225 Difference]: With dead ends: 105159 [2021-11-09 08:41:59,944 INFO L226 Difference]: Without dead ends: 59653 [2021-11-09 08:42:00,017 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:42:00,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59653 states. [2021-11-09 08:42:02,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59653 to 59644. [2021-11-09 08:42:02,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59644 states, 59639 states have (on average 1.2373782256577073) internal successors, (73796), 59643 states have internal predecessors, (73796), 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) [2021-11-09 08:42:02,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59644 states to 59644 states and 73796 transitions. [2021-11-09 08:42:02,699 INFO L78 Accepts]: Start accepts. Automaton has 59644 states and 73796 transitions. Word has length 325 [2021-11-09 08:42:02,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:42:02,700 INFO L470 AbstractCegarLoop]: Abstraction has 59644 states and 73796 transitions. [2021-11-09 08:42:02,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2021-11-09 08:42:02,700 INFO L276 IsEmpty]: Start isEmpty. Operand 59644 states and 73796 transitions. [2021-11-09 08:42:02,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-11-09 08:42:02,738 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:42:02,739 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:42:02,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 08:42:02,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-09 08:42:02,967 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 08:42:02,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:02,967 INFO L85 PathProgramCache]: Analyzing trace with hash -39876190, now seen corresponding path program 1 times [2021-11-09 08:42:02,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:02,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807818643] [2021-11-09 08:42:02,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:02,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:03,564 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-09 08:42:03,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:03,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807818643] [2021-11-09 08:42:03,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807818643] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:03,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:03,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:42:03,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013893364] [2021-11-09 08:42:03,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:42:03,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:03,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:42:03,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:42:03,572 INFO L87 Difference]: Start difference. First operand 59644 states and 73796 transitions. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2021-11-09 08:42:06,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:42:06,621 INFO L93 Difference]: Finished difference Result 120238 states and 148633 transitions. [2021-11-09 08:42:06,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:42:06,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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 348 [2021-11-09 08:42:06,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:42:06,790 INFO L225 Difference]: With dead ends: 120238 [2021-11-09 08:42:06,790 INFO L226 Difference]: Without dead ends: 60652 [2021-11-09 08:42:06,948 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 [2021-11-09 08:42:07,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60652 states. [2021-11-09 08:42:09,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60652 to 59692. [2021-11-09 08:42:09,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59692 states, 59687 states have (on average 1.2371873272236835) internal successors, (73844), 59691 states have internal predecessors, (73844), 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) [2021-11-09 08:42:09,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59692 states to 59692 states and 73844 transitions. [2021-11-09 08:42:09,325 INFO L78 Accepts]: Start accepts. Automaton has 59692 states and 73844 transitions. Word has length 348 [2021-11-09 08:42:09,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:42:09,326 INFO L470 AbstractCegarLoop]: Abstraction has 59692 states and 73844 transitions. [2021-11-09 08:42:09,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2021-11-09 08:42:09,326 INFO L276 IsEmpty]: Start isEmpty. Operand 59692 states and 73844 transitions. [2021-11-09 08:42:09,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-11-09 08:42:09,386 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:42:09,387 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:42:09,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-09 08:42:09,387 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 08:42:09,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:09,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1610861700, now seen corresponding path program 1 times [2021-11-09 08:42:09,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:09,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580084321] [2021-11-09 08:42:09,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:09,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:09,963 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-09 08:42:09,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:09,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580084321] [2021-11-09 08:42:09,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580084321] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:42:09,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:42:09,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:42:09,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561909520] [2021-11-09 08:42:09,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:42:09,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:09,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:42:09,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:42:09,969 INFO L87 Difference]: Start difference. First operand 59692 states and 73844 transitions. Second operand has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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) [2021-11-09 08:42:12,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:42:12,521 INFO L93 Difference]: Finished difference Result 119806 states and 148153 transitions. [2021-11-09 08:42:12,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:42:12,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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 360 [2021-11-09 08:42:12,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:42:12,674 INFO L225 Difference]: With dead ends: 119806 [2021-11-09 08:42:12,674 INFO L226 Difference]: Without dead ends: 60172 [2021-11-09 08:42:12,780 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 [2021-11-09 08:42:12,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60172 states. [2021-11-09 08:42:14,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60172 to 59740. [2021-11-09 08:42:14,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59740 states, 59735 states have (on average 1.2369967355821545) internal successors, (73892), 59739 states have internal predecessors, (73892), 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) [2021-11-09 08:42:14,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59740 states to 59740 states and 73892 transitions. [2021-11-09 08:42:14,912 INFO L78 Accepts]: Start accepts. Automaton has 59740 states and 73892 transitions. Word has length 360 [2021-11-09 08:42:14,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:42:14,913 INFO L470 AbstractCegarLoop]: Abstraction has 59740 states and 73892 transitions. [2021-11-09 08:42:14,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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) [2021-11-09 08:42:14,913 INFO L276 IsEmpty]: Start isEmpty. Operand 59740 states and 73892 transitions. [2021-11-09 08:42:14,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-11-09 08:42:14,949 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:42:14,950 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:42:14,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-09 08:42:14,950 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 08:42:14,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:14,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1456428464, now seen corresponding path program 1 times [2021-11-09 08:42:14,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:14,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798519818] [2021-11-09 08:42:14,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:14,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:15,537 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-09 08:42:15,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:15,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798519818] [2021-11-09 08:42:15,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798519818] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:42:15,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333282707] [2021-11-09 08:42:15,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:15,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:42:15,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:42:15,542 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:42:15,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-09 08:42:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:17,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 6878 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 08:42:17,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:42:18,952 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-09 08:42:18,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333282707] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:42:18,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:42:18,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-11-09 08:42:18,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015568329] [2021-11-09 08:42:18,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 08:42:18,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:42:18,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:42:18,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:42:18,956 INFO L87 Difference]: Start difference. First operand 59740 states and 73892 transitions. Second operand has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 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) [2021-11-09 08:42:21,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:42:21,806 INFO L93 Difference]: Finished difference Result 120334 states and 148681 transitions. [2021-11-09 08:42:21,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:42:21,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 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 370 [2021-11-09 08:42:21,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:42:21,913 INFO L225 Difference]: With dead ends: 120334 [2021-11-09 08:42:21,913 INFO L226 Difference]: Without dead ends: 60652 [2021-11-09 08:42:21,976 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:42:22,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60652 states. [2021-11-09 08:42:23,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60652 to 60220. [2021-11-09 08:42:23,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60220 states, 60215 states have (on average 1.23510753134601) internal successors, (74372), 60219 states have internal predecessors, (74372), 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) [2021-11-09 08:42:24,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60220 states to 60220 states and 74372 transitions. [2021-11-09 08:42:24,026 INFO L78 Accepts]: Start accepts. Automaton has 60220 states and 74372 transitions. Word has length 370 [2021-11-09 08:42:24,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:42:24,027 INFO L470 AbstractCegarLoop]: Abstraction has 60220 states and 74372 transitions. [2021-11-09 08:42:24,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 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) [2021-11-09 08:42:24,028 INFO L276 IsEmpty]: Start isEmpty. Operand 60220 states and 74372 transitions. [2021-11-09 08:42:24,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2021-11-09 08:42:24,053 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:42:24,054 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:42:24,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-09 08:42:24,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-09 08:42:24,270 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-09 08:42:24,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:42:24,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2146154780, now seen corresponding path program 2 times [2021-11-09 08:42:24,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:42:24,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875686644] [2021-11-09 08:42:24,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:42:24,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:42:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:42:24,977 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-09 08:42:24,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:42:24,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875686644] [2021-11-09 08:42:24,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875686644] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:42:24,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094726294] [2021-11-09 08:42:24,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:42:24,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:42:24,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:42:24,980 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:42:24,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925a6383-3072-4cd7-bcd8-ca900c183dc2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process