./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac8687a-70d9-4946-92c2-99edf21e8f9d/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac8687a-70d9-4946-92c2-99edf21e8f9d/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac8687a-70d9-4946-92c2-99edf21e8f9d/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac8687a-70d9-4946-92c2-99edf21e8f9d/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac8687a-70d9-4946-92c2-99edf21e8f9d/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac8687a-70d9-4946-92c2-99edf21e8f9d/bin/uautomizer-w2VwFs6gM0 --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 709e000bdea0bf1517f1edc69f1d5199e729e3cf1effc12ce3f796e9f1102469 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:19:27,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:19:27,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:19:27,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:19:27,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:19:27,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:19:27,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:19:27,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:19:27,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:19:27,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:19:27,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:19:27,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:19:27,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:19:27,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:19:27,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:19:27,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:19:27,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:19:27,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:19:27,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:19:27,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:19:27,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:19:27,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:19:27,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:19:27,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:19:27,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:19:27,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:19:27,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:19:27,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:19:27,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:19:27,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:19:27,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:19:27,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:19:27,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:19:27,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:19:27,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:19:27,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:19:27,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:19:27,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:19:27,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:19:27,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:19:27,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:19:27,816 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac8687a-70d9-4946-92c2-99edf21e8f9d/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 15:19:27,841 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:19:27,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:19:27,842 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:19:27,842 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:19:27,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:19:27,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:19:27,844 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:19:27,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:19:27,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:19:27,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:19:27,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:19:27,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:19:27,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:19:27,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:19:27,846 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:19:27,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:19:27,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:19:27,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:19:27,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:19:27,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:19:27,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:19:27,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:19:27,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:19:27,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:19:27,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:19:27,848 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:19:27,848 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:19:27,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:19:27,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:19:27,849 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_9ac8687a-70d9-4946-92c2-99edf21e8f9d/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac8687a-70d9-4946-92c2-99edf21e8f9d/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 709e000bdea0bf1517f1edc69f1d5199e729e3cf1effc12ce3f796e9f1102469 [2021-11-22 15:19:28,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:19:28,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:19:28,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:19:28,224 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:19:28,225 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:19:28,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac8687a-70d9-4946-92c2-99edf21e8f9d/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i [2021-11-22 15:19:28,300 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac8687a-70d9-4946-92c2-99edf21e8f9d/bin/uautomizer-w2VwFs6gM0/data/1c9ba4531/588f48dfd7924ff09928f63a58d59798/FLAGa2a38c4c2 [2021-11-22 15:19:29,181 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:19:29,183 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac8687a-70d9-4946-92c2-99edf21e8f9d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i [2021-11-22 15:19:29,245 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac8687a-70d9-4946-92c2-99edf21e8f9d/bin/uautomizer-w2VwFs6gM0/data/1c9ba4531/588f48dfd7924ff09928f63a58d59798/FLAGa2a38c4c2 [2021-11-22 15:19:29,644 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac8687a-70d9-4946-92c2-99edf21e8f9d/bin/uautomizer-w2VwFs6gM0/data/1c9ba4531/588f48dfd7924ff09928f63a58d59798 [2021-11-22 15:19:29,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:19:29,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:19:29,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:19:29,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:19:29,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:19:29,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:19:29" (1/1) ... [2021-11-22 15:19:29,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45c53299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:29, skipping insertion in model container [2021-11-22 15:19:29,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:19:29" (1/1) ... [2021-11-22 15:19:29,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:19:29,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:19:31,965 WARN L230 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_9ac8687a-70d9-4946-92c2-99edf21e8f9d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i[185756,185769] [2021-11-22 15:19:32,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:19:32,118 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:19:32,691 WARN L230 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_9ac8687a-70d9-4946-92c2-99edf21e8f9d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i[185756,185769] [2021-11-22 15:19:32,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:19:32,873 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:19:32,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:32 WrapperNode [2021-11-22 15:19:32,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:19:32,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:19:32,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:19:32,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:19:32,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:32" (1/1) ... [2021-11-22 15:19:33,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:32" (1/1) ... [2021-11-22 15:19:34,491 INFO L137 Inliner]: procedures = 286, calls = 2230, calls flagged for inlining = 604, calls inlined = 3466, statements flattened = 54396 [2021-11-22 15:19:34,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:19:34,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:19:34,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:19:34,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:19:34,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:32" (1/1) ... [2021-11-22 15:19:34,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:32" (1/1) ... [2021-11-22 15:19:34,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:32" (1/1) ... [2021-11-22 15:19:34,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:32" (1/1) ... [2021-11-22 15:19:35,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:32" (1/1) ... [2021-11-22 15:19:36,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:32" (1/1) ... [2021-11-22 15:19:36,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:32" (1/1) ... [2021-11-22 15:19:36,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:19:36,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:19:36,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:19:36,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:19:36,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:32" (1/1) ... [2021-11-22 15:19:36,490 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:19:36,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac8687a-70d9-4946-92c2-99edf21e8f9d/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:19:36,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac8687a-70d9-4946-92c2-99edf21e8f9d/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:19:36,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac8687a-70d9-4946-92c2-99edf21e8f9d/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:19:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 15:19:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 15:19:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:19:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 15:19:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-22 15:19:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:19:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 15:19:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 15:19:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 15:19:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 15:19:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 15:19:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 15:19:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:19:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 15:19:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:19:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:19:36,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:19:37,502 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:19:37,504 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:19:37,862 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-22 15:19:37,931 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-22 15:20:09,718 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3547: assume !vfio_pci_ioctl_#t~short192#1;call vfio_pci_ioctl_#t~mem188#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem190#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 8 + (1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem188#1 % 4294967296)), 8);call vfio_pci_ioctl_#t~mem189#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem191#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem189#1 % 4294967296), 8);vfio_pci_ioctl_#t~short192#1 := vfio_pci_ioctl_#t~mem190#1 % 18446744073709551616 != vfio_pci_ioctl_#t~mem191#1 % 18446744073709551616; [2021-11-22 15:20:09,719 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3546: assume vfio_pci_ioctl_#t~short192#1; [2021-11-22 15:20:09,720 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4594: assume vfio_pci_ioctl_#t~short192#1; [2021-11-22 15:20:09,721 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4595: assume !vfio_pci_ioctl_#t~short192#1;call vfio_pci_ioctl_#t~mem188#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem190#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 8 + (1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem188#1 % 4294967296)), 8);call vfio_pci_ioctl_#t~mem189#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem191#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem189#1 % 4294967296), 8);vfio_pci_ioctl_#t~short192#1 := vfio_pci_ioctl_#t~mem190#1 % 18446744073709551616 != vfio_pci_ioctl_#t~mem191#1 % 18446744073709551616; [2021-11-22 15:20:09,721 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754: assume vfio_pci_ioctl_#t~short192#1;havoc vfio_pci_ioctl_#t~mem186#1;havoc vfio_pci_ioctl_#t~mem187#1;havoc vfio_pci_ioctl_#t~mem188#1;havoc vfio_pci_ioctl_#t~mem190#1;havoc vfio_pci_ioctl_#t~mem189#1;havoc vfio_pci_ioctl_#t~mem191#1;havoc vfio_pci_ioctl_#t~short192#1;call vfio_pci_ioctl_#t~mem193#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem195#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 8 + (1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem193#1 % 4294967296)), 8);call vfio_pci_ioctl_#t~mem194#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem196#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem194#1 % 4294967296), 8);call write~int(1 + (vfio_pci_ioctl_#t~mem195#1 - vfio_pci_ioctl_#t~mem196#1), vfio_pci_ioctl_~#info___0~0#1.base, 16 + vfio_pci_ioctl_~#info___0~0#1.offset, 8);havoc vfio_pci_ioctl_#t~mem193#1;havoc vfio_pci_ioctl_#t~mem195#1;havoc vfio_pci_ioctl_#t~mem194#1;havoc vfio_pci_ioctl_#t~mem196#1; [2021-11-22 15:20:09,722 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754: assume !vfio_pci_ioctl_#t~short192#1;havoc vfio_pci_ioctl_#t~mem186#1;havoc vfio_pci_ioctl_#t~mem187#1;havoc vfio_pci_ioctl_#t~mem188#1;havoc vfio_pci_ioctl_#t~mem190#1;havoc vfio_pci_ioctl_#t~mem189#1;havoc vfio_pci_ioctl_#t~mem191#1;havoc vfio_pci_ioctl_#t~short192#1;call write~int(0, vfio_pci_ioctl_~#info___0~0#1.base, 16 + vfio_pci_ioctl_~#info___0~0#1.offset, 8); [2021-11-22 15:20:09,722 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754-2: call vfio_pci_ioctl_#t~mem197#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 16 + vfio_pci_ioctl_~#info___0~0#1.offset, 8); [2021-11-22 15:20:09,722 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754-3: assume vfio_pci_ioctl_#t~short192#1;havoc vfio_pci_ioctl_#t~mem186#1;havoc vfio_pci_ioctl_#t~mem187#1;havoc vfio_pci_ioctl_#t~mem188#1;havoc vfio_pci_ioctl_#t~mem190#1;havoc vfio_pci_ioctl_#t~mem189#1;havoc vfio_pci_ioctl_#t~mem191#1;havoc vfio_pci_ioctl_#t~short192#1;call vfio_pci_ioctl_#t~mem193#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem195#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 8 + (1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem193#1 % 4294967296)), 8);call vfio_pci_ioctl_#t~mem194#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem196#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem194#1 % 4294967296), 8);call write~int(1 + (vfio_pci_ioctl_#t~mem195#1 - vfio_pci_ioctl_#t~mem196#1), vfio_pci_ioctl_~#info___0~0#1.base, 16 + vfio_pci_ioctl_~#info___0~0#1.offset, 8);havoc vfio_pci_ioctl_#t~mem193#1;havoc vfio_pci_ioctl_#t~mem195#1;havoc vfio_pci_ioctl_#t~mem194#1;havoc vfio_pci_ioctl_#t~mem196#1; [2021-11-22 15:20:09,723 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754-3: assume !vfio_pci_ioctl_#t~short192#1;havoc vfio_pci_ioctl_#t~mem186#1;havoc vfio_pci_ioctl_#t~mem187#1;havoc vfio_pci_ioctl_#t~mem188#1;havoc vfio_pci_ioctl_#t~mem190#1;havoc vfio_pci_ioctl_#t~mem189#1;havoc vfio_pci_ioctl_#t~mem191#1;havoc vfio_pci_ioctl_#t~short192#1;call write~int(0, vfio_pci_ioctl_~#info___0~0#1.base, 16 + vfio_pci_ioctl_~#info___0~0#1.offset, 8); [2021-11-22 15:20:09,723 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754-5: call vfio_pci_ioctl_#t~mem197#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 16 + vfio_pci_ioctl_~#info___0~0#1.offset, 8); [2021-11-22 15:20:09,723 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759-1: assume 0 == vfio_pci_ioctl_#t~mem197#1 % 18446744073709551616;havoc vfio_pci_ioctl_#t~mem197#1;call write~int(0, vfio_pci_ioctl_~#info___0~0#1.base, 4 + vfio_pci_ioctl_~#info___0~0#1.offset, 4); [2021-11-22 15:20:09,723 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759-1: assume !(0 == vfio_pci_ioctl_#t~mem197#1 % 18446744073709551616);havoc vfio_pci_ioctl_#t~mem197#1;call write~int(3, vfio_pci_ioctl_~#info___0~0#1.base, 4 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem198#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem199#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 24 + (1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem198#1 % 4294967296)), 8);vfio_pci_ioctl_#t~short201#1 := 0 != ~bitwiseAnd(vfio_pci_ioctl_#t~mem199#1, 512) % 18446744073709551616; [2021-11-22 15:20:09,723 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759: assume 0 == vfio_pci_ioctl_#t~mem197#1 % 18446744073709551616;havoc vfio_pci_ioctl_#t~mem197#1;call write~int(0, vfio_pci_ioctl_~#info___0~0#1.base, 4 + vfio_pci_ioctl_~#info___0~0#1.offset, 4); [2021-11-22 15:20:09,724 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759: assume !(0 == vfio_pci_ioctl_#t~mem197#1 % 18446744073709551616);havoc vfio_pci_ioctl_#t~mem197#1;call write~int(3, vfio_pci_ioctl_~#info___0~0#1.base, 4 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem198#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem199#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 24 + (1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem198#1 % 4294967296)), 8);vfio_pci_ioctl_#t~short201#1 := 0 != ~bitwiseAnd(vfio_pci_ioctl_#t~mem199#1, 512) % 18446744073709551616; [2021-11-22 15:20:09,724 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765: assume vfio_pci_ioctl_#t~short201#1;call vfio_pci_ioctl_#t~mem200#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 16 + vfio_pci_ioctl_~#info___0~0#1.offset, 8);vfio_pci_ioctl_#t~short201#1 := vfio_pci_ioctl_#t~mem200#1 % 18446744073709551616 > 4095; [2021-11-22 15:20:09,724 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765: assume !vfio_pci_ioctl_#t~short201#1; [2021-11-22 15:20:09,724 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-2: assume vfio_pci_ioctl_#t~short201#1;havoc vfio_pci_ioctl_#t~mem198#1;havoc vfio_pci_ioctl_#t~mem199#1;havoc vfio_pci_ioctl_#t~mem200#1;havoc vfio_pci_ioctl_#t~short201#1;call vfio_pci_ioctl_#t~mem202#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 4 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call write~int(~bitwiseOr(vfio_pci_ioctl_#t~mem202#1, 4), vfio_pci_ioctl_~#info___0~0#1.base, 4 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);havoc vfio_pci_ioctl_#t~mem202#1; [2021-11-22 15:20:09,725 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-2: assume !vfio_pci_ioctl_#t~short201#1;havoc vfio_pci_ioctl_#t~mem198#1;havoc vfio_pci_ioctl_#t~mem199#1;havoc vfio_pci_ioctl_#t~mem200#1;havoc vfio_pci_ioctl_#t~short201#1; [2021-11-22 15:20:09,725 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-5: assume vfio_pci_ioctl_#t~short201#1;call vfio_pci_ioctl_#t~mem200#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 16 + vfio_pci_ioctl_~#info___0~0#1.offset, 8);vfio_pci_ioctl_#t~short201#1 := vfio_pci_ioctl_#t~mem200#1 % 18446744073709551616 > 4095; [2021-11-22 15:20:09,725 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-5: assume !vfio_pci_ioctl_#t~short201#1; [2021-11-22 15:20:09,725 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-7: assume vfio_pci_ioctl_#t~short201#1;havoc vfio_pci_ioctl_#t~mem198#1;havoc vfio_pci_ioctl_#t~mem199#1;havoc vfio_pci_ioctl_#t~mem200#1;havoc vfio_pci_ioctl_#t~short201#1;call vfio_pci_ioctl_#t~mem202#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 4 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call write~int(~bitwiseOr(vfio_pci_ioctl_#t~mem202#1, 4), vfio_pci_ioctl_~#info___0~0#1.base, 4 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);havoc vfio_pci_ioctl_#t~mem202#1; [2021-11-22 15:20:09,725 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-7: assume !vfio_pci_ioctl_#t~short201#1;havoc vfio_pci_ioctl_#t~mem198#1;havoc vfio_pci_ioctl_#t~mem199#1;havoc vfio_pci_ioctl_#t~mem200#1;havoc vfio_pci_ioctl_#t~short201#1; [2021-11-22 15:20:09,728 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:20:09,795 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:20:09,795 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 15:20:09,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:20:09 BoogieIcfgContainer [2021-11-22 15:20:09,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:20:09,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:20:09,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:20:09,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:20:09,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:19:29" (1/3) ... [2021-11-22 15:20:09,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d57df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:20:09, skipping insertion in model container [2021-11-22 15:20:09,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:32" (2/3) ... [2021-11-22 15:20:09,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d57df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:20:09, skipping insertion in model container [2021-11-22 15:20:09,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:20:09" (3/3) ... [2021-11-22 15:20:09,817 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i [2021-11-22 15:20:09,824 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:20:09,825 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-22 15:20:09,916 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:20:09,924 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 [2021-11-22 15:20:09,925 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-22 15:20:10,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 8106 states, 8098 states have (on average 1.4396147196838727) internal successors, (11658), 8105 states have internal predecessors, (11658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:10,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-22 15:20:10,097 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:20:10,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:20:10,099 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 15:20:10,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:20:10,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1781252491, now seen corresponding path program 1 times [2021-11-22 15:20:10,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:20:10,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864929679] [2021-11-22 15:20:10,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:20:10,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:20:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:20:10,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:20:10,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:20:10,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864929679] [2021-11-22 15:20:10,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864929679] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:20:10,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:20:10,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:20:10,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943579995] [2021-11-22 15:20:10,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:20:10,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:20:10,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:20:10,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:20:10,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:20:10,837 INFO L87 Difference]: Start difference. First operand has 8106 states, 8098 states have (on average 1.4396147196838727) internal successors, (11658), 8105 states have internal predecessors, (11658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:11,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:20:11,728 INFO L93 Difference]: Finished difference Result 16567 states and 23758 transitions. [2021-11-22 15:20:11,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:20:11,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2021-11-22 15:20:11,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:20:11,818 INFO L225 Difference]: With dead ends: 16567 [2021-11-22 15:20:11,818 INFO L226 Difference]: Without dead ends: 8456 [2021-11-22 15:20:11,842 INFO L932 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 [2021-11-22 15:20:11,846 INFO L933 BasicCegarLoop]: 11536 mSDtfsCounter, 427 mSDsluCounter, 11505 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 23041 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:20:11,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 23041 Invalid, 29 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:20:11,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8456 states. [2021-11-22 15:20:12,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8456 to 8420. [2021-11-22 15:20:12,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8420 states, 8413 states have (on average 1.4172114584571496) internal successors, (11923), 8419 states have internal predecessors, (11923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:12,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8420 states to 8420 states and 11923 transitions. [2021-11-22 15:20:12,299 INFO L78 Accepts]: Start accepts. Automaton has 8420 states and 11923 transitions. Word has length 32 [2021-11-22 15:20:12,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:20:12,300 INFO L470 AbstractCegarLoop]: Abstraction has 8420 states and 11923 transitions. [2021-11-22 15:20:12,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:12,303 INFO L276 IsEmpty]: Start isEmpty. Operand 8420 states and 11923 transitions. [2021-11-22 15:20:12,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-22 15:20:12,306 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:20:12,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:20:12,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:20:12,308 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 15:20:12,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:20:12,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1071505594, now seen corresponding path program 1 times [2021-11-22 15:20:12,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:20:12,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734638548] [2021-11-22 15:20:12,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:20:12,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:20:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:20:12,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:20:12,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:20:12,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734638548] [2021-11-22 15:20:12,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734638548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:20:12,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:20:12,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:20:12,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321195795] [2021-11-22 15:20:12,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:20:12,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:20:12,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:20:12,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:20:12,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:20:12,552 INFO L87 Difference]: Start difference. First operand 8420 states and 11923 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:13,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:20:13,392 INFO L93 Difference]: Finished difference Result 24693 states and 35120 transitions. [2021-11-22 15:20:13,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:20:13,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2021-11-22 15:20:13,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:20:13,508 INFO L225 Difference]: With dead ends: 24693 [2021-11-22 15:20:13,509 INFO L226 Difference]: Without dead ends: 16276 [2021-11-22 15:20:13,527 INFO L932 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 [2021-11-22 15:20:13,531 INFO L933 BasicCegarLoop]: 22631 mSDtfsCounter, 11483 mSDsluCounter, 11218 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11483 SdHoareTripleChecker+Valid, 33849 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:20:13,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11483 Valid, 33849 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:20:13,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16276 states. [2021-11-22 15:20:14,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16276 to 16268. [2021-11-22 15:20:14,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16268 states, 16261 states have (on average 1.4261115552549044) internal successors, (23190), 16267 states have internal predecessors, (23190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:14,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16268 states to 16268 states and 23190 transitions. [2021-11-22 15:20:14,249 INFO L78 Accepts]: Start accepts. Automaton has 16268 states and 23190 transitions. Word has length 38 [2021-11-22 15:20:14,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:20:14,250 INFO L470 AbstractCegarLoop]: Abstraction has 16268 states and 23190 transitions. [2021-11-22 15:20:14,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:14,251 INFO L276 IsEmpty]: Start isEmpty. Operand 16268 states and 23190 transitions. [2021-11-22 15:20:14,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-22 15:20:14,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:20:14,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:20:14,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:20:14,257 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 15:20:14,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:20:14,258 INFO L85 PathProgramCache]: Analyzing trace with hash 740318977, now seen corresponding path program 1 times [2021-11-22 15:20:14,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:20:14,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935010071] [2021-11-22 15:20:14,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:20:14,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:20:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:20:14,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:20:14,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:20:14,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935010071] [2021-11-22 15:20:14,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935010071] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:20:14,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:20:14,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:20:14,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745572568] [2021-11-22 15:20:14,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:20:14,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:20:14,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:20:14,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:20:14,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:20:14,488 INFO L87 Difference]: Start difference. First operand 16268 states and 23190 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:16,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:20:16,797 INFO L93 Difference]: Finished difference Result 80540 states and 115010 transitions. [2021-11-22 15:20:16,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:20:16,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2021-11-22 15:20:16,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:20:17,043 INFO L225 Difference]: With dead ends: 80540 [2021-11-22 15:20:17,043 INFO L226 Difference]: Without dead ends: 64275 [2021-11-22 15:20:17,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:20:17,096 INFO L933 BasicCegarLoop]: 23083 mSDtfsCounter, 34143 mSDsluCounter, 34541 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34143 SdHoareTripleChecker+Valid, 57624 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:20:17,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34143 Valid, 57624 Invalid, 83 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:20:17,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64275 states. [2021-11-22 15:20:18,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64275 to 16272. [2021-11-22 15:20:18,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16272 states, 16265 states have (on average 1.426006762988011) internal successors, (23194), 16271 states have internal predecessors, (23194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:18,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16272 states to 16272 states and 23194 transitions. [2021-11-22 15:20:18,221 INFO L78 Accepts]: Start accepts. Automaton has 16272 states and 23194 transitions. Word has length 125 [2021-11-22 15:20:18,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:20:18,222 INFO L470 AbstractCegarLoop]: Abstraction has 16272 states and 23194 transitions. [2021-11-22 15:20:18,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:18,223 INFO L276 IsEmpty]: Start isEmpty. Operand 16272 states and 23194 transitions. [2021-11-22 15:20:18,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-22 15:20:18,226 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:20:18,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:20:18,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 15:20:18,227 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 15:20:18,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:20:18,228 INFO L85 PathProgramCache]: Analyzing trace with hash -164227898, now seen corresponding path program 1 times [2021-11-22 15:20:18,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:20:18,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119552685] [2021-11-22 15:20:18,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:20:18,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:20:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:20:18,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:20:18,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:20:18,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119552685] [2021-11-22 15:20:18,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119552685] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:20:18,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:20:18,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:20:18,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122420962] [2021-11-22 15:20:18,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:20:18,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:20:18,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:20:18,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:20:18,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:20:18,504 INFO L87 Difference]: Start difference. First operand 16272 states and 23194 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:19,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:20:19,199 INFO L93 Difference]: Finished difference Result 32557 states and 46417 transitions. [2021-11-22 15:20:19,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:20:19,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2021-11-22 15:20:19,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:20:19,252 INFO L225 Difference]: With dead ends: 32557 [2021-11-22 15:20:19,252 INFO L226 Difference]: Without dead ends: 16288 [2021-11-22 15:20:19,283 INFO L932 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 [2021-11-22 15:20:19,294 INFO L933 BasicCegarLoop]: 11525 mSDtfsCounter, 0 mSDsluCounter, 11483 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23008 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:20:19,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 23008 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 15:20:19,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16288 states. [2021-11-22 15:20:19,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16288 to 16288. [2021-11-22 15:20:19,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16288 states, 16281 states have (on average 1.4255881088385234) internal successors, (23210), 16287 states have internal predecessors, (23210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:20,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16288 states to 16288 states and 23210 transitions. [2021-11-22 15:20:20,014 INFO L78 Accepts]: Start accepts. Automaton has 16288 states and 23210 transitions. Word has length 128 [2021-11-22 15:20:20,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:20:20,015 INFO L470 AbstractCegarLoop]: Abstraction has 16288 states and 23210 transitions. [2021-11-22 15:20:20,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:20,017 INFO L276 IsEmpty]: Start isEmpty. Operand 16288 states and 23210 transitions. [2021-11-22 15:20:20,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-22 15:20:20,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:20:20,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:20:20,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 15:20:20,025 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 15:20:20,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:20:20,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1550914180, now seen corresponding path program 1 times [2021-11-22 15:20:20,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:20:20,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680519350] [2021-11-22 15:20:20,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:20:20,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:20:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:20:20,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:20:20,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:20:20,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680519350] [2021-11-22 15:20:20,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680519350] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:20:20,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:20:20,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:20:20,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242157226] [2021-11-22 15:20:20,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:20:20,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:20:20,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:20:20,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:20:20,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:20:20,327 INFO L87 Difference]: Start difference. First operand 16288 states and 23210 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:22,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:20:22,080 INFO L93 Difference]: Finished difference Result 80646 states and 115112 transitions. [2021-11-22 15:20:22,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:20:22,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2021-11-22 15:20:22,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:20:22,278 INFO L225 Difference]: With dead ends: 80646 [2021-11-22 15:20:22,279 INFO L226 Difference]: Without dead ends: 64361 [2021-11-22 15:20:22,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:20:22,336 INFO L933 BasicCegarLoop]: 11652 mSDtfsCounter, 45437 mSDsluCounter, 23225 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45437 SdHoareTripleChecker+Valid, 34877 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:20:22,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45437 Valid, 34877 Invalid, 67 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:20:22,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64361 states. [2021-11-22 15:20:23,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64361 to 16292. [2021-11-22 15:20:23,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16292 states, 16285 states have (on average 1.425483573840958) internal successors, (23214), 16291 states have internal predecessors, (23214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:23,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16292 states to 16292 states and 23214 transitions. [2021-11-22 15:20:23,453 INFO L78 Accepts]: Start accepts. Automaton has 16292 states and 23214 transitions. Word has length 128 [2021-11-22 15:20:23,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:20:23,454 INFO L470 AbstractCegarLoop]: Abstraction has 16292 states and 23214 transitions. [2021-11-22 15:20:23,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:23,455 INFO L276 IsEmpty]: Start isEmpty. Operand 16292 states and 23214 transitions. [2021-11-22 15:20:23,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-22 15:20:23,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:20:23,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:20:23,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 15:20:23,458 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 15:20:23,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:20:23,459 INFO L85 PathProgramCache]: Analyzing trace with hash -362164728, now seen corresponding path program 1 times [2021-11-22 15:20:23,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:20:23,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129874970] [2021-11-22 15:20:23,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:20:23,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:20:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:20:23,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:20:23,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:20:23,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129874970] [2021-11-22 15:20:23,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129874970] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:20:23,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:20:23,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:20:23,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307625615] [2021-11-22 15:20:23,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:20:23,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:20:23,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:20:23,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:20:23,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:20:23,737 INFO L87 Difference]: Start difference. First operand 16292 states and 23214 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:26,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:20:26,022 INFO L93 Difference]: Finished difference Result 80646 states and 115108 transitions. [2021-11-22 15:20:26,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:20:26,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2021-11-22 15:20:26,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:20:26,221 INFO L225 Difference]: With dead ends: 80646 [2021-11-22 15:20:26,221 INFO L226 Difference]: Without dead ends: 64357 [2021-11-22 15:20:26,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:20:26,266 INFO L933 BasicCegarLoop]: 23098 mSDtfsCounter, 34138 mSDsluCounter, 34569 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34138 SdHoareTripleChecker+Valid, 57667 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:20:26,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34138 Valid, 57667 Invalid, 84 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:20:26,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64357 states. [2021-11-22 15:20:27,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64357 to 16296. [2021-11-22 15:20:27,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16296 states, 16289 states have (on average 1.4253790901835595) internal successors, (23218), 16295 states have internal predecessors, (23218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:27,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16296 states to 16296 states and 23218 transitions. [2021-11-22 15:20:27,433 INFO L78 Accepts]: Start accepts. Automaton has 16296 states and 23218 transitions. Word has length 130 [2021-11-22 15:20:27,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:20:27,433 INFO L470 AbstractCegarLoop]: Abstraction has 16296 states and 23218 transitions. [2021-11-22 15:20:27,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:27,434 INFO L276 IsEmpty]: Start isEmpty. Operand 16296 states and 23218 transitions. [2021-11-22 15:20:27,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-22 15:20:27,436 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:20:27,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:20:27,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 15:20:27,437 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 15:20:27,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:20:27,438 INFO L85 PathProgramCache]: Analyzing trace with hash -2113943361, now seen corresponding path program 1 times [2021-11-22 15:20:27,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:20:27,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949935292] [2021-11-22 15:20:27,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:20:27,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:20:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:20:27,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:20:27,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:20:27,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949935292] [2021-11-22 15:20:27,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949935292] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:20:27,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:20:27,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:20:27,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749036667] [2021-11-22 15:20:27,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:20:27,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:20:27,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:20:27,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:20:27,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:20:27,707 INFO L87 Difference]: Start difference. First operand 16296 states and 23218 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:30,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:20:30,001 INFO L93 Difference]: Finished difference Result 80650 states and 115108 transitions. [2021-11-22 15:20:30,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:20:30,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2021-11-22 15:20:30,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:20:30,155 INFO L225 Difference]: With dead ends: 80650 [2021-11-22 15:20:30,155 INFO L226 Difference]: Without dead ends: 64357 [2021-11-22 15:20:30,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:20:30,189 INFO L933 BasicCegarLoop]: 23100 mSDtfsCounter, 34136 mSDsluCounter, 34569 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34136 SdHoareTripleChecker+Valid, 57669 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:20:30,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34136 Valid, 57669 Invalid, 88 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 15:20:30,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64357 states. [2021-11-22 15:20:31,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64357 to 16300. [2021-11-22 15:20:31,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16300 states, 16293 states have (on average 1.4252746578285154) internal successors, (23222), 16299 states have internal predecessors, (23222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:31,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16300 states to 16300 states and 23222 transitions. [2021-11-22 15:20:31,313 INFO L78 Accepts]: Start accepts. Automaton has 16300 states and 23222 transitions. Word has length 133 [2021-11-22 15:20:31,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:20:31,313 INFO L470 AbstractCegarLoop]: Abstraction has 16300 states and 23222 transitions. [2021-11-22 15:20:31,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:31,314 INFO L276 IsEmpty]: Start isEmpty. Operand 16300 states and 23222 transitions. [2021-11-22 15:20:31,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-22 15:20:31,316 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:20:31,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:20:31,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 15:20:31,316 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 15:20:31,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:20:31,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1592990942, now seen corresponding path program 1 times [2021-11-22 15:20:31,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:20:31,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435051109] [2021-11-22 15:20:31,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:20:31,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:20:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:20:31,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:20:31,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:20:31,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435051109] [2021-11-22 15:20:31,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435051109] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:20:31,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:20:31,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:20:31,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257186399] [2021-11-22 15:20:31,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:20:31,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:20:31,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:20:31,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:20:31,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:20:31,544 INFO L87 Difference]: Start difference. First operand 16300 states and 23222 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:34,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:20:34,039 INFO L93 Difference]: Finished difference Result 80658 states and 115112 transitions. [2021-11-22 15:20:34,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:20:34,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-11-22 15:20:34,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:20:34,192 INFO L225 Difference]: With dead ends: 80658 [2021-11-22 15:20:34,192 INFO L226 Difference]: Without dead ends: 64361 [2021-11-22 15:20:34,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:20:34,236 INFO L933 BasicCegarLoop]: 11748 mSDtfsCounter, 45412 mSDsluCounter, 23310 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45412 SdHoareTripleChecker+Valid, 35058 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:20:34,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45412 Valid, 35058 Invalid, 80 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:20:34,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64361 states. [2021-11-22 15:20:35,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64361 to 16304. [2021-11-22 15:20:35,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16304 states, 16297 states have (on average 1.4251702767380499) internal successors, (23226), 16303 states have internal predecessors, (23226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:35,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16304 states to 16304 states and 23226 transitions. [2021-11-22 15:20:35,437 INFO L78 Accepts]: Start accepts. Automaton has 16304 states and 23226 transitions. Word has length 136 [2021-11-22 15:20:35,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:20:35,437 INFO L470 AbstractCegarLoop]: Abstraction has 16304 states and 23226 transitions. [2021-11-22 15:20:35,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:35,438 INFO L276 IsEmpty]: Start isEmpty. Operand 16304 states and 23226 transitions. [2021-11-22 15:20:35,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-22 15:20:35,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:20:35,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:20:35,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 15:20:35,441 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 15:20:35,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:20:35,442 INFO L85 PathProgramCache]: Analyzing trace with hash 887988058, now seen corresponding path program 1 times [2021-11-22 15:20:35,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:20:35,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073764833] [2021-11-22 15:20:35,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:20:35,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:20:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:20:35,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:20:35,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:20:35,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073764833] [2021-11-22 15:20:35,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073764833] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:20:35,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:20:35,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:20:35,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860103083] [2021-11-22 15:20:35,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:20:35,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:20:35,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:20:35,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:20:35,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:20:35,707 INFO L87 Difference]: Start difference. First operand 16304 states and 23226 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:38,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:20:38,407 INFO L93 Difference]: Finished difference Result 80642 states and 115092 transitions. [2021-11-22 15:20:38,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:20:38,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-11-22 15:20:38,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:20:38,537 INFO L225 Difference]: With dead ends: 80642 [2021-11-22 15:20:38,537 INFO L226 Difference]: Without dead ends: 64341 [2021-11-22 15:20:38,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:20:38,569 INFO L933 BasicCegarLoop]: 23098 mSDtfsCounter, 34130 mSDsluCounter, 34563 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34130 SdHoareTripleChecker+Valid, 57661 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:20:38,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34130 Valid, 57661 Invalid, 88 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:20:38,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64341 states. [2021-11-22 15:20:39,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64341 to 16308. [2021-11-22 15:20:39,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16308 states, 16301 states have (on average 1.425065946874425) internal successors, (23230), 16307 states have internal predecessors, (23230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:39,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16308 states to 16308 states and 23230 transitions. [2021-11-22 15:20:39,803 INFO L78 Accepts]: Start accepts. Automaton has 16308 states and 23230 transitions. Word has length 138 [2021-11-22 15:20:39,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:20:39,803 INFO L470 AbstractCegarLoop]: Abstraction has 16308 states and 23230 transitions. [2021-11-22 15:20:39,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:39,804 INFO L276 IsEmpty]: Start isEmpty. Operand 16308 states and 23230 transitions. [2021-11-22 15:20:39,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-22 15:20:39,805 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:20:39,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:20:39,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-22 15:20:39,806 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 15:20:39,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:20:39,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1451889819, now seen corresponding path program 1 times [2021-11-22 15:20:39,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:20:39,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108670074] [2021-11-22 15:20:39,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:20:39,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:20:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:20:40,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:20:40,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:20:40,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108670074] [2021-11-22 15:20:40,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108670074] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:20:40,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:20:40,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:20:40,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873204862] [2021-11-22 15:20:40,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:20:40,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:20:40,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:20:40,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:20:40,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:20:40,078 INFO L87 Difference]: Start difference. First operand 16308 states and 23230 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:43,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:20:43,570 INFO L93 Difference]: Finished difference Result 80545 states and 114976 transitions. [2021-11-22 15:20:43,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:20:43,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2021-11-22 15:20:43,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:20:43,691 INFO L225 Difference]: With dead ends: 80545 [2021-11-22 15:20:43,691 INFO L226 Difference]: Without dead ends: 64240 [2021-11-22 15:20:43,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:20:43,718 INFO L933 BasicCegarLoop]: 11815 mSDtfsCounter, 45324 mSDsluCounter, 45619 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45324 SdHoareTripleChecker+Valid, 57434 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:20:43,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45324 Valid, 57434 Invalid, 88 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:20:43,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64240 states. [2021-11-22 15:20:44,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64240 to 16312. [2021-11-22 15:20:44,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16312 states, 16305 states have (on average 1.4249616681999386) internal successors, (23234), 16311 states have internal predecessors, (23234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:44,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16312 states to 16312 states and 23234 transitions. [2021-11-22 15:20:44,989 INFO L78 Accepts]: Start accepts. Automaton has 16312 states and 23234 transitions. Word has length 141 [2021-11-22 15:20:44,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:20:44,990 INFO L470 AbstractCegarLoop]: Abstraction has 16312 states and 23234 transitions. [2021-11-22 15:20:44,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:44,990 INFO L276 IsEmpty]: Start isEmpty. Operand 16312 states and 23234 transitions. [2021-11-22 15:20:44,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-22 15:20:44,991 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:20:44,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:20:44,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-22 15:20:44,992 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 15:20:44,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:20:44,992 INFO L85 PathProgramCache]: Analyzing trace with hash 2141968993, now seen corresponding path program 1 times [2021-11-22 15:20:44,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:20:44,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80151932] [2021-11-22 15:20:44,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:20:44,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:20:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:20:45,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:20:45,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:20:45,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80151932] [2021-11-22 15:20:45,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80151932] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:20:45,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:20:45,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 15:20:45,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448952512] [2021-11-22 15:20:45,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:20:45,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 15:20:45,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:20:45,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 15:20:45,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:20:45,258 INFO L87 Difference]: Start difference. First operand 16312 states and 23234 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:48,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:20:48,979 INFO L93 Difference]: Finished difference Result 79930 states and 114308 transitions. [2021-11-22 15:20:48,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 15:20:48,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2021-11-22 15:20:48,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:20:49,088 INFO L225 Difference]: With dead ends: 79930 [2021-11-22 15:20:49,088 INFO L226 Difference]: Without dead ends: 63621 [2021-11-22 15:20:49,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:20:49,112 INFO L933 BasicCegarLoop]: 11612 mSDtfsCounter, 67440 mSDsluCounter, 68246 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67440 SdHoareTripleChecker+Valid, 79858 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:20:49,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67440 Valid, 79858 Invalid, 33 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:20:49,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63621 states. [2021-11-22 15:20:50,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63621 to 16318. [2021-11-22 15:20:50,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16318 states, 16311 states have (on average 1.4248053460854637) internal successors, (23240), 16317 states have internal predecessors, (23240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:50,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16318 states to 16318 states and 23240 transitions. [2021-11-22 15:20:50,252 INFO L78 Accepts]: Start accepts. Automaton has 16318 states and 23240 transitions. Word has length 143 [2021-11-22 15:20:50,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:20:50,252 INFO L470 AbstractCegarLoop]: Abstraction has 16318 states and 23240 transitions. [2021-11-22 15:20:50,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:20:50,253 INFO L276 IsEmpty]: Start isEmpty. Operand 16318 states and 23240 transitions. [2021-11-22 15:20:50,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-22 15:20:50,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:20:50,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:20:50,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-22 15:20:50,254 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 15:20:50,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:20:50,255 INFO L85 PathProgramCache]: Analyzing trace with hash -515805144, now seen corresponding path program 1 times [2021-11-22 15:20:50,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:20:50,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9175155] [2021-11-22 15:20:50,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:20:50,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:20:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:20:50,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:20:50,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:20:50,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9175155] [2021-11-22 15:20:50,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9175155] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:20:50,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:20:50,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:20:50,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434459234] [2021-11-22 15:20:50,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:20:50,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:20:50,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:20:50,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:20:50,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:20:50,747 INFO L87 Difference]: Start difference. First operand 16318 states and 23240 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)