./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg --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 32bit --witnessprinter.graph.data.programhash 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg --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 32bit --witnessprinter.graph.data.programhash 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:45:54,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:45:54,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:45:54,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:45:54,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:45:54,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:45:54,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:45:54,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:45:54,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:45:54,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:45:54,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:45:54,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:45:54,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:45:54,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:45:54,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:45:54,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:45:54,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:45:54,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:45:54,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:45:54,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:45:54,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:45:54,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:45:54,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:45:54,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:45:54,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:45:54,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:45:54,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:45:54,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:45:54,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:45:54,928 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:45:54,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:45:54,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:45:54,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:45:54,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:45:54,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:45:54,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:45:54,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:45:54,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:45:54,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:45:54,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:45:54,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:45:54,941 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:45:54,986 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:45:54,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:45:54,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:45:54,987 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:45:54,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:45:54,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:45:54,988 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:45:54,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:45:54,989 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:45:54,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:45:54,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:45:54,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:45:54,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:45:54,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:45:54,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:45:54,990 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:45:54,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:45:54,990 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:45:54,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:45:54,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:45:54,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:45:54,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:45:54,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:45:54,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:45:54,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:45:54,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:45:54,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:45:54,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:45:54,997 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:45:54,998 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:45:54,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:45:54,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:45:54,998 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_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de [2021-10-28 08:45:55,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:45:55,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:45:55,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:45:55,329 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:45:55,330 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:45:55,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-10-28 08:45:55,405 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/data/79464c951/f08017b613e44935a3b790dffcee2604/FLAG9e9460a1b [2021-10-28 08:45:56,219 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:45:56,222 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-10-28 08:45:56,275 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/data/79464c951/f08017b613e44935a3b790dffcee2604/FLAG9e9460a1b [2021-10-28 08:45:56,765 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/data/79464c951/f08017b613e44935a3b790dffcee2604 [2021-10-28 08:45:56,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:45:56,769 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:45:56,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:45:56,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:45:56,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:45:56,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:45:56" (1/1) ... [2021-10-28 08:45:56,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@747c36ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:56, skipping insertion in model container [2021-10-28 08:45:56,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:45:56" (1/1) ... [2021-10-28 08:45:56,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:45:56,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:45:57,135 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2021-10-28 08:45:58,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:45:59,016 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:45:59,042 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2021-10-28 08:45:59,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:45:59,386 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:45:59,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:59 WrapperNode [2021-10-28 08:45:59,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:45:59,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:45:59,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:45:59,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:45:59,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:59" (1/1) ... [2021-10-28 08:45:59,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:59" (1/1) ... [2021-10-28 08:45:59,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:45:59,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:45:59,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:45:59,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:45:59,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:59" (1/1) ... [2021-10-28 08:45:59,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:59" (1/1) ... [2021-10-28 08:45:59,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:59" (1/1) ... [2021-10-28 08:45:59,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:59" (1/1) ... [2021-10-28 08:45:59,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:59" (1/1) ... [2021-10-28 08:45:59,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:59" (1/1) ... [2021-10-28 08:45:59,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:59" (1/1) ... [2021-10-28 08:45:59,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:45:59,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:45:59,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:45:59,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:45:59,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:59" (1/1) ... [2021-10-28 08:45:59,738 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:45:59,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:59,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:45:59,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:45:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:45:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-10-28 08:45:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 08:45:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 08:45:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 08:45:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:45:59,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:45:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 08:45:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:45:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 08:45:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 08:45:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 08:45:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:46:04,321 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:46:04,321 INFO L299 CfgBuilder]: Removed 515 assume(true) statements. [2021-10-28 08:46:04,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:46:04 BoogieIcfgContainer [2021-10-28 08:46:04,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:46:04,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:46:04,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:46:04,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:46:04,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:45:56" (1/3) ... [2021-10-28 08:46:04,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c732c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:46:04, skipping insertion in model container [2021-10-28 08:46:04,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:45:59" (2/3) ... [2021-10-28 08:46:04,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c732c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:46:04, skipping insertion in model container [2021-10-28 08:46:04,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:46:04" (3/3) ... [2021-10-28 08:46:04,338 INFO L111 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw.i [2021-10-28 08:46:04,345 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:46:04,345 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-10-28 08:46:04,429 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:46:04,439 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 [2021-10-28 08:46:04,439 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-10-28 08:46:04,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 393 states, 383 states have (on average 1.328981723237598) internal successors, (509), 392 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:04,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 08:46:04,495 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:04,496 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:04,496 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-28 08:46:04,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:04,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1448150405, now seen corresponding path program 1 times [2021-10-28 08:46:04,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:04,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144436234] [2021-10-28 08:46:04,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:04,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:05,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:05,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:05,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144436234] [2021-10-28 08:46:05,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144436234] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:05,020 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:05,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:46:05,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400539979] [2021-10-28 08:46:05,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 08:46:05,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:05,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 08:46:05,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:46:05,057 INFO L87 Difference]: Start difference. First operand has 393 states, 383 states have (on average 1.328981723237598) internal successors, (509), 392 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:05,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:05,140 INFO L93 Difference]: Finished difference Result 781 states and 1011 transitions. [2021-10-28 08:46:05,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 08:46:05,142 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-10-28 08:46:05,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:05,159 INFO L225 Difference]: With dead ends: 781 [2021-10-28 08:46:05,159 INFO L226 Difference]: Without dead ends: 376 [2021-10-28 08:46:05,165 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:46:05,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-10-28 08:46:05,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2021-10-28 08:46:05,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 367 states have (on average 1.2833787465940054) internal successors, (471), 375 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:05,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 471 transitions. [2021-10-28 08:46:05,234 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 471 transitions. Word has length 12 [2021-10-28 08:46:05,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:05,235 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 471 transitions. [2021-10-28 08:46:05,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:05,236 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 471 transitions. [2021-10-28 08:46:05,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 08:46:05,236 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:05,237 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:05,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:46:05,238 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-28 08:46:05,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:05,238 INFO L85 PathProgramCache]: Analyzing trace with hash 806641781, now seen corresponding path program 1 times [2021-10-28 08:46:05,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:05,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280614773] [2021-10-28 08:46:05,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:05,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:05,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:05,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:05,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280614773] [2021-10-28 08:46:05,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280614773] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:05,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:05,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:46:05,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56985370] [2021-10-28 08:46:05,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:46:05,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:05,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:46:05,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:05,514 INFO L87 Difference]: Start difference. First operand 376 states and 471 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:05,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:05,606 INFO L93 Difference]: Finished difference Result 751 states and 942 transitions. [2021-10-28 08:46:05,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:46:05,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-10-28 08:46:05,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:05,615 INFO L225 Difference]: With dead ends: 751 [2021-10-28 08:46:05,615 INFO L226 Difference]: Without dead ends: 380 [2021-10-28 08:46:05,621 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:05,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2021-10-28 08:46:05,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 378. [2021-10-28 08:46:05,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 369 states have (on average 1.2818428184281843) internal successors, (473), 377 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:05,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 473 transitions. [2021-10-28 08:46:05,666 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 473 transitions. Word has length 12 [2021-10-28 08:46:05,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:05,668 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 473 transitions. [2021-10-28 08:46:05,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:05,668 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 473 transitions. [2021-10-28 08:46:05,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 08:46:05,669 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:05,669 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:05,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:46:05,671 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-28 08:46:05,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:05,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1115618639, now seen corresponding path program 1 times [2021-10-28 08:46:05,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:05,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941380926] [2021-10-28 08:46:05,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:05,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:05,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:46:05,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:05,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941380926] [2021-10-28 08:46:05,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941380926] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:05,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920653830] [2021-10-28 08:46:05,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:05,834 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:05,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:05,841 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:05,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 08:46:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:06,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 08:46:06,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:06,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:46:06,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920653830] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:06,352 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:06,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-28 08:46:06,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606537510] [2021-10-28 08:46:06,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:46:06,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:06,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:46:06,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:46:06,356 INFO L87 Difference]: Start difference. First operand 378 states and 473 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:06,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:06,415 INFO L93 Difference]: Finished difference Result 754 states and 944 transitions. [2021-10-28 08:46:06,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:46:06,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 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 16 [2021-10-28 08:46:06,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:06,419 INFO L225 Difference]: With dead ends: 754 [2021-10-28 08:46:06,419 INFO L226 Difference]: Without dead ends: 382 [2021-10-28 08:46:06,421 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:46:06,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-10-28 08:46:06,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 380. [2021-10-28 08:46:06,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 371 states have (on average 1.280323450134771) internal successors, (475), 379 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:06,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 475 transitions. [2021-10-28 08:46:06,453 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 475 transitions. Word has length 16 [2021-10-28 08:46:06,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:06,454 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 475 transitions. [2021-10-28 08:46:06,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:06,455 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 475 transitions. [2021-10-28 08:46:06,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 08:46:06,456 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:06,456 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:06,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:06,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:06,675 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-28 08:46:06,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:06,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1218920273, now seen corresponding path program 2 times [2021-10-28 08:46:06,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:06,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157548359] [2021-10-28 08:46:06,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:06,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:06,840 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:46:06,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:06,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157548359] [2021-10-28 08:46:06,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157548359] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:06,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357389829] [2021-10-28 08:46:06,842 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:46:06,842 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:06,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:06,843 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:06,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 08:46:09,416 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:46:09,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:46:09,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:46:09,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:09,510 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:46:09,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357389829] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:09,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:09,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-28 08:46:09,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642238313] [2021-10-28 08:46:09,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:46:09,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:09,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:46:09,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:46:09,514 INFO L87 Difference]: Start difference. First operand 380 states and 475 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:09,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:09,592 INFO L93 Difference]: Finished difference Result 756 states and 946 transitions. [2021-10-28 08:46:09,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:46:09,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 18 [2021-10-28 08:46:09,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:09,597 INFO L225 Difference]: With dead ends: 756 [2021-10-28 08:46:09,597 INFO L226 Difference]: Without dead ends: 384 [2021-10-28 08:46:09,598 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:46:09,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-10-28 08:46:09,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 382. [2021-10-28 08:46:09,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 373 states have (on average 1.2788203753351206) internal successors, (477), 381 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:09,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 477 transitions. [2021-10-28 08:46:09,614 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 477 transitions. Word has length 18 [2021-10-28 08:46:09,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:09,615 INFO L470 AbstractCegarLoop]: Abstraction has 382 states and 477 transitions. [2021-10-28 08:46:09,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:09,615 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 477 transitions. [2021-10-28 08:46:09,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 08:46:09,616 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:09,616 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:09,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-28 08:46:09,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:09,845 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-28 08:46:09,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:09,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1707542739, now seen corresponding path program 3 times [2021-10-28 08:46:09,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:09,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348068361] [2021-10-28 08:46:09,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:09,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:46:10,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:10,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348068361] [2021-10-28 08:46:10,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348068361] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:10,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744152344] [2021-10-28 08:46:10,072 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:46:10,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:10,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:10,074 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:10,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 08:46:18,360 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-28 08:46:18,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:46:18,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:46:18,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:18,525 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:46:18,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744152344] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:18,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:18,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-28 08:46:18,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813787742] [2021-10-28 08:46:18,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:46:18,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:18,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:46:18,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:46:18,536 INFO L87 Difference]: Start difference. First operand 382 states and 477 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:18,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:18,669 INFO L93 Difference]: Finished difference Result 758 states and 948 transitions. [2021-10-28 08:46:18,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:46:18,670 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 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 20 [2021-10-28 08:46:18,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:18,673 INFO L225 Difference]: With dead ends: 758 [2021-10-28 08:46:18,674 INFO L226 Difference]: Without dead ends: 386 [2021-10-28 08:46:18,675 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:46:18,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2021-10-28 08:46:18,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 384. [2021-10-28 08:46:18,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 375 states have (on average 1.2773333333333334) internal successors, (479), 383 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:18,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 479 transitions. [2021-10-28 08:46:18,693 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 479 transitions. Word has length 20 [2021-10-28 08:46:18,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:18,694 INFO L470 AbstractCegarLoop]: Abstraction has 384 states and 479 transitions. [2021-10-28 08:46:18,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:18,694 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 479 transitions. [2021-10-28 08:46:18,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 08:46:18,696 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:18,696 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:18,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:18,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:18,897 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-28 08:46:18,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:18,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1172669995, now seen corresponding path program 4 times [2021-10-28 08:46:18,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:18,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502264604] [2021-10-28 08:46:18,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:18,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:19,104 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:46:19,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:19,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502264604] [2021-10-28 08:46:19,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502264604] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:19,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48692388] [2021-10-28 08:46:19,105 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:46:19,106 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:19,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:19,109 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:19,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 08:46:19,308 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:46:19,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:46:19,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:46:19,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:19,402 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:46:19,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48692388] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:19,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:19,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-28 08:46:19,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197478382] [2021-10-28 08:46:19,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:46:19,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:19,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:46:19,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:46:19,405 INFO L87 Difference]: Start difference. First operand 384 states and 479 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:19,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:19,480 INFO L93 Difference]: Finished difference Result 760 states and 950 transitions. [2021-10-28 08:46:19,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:46:19,481 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 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 22 [2021-10-28 08:46:19,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:19,483 INFO L225 Difference]: With dead ends: 760 [2021-10-28 08:46:19,483 INFO L226 Difference]: Without dead ends: 388 [2021-10-28 08:46:19,484 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:46:19,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-10-28 08:46:19,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 386. [2021-10-28 08:46:19,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 377 states have (on average 1.2758620689655173) internal successors, (481), 385 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:19,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 481 transitions. [2021-10-28 08:46:19,498 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 481 transitions. Word has length 22 [2021-10-28 08:46:19,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:19,498 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 481 transitions. [2021-10-28 08:46:19,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:19,498 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 481 transitions. [2021-10-28 08:46:19,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 08:46:19,499 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:19,500 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:19,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:19,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-28 08:46:19,725 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-28 08:46:19,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:19,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1196798551, now seen corresponding path program 5 times [2021-10-28 08:46:19,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:19,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860692490] [2021-10-28 08:46:19,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:19,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:19,889 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:46:19,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:19,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860692490] [2021-10-28 08:46:19,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860692490] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:19,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19518831] [2021-10-28 08:46:19,890 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:46:19,890 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:19,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:19,891 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:19,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 08:46:20,279 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-28 08:46:20,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:46:20,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:46:20,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:20,396 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:46:20,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19518831] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:20,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:20,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-10-28 08:46:20,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627490615] [2021-10-28 08:46:20,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:46:20,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:20,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:46:20,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:46:20,399 INFO L87 Difference]: Start difference. First operand 386 states and 481 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:20,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:20,498 INFO L93 Difference]: Finished difference Result 762 states and 952 transitions. [2021-10-28 08:46:20,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:46:20,498 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 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 24 [2021-10-28 08:46:20,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:20,501 INFO L225 Difference]: With dead ends: 762 [2021-10-28 08:46:20,502 INFO L226 Difference]: Without dead ends: 390 [2021-10-28 08:46:20,503 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:46:20,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-10-28 08:46:20,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 388. [2021-10-28 08:46:20,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 379 states have (on average 1.274406332453826) internal successors, (483), 387 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:20,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 483 transitions. [2021-10-28 08:46:20,517 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 483 transitions. Word has length 24 [2021-10-28 08:46:20,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:20,517 INFO L470 AbstractCegarLoop]: Abstraction has 388 states and 483 transitions. [2021-10-28 08:46:20,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:20,518 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 483 transitions. [2021-10-28 08:46:20,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 08:46:20,519 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:20,519 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:20,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:20,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:20,733 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-28 08:46:20,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:20,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1923404377, now seen corresponding path program 6 times [2021-10-28 08:46:20,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:20,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7050690] [2021-10-28 08:46:20,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:20,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:21,078 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:46:21,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:21,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7050690] [2021-10-28 08:46:21,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7050690] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:21,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210459816] [2021-10-28 08:46:21,080 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:46:21,080 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:21,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:21,081 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:21,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 08:46:39,318 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-10-28 08:46:39,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:46:39,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:46:39,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:39,520 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:46:39,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210459816] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:39,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:39,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-10-28 08:46:39,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878982125] [2021-10-28 08:46:39,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 08:46:39,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:39,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 08:46:39,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:46:39,523 INFO L87 Difference]: Start difference. First operand 388 states and 483 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:39,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:39,612 INFO L93 Difference]: Finished difference Result 764 states and 954 transitions. [2021-10-28 08:46:39,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 08:46:39,613 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 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 26 [2021-10-28 08:46:39,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:39,616 INFO L225 Difference]: With dead ends: 764 [2021-10-28 08:46:39,616 INFO L226 Difference]: Without dead ends: 392 [2021-10-28 08:46:39,617 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:46:39,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2021-10-28 08:46:39,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 390. [2021-10-28 08:46:39,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 381 states have (on average 1.272965879265092) internal successors, (485), 389 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:39,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 485 transitions. [2021-10-28 08:46:39,632 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 485 transitions. Word has length 26 [2021-10-28 08:46:39,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:39,632 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 485 transitions. [2021-10-28 08:46:39,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:39,633 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 485 transitions. [2021-10-28 08:46:39,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 08:46:39,634 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:39,634 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:39,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:39,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:39,849 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-28 08:46:39,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:39,849 INFO L85 PathProgramCache]: Analyzing trace with hash -111933915, now seen corresponding path program 7 times [2021-10-28 08:46:39,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:39,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036885986] [2021-10-28 08:46:39,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:39,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:40,053 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:46:40,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:40,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036885986] [2021-10-28 08:46:40,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036885986] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:40,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420292241] [2021-10-28 08:46:40,053 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:46:40,054 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:40,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:40,055 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:40,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 08:46:40,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:40,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 08:46:40,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:40,567 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:46:40,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420292241] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:40,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:40,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-10-28 08:46:40,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723933453] [2021-10-28 08:46:40,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 08:46:40,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:40,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 08:46:40,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:46:40,571 INFO L87 Difference]: Start difference. First operand 390 states and 485 transitions. Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:40,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:40,690 INFO L93 Difference]: Finished difference Result 766 states and 956 transitions. [2021-10-28 08:46:40,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 08:46:40,690 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 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 28 [2021-10-28 08:46:40,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:40,694 INFO L225 Difference]: With dead ends: 766 [2021-10-28 08:46:40,694 INFO L226 Difference]: Without dead ends: 394 [2021-10-28 08:46:40,695 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:46:40,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-10-28 08:46:40,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 392. [2021-10-28 08:46:40,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 383 states have (on average 1.2715404699738904) internal successors, (487), 391 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:40,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 487 transitions. [2021-10-28 08:46:40,709 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 487 transitions. Word has length 28 [2021-10-28 08:46:40,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:40,710 INFO L470 AbstractCegarLoop]: Abstraction has 392 states and 487 transitions. [2021-10-28 08:46:40,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:40,711 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 487 transitions. [2021-10-28 08:46:40,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 08:46:40,712 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:40,712 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:40,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:40,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:40,926 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-28 08:46:40,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:40,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1249425187, now seen corresponding path program 8 times [2021-10-28 08:46:40,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:40,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209257356] [2021-10-28 08:46:40,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:40,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:41,168 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:46:41,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:41,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209257356] [2021-10-28 08:46:41,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209257356] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:41,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659200402] [2021-10-28 08:46:41,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:46:41,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:41,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:41,171 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:41,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 08:46:43,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:46:43,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:46:43,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:46:43,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:43,667 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:46:43,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659200402] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:43,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:43,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-10-28 08:46:43,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465139356] [2021-10-28 08:46:43,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 08:46:43,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:43,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 08:46:43,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:46:43,671 INFO L87 Difference]: Start difference. First operand 392 states and 487 transitions. Second operand has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:43,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:43,766 INFO L93 Difference]: Finished difference Result 768 states and 958 transitions. [2021-10-28 08:46:43,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:46:43,767 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 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 30 [2021-10-28 08:46:43,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:43,770 INFO L225 Difference]: With dead ends: 768 [2021-10-28 08:46:43,770 INFO L226 Difference]: Without dead ends: 396 [2021-10-28 08:46:43,771 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:46:43,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-10-28 08:46:43,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 394. [2021-10-28 08:46:43,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 385 states have (on average 1.2701298701298702) internal successors, (489), 393 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:43,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 489 transitions. [2021-10-28 08:46:43,785 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 489 transitions. Word has length 30 [2021-10-28 08:46:43,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:43,785 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 489 transitions. [2021-10-28 08:46:43,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:43,786 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 489 transitions. [2021-10-28 08:46:43,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 08:46:43,787 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:43,787 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:43,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:44,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-28 08:46:44,004 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-28 08:46:44,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:44,005 INFO L85 PathProgramCache]: Analyzing trace with hash -449503071, now seen corresponding path program 9 times [2021-10-28 08:46:44,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:44,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804619151] [2021-10-28 08:46:44,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:44,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:44,488 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:46:44,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:44,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804619151] [2021-10-28 08:46:44,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804619151] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:44,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374942709] [2021-10-28 08:46:44,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:46:44,489 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:44,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:44,495 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:44,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 08:47:17,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-10-28 08:47:17,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:47:17,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 08:47:17,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:47:18,193 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:47:18,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374942709] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:47:18,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:47:18,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-10-28 08:47:18,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838148094] [2021-10-28 08:47:18,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 08:47:18,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:47:18,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 08:47:18,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:47:18,196 INFO L87 Difference]: Start difference. First operand 394 states and 489 transitions. Second operand has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:18,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:18,347 INFO L93 Difference]: Finished difference Result 769 states and 959 transitions. [2021-10-28 08:47:18,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 08:47:18,347 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 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 [2021-10-28 08:47:18,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:18,351 INFO L225 Difference]: With dead ends: 769 [2021-10-28 08:47:18,351 INFO L226 Difference]: Without dead ends: 397 [2021-10-28 08:47:18,352 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:47:18,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2021-10-28 08:47:18,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 396. [2021-10-28 08:47:18,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 387 states have (on average 1.268733850129199) internal successors, (491), 395 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:18,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 491 transitions. [2021-10-28 08:47:18,391 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 491 transitions. Word has length 32 [2021-10-28 08:47:18,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:18,392 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 491 transitions. [2021-10-28 08:47:18,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:18,393 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 491 transitions. [2021-10-28 08:47:18,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 08:47:18,399 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:18,399 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:47:18,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:47:18,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-28 08:47:18,616 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-28 08:47:18,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:18,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1031986529, now seen corresponding path program 10 times [2021-10-28 08:47:18,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:47:18,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185788347] [2021-10-28 08:47:18,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:18,617 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:47:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:47:19,980 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:47:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:47:20,866 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:47:20,866 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:47:20,867 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:47:20,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:47:20,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:47:20,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:47:20,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:47:20,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:47:20,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:47:20,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:47:20,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:47:20,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 08:47:20,876 INFO L731 BasicCegarLoop]: Path program histogram: [10, 1, 1] [2021-10-28 08:47:20,880 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:47:21,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:47:21 BoogieIcfgContainer [2021-10-28 08:47:21,085 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:47:21,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:47:21,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:47:21,086 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:47:21,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:46:04" (3/4) ... [2021-10-28 08:47:21,090 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:47:21,090 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:47:21,092 INFO L168 Benchmark]: Toolchain (without parser) took 84321.34 ms. Allocated memory was 94.4 MB in the beginning and 308.3 MB in the end (delta: 213.9 MB). Free memory was 50.2 MB in the beginning and 107.3 MB in the end (delta: -57.1 MB). Peak memory consumption was 156.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:21,092 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory is still 71.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:47:21,093 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2616.64 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 50.0 MB in the beginning and 80.6 MB in the end (delta: -30.6 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:21,093 INFO L168 Benchmark]: Boogie Procedure Inliner took 206.16 ms. Allocated memory is still 123.7 MB. Free memory was 80.6 MB in the beginning and 67.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:21,093 INFO L168 Benchmark]: Boogie Preprocessor took 130.32 ms. Allocated memory is still 123.7 MB. Free memory was 67.2 MB in the beginning and 58.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:21,094 INFO L168 Benchmark]: RCFGBuilder took 4599.26 ms. Allocated memory was 123.7 MB in the beginning and 211.8 MB in the end (delta: 88.1 MB). Free memory was 57.6 MB in the beginning and 111.4 MB in the end (delta: -53.8 MB). Peak memory consumption was 75.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:21,094 INFO L168 Benchmark]: TraceAbstraction took 76757.48 ms. Allocated memory was 211.8 MB in the beginning and 308.3 MB in the end (delta: 96.5 MB). Free memory was 110.4 MB in the beginning and 108.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 98.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:47:21,095 INFO L168 Benchmark]: Witness Printer took 4.73 ms. Allocated memory is still 308.3 MB. Free memory was 108.4 MB in the beginning and 107.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:47:21,097 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory is still 71.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2616.64 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 50.0 MB in the beginning and 80.6 MB in the end (delta: -30.6 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 206.16 ms. Allocated memory is still 123.7 MB. Free memory was 80.6 MB in the beginning and 67.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 130.32 ms. Allocated memory is still 123.7 MB. Free memory was 67.2 MB in the beginning and 58.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 4599.26 ms. Allocated memory was 123.7 MB in the beginning and 211.8 MB in the end (delta: 88.1 MB). Free memory was 57.6 MB in the beginning and 111.4 MB in the end (delta: -53.8 MB). Peak memory consumption was 75.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 76757.48 ms. Allocated memory was 211.8 MB in the beginning and 308.3 MB in the end (delta: 96.5 MB). Free memory was 110.4 MB in the beginning and 108.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 98.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.73 ms. Allocated memory is still 308.3 MB. Free memory was 108.4 MB in the beginning and 107.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 1484. Possible FailurePath: [L20] int current_execution_context; [L31] int (* _ddv_module_init)(void); [L32] void (* _ddv_module_exit)(void); [L232] unsigned long jiffies; [L1474] char _ddv_module_author[] = "Fernando Fuganti "; [L1475] char _ddv_module_description[] = "MachZ ZF-Logic Watchdog driver"; [L1476] char _ddv_module_license[] = "GPL"; [L1478] static int nowayout = 0; [L1479] char _ddv_module_param_nowayout [] = "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)"; [L1483-L1487] static struct watchdog_info zf_info = { .options = 0x8000 | 0x0100, .firmware_version = 1, .identity = "ZF-Logic watchdog", }; [L1488] static int action = 0; [L1489] char _ddv_module_param_action [] = "after watchdog resets, generate: 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI"; [L1491] static int zf_action = 0x0800; [L1492] static unsigned long zf_is_open; [L1493] static char zf_expect_close; [L1494] static spinlock_t zf_lock; [L1495] static spinlock_t zf_port_lock; [L1496] static struct timer_list zf_timer; [L1497] static unsigned long next_heartbeat = 0; [L1743-L1750] static const struct file_operations zf_fops = { .owner = ((struct module *) 0), .llseek = no_llseek, .write = zf_write, .ioctl = zf_ioctl, .open = zf_open, .release = zf_close, }; [L1752-L1756] static struct miscdevice zf_miscdev = { .minor = 130, .name = "watchdog", .fops = (struct file_operations *)&zf_fops, }; [L1763-L1765] static struct notifier_block zf_notifier = { .notifier_call = zf_notify_sys, }; [L1845] int (* _ddv_tmp_init)(void) = zf_init; [L1846] void (* _ddv_tmp_exit)(void) = zf_exit; [L1897] struct cdev fixed_cdev[1]; [L1898] int fixed_cdev_used = 0; [L1900] short number_cdev_registered = 0; [L1911] struct ddv_cdev cdev_registered[1]; [L2448] short number_genhd_registered = 0; [L2449] short number_fixed_genhd_used = 0; [L2460] struct gendisk fixed_gendisk[10]; [L2461] struct ddv_genhd genhd_registered[10]; [L2597] struct ddv_pci_driver registered_pci_driver; [L2608] struct registered_irq registered_irq[16]; [L2618] short number_tasklet_registered = 0; [L2625] struct ddv_tasklet tasklet_registered[1]; [L2635] short number_timer_registered = 0; [L2641] struct ddv_timer timer_registered[1]; [L2651] struct work_struct *shared_workqueue[10]; [L2661] spinlock_t kernel_lock; [L3347] request_queue_t fixed_request_queue[10]; [L3349] int number_request_queue_used = 0; [L3433] struct proc_dir_entry *proc_root_driver; [L3743] struct ddv_tty_driver global_tty_driver; [L3922] int ddv_ioport_request_start; [L3923] int ddv_ioport_request_len; VAL [={0:0}, ={-1:8}, ={0:0}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=0, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L1850] _ddv_module_init = zf_init [L1851] _ddv_module_exit = zf_exit [L2725] int err; [L2727] current_execution_context = 1 [L2665] int i; [L4155] lock->init = 1 [L4156] lock->locked = 0 VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] i = 0 VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] i++ VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] i++ VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] i++ VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] i++ VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] COND FALSE !(i < 10) VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2673] i = 0 VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2673] COND TRUE i < 1 [L2674] tasklet_registered[i].tasklet = ((void *)0) [L2675] tasklet_registered[i].is_running = 0 VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2673] i++ VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2673] COND FALSE !(i < 1) VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L1776] int ret; [L4482] return 0; VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L12] COND TRUE !expression VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L12] reach_error() VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 393 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 76.4s, OverallIterations: 12, TraceHistogramMax: 10, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 5150 SDtfs, 6554 SDslu, 6023 SDs, 0 SdLazy, 260 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=396occurred in iteration=11, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 19 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 66.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 490 NumberOfCodeBlocks, 486 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 436 ConstructedInterpolants, 0 QuantifiedInterpolants, 834 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5269 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 18/588 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 08:47:21,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:47:24,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:47:24,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:47:24,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-28 08:47:24,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:47:24,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:47:24,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:47:24,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:47:24,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:47:24,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:47:24,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:47:24,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:47:24,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:47:24,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:47:24,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:47:24,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:47:24,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-28 08:47:24,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:47:24,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:47:24,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:47:24,726 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 08:47:24,775 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:47:24,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:47:24,777 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:47:24,777 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:47:24,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:47:24,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:47:24,780 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:47:24,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:47:24,780 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:47:24,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:47:24,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:47:24,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:47:24,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:47:24,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:47:24,783 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 08:47:24,783 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 08:47:24,783 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:47:24,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:47:24,784 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:47:24,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:47:24,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:47:24,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:47:24,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:47:24,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:47:24,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:47:24,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:47:24,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:47:24,786 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 08:47:24,786 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 08:47:24,786 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:47:24,786 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:47:24,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:47:24,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:47:24,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 08:47:24,788 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de [2021-10-28 08:47:25,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:47:25,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:47:25,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:47:25,260 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:47:25,260 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:47:25,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-10-28 08:47:25,328 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/data/99c8181dc/14d6889470b44b8f9eb7a2480e152d6e/FLAG4a78bb6d6 [2021-10-28 08:47:26,177 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:47:26,178 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-10-28 08:47:26,220 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/data/99c8181dc/14d6889470b44b8f9eb7a2480e152d6e/FLAG4a78bb6d6 [2021-10-28 08:47:26,718 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/data/99c8181dc/14d6889470b44b8f9eb7a2480e152d6e [2021-10-28 08:47:26,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:47:26,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:47:26,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:47:26,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:47:26,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:47:26,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:47:26" (1/1) ... [2021-10-28 08:47:26,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58ed5cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:26, skipping insertion in model container [2021-10-28 08:47:26,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:47:26" (1/1) ... [2021-10-28 08:47:26,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:47:26,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:47:27,331 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2021-10-28 08:47:29,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:47:29,207 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:47:29,224 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2021-10-28 08:47:29,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:47:29,722 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:47:29,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29 WrapperNode [2021-10-28 08:47:29,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:47:29,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:47:29,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:47:29,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:47:29,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... [2021-10-28 08:47:29,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... [2021-10-28 08:47:30,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:47:30,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:47:30,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:47:30,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:47:30,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... [2021-10-28 08:47:30,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... [2021-10-28 08:47:30,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... [2021-10-28 08:47:30,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... [2021-10-28 08:47:30,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... [2021-10-28 08:47:30,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... [2021-10-28 08:47:30,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... [2021-10-28 08:47:30,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:47:30,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:47:30,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:47:30,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:47:30,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... [2021-10-28 08:47:30,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:47:30,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:47:30,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:47:30,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:47:30,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:47:30,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-10-28 08:47:30,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 08:47:30,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-28 08:47:30,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 08:47:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 08:47:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:47:30,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:47:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-10-28 08:47:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 08:47:30,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-10-28 08:47:30,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 08:47:30,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:47:30,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 08:47:30,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-10-28 08:47:30,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-28 08:47:30,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-10-28 08:47:30,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 08:47:30,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 08:47:30,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 08:47:37,657 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:47:37,657 INFO L299 CfgBuilder]: Removed 515 assume(true) statements. [2021-10-28 08:47:37,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:47:37 BoogieIcfgContainer [2021-10-28 08:47:37,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:47:37,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:47:37,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:47:37,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:47:37,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:47:26" (1/3) ... [2021-10-28 08:47:37,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f33b4ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:47:37, skipping insertion in model container [2021-10-28 08:47:37,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (2/3) ... [2021-10-28 08:47:37,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f33b4ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:47:37, skipping insertion in model container [2021-10-28 08:47:37,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:47:37" (3/3) ... [2021-10-28 08:47:37,672 INFO L111 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw.i [2021-10-28 08:47:37,679 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:47:37,679 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-10-28 08:47:37,770 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:47:37,781 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 [2021-10-28 08:47:37,782 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-10-28 08:47:37,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 393 states, 383 states have (on average 1.328981723237598) internal successors, (509), 392 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:37,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 08:47:37,829 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:37,830 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:47:37,830 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-28 08:47:37,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:37,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1448150405, now seen corresponding path program 1 times [2021-10-28 08:47:37,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:47:37,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231024446] [2021-10-28 08:47:37,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:37,858 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:47:37,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:47:37,863 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:47:37,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 08:47:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:47:38,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 08:47:38,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:47:38,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:38,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:47:38,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:38,560 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:47:38,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231024446] [2021-10-28 08:47:38,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231024446] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:47:38,562 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:47:38,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 08:47:38,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312351004] [2021-10-28 08:47:38,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 08:47:38,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:47:38,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 08:47:38,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:47:38,586 INFO L87 Difference]: Start difference. First operand has 393 states, 383 states have (on average 1.328981723237598) internal successors, (509), 392 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:38,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:38,637 INFO L93 Difference]: Finished difference Result 781 states and 1011 transitions. [2021-10-28 08:47:38,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 08:47:38,638 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-10-28 08:47:38,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:38,653 INFO L225 Difference]: With dead ends: 781 [2021-10-28 08:47:38,653 INFO L226 Difference]: Without dead ends: 376 [2021-10-28 08:47:38,658 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:47:38,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-10-28 08:47:38,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2021-10-28 08:47:38,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 367 states have (on average 1.2833787465940054) internal successors, (471), 375 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:38,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 471 transitions. [2021-10-28 08:47:38,720 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 471 transitions. Word has length 12 [2021-10-28 08:47:38,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:38,721 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 471 transitions. [2021-10-28 08:47:38,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:38,722 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 471 transitions. [2021-10-28 08:47:38,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 08:47:38,722 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:38,722 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:47:38,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:47:38,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:47:38,942 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-28 08:47:38,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:38,943 INFO L85 PathProgramCache]: Analyzing trace with hash 806641781, now seen corresponding path program 1 times [2021-10-28 08:47:38,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:47:38,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [20796902] [2021-10-28 08:47:38,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:38,945 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:47:38,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:47:38,961 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:47:39,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 08:47:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:47:40,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:47:40,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:47:40,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:40,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:47:40,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:40,374 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:47:40,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [20796902] [2021-10-28 08:47:40,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [20796902] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:47:40,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:47:40,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-28 08:47:40,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628594799] [2021-10-28 08:47:40,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:47:40,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:47:40,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:47:40,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:47:40,384 INFO L87 Difference]: Start difference. First operand 376 states and 471 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:40,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:40,733 INFO L93 Difference]: Finished difference Result 1121 states and 1407 transitions. [2021-10-28 08:47:40,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:47:40,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 12 [2021-10-28 08:47:40,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:40,745 INFO L225 Difference]: With dead ends: 1121 [2021-10-28 08:47:40,746 INFO L226 Difference]: Without dead ends: 750 [2021-10-28 08:47:40,761 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:47:40,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2021-10-28 08:47:40,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 380. [2021-10-28 08:47:40,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 371 states have (on average 1.280323450134771) internal successors, (475), 379 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:40,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 475 transitions. [2021-10-28 08:47:40,864 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 475 transitions. Word has length 12 [2021-10-28 08:47:40,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:40,865 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 475 transitions. [2021-10-28 08:47:40,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:40,865 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 475 transitions. [2021-10-28 08:47:40,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 08:47:40,867 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:40,867 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:47:40,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:47:41,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:47:41,085 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-28 08:47:41,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:41,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1218920273, now seen corresponding path program 1 times [2021-10-28 08:47:41,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:47:41,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318869577] [2021-10-28 08:47:41,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:41,088 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:47:41,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:47:41,101 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:47:41,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 08:47:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:47:41,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:47:41,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:47:42,124 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:47:42,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:47:42,374 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:47:42,374 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:47:42,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318869577] [2021-10-28 08:47:42,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318869577] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 08:47:42,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:47:42,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-10-28 08:47:42,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400765106] [2021-10-28 08:47:42,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:47:42,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:47:42,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:47:42,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:47:42,377 INFO L87 Difference]: Start difference. First operand 380 states and 475 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:42,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:42,730 INFO L93 Difference]: Finished difference Result 760 states and 953 transitions. [2021-10-28 08:47:42,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:47:42,731 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 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 18 [2021-10-28 08:47:42,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:42,734 INFO L225 Difference]: With dead ends: 760 [2021-10-28 08:47:42,734 INFO L226 Difference]: Without dead ends: 388 [2021-10-28 08:47:42,735 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:47:42,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-10-28 08:47:42,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2021-10-28 08:47:42,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 379 states have (on average 1.2717678100263852) internal successors, (482), 387 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:42,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 482 transitions. [2021-10-28 08:47:42,752 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 482 transitions. Word has length 18 [2021-10-28 08:47:42,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:42,753 INFO L470 AbstractCegarLoop]: Abstraction has 388 states and 482 transitions. [2021-10-28 08:47:42,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:42,753 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 482 transitions. [2021-10-28 08:47:42,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 08:47:42,754 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:42,754 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:47:42,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:47:42,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:47:42,970 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-28 08:47:42,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:42,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1923404377, now seen corresponding path program 2 times [2021-10-28 08:47:42,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:47:42,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610986966] [2021-10-28 08:47:42,973 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:47:42,973 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:47:42,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:47:42,978 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:47:43,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 08:47:50,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:47:50,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:47:50,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:47:50,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:47:50,476 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:47:50,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:47:50,827 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:47:50,828 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:47:50,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610986966] [2021-10-28 08:47:50,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610986966] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 08:47:50,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:47:50,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-10-28 08:47:50,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907170441] [2021-10-28 08:47:50,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 08:47:50,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:47:50,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 08:47:50,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:47:50,847 INFO L87 Difference]: Start difference. First operand 388 states and 482 transitions. Second operand has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:51,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:51,626 INFO L93 Difference]: Finished difference Result 768 states and 959 transitions. [2021-10-28 08:47:51,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:47:51,627 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-28 08:47:51,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:51,629 INFO L225 Difference]: With dead ends: 768 [2021-10-28 08:47:51,630 INFO L226 Difference]: Without dead ends: 396 [2021-10-28 08:47:51,631 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-10-28 08:47:51,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-10-28 08:47:51,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2021-10-28 08:47:51,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 387 states have (on average 1.2661498708010337) internal successors, (490), 395 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:51,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 490 transitions. [2021-10-28 08:47:51,645 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 490 transitions. Word has length 26 [2021-10-28 08:47:51,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:51,646 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 490 transitions. [2021-10-28 08:47:51,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:51,646 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 490 transitions. [2021-10-28 08:47:51,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 08:47:51,647 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:51,648 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:47:51,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:47:51,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:47:51,865 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-28 08:47:51,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:51,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1031986529, now seen corresponding path program 3 times [2021-10-28 08:47:51,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:47:51,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892133153] [2021-10-28 08:47:51,877 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:47:51,890 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:47:51,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:47:51,892 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:47:51,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 08:48:09,152 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-10-28 08:48:09,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-28 08:48:09,152 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:48:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:48:19,133 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 08:48:19,148 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:48:19,150 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:48:19,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:48:19,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:48:19,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:48:19,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:48:19,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:48:19,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:48:19,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:48:19,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:48:19,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:19,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:48:19,380 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2021-10-28 08:48:19,384 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:48:19,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:48:19 BoogieIcfgContainer [2021-10-28 08:48:19,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:48:19,838 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:48:19,838 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:48:19,838 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:48:19,853 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:47:37" (3/4) ... [2021-10-28 08:48:19,858 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:48:19,858 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:48:19,862 INFO L168 Benchmark]: Toolchain (without parser) took 53114.44 ms. Allocated memory was 56.6 MB in the beginning and 176.2 MB in the end (delta: 119.5 MB). Free memory was 34.8 MB in the beginning and 37.6 MB in the end (delta: -2.7 MB). Peak memory consumption was 117.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:19,867 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 46.1 MB. Free memory is still 26.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:48:19,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2991.29 ms. Allocated memory was 56.6 MB in the beginning and 86.0 MB in the end (delta: 29.4 MB). Free memory was 34.7 MB in the beginning and 48.0 MB in the end (delta: -13.3 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:19,872 INFO L168 Benchmark]: Boogie Procedure Inliner took 384.39 ms. Allocated memory is still 86.0 MB. Free memory was 48.0 MB in the beginning and 49.2 MB in the end (delta: -1.2 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:19,872 INFO L168 Benchmark]: Boogie Preprocessor took 221.70 ms. Allocated memory is still 86.0 MB. Free memory was 49.2 MB in the beginning and 39.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:19,873 INFO L168 Benchmark]: RCFGBuilder took 7315.70 ms. Allocated memory was 86.0 MB in the beginning and 176.2 MB in the end (delta: 90.2 MB). Free memory was 39.1 MB in the beginning and 106.8 MB in the end (delta: -67.7 MB). Peak memory consumption was 84.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:19,873 INFO L168 Benchmark]: TraceAbstraction took 42172.75 ms. Allocated memory is still 176.2 MB. Free memory was 106.8 MB in the beginning and 37.6 MB in the end (delta: 69.3 MB). Peak memory consumption was 69.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:19,874 INFO L168 Benchmark]: Witness Printer took 20.55 ms. Allocated memory is still 176.2 MB. Free memory is still 37.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:48:19,881 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 46.1 MB. Free memory is still 26.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2991.29 ms. Allocated memory was 56.6 MB in the beginning and 86.0 MB in the end (delta: 29.4 MB). Free memory was 34.7 MB in the beginning and 48.0 MB in the end (delta: -13.3 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 384.39 ms. Allocated memory is still 86.0 MB. Free memory was 48.0 MB in the beginning and 49.2 MB in the end (delta: -1.2 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 221.70 ms. Allocated memory is still 86.0 MB. Free memory was 49.2 MB in the beginning and 39.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 7315.70 ms. Allocated memory was 86.0 MB in the beginning and 176.2 MB in the end (delta: 90.2 MB). Free memory was 39.1 MB in the beginning and 106.8 MB in the end (delta: -67.7 MB). Peak memory consumption was 84.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 42172.75 ms. Allocated memory is still 176.2 MB. Free memory was 106.8 MB in the beginning and 37.6 MB in the end (delta: 69.3 MB). Peak memory consumption was 69.3 MB. Max. memory is 16.1 GB. * Witness Printer took 20.55 ms. Allocated memory is still 176.2 MB. Free memory is still 37.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 1474. Possible FailurePath: [L20] int current_execution_context; [L31] int (* _ddv_module_init)(void); [L32] void (* _ddv_module_exit)(void); [L232] unsigned long jiffies; [L1474] char _ddv_module_author[] = "Fernando Fuganti "; [L1475] char _ddv_module_description[] = "MachZ ZF-Logic Watchdog driver"; [L1476] char _ddv_module_license[] = "GPL"; [L1478] static int nowayout = 0; [L1479] char _ddv_module_param_nowayout [] = "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)"; [L1483-L1487] static struct watchdog_info zf_info = { .options = 0x8000 | 0x0100, .firmware_version = 1, .identity = "ZF-Logic watchdog", }; [L1488] static int action = 0; [L1489] char _ddv_module_param_action [] = "after watchdog resets, generate: 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI"; [L1491] static int zf_action = 0x0800; [L1492] static unsigned long zf_is_open; [L1493] static char zf_expect_close; [L1494] static spinlock_t zf_lock; [L1495] static spinlock_t zf_port_lock; [L1496] static struct timer_list zf_timer; [L1497] static unsigned long next_heartbeat = 0; [L1743-L1750] static const struct file_operations zf_fops = { .owner = ((struct module *) 0), .llseek = no_llseek, .write = zf_write, .ioctl = zf_ioctl, .open = zf_open, .release = zf_close, }; [L1752-L1756] static struct miscdevice zf_miscdev = { .minor = 130, .name = "watchdog", .fops = (struct file_operations *)&zf_fops, }; [L1763-L1765] static struct notifier_block zf_notifier = { .notifier_call = zf_notify_sys, }; [L1845] int (* _ddv_tmp_init)(void) = zf_init; [L1846] void (* _ddv_tmp_exit)(void) = zf_exit; [L1897] struct cdev fixed_cdev[1]; [L1898] int fixed_cdev_used = 0; [L1900] short number_cdev_registered = 0; [L1911] struct ddv_cdev cdev_registered[1]; [L2448] short number_genhd_registered = 0; [L2449] short number_fixed_genhd_used = 0; [L2460] struct gendisk fixed_gendisk[10]; [L2461] struct ddv_genhd genhd_registered[10]; [L2597] struct ddv_pci_driver registered_pci_driver; [L2608] struct registered_irq registered_irq[16]; [L2618] short number_tasklet_registered = 0; [L2625] struct ddv_tasklet tasklet_registered[1]; [L2635] short number_timer_registered = 0; [L2641] struct ddv_timer timer_registered[1]; [L2651] struct work_struct *shared_workqueue[10]; [L2661] spinlock_t kernel_lock; [L3347] request_queue_t fixed_request_queue[10]; [L3349] int number_request_queue_used = 0; [L3433] struct proc_dir_entry *proc_root_driver; [L3743] struct ddv_tty_driver global_tty_driver; [L3922] int ddv_ioport_request_start; [L3923] int ddv_ioport_request_len; VAL [={0:0}, ={-1:8}, ={0:0}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=0, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L1850] _ddv_module_init = zf_init [L1851] _ddv_module_exit = zf_exit [L2725] int err; [L2727] current_execution_context = 1 [L2665] int i; [L4155] lock->init = 1 [L4156] lock->locked = 0 VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] i = 0 VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] i++ VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] i++ VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] i++ VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] i++ VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] i++ VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] COND FALSE !(i < 10) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2673] i = 0 VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2673] COND TRUE i < 1 [L2674] tasklet_registered[i].tasklet = ((void *)0) [L2675] tasklet_registered[i].is_running = 0 VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2673] i++ VAL [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2673] COND FALSE !(i < 1) VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L1776] int ret; [L4482] return 0; VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L12] COND TRUE !expression VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L12] reach_error() VAL [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 393 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 41.6s, OverallIterations: 5, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1887 SDtfs, 4185 SDslu, 4624 SDs, 0 SdLazy, 224 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 132 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=396occurred in iteration=4, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 370 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 25.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 236 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1516 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 4/84 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 08:48:19,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a23f4b9f-d911-4ff0-9ca6-a9d7ffbb645b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...