./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_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD --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_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD --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 23:12:12,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:12:12,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:12:12,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:12:12,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:12:12,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:12:12,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:12:12,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:12:12,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:12:12,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:12:12,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:12:12,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:12:12,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:12:12,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:12:12,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:12:12,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:12:12,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:12:12,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:12:12,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:12:12,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:12:12,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:12:12,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:12:12,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:12:12,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:12:12,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:12:12,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:12:12,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:12:12,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:12:12,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:12:12,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:12:12,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:12:12,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:12:12,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:12:12,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:12:12,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:12:12,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:12:12,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:12:12,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:12:12,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:12:12,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:12:12,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:12:12,992 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:12:13,043 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:12:13,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:12:13,044 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:12:13,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:12:13,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:12:13,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:12:13,047 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:12:13,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:12:13,048 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:12:13,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:12:13,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:12:13,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:12:13,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:12:13,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:12:13,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:12:13,050 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:12:13,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:12:13,050 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:12:13,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:12:13,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:12:13,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:12:13,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:12:13,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:12:13,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:12:13,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:12:13,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:12:13,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:12:13,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:12:13,054 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:12:13,054 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:12:13,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:12:13,055 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:12:13,055 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_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de [2021-10-28 23:12:13,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:12:13,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:12:13,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:12:13,433 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:12:13,434 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:12:13,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-10-28 23:12:13,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/data/85c9f9a06/0e3eaddb147b4a0495d3b8478d18761b/FLAGf54401178 [2021-10-28 23:12:14,520 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:12:14,521 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-10-28 23:12:14,590 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/data/85c9f9a06/0e3eaddb147b4a0495d3b8478d18761b/FLAGf54401178 [2021-10-28 23:12:15,046 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/data/85c9f9a06/0e3eaddb147b4a0495d3b8478d18761b [2021-10-28 23:12:15,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:12:15,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:12:15,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:12:15,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:12:15,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:12:15,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:12:15" (1/1) ... [2021-10-28 23:12:15,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65e77b7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:15, skipping insertion in model container [2021-10-28 23:12:15,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:12:15" (1/1) ... [2021-10-28 23:12:15,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:12:15,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:12:15,526 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_35dfda09-2123-4356-b4e8-516c7f0f1337/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2021-10-28 23:12:16,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:12:16,725 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:12:16,738 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_35dfda09-2123-4356-b4e8-516c7f0f1337/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2021-10-28 23:12:16,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:12:17,155 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:12:17,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:17 WrapperNode [2021-10-28 23:12:17,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:12:17,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:12:17,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:12:17,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:12:17,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:17" (1/1) ... [2021-10-28 23:12:17,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:17" (1/1) ... [2021-10-28 23:12:17,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:12:17,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:12:17,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:12:17,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:12:17,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:17" (1/1) ... [2021-10-28 23:12:17,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:17" (1/1) ... [2021-10-28 23:12:17,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:17" (1/1) ... [2021-10-28 23:12:17,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:17" (1/1) ... [2021-10-28 23:12:17,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:17" (1/1) ... [2021-10-28 23:12:17,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:17" (1/1) ... [2021-10-28 23:12:17,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:17" (1/1) ... [2021-10-28 23:12:17,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:12:17,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:12:17,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:12:17,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:12:17,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:17" (1/1) ... [2021-10-28 23:12:17,531 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:12:17,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:17,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:12:17,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:12:17,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:12:17,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-10-28 23:12:17,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:12:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:12:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:12:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:12:17,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:12:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:12:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:12:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:12:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:12:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:12:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:12:21,386 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:12:21,387 INFO L299 CfgBuilder]: Removed 515 assume(true) statements. [2021-10-28 23:12:21,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:12:21 BoogieIcfgContainer [2021-10-28 23:12:21,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:12:21,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:12:21,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:12:21,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:12:21,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:12:15" (1/3) ... [2021-10-28 23:12:21,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49dd7f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:12:21, skipping insertion in model container [2021-10-28 23:12:21,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:12:17" (2/3) ... [2021-10-28 23:12:21,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49dd7f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:12:21, skipping insertion in model container [2021-10-28 23:12:21,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:12:21" (3/3) ... [2021-10-28 23:12:21,400 INFO L111 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw.i [2021-10-28 23:12:21,406 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:12:21,406 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-10-28 23:12:21,474 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:12:21,482 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 23:12:21,482 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-10-28 23:12:21,518 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 23:12:21,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 23:12:21,523 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:12:21,524 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:21,525 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 23:12:21,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:21,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1448150405, now seen corresponding path program 1 times [2021-10-28 23:12:21,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:21,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283546842] [2021-10-28 23:12:21,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:21,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:22,056 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 23:12:22,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:22,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283546842] [2021-10-28 23:12:22,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283546842] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:12:22,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:12:22,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:12:22,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149457565] [2021-10-28 23:12:22,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:12:22,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:12:22,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:12:22,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:12:22,083 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 23:12:22,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:12:22,147 INFO L93 Difference]: Finished difference Result 781 states and 1011 transitions. [2021-10-28 23:12:22,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:12:22,148 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 23:12:22,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:12:22,167 INFO L225 Difference]: With dead ends: 781 [2021-10-28 23:12:22,168 INFO L226 Difference]: Without dead ends: 376 [2021-10-28 23:12:22,177 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 23:12:22,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-10-28 23:12:22,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2021-10-28 23:12:22,263 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 23:12:22,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 471 transitions. [2021-10-28 23:12:22,269 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 471 transitions. Word has length 12 [2021-10-28 23:12:22,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:12:22,269 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 471 transitions. [2021-10-28 23:12:22,270 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 23:12:22,270 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 471 transitions. [2021-10-28 23:12:22,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 23:12:22,271 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:12:22,271 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:22,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:12:22,272 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 23:12:22,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:22,275 INFO L85 PathProgramCache]: Analyzing trace with hash 806641781, now seen corresponding path program 1 times [2021-10-28 23:12:22,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:22,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546046029] [2021-10-28 23:12:22,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:22,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:22,454 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 23:12:22,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:22,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546046029] [2021-10-28 23:12:22,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546046029] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:12:22,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:12:22,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:12:22,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078953334] [2021-10-28 23:12:22,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:12:22,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:12:22,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:12:22,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:12:22,467 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 23:12:22,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:12:22,553 INFO L93 Difference]: Finished difference Result 751 states and 942 transitions. [2021-10-28 23:12:22,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:12:22,554 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 23:12:22,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:12:22,560 INFO L225 Difference]: With dead ends: 751 [2021-10-28 23:12:22,561 INFO L226 Difference]: Without dead ends: 380 [2021-10-28 23:12:22,562 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 23:12:22,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2021-10-28 23:12:22,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 378. [2021-10-28 23:12:22,587 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 23:12:22,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 473 transitions. [2021-10-28 23:12:22,589 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 473 transitions. Word has length 12 [2021-10-28 23:12:22,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:12:22,591 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 473 transitions. [2021-10-28 23:12:22,591 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 23:12:22,592 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 473 transitions. [2021-10-28 23:12:22,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:12:22,592 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:12:22,593 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:22,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:12:22,594 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 23:12:22,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:22,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1115618639, now seen corresponding path program 1 times [2021-10-28 23:12:22,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:22,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592791248] [2021-10-28 23:12:22,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:22,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:22,779 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 23:12:22,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:22,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592791248] [2021-10-28 23:12:22,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592791248] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:22,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633086245] [2021-10-28 23:12:22,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:22,788 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:22,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:22,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:12:22,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:12:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:23,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:12:23,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:23,260 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 23:12:23,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633086245] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:23,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:12:23,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-28 23:12:23,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834509262] [2021-10-28 23:12:23,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:12:23,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:12:23,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:12:23,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:12:23,264 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 23:12:23,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:12:23,312 INFO L93 Difference]: Finished difference Result 754 states and 944 transitions. [2021-10-28 23:12:23,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:12:23,313 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 23:12:23,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:12:23,317 INFO L225 Difference]: With dead ends: 754 [2021-10-28 23:12:23,317 INFO L226 Difference]: Without dead ends: 382 [2021-10-28 23:12:23,318 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 23:12:23,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-10-28 23:12:23,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 380. [2021-10-28 23:12:23,332 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 23:12:23,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 475 transitions. [2021-10-28 23:12:23,334 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 475 transitions. Word has length 16 [2021-10-28 23:12:23,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:12:23,334 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 475 transitions. [2021-10-28 23:12:23,335 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 23:12:23,335 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 475 transitions. [2021-10-28 23:12:23,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:12:23,336 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:12:23,336 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:23,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:23,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:23,560 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 23:12:23,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:23,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1218920273, now seen corresponding path program 2 times [2021-10-28 23:12:23,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:23,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886348721] [2021-10-28 23:12:23,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:23,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:23,737 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 23:12:23,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:23,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886348721] [2021-10-28 23:12:23,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886348721] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:23,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984171026] [2021-10-28 23:12:23,739 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:12:23,739 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:23,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:23,740 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:12:23,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:12:25,891 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:12:25,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:12:25,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:12:25,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:25,977 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 23:12:25,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984171026] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:25,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:12:25,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-28 23:12:25,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548255315] [2021-10-28 23:12:25,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:12:25,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:12:25,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:12:25,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:12:25,981 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 23:12:26,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:12:26,043 INFO L93 Difference]: Finished difference Result 756 states and 946 transitions. [2021-10-28 23:12:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:12:26,043 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 23:12:26,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:12:26,046 INFO L225 Difference]: With dead ends: 756 [2021-10-28 23:12:26,046 INFO L226 Difference]: Without dead ends: 384 [2021-10-28 23:12:26,047 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 23:12:26,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-10-28 23:12:26,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 382. [2021-10-28 23:12:26,058 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 23:12:26,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 477 transitions. [2021-10-28 23:12:26,060 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 477 transitions. Word has length 18 [2021-10-28 23:12:26,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:12:26,060 INFO L470 AbstractCegarLoop]: Abstraction has 382 states and 477 transitions. [2021-10-28 23:12:26,060 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 23:12:26,061 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 477 transitions. [2021-10-28 23:12:26,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 23:12:26,061 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:12:26,062 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:26,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:26,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:26,280 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 23:12:26,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:26,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1707542739, now seen corresponding path program 3 times [2021-10-28 23:12:26,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:26,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889018371] [2021-10-28 23:12:26,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:26,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:26,424 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 23:12:26,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:26,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889018371] [2021-10-28 23:12:26,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889018371] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:26,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104724360] [2021-10-28 23:12:26,425 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:12:26,425 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:26,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:26,426 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:12:26,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 23:12:31,981 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-28 23:12:31,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:12:32,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:12:32,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:32,097 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 23:12:32,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104724360] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:32,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:12:32,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-28 23:12:32,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889430015] [2021-10-28 23:12:32,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:12:32,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:12:32,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:12:32,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:12:32,101 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 23:12:32,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:12:32,184 INFO L93 Difference]: Finished difference Result 758 states and 948 transitions. [2021-10-28 23:12:32,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:12:32,185 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 23:12:32,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:12:32,189 INFO L225 Difference]: With dead ends: 758 [2021-10-28 23:12:32,189 INFO L226 Difference]: Without dead ends: 386 [2021-10-28 23:12:32,190 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 23:12:32,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2021-10-28 23:12:32,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 384. [2021-10-28 23:12:32,205 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 23:12:32,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 479 transitions. [2021-10-28 23:12:32,207 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 479 transitions. Word has length 20 [2021-10-28 23:12:32,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:12:32,208 INFO L470 AbstractCegarLoop]: Abstraction has 384 states and 479 transitions. [2021-10-28 23:12:32,208 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 23:12:32,208 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 479 transitions. [2021-10-28 23:12:32,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 23:12:32,209 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:12:32,209 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:32,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:32,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:32,436 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 23:12:32,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:32,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1172669995, now seen corresponding path program 4 times [2021-10-28 23:12:32,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:32,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115492782] [2021-10-28 23:12:32,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:32,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:32,648 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 23:12:32,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:32,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115492782] [2021-10-28 23:12:32,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115492782] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:32,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846747271] [2021-10-28 23:12:32,649 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:12:32,649 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:32,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:32,652 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:12:32,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 23:12:32,883 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:12:32,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:12:32,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:12:32,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:32,973 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 23:12:32,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846747271] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:32,976 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:12:32,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-28 23:12:32,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885181530] [2021-10-28 23:12:32,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:12:32,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:12:32,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:12:32,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:12:32,980 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 23:12:33,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:12:33,053 INFO L93 Difference]: Finished difference Result 760 states and 950 transitions. [2021-10-28 23:12:33,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:12:33,053 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 23:12:33,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:12:33,056 INFO L225 Difference]: With dead ends: 760 [2021-10-28 23:12:33,056 INFO L226 Difference]: Without dead ends: 388 [2021-10-28 23:12:33,057 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 23:12:33,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-10-28 23:12:33,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 386. [2021-10-28 23:12:33,068 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 23:12:33,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 481 transitions. [2021-10-28 23:12:33,070 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 481 transitions. Word has length 22 [2021-10-28 23:12:33,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:12:33,070 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 481 transitions. [2021-10-28 23:12:33,071 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 23:12:33,071 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 481 transitions. [2021-10-28 23:12:33,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:12:33,072 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:12:33,072 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:33,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:33,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-28 23:12:33,288 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 23:12:33,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:33,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1196798551, now seen corresponding path program 5 times [2021-10-28 23:12:33,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:33,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457754462] [2021-10-28 23:12:33,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:33,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:33,467 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 23:12:33,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:33,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457754462] [2021-10-28 23:12:33,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457754462] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:33,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802187506] [2021-10-28 23:12:33,468 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:12:33,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:33,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:33,469 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:12:33,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 23:12:33,904 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-28 23:12:33,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:12:33,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:12:33,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:33,996 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 23:12:33,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802187506] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:33,997 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:12:33,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-10-28 23:12:33,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543823110] [2021-10-28 23:12:33,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:12:33,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:12:33,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:12:33,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:12:33,999 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 23:12:34,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:12:34,082 INFO L93 Difference]: Finished difference Result 762 states and 952 transitions. [2021-10-28 23:12:34,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:12:34,083 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 23:12:34,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:12:34,086 INFO L225 Difference]: With dead ends: 762 [2021-10-28 23:12:34,086 INFO L226 Difference]: Without dead ends: 390 [2021-10-28 23:12:34,087 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 23:12:34,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-10-28 23:12:34,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 388. [2021-10-28 23:12:34,098 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 23:12:34,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 483 transitions. [2021-10-28 23:12:34,101 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 483 transitions. Word has length 24 [2021-10-28 23:12:34,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:12:34,102 INFO L470 AbstractCegarLoop]: Abstraction has 388 states and 483 transitions. [2021-10-28 23:12:34,102 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 23:12:34,102 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 483 transitions. [2021-10-28 23:12:34,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 23:12:34,103 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:12:34,103 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:34,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:34,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:34,328 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 23:12:34,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:34,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1923404377, now seen corresponding path program 6 times [2021-10-28 23:12:34,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:34,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648858400] [2021-10-28 23:12:34,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:34,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:34,500 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 23:12:34,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:34,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648858400] [2021-10-28 23:12:34,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648858400] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:34,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629851784] [2021-10-28 23:12:34,502 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:12:34,502 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:34,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:34,503 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:12:34,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 23:12:51,311 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-10-28 23:12:51,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:12:51,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:12:51,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:51,444 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 23:12:51,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629851784] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:51,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:12:51,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-10-28 23:12:51,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137727513] [2021-10-28 23:12:51,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:12:51,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:12:51,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:12:51,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:12:51,447 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 23:12:51,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:12:51,557 INFO L93 Difference]: Finished difference Result 764 states and 954 transitions. [2021-10-28 23:12:51,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:12:51,558 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 23:12:51,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:12:51,560 INFO L225 Difference]: With dead ends: 764 [2021-10-28 23:12:51,560 INFO L226 Difference]: Without dead ends: 392 [2021-10-28 23:12:51,561 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 23:12:51,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2021-10-28 23:12:51,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 390. [2021-10-28 23:12:51,571 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 23:12:51,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 485 transitions. [2021-10-28 23:12:51,573 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 485 transitions. Word has length 26 [2021-10-28 23:12:51,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:12:51,573 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 485 transitions. [2021-10-28 23:12:51,573 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 23:12:51,574 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 485 transitions. [2021-10-28 23:12:51,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 23:12:51,575 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:12:51,575 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:51,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:51,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:51,788 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 23:12:51,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:51,788 INFO L85 PathProgramCache]: Analyzing trace with hash -111933915, now seen corresponding path program 7 times [2021-10-28 23:12:51,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:51,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076479426] [2021-10-28 23:12:51,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:51,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:51,960 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 23:12:51,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:51,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076479426] [2021-10-28 23:12:51,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076479426] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:51,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129999038] [2021-10-28 23:12:51,961 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:12:51,961 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:51,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:51,962 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:12:51,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 23:12:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:52,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:12:52,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:52,457 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 23:12:52,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129999038] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:52,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:12:52,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-10-28 23:12:52,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369615232] [2021-10-28 23:12:52,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:12:52,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:12:52,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:12:52,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:12:52,459 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 23:12:52,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:12:52,591 INFO L93 Difference]: Finished difference Result 766 states and 956 transitions. [2021-10-28 23:12:52,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:12:52,604 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 23:12:52,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:12:52,606 INFO L225 Difference]: With dead ends: 766 [2021-10-28 23:12:52,606 INFO L226 Difference]: Without dead ends: 394 [2021-10-28 23:12:52,607 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 23:12:52,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-10-28 23:12:52,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 392. [2021-10-28 23:12:52,618 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 23:12:52,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 487 transitions. [2021-10-28 23:12:52,620 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 487 transitions. Word has length 28 [2021-10-28 23:12:52,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:12:52,621 INFO L470 AbstractCegarLoop]: Abstraction has 392 states and 487 transitions. [2021-10-28 23:12:52,621 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 23:12:52,621 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 487 transitions. [2021-10-28 23:12:52,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 23:12:52,622 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:12:52,622 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:52,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-28 23:12:52,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-10-28 23:12:52,823 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 23:12:52,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:52,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1249425187, now seen corresponding path program 8 times [2021-10-28 23:12:52,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:52,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915698279] [2021-10-28 23:12:52,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:52,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:53,041 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 23:12:53,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:53,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915698279] [2021-10-28 23:12:53,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915698279] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:53,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181563577] [2021-10-28 23:12:53,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:12:53,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:53,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:53,043 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:12:53,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 23:12:55,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:12:55,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:12:55,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:12:55,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:12:55,503 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 23:12:55,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181563577] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:55,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:12:55,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-10-28 23:12:55,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134371888] [2021-10-28 23:12:55,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:12:55,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:12:55,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:12:55,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:12:55,507 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 23:12:55,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:12:55,603 INFO L93 Difference]: Finished difference Result 768 states and 958 transitions. [2021-10-28 23:12:55,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:12:55,604 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 23:12:55,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:12:55,607 INFO L225 Difference]: With dead ends: 768 [2021-10-28 23:12:55,607 INFO L226 Difference]: Without dead ends: 396 [2021-10-28 23:12:55,609 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 23:12:55,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-10-28 23:12:55,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 394. [2021-10-28 23:12:55,621 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 23:12:55,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 489 transitions. [2021-10-28 23:12:55,624 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 489 transitions. Word has length 30 [2021-10-28 23:12:55,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:12:55,624 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 489 transitions. [2021-10-28 23:12:55,625 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 23:12:55,625 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 489 transitions. [2021-10-28 23:12:55,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-28 23:12:55,629 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:12:55,629 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:12:55,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:12:55,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-28 23:12:55,843 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 23:12:55,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:12:55,844 INFO L85 PathProgramCache]: Analyzing trace with hash -449503071, now seen corresponding path program 9 times [2021-10-28 23:12:55,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:12:55,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472117621] [2021-10-28 23:12:55,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:12:55,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:12:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:12:56,121 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 23:12:56,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:12:56,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472117621] [2021-10-28 23:12:56,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472117621] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:12:56,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969867929] [2021-10-28 23:12:56,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:12:56,122 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:12:56,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:12:56,126 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:12:56,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 23:13:17,093 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-10-28 23:13:17,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:13:17,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:13:17,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:17,327 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 23:13:17,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969867929] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:13:17,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:13:17,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-10-28 23:13:17,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809110496] [2021-10-28 23:13:17,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:13:17,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:13:17,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:13:17,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:13:17,330 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 23:13:17,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:13:17,429 INFO L93 Difference]: Finished difference Result 769 states and 959 transitions. [2021-10-28 23:13:17,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:13:17,429 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 23:13:17,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:13:17,432 INFO L225 Difference]: With dead ends: 769 [2021-10-28 23:13:17,433 INFO L226 Difference]: Without dead ends: 397 [2021-10-28 23:13:17,434 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:13:17,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2021-10-28 23:13:17,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 396. [2021-10-28 23:13:17,445 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 23:13:17,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 491 transitions. [2021-10-28 23:13:17,447 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 491 transitions. Word has length 32 [2021-10-28 23:13:17,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:13:17,448 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 491 transitions. [2021-10-28 23:13:17,448 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 23:13:17,448 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 491 transitions. [2021-10-28 23:13:17,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 23:13:17,449 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:13:17,449 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:13:17,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:17,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-28 23:13:17,672 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 23:13:17,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:17,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1031986529, now seen corresponding path program 10 times [2021-10-28 23:13:17,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:13:17,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970289557] [2021-10-28 23:13:17,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:13:17,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:13:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:18,367 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:13:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:18,982 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:13:18,982 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:13:18,983 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:13:18,985 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:13:18,985 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:13:18,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:13:18,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:13:18,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:13:18,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:13:18,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:13:18,987 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:13:18,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 23:13:18,990 INFO L731 BasicCegarLoop]: Path program histogram: [10, 1, 1] [2021-10-28 23:13:18,995 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:13:19,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:13:19 BoogieIcfgContainer [2021-10-28 23:13:19,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:13:19,209 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:13:19,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:13:19,210 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:13:19,210 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:12:21" (3/4) ... [2021-10-28 23:13:19,213 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:13:19,214 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:13:19,215 INFO L168 Benchmark]: Toolchain (without parser) took 64163.39 ms. Allocated memory was 102.8 MB in the beginning and 192.9 MB in the end (delta: 90.2 MB). Free memory was 65.8 MB in the beginning and 67.3 MB in the end (delta: -1.5 MB). Peak memory consumption was 88.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:13:19,216 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 102.8 MB. Free memory is still 55.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:13:19,217 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2103.89 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 65.6 MB in the beginning and 95.8 MB in the end (delta: -30.1 MB). Peak memory consumption was 44.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:13:19,217 INFO L168 Benchmark]: Boogie Procedure Inliner took 218.61 ms. Allocated memory is still 132.1 MB. Free memory was 95.8 MB in the beginning and 83.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:13:19,217 INFO L168 Benchmark]: Boogie Preprocessor took 134.77 ms. Allocated memory is still 132.1 MB. Free memory was 83.2 MB in the beginning and 73.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:13:19,218 INFO L168 Benchmark]: RCFGBuilder took 3869.25 ms. Allocated memory was 132.1 MB in the beginning and 159.4 MB in the end (delta: 27.3 MB). Free memory was 73.5 MB in the beginning and 101.0 MB in the end (delta: -27.5 MB). Peak memory consumption was 76.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:13:19,218 INFO L168 Benchmark]: TraceAbstraction took 57817.19 ms. Allocated memory was 159.4 MB in the beginning and 192.9 MB in the end (delta: 33.6 MB). Free memory was 101.0 MB in the beginning and 67.3 MB in the end (delta: 33.8 MB). Peak memory consumption was 95.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:13:19,219 INFO L168 Benchmark]: Witness Printer took 4.25 ms. Allocated memory is still 192.9 MB. Free memory is still 67.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:13:19,222 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 102.8 MB. Free memory is still 55.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2103.89 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 65.6 MB in the beginning and 95.8 MB in the end (delta: -30.1 MB). Peak memory consumption was 44.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 218.61 ms. Allocated memory is still 132.1 MB. Free memory was 95.8 MB in the beginning and 83.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 134.77 ms. Allocated memory is still 132.1 MB. Free memory was 83.2 MB in the beginning and 73.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3869.25 ms. Allocated memory was 132.1 MB in the beginning and 159.4 MB in the end (delta: 27.3 MB). Free memory was 73.5 MB in the beginning and 101.0 MB in the end (delta: -27.5 MB). Peak memory consumption was 76.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 57817.19 ms. Allocated memory was 159.4 MB in the beginning and 192.9 MB in the end (delta: 33.6 MB). Free memory was 101.0 MB in the beginning and 67.3 MB in the end (delta: 33.8 MB). Peak memory consumption was 95.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.25 ms. Allocated memory is still 192.9 MB. Free memory is still 67.3 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 [={-1:7}, ={0:0}, ={0:0}, ={-1:8}, 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}, ={-1:7}, ={-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 = 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] 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}, ={-1:7}, ={-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 [={-1:7}, ={-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] 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}, ={-1:7}, ={-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}, ={-1:7}, ={-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 [={-1:7}, ={-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}, ={-1:8}, ={-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}, ={-1:8}, ={-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}, ={-1:7}, ={-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 [={-1:7}, ={-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}, ={-1:8}, ={-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 [={-1:8}, ={-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}, ={-1:8}, ={-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}, ={-1:7}, ={-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 [={-1:7}, ={-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}] [L2673] i = 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}] [L2673] COND TRUE i < 1 [L2674] tasklet_registered[i].tasklet = ((void *)0) [L2675] tasklet_registered[i].is_running = 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] 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}] [L2673] COND FALSE !(i < 1) 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}] [L1776] int ret; [L4482] return 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}] [L12] COND TRUE !expression 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] reach_error() 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}] - 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: 57.5s, OverallIterations: 12, TraceHistogramMax: 10, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, 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, 0.4s 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: 0.4s SsaConstructionTime, 48.6s SatisfiabilityAnalysisTime, 2.5s 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 23:13:19,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/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 23:13:21,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:13:21,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:13:21,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:13:21,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:13:21,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:13:21,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:13:21,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:13:21,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:13:21,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:13:21,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:13:21,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:13:21,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:13:21,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:13:21,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:13:21,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:13:21,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:13:21,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:13:21,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:13:21,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:13:21,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:13:21,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:13:21,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:13:21,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:13:21,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:13:21,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:13:21,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:13:21,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:13:21,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:13:21,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:13:21,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:13:21,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:13:21,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:13:21,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:13:21,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:13:21,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:13:21,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:13:21,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:13:21,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:13:21,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:13:21,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:13:21,967 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 23:13:22,010 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:13:22,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:13:22,012 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:13:22,012 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:13:22,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:13:22,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:13:22,014 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:13:22,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:13:22,015 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:13:22,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:13:22,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:13:22,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:13:22,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:13:22,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:13:22,018 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:13:22,018 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:13:22,018 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:13:22,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:13:22,018 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:13:22,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:13:22,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:13:22,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:13:22,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:13:22,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:13:22,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:13:22,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:13:22,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:13:22,021 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:13:22,021 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:13:22,022 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:13:22,022 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:13:22,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:13:22,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:13:22,023 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:13:22,023 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_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de [2021-10-28 23:13:22,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:13:22,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:13:22,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:13:22,492 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:13:22,493 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:13:22,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-10-28 23:13:22,578 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/data/b904fa118/cecce303c8244bb09d74fd663e8cb003/FLAGf19ed2c74 [2021-10-28 23:13:23,347 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:13:23,348 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-10-28 23:13:23,397 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/data/b904fa118/cecce303c8244bb09d74fd663e8cb003/FLAGf19ed2c74 [2021-10-28 23:13:23,504 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/data/b904fa118/cecce303c8244bb09d74fd663e8cb003 [2021-10-28 23:13:23,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:13:23,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:13:23,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:13:23,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:13:23,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:13:23,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:13:23" (1/1) ... [2021-10-28 23:13:23,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ce9218e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:23, skipping insertion in model container [2021-10-28 23:13:23,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:13:23" (1/1) ... [2021-10-28 23:13:23,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:13:23,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:13:23,905 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_35dfda09-2123-4356-b4e8-516c7f0f1337/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2021-10-28 23:13:25,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:13:25,383 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:13:25,398 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_35dfda09-2123-4356-b4e8-516c7f0f1337/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2021-10-28 23:13:25,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:13:26,047 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:13:26,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:26 WrapperNode [2021-10-28 23:13:26,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:13:26,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:13:26,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:13:26,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:13:26,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:26" (1/1) ... [2021-10-28 23:13:26,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:26" (1/1) ... [2021-10-28 23:13:26,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:13:26,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:13:26,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:13:26,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:13:26,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:26" (1/1) ... [2021-10-28 23:13:26,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:26" (1/1) ... [2021-10-28 23:13:26,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:26" (1/1) ... [2021-10-28 23:13:26,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:26" (1/1) ... [2021-10-28 23:13:26,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:26" (1/1) ... [2021-10-28 23:13:26,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:26" (1/1) ... [2021-10-28 23:13:26,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:26" (1/1) ... [2021-10-28 23:13:26,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:13:26,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:13:26,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:13:26,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:13:26,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:26" (1/1) ... [2021-10-28 23:13:26,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:13:26,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:26,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:26,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:13:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:13:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-10-28 23:13:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:13:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-28 23:13:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:13:26,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:13:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:13:26,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:13:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-10-28 23:13:26,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:13:26,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-10-28 23:13:26,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:13:26,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:13:26,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:13:26,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-10-28 23:13:26,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-28 23:13:26,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-10-28 23:13:26,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:13:26,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:13:26,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 23:13:34,015 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:13:34,016 INFO L299 CfgBuilder]: Removed 515 assume(true) statements. [2021-10-28 23:13:34,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:13:34 BoogieIcfgContainer [2021-10-28 23:13:34,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:13:34,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:13:34,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:13:34,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:13:34,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:13:23" (1/3) ... [2021-10-28 23:13:34,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f596dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:13:34, skipping insertion in model container [2021-10-28 23:13:34,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:26" (2/3) ... [2021-10-28 23:13:34,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f596dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:13:34, skipping insertion in model container [2021-10-28 23:13:34,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:13:34" (3/3) ... [2021-10-28 23:13:34,028 INFO L111 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw.i [2021-10-28 23:13:34,034 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:13:34,035 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-10-28 23:13:34,096 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:13:34,103 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 23:13:34,103 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-10-28 23:13:34,130 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 23:13:34,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 23:13:34,136 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:13:34,137 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:13:34,137 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 23:13:34,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:34,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1448150405, now seen corresponding path program 1 times [2021-10-28 23:13:34,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:13:34,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320015274] [2021-10-28 23:13:34,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:13:34,163 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:13:34,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:13:34,170 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:13:34,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:13:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:34,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 23:13:34,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:34,771 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 23:13:34,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:13:34,829 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 23:13:34,830 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:13:34,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320015274] [2021-10-28 23:13:34,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320015274] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:13:34,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:13:34,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:13:34,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146711136] [2021-10-28 23:13:34,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:13:34,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:13:34,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:13:34,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:13:34,864 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 23:13:34,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:13:34,963 INFO L93 Difference]: Finished difference Result 781 states and 1011 transitions. [2021-10-28 23:13:34,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:13:34,965 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 23:13:34,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:13:34,991 INFO L225 Difference]: With dead ends: 781 [2021-10-28 23:13:34,992 INFO L226 Difference]: Without dead ends: 376 [2021-10-28 23:13:35,001 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 23:13:35,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-10-28 23:13:35,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2021-10-28 23:13:35,093 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 23:13:35,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 471 transitions. [2021-10-28 23:13:35,098 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 471 transitions. Word has length 12 [2021-10-28 23:13:35,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:13:35,099 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 471 transitions. [2021-10-28 23:13:35,099 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 23:13:35,099 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 471 transitions. [2021-10-28 23:13:35,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 23:13:35,101 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:13:35,101 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:13:35,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:35,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:13:35,317 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 23:13:35,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:35,318 INFO L85 PathProgramCache]: Analyzing trace with hash 806641781, now seen corresponding path program 1 times [2021-10-28 23:13:35,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:13:35,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85057500] [2021-10-28 23:13:35,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:13:35,320 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:13:35,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:13:35,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:13:35,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:13:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:35,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:13:35,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:35,898 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 23:13:35,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:13:35,948 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 23:13:35,948 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:13:35,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85057500] [2021-10-28 23:13:35,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85057500] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:13:35,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:13:35,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-28 23:13:35,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944952421] [2021-10-28 23:13:35,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:13:35,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:13:35,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:13:35,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:13:35,953 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 23:13:36,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:13:36,131 INFO L93 Difference]: Finished difference Result 1121 states and 1407 transitions. [2021-10-28 23:13:36,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:13:36,133 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 23:13:36,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:13:36,139 INFO L225 Difference]: With dead ends: 1121 [2021-10-28 23:13:36,139 INFO L226 Difference]: Without dead ends: 750 [2021-10-28 23:13:36,141 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 23:13:36,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2021-10-28 23:13:36,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 380. [2021-10-28 23:13:36,163 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 23:13:36,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 475 transitions. [2021-10-28 23:13:36,166 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 475 transitions. Word has length 12 [2021-10-28 23:13:36,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:13:36,166 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 475 transitions. [2021-10-28 23:13:36,167 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 23:13:36,167 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 475 transitions. [2021-10-28 23:13:36,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:13:36,168 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:13:36,168 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:13:36,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:36,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:13:36,387 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 23:13:36,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:36,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1218920273, now seen corresponding path program 1 times [2021-10-28 23:13:36,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:13:36,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1689334935] [2021-10-28 23:13:36,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:13:36,389 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:13:36,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:13:36,391 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:13:36,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:13:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:36,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:13:36,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:37,044 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 23:13:37,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:13:37,168 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 23:13:37,168 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:13:37,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1689334935] [2021-10-28 23:13:37,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1689334935] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:13:37,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:13:37,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-10-28 23:13:37,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305165893] [2021-10-28 23:13:37,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:13:37,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:13:37,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:13:37,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:13:37,171 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 23:13:37,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:13:37,519 INFO L93 Difference]: Finished difference Result 760 states and 953 transitions. [2021-10-28 23:13:37,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:13:37,521 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 23:13:37,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:13:37,524 INFO L225 Difference]: With dead ends: 760 [2021-10-28 23:13:37,524 INFO L226 Difference]: Without dead ends: 388 [2021-10-28 23:13:37,525 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 23:13:37,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-10-28 23:13:37,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2021-10-28 23:13:37,541 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 23:13:37,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 482 transitions. [2021-10-28 23:13:37,543 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 482 transitions. Word has length 18 [2021-10-28 23:13:37,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:13:37,544 INFO L470 AbstractCegarLoop]: Abstraction has 388 states and 482 transitions. [2021-10-28 23:13:37,544 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 23:13:37,545 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 482 transitions. [2021-10-28 23:13:37,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 23:13:37,547 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:13:37,548 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:13:37,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:37,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:13:37,764 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 23:13:37,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:37,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1923404377, now seen corresponding path program 2 times [2021-10-28 23:13:37,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:13:37,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025173051] [2021-10-28 23:13:37,767 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:13:37,767 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:13:37,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:13:37,770 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:13:37,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:13:44,574 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:13:44,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:13:44,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:13:44,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:44,866 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 23:13:44,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:13:45,272 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 23:13:45,272 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:13:45,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025173051] [2021-10-28 23:13:45,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2025173051] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:13:45,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:13:45,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-10-28 23:13:45,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692499610] [2021-10-28 23:13:45,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 23:13:45,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:13:45,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:13:45,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:13:45,275 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 23:13:46,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:13:46,207 INFO L93 Difference]: Finished difference Result 768 states and 959 transitions. [2021-10-28 23:13:46,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:13:46,208 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 23:13:46,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:13:46,211 INFO L225 Difference]: With dead ends: 768 [2021-10-28 23:13:46,211 INFO L226 Difference]: Without dead ends: 396 [2021-10-28 23:13:46,212 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 23:13:46,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-10-28 23:13:46,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2021-10-28 23:13:46,225 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 23:13:46,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 490 transitions. [2021-10-28 23:13:46,227 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 490 transitions. Word has length 26 [2021-10-28 23:13:46,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:13:46,228 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 490 transitions. [2021-10-28 23:13:46,228 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 23:13:46,229 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 490 transitions. [2021-10-28 23:13:46,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 23:13:46,230 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:13:46,230 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:13:46,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-28 23:13:46,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:13:46,444 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 23:13:46,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:46,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1031986529, now seen corresponding path program 3 times [2021-10-28 23:13:46,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:13:46,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568030301] [2021-10-28 23:13:46,446 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:13:46,447 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:13:46,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:13:46,451 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:13:46,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:14:02,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-10-28 23:14:02,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-28 23:14:02,903 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:14:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:14:10,701 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 23:14:10,702 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:14:10,703 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:14:10,705 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:14:10,706 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:14:10,706 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:14:10,706 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:14:10,707 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:14:10,707 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:14:10,707 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:14:10,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:14:10,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:14:10,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:14:10,927 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2021-10-28 23:14:10,931 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:14:11,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:14:11 BoogieIcfgContainer [2021-10-28 23:14:11,142 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:14:11,142 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:14:11,143 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:14:11,143 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:14:11,144 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:13:34" (3/4) ... [2021-10-28 23:14:11,148 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:14:11,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:14:11,151 INFO L168 Benchmark]: Toolchain (without parser) took 47635.17 ms. Allocated memory was 67.1 MB in the beginning and 203.4 MB in the end (delta: 136.3 MB). Free memory was 43.0 MB in the beginning and 94.7 MB in the end (delta: -51.7 MB). Peak memory consumption was 85.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:14:11,152 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 67.1 MB. Free memory is still 49.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:14:11,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2529.89 ms. Allocated memory was 67.1 MB in the beginning and 102.8 MB in the end (delta: 35.7 MB). Free memory was 42.8 MB in the beginning and 56.7 MB in the end (delta: -13.9 MB). Peak memory consumption was 48.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:14:11,154 INFO L168 Benchmark]: Boogie Procedure Inliner took 259.13 ms. Allocated memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: 37.7 MB). Free memory was 56.7 MB in the beginning and 105.5 MB in the end (delta: -48.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:14:11,154 INFO L168 Benchmark]: Boogie Preprocessor took 187.22 ms. Allocated memory is still 140.5 MB. Free memory was 105.5 MB in the beginning and 94.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:14:11,155 INFO L168 Benchmark]: RCFGBuilder took 7521.55 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 94.9 MB in the beginning and 132.7 MB in the end (delta: -37.7 MB). Peak memory consumption was 108.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:14:11,156 INFO L168 Benchmark]: TraceAbstraction took 37121.04 ms. Allocated memory is still 203.4 MB. Free memory was 131.6 MB in the beginning and 94.7 MB in the end (delta: 36.9 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:14:11,156 INFO L168 Benchmark]: Witness Printer took 7.09 ms. Allocated memory is still 203.4 MB. Free memory is still 94.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:14:11,160 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 67.1 MB. Free memory is still 49.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2529.89 ms. Allocated memory was 67.1 MB in the beginning and 102.8 MB in the end (delta: 35.7 MB). Free memory was 42.8 MB in the beginning and 56.7 MB in the end (delta: -13.9 MB). Peak memory consumption was 48.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 259.13 ms. Allocated memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: 37.7 MB). Free memory was 56.7 MB in the beginning and 105.5 MB in the end (delta: -48.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 187.22 ms. Allocated memory is still 140.5 MB. Free memory was 105.5 MB in the beginning and 94.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 7521.55 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 94.9 MB in the beginning and 132.7 MB in the end (delta: -37.7 MB). Peak memory consumption was 108.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 37121.04 ms. Allocated memory is still 203.4 MB. Free memory was 131.6 MB in the beginning and 94.7 MB in the end (delta: 36.9 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * Witness Printer took 7.09 ms. Allocated memory is still 203.4 MB. Free memory is still 94.7 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}, ={-1:8}, ={-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 = 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 [={-1:7}, ={-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++ 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 [={-1:7}, ={-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 [={-1:8}, ={-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 [={-1:7}, ={-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 [={-1:8}, ={-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}, ={-1:7}, ={-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 [={-1:7}, ={-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] 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}, ={-1:8}, ={-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 [={-1:8}, ={-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 [={-1:7}, ={-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 [={-1:7}, ={-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 [={-1:8}, ={-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 FALSE !(i < 10) 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}] [L2673] i = 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}] [L2673] COND TRUE i < 1 [L2674] tasklet_registered[i].tasklet = ((void *)0) [L2675] tasklet_registered[i].is_running = 0 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}] [L2673] 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}] [L2673] COND FALSE !(i < 1) 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}] [L1776] int ret; [L4482] return 0; 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}] [L12] COND TRUE !expression 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}] [L12] reach_error() 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}] - 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: 36.8s, 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: 0.2s SsaConstructionTime, 23.6s SatisfiabilityAnalysisTime, 1.2s 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 23:14:11,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35dfda09-2123-4356-b4e8-516c7f0f1337/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...