./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 e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be --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_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be --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-e943c26 [2021-10-21 19:05:25,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:05:25,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:05:25,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:05:25,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:05:25,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:05:25,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:05:25,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:05:25,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:05:25,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:05:25,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:05:25,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:05:25,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:05:25,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:05:25,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:05:25,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:05:25,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:05:25,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:05:25,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:05:25,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:05:25,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:05:25,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:05:25,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:05:25,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:05:25,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:05:25,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:05:25,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:05:25,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:05:25,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:05:25,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:05:25,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:05:25,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:05:25,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:05:25,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:05:25,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:05:25,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:05:25,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:05:25,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:05:25,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:05:25,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:05:25,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:05:25,800 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:05:25,846 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:05:25,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:05:25,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:05:25,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:05:25,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:05:25,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:05:25,849 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:05:25,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:05:25,849 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:05:25,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:05:25,850 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:05:25,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:05:25,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:05:25,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:05:25,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:05:25,851 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:05:25,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:05:25,851 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:05:25,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:05:25,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:05:25,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:05:25,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:05:25,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:05:25,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:05:25,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:05:25,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:05:25,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:05:25,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:05:25,854 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:05:25,854 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:05:25,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:05:25,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:05:25,855 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_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de [2021-10-21 19:05:26,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:05:26,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:05:26,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:05:26,120 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:05:26,120 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:05:26,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-10-21 19:05:26,204 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/data/46608ae21/18b91ed05b3743ec9ceb6305a46e5c34/FLAG0534ecc62 [2021-10-21 19:05:26,901 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:05:26,902 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-10-21 19:05:26,926 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/data/46608ae21/18b91ed05b3743ec9ceb6305a46e5c34/FLAG0534ecc62 [2021-10-21 19:05:27,151 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/data/46608ae21/18b91ed05b3743ec9ceb6305a46e5c34 [2021-10-21 19:05:27,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:05:27,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:05:27,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:05:27,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:05:27,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:05:27,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:05:27" (1/1) ... [2021-10-21 19:05:27,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa2216b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:27, skipping insertion in model container [2021-10-21 19:05:27,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:05:27" (1/1) ... [2021-10-21 19:05:27,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:05:27,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:05:27,453 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_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2021-10-21 19:05:28,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:05:28,579 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:05:28,591 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_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2021-10-21 19:05:28,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:05:29,037 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:05:29,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:29 WrapperNode [2021-10-21 19:05:29,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:05:29,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:05:29,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:05:29,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:05:29,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:29" (1/1) ... [2021-10-21 19:05:29,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:29" (1/1) ... [2021-10-21 19:05:29,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:05:29,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:05:29,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:05:29,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:05:29,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:29" (1/1) ... [2021-10-21 19:05:29,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:29" (1/1) ... [2021-10-21 19:05:29,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:29" (1/1) ... [2021-10-21 19:05:29,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:29" (1/1) ... [2021-10-21 19:05:29,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:29" (1/1) ... [2021-10-21 19:05:29,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:29" (1/1) ... [2021-10-21 19:05:29,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:29" (1/1) ... [2021-10-21 19:05:29,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:05:29,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:05:29,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:05:29,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:05:29,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:29" (1/1) ... [2021-10-21 19:05:29,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:05:29,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:29,543 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:29,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:05:29,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:05:29,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-10-21 19:05:29,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:05:29,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:05:29,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 19:05:29,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:05:29,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:05:29,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-21 19:05:29,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:05:29,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 19:05:29,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 19:05:29,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:05:29,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:05:33,265 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:05:33,265 INFO L299 CfgBuilder]: Removed 515 assume(true) statements. [2021-10-21 19:05:33,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:05:33 BoogieIcfgContainer [2021-10-21 19:05:33,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:05:33,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:05:33,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:05:33,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:05:33,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:05:27" (1/3) ... [2021-10-21 19:05:33,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21446578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:05:33, skipping insertion in model container [2021-10-21 19:05:33,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:29" (2/3) ... [2021-10-21 19:05:33,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21446578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:05:33, skipping insertion in model container [2021-10-21 19:05:33,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:05:33" (3/3) ... [2021-10-21 19:05:33,277 INFO L111 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw.i [2021-10-21 19:05:33,285 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:05:33,286 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-10-21 19:05:33,350 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:05:33,357 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 [2021-10-21 19:05:33,358 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-10-21 19:05:33,394 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) [2021-10-21 19:05:33,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 19:05:33,408 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:33,409 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:05:33,409 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)] === [2021-10-21 19:05:33,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:33,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1448150405, now seen corresponding path program 1 times [2021-10-21 19:05:33,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:33,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810614716] [2021-10-21 19:05:33,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:33,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:33,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:33,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:33,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810614716] [2021-10-21 19:05:33,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810614716] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:05:33,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:05:33,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:05:33,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559670449] [2021-10-21 19:05:33,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:05:33,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:33,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:05:33,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:05:33,983 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) [2021-10-21 19:05:34,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:34,034 INFO L93 Difference]: Finished difference Result 781 states and 1011 transitions. [2021-10-21 19:05:34,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:05:34,035 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 [2021-10-21 19:05:34,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:05:34,050 INFO L225 Difference]: With dead ends: 781 [2021-10-21 19:05:34,050 INFO L226 Difference]: Without dead ends: 376 [2021-10-21 19:05:34,055 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:05:34,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-10-21 19:05:34,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2021-10-21 19:05:34,108 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) [2021-10-21 19:05:34,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 471 transitions. [2021-10-21 19:05:34,112 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 471 transitions. Word has length 12 [2021-10-21 19:05:34,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:05:34,112 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 471 transitions. [2021-10-21 19:05:34,113 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) [2021-10-21 19:05:34,113 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 471 transitions. [2021-10-21 19:05:34,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 19:05:34,113 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:34,114 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:05:34,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:05:34,114 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)] === [2021-10-21 19:05:34,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:34,115 INFO L82 PathProgramCache]: Analyzing trace with hash 806641781, now seen corresponding path program 1 times [2021-10-21 19:05:34,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:34,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265560590] [2021-10-21 19:05:34,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:34,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:34,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:34,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:34,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265560590] [2021-10-21 19:05:34,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265560590] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:05:34,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:05:34,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:05:34,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373091027] [2021-10-21 19:05:34,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:05:34,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:34,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:05:34,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:05:34,235 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) [2021-10-21 19:05:34,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:34,307 INFO L93 Difference]: Finished difference Result 751 states and 942 transitions. [2021-10-21 19:05:34,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:05:34,313 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 [2021-10-21 19:05:34,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:05:34,320 INFO L225 Difference]: With dead ends: 751 [2021-10-21 19:05:34,320 INFO L226 Difference]: Without dead ends: 380 [2021-10-21 19:05:34,324 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:05:34,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2021-10-21 19:05:34,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 378. [2021-10-21 19:05:34,352 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) [2021-10-21 19:05:34,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 473 transitions. [2021-10-21 19:05:34,354 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 473 transitions. Word has length 12 [2021-10-21 19:05:34,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:05:34,354 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 473 transitions. [2021-10-21 19:05:34,355 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) [2021-10-21 19:05:34,355 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 473 transitions. [2021-10-21 19:05:34,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 19:05:34,391 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:34,391 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:05:34,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:05:34,392 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)] === [2021-10-21 19:05:34,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:34,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1115618639, now seen corresponding path program 1 times [2021-10-21 19:05:34,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:34,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410648033] [2021-10-21 19:05:34,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:34,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:34,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:05:34,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:34,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410648033] [2021-10-21 19:05:34,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410648033] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:34,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219115178] [2021-10-21 19:05:34,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:34,530 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:34,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:34,536 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:05:34,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:05:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:34,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:05:34,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:34,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:05:34,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219115178] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:34,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:05:34,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-21 19:05:34,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297102242] [2021-10-21 19:05:34,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:05:34,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:34,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:05:34,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:05:34,971 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) [2021-10-21 19:05:35,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:35,020 INFO L93 Difference]: Finished difference Result 754 states and 944 transitions. [2021-10-21 19:05:35,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:05:35,020 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 [2021-10-21 19:05:35,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:05:35,023 INFO L225 Difference]: With dead ends: 754 [2021-10-21 19:05:35,023 INFO L226 Difference]: Without dead ends: 382 [2021-10-21 19:05:35,024 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.0ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:05:35,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-10-21 19:05:35,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 380. [2021-10-21 19:05:35,037 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) [2021-10-21 19:05:35,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 475 transitions. [2021-10-21 19:05:35,039 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 475 transitions. Word has length 16 [2021-10-21 19:05:35,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:05:35,040 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 475 transitions. [2021-10-21 19:05:35,040 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) [2021-10-21 19:05:35,040 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 475 transitions. [2021-10-21 19:05:35,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-21 19:05:35,041 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:35,041 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:05:35,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:35,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:35,268 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)] === [2021-10-21 19:05:35,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:35,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1218920273, now seen corresponding path program 2 times [2021-10-21 19:05:35,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:35,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390810429] [2021-10-21 19:05:35,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:35,269 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:35,449 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:05:35,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:35,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390810429] [2021-10-21 19:05:35,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390810429] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:35,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015899737] [2021-10-21 19:05:35,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:05:35,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:35,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:35,456 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:05:35,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 19:05:37,350 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:05:37,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:05:37,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:05:37,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:37,468 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:05:37,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015899737] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:37,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:05:37,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-21 19:05:37,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807142348] [2021-10-21 19:05:37,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:05:37,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:37,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:05:37,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:05:37,471 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) [2021-10-21 19:05:37,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:37,525 INFO L93 Difference]: Finished difference Result 756 states and 946 transitions. [2021-10-21 19:05:37,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:05:37,525 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 [2021-10-21 19:05:37,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:05:37,528 INFO L225 Difference]: With dead ends: 756 [2021-10-21 19:05:37,528 INFO L226 Difference]: Without dead ends: 384 [2021-10-21 19:05:37,529 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 14.2ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:05:37,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-10-21 19:05:37,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 382. [2021-10-21 19:05:37,540 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) [2021-10-21 19:05:37,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 477 transitions. [2021-10-21 19:05:37,542 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 477 transitions. Word has length 18 [2021-10-21 19:05:37,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:05:37,542 INFO L470 AbstractCegarLoop]: Abstraction has 382 states and 477 transitions. [2021-10-21 19:05:37,543 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) [2021-10-21 19:05:37,543 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 477 transitions. [2021-10-21 19:05:37,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-21 19:05:37,544 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:37,544 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:05:37,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:37,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:37,772 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)] === [2021-10-21 19:05:37,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:37,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1707542739, now seen corresponding path program 3 times [2021-10-21 19:05:37,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:37,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713887504] [2021-10-21 19:05:37,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:37,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:37,943 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:05:37,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:37,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713887504] [2021-10-21 19:05:37,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713887504] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:37,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590535872] [2021-10-21 19:05:37,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:05:37,944 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:37,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:37,945 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:05:37,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 19:05:42,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-21 19:05:42,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:05:42,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:05:42,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:42,544 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:05:42,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590535872] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:42,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:05:42,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-21 19:05:42,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177989388] [2021-10-21 19:05:42,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:05:42,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:42,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:05:42,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:05:42,547 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) [2021-10-21 19:05:42,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:42,601 INFO L93 Difference]: Finished difference Result 758 states and 948 transitions. [2021-10-21 19:05:42,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:05:42,601 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 [2021-10-21 19:05:42,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:05:42,605 INFO L225 Difference]: With dead ends: 758 [2021-10-21 19:05:42,605 INFO L226 Difference]: Without dead ends: 386 [2021-10-21 19:05:42,606 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 22.6ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:05:42,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2021-10-21 19:05:42,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 384. [2021-10-21 19:05:42,619 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) [2021-10-21 19:05:42,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 479 transitions. [2021-10-21 19:05:42,621 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 479 transitions. Word has length 20 [2021-10-21 19:05:42,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:05:42,622 INFO L470 AbstractCegarLoop]: Abstraction has 384 states and 479 transitions. [2021-10-21 19:05:42,622 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) [2021-10-21 19:05:42,622 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 479 transitions. [2021-10-21 19:05:42,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-21 19:05:42,623 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:42,623 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:05:42,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:42,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:42,848 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)] === [2021-10-21 19:05:42,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:42,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1172669995, now seen corresponding path program 4 times [2021-10-21 19:05:42,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:42,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625941594] [2021-10-21 19:05:42,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:42,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:43,022 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:05:43,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:43,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625941594] [2021-10-21 19:05:43,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625941594] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:43,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883829537] [2021-10-21 19:05:43,023 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:05:43,023 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:43,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:43,024 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:05:43,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 19:05:43,214 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:05:43,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:05:43,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:05:43,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:43,281 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:05:43,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883829537] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:43,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:05:43,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-21 19:05:43,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434002750] [2021-10-21 19:05:43,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:05:43,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:43,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:05:43,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:05:43,287 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) [2021-10-21 19:05:43,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:43,347 INFO L93 Difference]: Finished difference Result 760 states and 950 transitions. [2021-10-21 19:05:43,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:05:43,347 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 [2021-10-21 19:05:43,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:05:43,350 INFO L225 Difference]: With dead ends: 760 [2021-10-21 19:05:43,350 INFO L226 Difference]: Without dead ends: 388 [2021-10-21 19:05:43,351 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 20.5ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:05:43,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-10-21 19:05:43,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 386. [2021-10-21 19:05:43,361 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) [2021-10-21 19:05:43,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 481 transitions. [2021-10-21 19:05:43,363 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 481 transitions. Word has length 22 [2021-10-21 19:05:43,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:05:43,363 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 481 transitions. [2021-10-21 19:05:43,363 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) [2021-10-21 19:05:43,363 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 481 transitions. [2021-10-21 19:05:43,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-21 19:05:43,365 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:43,365 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:05:43,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:43,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:43,580 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)] === [2021-10-21 19:05:43,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:43,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1196798551, now seen corresponding path program 5 times [2021-10-21 19:05:43,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:43,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821416502] [2021-10-21 19:05:43,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:43,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:43,762 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:05:43,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:43,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821416502] [2021-10-21 19:05:43,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821416502] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:43,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401500555] [2021-10-21 19:05:43,763 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:05:43,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:43,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:43,764 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:05:43,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-21 19:05:44,118 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-21 19:05:44,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:05:44,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:05:44,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:44,209 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:05:44,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401500555] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:44,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:05:44,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-10-21 19:05:44,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549556822] [2021-10-21 19:05:44,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:05:44,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:44,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:05:44,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:05:44,211 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) [2021-10-21 19:05:44,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:44,281 INFO L93 Difference]: Finished difference Result 762 states and 952 transitions. [2021-10-21 19:05:44,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:05:44,282 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 [2021-10-21 19:05:44,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:05:44,284 INFO L225 Difference]: With dead ends: 762 [2021-10-21 19:05:44,285 INFO L226 Difference]: Without dead ends: 390 [2021-10-21 19:05:44,285 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 32.8ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:05:44,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-10-21 19:05:44,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 388. [2021-10-21 19:05:44,294 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) [2021-10-21 19:05:44,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 483 transitions. [2021-10-21 19:05:44,298 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 483 transitions. Word has length 24 [2021-10-21 19:05:44,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:05:44,298 INFO L470 AbstractCegarLoop]: Abstraction has 388 states and 483 transitions. [2021-10-21 19:05:44,299 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) [2021-10-21 19:05:44,299 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 483 transitions. [2021-10-21 19:05:44,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-21 19:05:44,302 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:44,302 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:05:44,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:44,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:44,516 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)] === [2021-10-21 19:05:44,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:44,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1923404377, now seen corresponding path program 6 times [2021-10-21 19:05:44,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:44,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282604482] [2021-10-21 19:05:44,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:44,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:44,653 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:05:44,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:44,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282604482] [2021-10-21 19:05:44,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282604482] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:44,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546489018] [2021-10-21 19:05:44,654 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:05:44,654 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:44,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:44,658 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:05:44,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-21 19:05:57,839 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-10-21 19:05:57,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:05:57,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:05:57,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:57,971 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:05:57,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546489018] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:57,972 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:05:57,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-10-21 19:05:57,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080863811] [2021-10-21 19:05:57,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:05:57,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:57,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:05:57,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:05:57,974 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) [2021-10-21 19:05:58,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:58,042 INFO L93 Difference]: Finished difference Result 764 states and 954 transitions. [2021-10-21 19:05:58,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:05:58,043 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 [2021-10-21 19:05:58,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:05:58,045 INFO L225 Difference]: With dead ends: 764 [2021-10-21 19:05:58,046 INFO L226 Difference]: Without dead ends: 392 [2021-10-21 19:05:58,047 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 39.5ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:05:58,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2021-10-21 19:05:58,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 390. [2021-10-21 19:05:58,056 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) [2021-10-21 19:05:58,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 485 transitions. [2021-10-21 19:05:58,058 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 485 transitions. Word has length 26 [2021-10-21 19:05:58,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:05:58,058 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 485 transitions. [2021-10-21 19:05:58,059 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) [2021-10-21 19:05:58,059 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 485 transitions. [2021-10-21 19:05:58,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-21 19:05:58,060 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:58,060 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:05:58,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:58,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-21 19:05:58,276 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)] === [2021-10-21 19:05:58,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:58,276 INFO L82 PathProgramCache]: Analyzing trace with hash -111933915, now seen corresponding path program 7 times [2021-10-21 19:05:58,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:58,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325728857] [2021-10-21 19:05:58,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:58,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:58,505 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:05:58,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:58,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325728857] [2021-10-21 19:05:58,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325728857] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:58,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190250536] [2021-10-21 19:05:58,506 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:05:58,507 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:58,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:58,508 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:05:58,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-21 19:05:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:58,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 19:05:58,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:58,886 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:05:58,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190250536] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:58,886 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:05:58,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-10-21 19:05:58,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482794907] [2021-10-21 19:05:58,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-21 19:05:58,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:58,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-21 19:05:58,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-21 19:05:58,888 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) [2021-10-21 19:05:58,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:58,966 INFO L93 Difference]: Finished difference Result 766 states and 956 transitions. [2021-10-21 19:05:58,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 19:05:58,966 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 [2021-10-21 19:05:58,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:05:58,969 INFO L225 Difference]: With dead ends: 766 [2021-10-21 19:05:58,969 INFO L226 Difference]: Without dead ends: 394 [2021-10-21 19:05:58,970 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 47.7ms TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-21 19:05:58,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-10-21 19:05:58,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 392. [2021-10-21 19:05:58,980 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) [2021-10-21 19:05:58,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 487 transitions. [2021-10-21 19:05:58,981 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 487 transitions. Word has length 28 [2021-10-21 19:05:58,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:05:58,982 INFO L470 AbstractCegarLoop]: Abstraction has 392 states and 487 transitions. [2021-10-21 19:05:58,982 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) [2021-10-21 19:05:58,982 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 487 transitions. [2021-10-21 19:05:58,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-21 19:05:58,983 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:58,983 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:05:59,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:59,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:59,196 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)] === [2021-10-21 19:05:59,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:59,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1249425187, now seen corresponding path program 8 times [2021-10-21 19:05:59,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:59,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139062995] [2021-10-21 19:05:59,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:59,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:59,383 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:05:59,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:59,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139062995] [2021-10-21 19:05:59,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139062995] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:59,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031205889] [2021-10-21 19:05:59,384 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:05:59,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:59,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:59,385 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:05:59,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-21 19:06:01,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:06:01,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:06:01,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 19:06:01,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:01,363 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:06:01,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031205889] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:01,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:01,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-10-21 19:06:01,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688318071] [2021-10-21 19:06:01,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-21 19:06:01,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:01,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 19:06:01,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:06:01,366 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) [2021-10-21 19:06:01,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:01,457 INFO L93 Difference]: Finished difference Result 768 states and 958 transitions. [2021-10-21 19:06:01,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:06:01,458 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 [2021-10-21 19:06:01,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:01,461 INFO L225 Difference]: With dead ends: 768 [2021-10-21 19:06:01,461 INFO L226 Difference]: Without dead ends: 396 [2021-10-21 19:06:01,462 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 55.9ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:06:01,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-10-21 19:06:01,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 394. [2021-10-21 19:06:01,472 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) [2021-10-21 19:06:01,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 489 transitions. [2021-10-21 19:06:01,473 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 489 transitions. Word has length 30 [2021-10-21 19:06:01,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:01,474 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 489 transitions. [2021-10-21 19:06:01,474 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) [2021-10-21 19:06:01,474 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 489 transitions. [2021-10-21 19:06:01,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-21 19:06:01,477 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:01,477 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:01,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:01,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:01,704 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)] === [2021-10-21 19:06:01,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:01,704 INFO L82 PathProgramCache]: Analyzing trace with hash -449503071, now seen corresponding path program 9 times [2021-10-21 19:06:01,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:01,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659033350] [2021-10-21 19:06:01,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:01,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:01,932 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:06:01,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:01,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659033350] [2021-10-21 19:06:01,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659033350] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:01,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238060692] [2021-10-21 19:06:01,933 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:06:01,933 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:01,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:01,940 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:01,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-21 19:06:18,576 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-10-21 19:06:18,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:06:18,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 19:06:18,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:18,743 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:06:18,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238060692] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:18,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:18,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-10-21 19:06:18,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314807447] [2021-10-21 19:06:18,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-21 19:06:18,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:18,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-21 19:06:18,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:06:18,746 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) [2021-10-21 19:06:18,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:18,830 INFO L93 Difference]: Finished difference Result 769 states and 959 transitions. [2021-10-21 19:06:18,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 19:06:18,831 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 [2021-10-21 19:06:18,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:18,833 INFO L225 Difference]: With dead ends: 769 [2021-10-21 19:06:18,833 INFO L226 Difference]: Without dead ends: 397 [2021-10-21 19:06:18,834 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 69.9ms TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:06:18,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2021-10-21 19:06:18,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 396. [2021-10-21 19:06:18,844 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) [2021-10-21 19:06:18,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 491 transitions. [2021-10-21 19:06:18,846 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 491 transitions. Word has length 32 [2021-10-21 19:06:18,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:18,847 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 491 transitions. [2021-10-21 19:06:18,847 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) [2021-10-21 19:06:18,847 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 491 transitions. [2021-10-21 19:06:18,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-21 19:06:18,848 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:18,848 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:18,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:19,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-21 19:06:19,064 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)] === [2021-10-21 19:06:19,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:19,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1031986529, now seen corresponding path program 10 times [2021-10-21 19:06:19,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:19,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700429980] [2021-10-21 19:06:19,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:19,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:19,668 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:20,157 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:20,157 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:06:20,158 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:06:20,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:06:20,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:06:20,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:06:20,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:06:20,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:06:20,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:06:20,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:06:20,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:06:20,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-21 19:06:20,169 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:06:20,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:06:20 BoogieIcfgContainer [2021-10-21 19:06:20,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:06:20,358 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:06:20,358 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:06:20,358 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:06:20,359 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:05:33" (3/4) ... [2021-10-21 19:06:20,362 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:06:20,362 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:06:20,363 INFO L168 Benchmark]: Toolchain (without parser) took 53207.34 ms. Allocated memory was 98.6 MB in the beginning and 255.9 MB in the end (delta: 157.3 MB). Free memory was 73.2 MB in the beginning and 103.9 MB in the end (delta: -30.7 MB). Peak memory consumption was 124.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:20,364 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 98.6 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:06:20,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1882.68 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 72.9 MB in the beginning and 75.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 49.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:20,365 INFO L168 Benchmark]: Boogie Procedure Inliner took 277.83 ms. Allocated memory is still 119.5 MB. Free memory was 75.9 MB in the beginning and 62.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:20,365 INFO L168 Benchmark]: Boogie Preprocessor took 184.87 ms. Allocated memory is still 119.5 MB. Free memory was 62.7 MB in the beginning and 53.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:20,366 INFO L168 Benchmark]: RCFGBuilder took 3765.21 ms. Allocated memory was 119.5 MB in the beginning and 211.8 MB in the end (delta: 92.3 MB). Free memory was 53.6 MB in the beginning and 125.2 MB in the end (delta: -71.6 MB). Peak memory consumption was 85.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:20,366 INFO L168 Benchmark]: TraceAbstraction took 47086.86 ms. Allocated memory was 211.8 MB in the beginning and 255.9 MB in the end (delta: 44.0 MB). Free memory was 125.2 MB in the beginning and 103.9 MB in the end (delta: 21.3 MB). Peak memory consumption was 111.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:20,366 INFO L168 Benchmark]: Witness Printer took 3.76 ms. Allocated memory is still 255.9 MB. Free memory is still 103.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:06:20,368 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 98.6 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1882.68 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 72.9 MB in the beginning and 75.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 49.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 277.83 ms. Allocated memory is still 119.5 MB. Free memory was 75.9 MB in the beginning and 62.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 184.87 ms. Allocated memory is still 119.5 MB. Free memory was 62.7 MB in the beginning and 53.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3765.21 ms. Allocated memory was 119.5 MB in the beginning and 211.8 MB in the end (delta: 92.3 MB). Free memory was 53.6 MB in the beginning and 125.2 MB in the end (delta: -71.6 MB). Peak memory consumption was 85.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 47086.86 ms. Allocated memory was 211.8 MB in the beginning and 255.9 MB in the end (delta: 44.0 MB). Free memory was 125.2 MB in the beginning and 103.9 MB in the end (delta: 21.3 MB). Peak memory consumption was 111.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.76 ms. Allocated memory is still 255.9 MB. Free memory is still 103.9 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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 [={-1:8}, ={0:0}, ={0:0}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=0, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L1850] _ddv_module_init = zf_init [L1851] _ddv_module_exit = zf_exit [L2725] int err; [L2727] current_execution_context = 1 [L2665] int i; [L4155] lock->init = 1 [L4156] lock->locked = 0 VAL [={-1:7}, ={-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 = 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] 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 [={-1:7}, ={-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}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-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}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] i++ VAL [={-1:8}, ={-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}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] i++ VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] i++ VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-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 [={-1:7}, ={-1:8}, ={-1:8}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2669] i++ VAL [={-1:8}, ={-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 FALSE !(i < 10) VAL [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2673] i = 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}] [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={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2673] i++ VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L2673] COND FALSE !(i < 1) VAL [={-1:8}, ={-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 [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={98:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={97:0}, fixed_cdev_used=0, fixed_gendisk={91:0}, fixed_request_queue={87:0}, genhd_registered={101:0}, global_tty_driver={81:0}, jiffies=0, kernel_lock={49:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={46:0}, registered_pci_driver={95:0}, shared_workqueue={66:0}, tasklet_registered={86:0}, timer_registered={63:0}, zf_action=2048, zf_expect_close=0, zf_fops={96:0}, zf_info={68:0}, zf_is_open={52:0}, zf_lock={47:0}, zf_miscdev={74:0}, zf_notifier={57:0}, zf_port_lock={94:0}, zf_timer={41:0}] [L12] COND TRUE !expression 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}] [L12] reach_error() 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}] - 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: 46820.1ms, OverallIterations: 12, TraceHistogramMax: 10, EmptinessCheckTime: 72.9ms, AutomataDifference: 836.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 26.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5150 SDtfs, 6554 SDslu, 6023 SDs, 0 SdLazy, 260 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 334.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 321.7ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 183.3ms AutomataMinimizationTime, 11 MinimizatonAttempts, 19 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 427.0ms SsaConstructionTime, 38862.8ms SatisfiabilityAnalysisTime, 2168.4ms 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 [2021-10-21 19:06:20,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/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-e943c26 [2021-10-21 19:06:22,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:06:22,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:06:22,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-21 19:06:22,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:06:22,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:06:22,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:06:22,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:06:22,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:06:22,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:06:22,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:06:22,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:06:22,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:06:22,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:06:22,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:06:22,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:06:22,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-21 19:06:22,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:06:22,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:06:22,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:06:22,852 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-21 19:06:22,895 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:06:22,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:06:22,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:06:22,896 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:06:22,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:06:22,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:06:22,898 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:06:22,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:06:22,898 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:06:22,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:06:22,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:06:22,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:06:22,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:06:22,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:06:22,900 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:06:22,900 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:06:22,900 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:06:22,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:06:22,901 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:06:22,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:06:22,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:06:22,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:06:22,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:06:22,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:06:22,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:06:22,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:06:22,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:06:22,903 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:06:22,903 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:06:22,903 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:06:22,903 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:06:22,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:06:22,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:06:22,904 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:06:22,904 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_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de [2021-10-21 19:06:23,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:06:23,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:06:23,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:06:23,288 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:06:23,288 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:06:23,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-10-21 19:06:23,359 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/data/161b0864f/8260cdc0a4af48a6920d4b81e1bc9b06/FLAGfd1abaab3 [2021-10-21 19:06:24,093 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:06:24,098 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-10-21 19:06:24,138 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/data/161b0864f/8260cdc0a4af48a6920d4b81e1bc9b06/FLAGfd1abaab3 [2021-10-21 19:06:24,348 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/data/161b0864f/8260cdc0a4af48a6920d4b81e1bc9b06 [2021-10-21 19:06:24,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:06:24,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:06:24,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:06:24,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:06:24,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:06:24,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:06:24" (1/1) ... [2021-10-21 19:06:24,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@106e07ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:24, skipping insertion in model container [2021-10-21 19:06:24,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:06:24" (1/1) ... [2021-10-21 19:06:24,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:06:24,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:06:24,694 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_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2021-10-21 19:06:25,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:06:25,872 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:06:25,887 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_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i[452,465] [2021-10-21 19:06:26,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:06:26,341 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:06:26,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26 WrapperNode [2021-10-21 19:06:26,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:06:26,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:06:26,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:06:26,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:06:26,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:06:26,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:06:26,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:06:26,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:06:26,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:06:26,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:06:26,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:06:26,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:06:26,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,765 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:06:26,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:26,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:26,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:06:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:06:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-10-21 19:06:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 19:06:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-21 19:06:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:06:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 19:06:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:06:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:06:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-10-21 19:06:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 19:06:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-10-21 19:06:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-21 19:06:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:06:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 19:06:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-10-21 19:06:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-21 19:06:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-10-21 19:06:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 19:06:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 19:06:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-21 19:06:33,148 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:06:33,148 INFO L299 CfgBuilder]: Removed 515 assume(true) statements. [2021-10-21 19:06:33,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:06:33 BoogieIcfgContainer [2021-10-21 19:06:33,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:06:33,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:06:33,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:06:33,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:06:33,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:06:24" (1/3) ... [2021-10-21 19:06:33,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc4947d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:06:33, skipping insertion in model container [2021-10-21 19:06:33,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (2/3) ... [2021-10-21 19:06:33,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc4947d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:06:33, skipping insertion in model container [2021-10-21 19:06:33,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:06:33" (3/3) ... [2021-10-21 19:06:33,158 INFO L111 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw.i [2021-10-21 19:06:33,163 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:06:33,164 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-10-21 19:06:33,212 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:06:33,218 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 [2021-10-21 19:06:33,219 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-10-21 19:06:33,242 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) [2021-10-21 19:06:33,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 19:06:33,246 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:33,247 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:33,248 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)] === [2021-10-21 19:06:33,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:33,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1448150405, now seen corresponding path program 1 times [2021-10-21 19:06:33,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:06:33,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480069970] [2021-10-21 19:06:33,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:33,269 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:06:33,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:06:33,272 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:06:33,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:06:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:33,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-21 19:06:33,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:33,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:33,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:06:33,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:33,981 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:06:33,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480069970] [2021-10-21 19:06:33,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480069970] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:06:33,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:06:33,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:06:33,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504623183] [2021-10-21 19:06:33,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:06:33,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:06:33,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:06:34,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:06:34,004 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) [2021-10-21 19:06:34,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:34,067 INFO L93 Difference]: Finished difference Result 781 states and 1011 transitions. [2021-10-21 19:06:34,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:06:34,069 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 [2021-10-21 19:06:34,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:34,091 INFO L225 Difference]: With dead ends: 781 [2021-10-21 19:06:34,092 INFO L226 Difference]: Without dead ends: 376 [2021-10-21 19:06:34,100 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:06:34,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-10-21 19:06:34,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2021-10-21 19:06:34,180 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) [2021-10-21 19:06:34,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 471 transitions. [2021-10-21 19:06:34,189 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 471 transitions. Word has length 12 [2021-10-21 19:06:34,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:34,189 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 471 transitions. [2021-10-21 19:06:34,190 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) [2021-10-21 19:06:34,190 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 471 transitions. [2021-10-21 19:06:34,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 19:06:34,191 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:34,191 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:34,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:34,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:06:34,406 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)] === [2021-10-21 19:06:34,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:34,407 INFO L82 PathProgramCache]: Analyzing trace with hash 806641781, now seen corresponding path program 1 times [2021-10-21 19:06:34,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:06:34,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527472354] [2021-10-21 19:06:34,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:34,409 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:06:34,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:06:34,410 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:06:34,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:06:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:34,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:06:34,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:34,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:34,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:06:34,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:34,895 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:06:34,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527472354] [2021-10-21 19:06:34,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527472354] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:06:34,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:06:34,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-21 19:06:34,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743363947] [2021-10-21 19:06:34,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:06:34,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:06:34,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:06:34,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:06:34,899 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) [2021-10-21 19:06:35,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:35,039 INFO L93 Difference]: Finished difference Result 1121 states and 1407 transitions. [2021-10-21 19:06:35,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:06:35,040 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 [2021-10-21 19:06:35,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:35,044 INFO L225 Difference]: With dead ends: 1121 [2021-10-21 19:06:35,045 INFO L226 Difference]: Without dead ends: 750 [2021-10-21 19:06:35,046 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:06:35,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2021-10-21 19:06:35,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 380. [2021-10-21 19:06:35,060 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) [2021-10-21 19:06:35,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 475 transitions. [2021-10-21 19:06:35,062 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 475 transitions. Word has length 12 [2021-10-21 19:06:35,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:35,063 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 475 transitions. [2021-10-21 19:06:35,063 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) [2021-10-21 19:06:35,063 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 475 transitions. [2021-10-21 19:06:35,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-21 19:06:35,064 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:35,064 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:35,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:35,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:06:35,284 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)] === [2021-10-21 19:06:35,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:35,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1218920273, now seen corresponding path program 1 times [2021-10-21 19:06:35,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:06:35,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040739803] [2021-10-21 19:06:35,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:35,287 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:06:35,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:06:35,289 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:06:35,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:06:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:35,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:06:35,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:35,876 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:06:35,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:06:35,979 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:06:35,979 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:06:35,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040739803] [2021-10-21 19:06:35,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040739803] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 19:06:35,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:35,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-10-21 19:06:35,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167106005] [2021-10-21 19:06:35,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:06:35,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:06:35,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:06:35,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:06:35,982 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) [2021-10-21 19:06:36,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:36,299 INFO L93 Difference]: Finished difference Result 760 states and 953 transitions. [2021-10-21 19:06:36,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:06:36,307 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 [2021-10-21 19:06:36,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:36,310 INFO L225 Difference]: With dead ends: 760 [2021-10-21 19:06:36,310 INFO L226 Difference]: Without dead ends: 388 [2021-10-21 19:06:36,311 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 101.0ms TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:06:36,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-10-21 19:06:36,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2021-10-21 19:06:36,328 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) [2021-10-21 19:06:36,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 482 transitions. [2021-10-21 19:06:36,334 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 482 transitions. Word has length 18 [2021-10-21 19:06:36,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:36,334 INFO L470 AbstractCegarLoop]: Abstraction has 388 states and 482 transitions. [2021-10-21 19:06:36,334 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) [2021-10-21 19:06:36,335 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 482 transitions. [2021-10-21 19:06:36,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-21 19:06:36,336 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:36,336 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:36,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:36,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:06:36,550 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)] === [2021-10-21 19:06:36,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:36,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1923404377, now seen corresponding path program 2 times [2021-10-21 19:06:36,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:06:36,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83130437] [2021-10-21 19:06:36,553 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:06:36,553 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:06:36,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:06:36,556 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:06:36,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 19:06:42,314 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:06:42,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:06:42,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:06:42,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:42,549 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:06:42,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:06:42,845 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:06:42,845 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:06:42,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83130437] [2021-10-21 19:06:42,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83130437] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 19:06:42,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:42,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-10-21 19:06:42,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828972250] [2021-10-21 19:06:42,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-21 19:06:42,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:06:42,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-21 19:06:42,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-10-21 19:06:42,847 INFO L87 Difference]: Start difference. First operand 388 states and 482 transitions. Second operand has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:43,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:43,544 INFO L93 Difference]: Finished difference Result 768 states and 959 transitions. [2021-10-21 19:06:43,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:06:43,545 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 [2021-10-21 19:06:43,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:43,548 INFO L225 Difference]: With dead ends: 768 [2021-10-21 19:06:43,548 INFO L226 Difference]: Without dead ends: 396 [2021-10-21 19:06:43,549 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 280.9ms TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-10-21 19:06:43,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-10-21 19:06:43,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2021-10-21 19:06:43,560 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) [2021-10-21 19:06:43,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 490 transitions. [2021-10-21 19:06:43,562 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 490 transitions. Word has length 26 [2021-10-21 19:06:43,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:43,563 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 490 transitions. [2021-10-21 19:06:43,563 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) [2021-10-21 19:06:43,563 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 490 transitions. [2021-10-21 19:06:43,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-21 19:06:43,564 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:43,565 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:43,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:43,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:06:43,788 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)] === [2021-10-21 19:06:43,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:43,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1031986529, now seen corresponding path program 3 times [2021-10-21 19:06:43,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:06:43,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695138178] [2021-10-21 19:06:43,790 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:06:43,790 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:06:43,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:06:43,791 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:06:43,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 19:06:57,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-10-21 19:06:57,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-21 19:06:57,544 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:07:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:07:04,166 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-21 19:07:04,167 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:07:04,168 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:07:04,170 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:07:04,170 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:07:04,171 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:07:04,171 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:07:04,171 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:07:04,171 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:07:04,172 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:07:04,172 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:07:04,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:07:04,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:07:04,401 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:07:04,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:07:04 BoogieIcfgContainer [2021-10-21 19:07:04,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:07:04,649 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:07:04,649 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:07:04,649 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:07:04,650 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:06:33" (3/4) ... [2021-10-21 19:07:04,653 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:07:04,653 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:07:04,655 INFO L168 Benchmark]: Toolchain (without parser) took 40290.48 ms. Allocated memory was 73.4 MB in the beginning and 176.2 MB in the end (delta: 102.8 MB). Free memory was 54.0 MB in the beginning and 100.3 MB in the end (delta: -46.2 MB). Peak memory consumption was 56.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:07:04,655 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 73.4 MB. Free memory was 55.1 MB in the beginning and 55.1 MB in the end (delta: 63.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:07:04,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1977.75 ms. Allocated memory was 73.4 MB in the beginning and 90.2 MB in the end (delta: 16.8 MB). Free memory was 53.8 MB in the beginning and 53.0 MB in the end (delta: 809.0 kB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:07:04,656 INFO L168 Benchmark]: Boogie Procedure Inliner took 252.92 ms. Allocated memory is still 90.2 MB. Free memory was 53.0 MB in the beginning and 40.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:07:04,657 INFO L168 Benchmark]: Boogie Preprocessor took 157.62 ms. Allocated memory is still 90.2 MB. Free memory was 40.1 MB in the beginning and 51.0 MB in the end (delta: -10.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:07:04,658 INFO L168 Benchmark]: RCFGBuilder took 6396.39 ms. Allocated memory was 90.2 MB in the beginning and 146.8 MB in the end (delta: 56.6 MB). Free memory was 51.0 MB in the beginning and 55.2 MB in the end (delta: -4.2 MB). Peak memory consumption was 62.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:07:04,658 INFO L168 Benchmark]: TraceAbstraction took 31495.38 ms. Allocated memory was 146.8 MB in the beginning and 176.2 MB in the end (delta: 29.4 MB). Free memory was 55.2 MB in the beginning and 100.3 MB in the end (delta: -45.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:07:04,659 INFO L168 Benchmark]: Witness Printer took 4.39 ms. Allocated memory is still 176.2 MB. Free memory is still 100.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:07:04,662 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 73.4 MB. Free memory was 55.1 MB in the beginning and 55.1 MB in the end (delta: 63.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1977.75 ms. Allocated memory was 73.4 MB in the beginning and 90.2 MB in the end (delta: 16.8 MB). Free memory was 53.8 MB in the beginning and 53.0 MB in the end (delta: 809.0 kB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 252.92 ms. Allocated memory is still 90.2 MB. Free memory was 53.0 MB in the beginning and 40.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 157.62 ms. Allocated memory is still 90.2 MB. Free memory was 40.1 MB in the beginning and 51.0 MB in the end (delta: -10.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 6396.39 ms. Allocated memory was 90.2 MB in the beginning and 146.8 MB in the end (delta: 56.6 MB). Free memory was 51.0 MB in the beginning and 55.2 MB in the end (delta: -4.2 MB). Peak memory consumption was 62.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 31495.38 ms. Allocated memory was 146.8 MB in the beginning and 176.2 MB in the end (delta: 29.4 MB). Free memory was 55.2 MB in the beginning and 100.3 MB in the end (delta: -45.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.39 ms. Allocated memory is still 176.2 MB. Free memory is still 100.3 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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 [={-1:7}, ={-1:8}, ={0:0}, ={0:0}, 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 [={-1:8}, ={-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 = 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] 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 [={-1:7}, ={-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 [={-1:7}, ={-1:8}, ={-1:7}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] i++ VAL [={-1:8}, ={-1:8}, ={-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}, ={-1:7}, ={-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 [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] i++ VAL [={-1:8}, ={-1:8}, ={-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 [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:8}, ={-1:8}, ={-1:7}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] i++ VAL [={-1:7}, ={-1:7}, ={-1:8}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] COND TRUE i < 10 [L2670] shared_workqueue[i] = ((void *)0) VAL [={-1:7}, ={-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 [={-1:8}, ={-1:7}, ={-1:7}, ={-1:8}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2669] i++ VAL [={-1:7}, ={-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 FALSE !(i < 10) 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] i = 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}] [L2673] COND TRUE i < 1 [L2674] tasklet_registered[i].tasklet = ((void *)0) [L2675] tasklet_registered[i].is_running = 0 VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2673] i++ VAL [={-1:8}, ={-1:7}, ={-1:8}, ={-1:7}, action=0, cdev_registered={808454171:0}, current_execution_context=1, ddv_ioport_request_len=0, ddv_ioport_request_start=0, fixed_cdev={-1882196156:0}, fixed_cdev_used=0, fixed_gendisk={265287490:0}, fixed_request_queue={-1915748541:0}, genhd_registered={399505226:0}, global_tty_driver={-2016413886:0}, jiffies=0, kernel_lock={825231386:0}, next_heartbeat=0, nowayout=0, number_cdev_registered=0, number_fixed_genhd_used=0, number_genhd_registered=0, number_request_queue_used=0, number_tasklet_registered=0, number_timer_registered=0, proc_root_driver={0:0}, registered_irq={-1882196217:0}, registered_pci_driver={-1882196218:0}, shared_workqueue={-2016413870:0}, tasklet_registered={-1882195992:0}, timer_registered={667940686:0}, zf_action=2048, zf_expect_close=0, zf_fops={-2016413868:0}, zf_info={265287510:0}, zf_is_open={-1882196394:0}, zf_lock={-1882196032:0}, zf_miscdev={-1882196138:0}, zf_notifier={-1882196159:0}, zf_port_lock={-1882196153:0}, zf_timer={-1882196220:0}] [L2673] COND FALSE !(i < 1) 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}] [L1776] int ret; [L4482] return 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}] [L12] COND TRUE !expression 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] reach_error() 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}] - 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: 31189.2ms, OverallIterations: 5, TraceHistogramMax: 10, EmptinessCheckTime: 14.0ms, AutomataDifference: 1290.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 17.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1887 SDtfs, 4185 SDslu, 4624 SDs, 0 SdLazy, 224 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 767.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 132 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 392.4ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 127.7ms AutomataMinimizationTime, 4 MinimizatonAttempts, 370 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 188.9ms SsaConstructionTime, 19926.2ms SatisfiabilityAnalysisTime, 1017.6ms 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 [2021-10-21 19:07:04,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab10d229-57cf-45c9-a89b-ca3c698c1cc8/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...