./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3 --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 bef6e9194447b24677d0088ba0b7766a25273d0b ........................................................................................................................................................................................................................................................................................................................ 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_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3 --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 bef6e9194447b24677d0088ba0b7766a25273d0b ........................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 20:10:14,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 20:10:14,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 20:10:15,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 20:10:15,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 20:10:15,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 20:10:15,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 20:10:15,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 20:10:15,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 20:10:15,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 20:10:15,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 20:10:15,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 20:10:15,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 20:10:15,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 20:10:15,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 20:10:15,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 20:10:15,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 20:10:15,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 20:10:15,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 20:10:15,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 20:10:15,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 20:10:15,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 20:10:15,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 20:10:15,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 20:10:15,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 20:10:15,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 20:10:15,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 20:10:15,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 20:10:15,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 20:10:15,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 20:10:15,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 20:10:15,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 20:10:15,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 20:10:15,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 20:10:15,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 20:10:15,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 20:10:15,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 20:10:15,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 20:10:15,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 20:10:15,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 20:10:15,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 20:10:15,085 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 20:10:15,116 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 20:10:15,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 20:10:15,120 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 20:10:15,121 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 20:10:15,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 20:10:15,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 20:10:15,123 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 20:10:15,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 20:10:15,124 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 20:10:15,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 20:10:15,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 20:10:15,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 20:10:15,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 20:10:15,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 20:10:15,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 20:10:15,127 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 20:10:15,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 20:10:15,127 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 20:10:15,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 20:10:15,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 20:10:15,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 20:10:15,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 20:10:15,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 20:10:15,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 20:10:15,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 20:10:15,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 20:10:15,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 20:10:15,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 20:10:15,131 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 20:10:15,131 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 20:10:15,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 20:10:15,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 20:10:15,132 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_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bef6e9194447b24677d0088ba0b7766a25273d0b [2021-10-15 20:10:15,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 20:10:15,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 20:10:15,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 20:10:15,480 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 20:10:15,481 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 20:10:15,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-10-15 20:10:15,613 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/data/7cfc3fa9f/a874d7ec9708462f8456026013e1969e/FLAG10376eae2 [2021-10-15 20:10:16,190 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 20:10:16,195 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-10-15 20:10:16,211 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/data/7cfc3fa9f/a874d7ec9708462f8456026013e1969e/FLAG10376eae2 [2021-10-15 20:10:16,519 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/data/7cfc3fa9f/a874d7ec9708462f8456026013e1969e [2021-10-15 20:10:16,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 20:10:16,523 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 20:10:16,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 20:10:16,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 20:10:16,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 20:10:16,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:10:16" (1/1) ... [2021-10-15 20:10:16,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd2ca90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:16, skipping insertion in model container [2021-10-15 20:10:16,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:10:16" (1/1) ... [2021-10-15 20:10:16,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 20:10:16,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 20:10:16,773 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_572d275f-8683-4822-acdc-133aff0856da/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-10-15 20:10:16,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:10:16,787 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 20:10:16,819 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_572d275f-8683-4822-acdc-133aff0856da/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-10-15 20:10:16,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:10:16,837 INFO L208 MainTranslator]: Completed translation [2021-10-15 20:10:16,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:16 WrapperNode [2021-10-15 20:10:16,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 20:10:16,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 20:10:16,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 20:10:16,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 20:10:16,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:16" (1/1) ... [2021-10-15 20:10:16,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:16" (1/1) ... [2021-10-15 20:10:16,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 20:10:16,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 20:10:16,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 20:10:16,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 20:10:16,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:16" (1/1) ... [2021-10-15 20:10:16,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:16" (1/1) ... [2021-10-15 20:10:16,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:16" (1/1) ... [2021-10-15 20:10:16,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:16" (1/1) ... [2021-10-15 20:10:16,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:16" (1/1) ... [2021-10-15 20:10:16,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:16" (1/1) ... [2021-10-15 20:10:16,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:16" (1/1) ... [2021-10-15 20:10:16,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 20:10:16,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 20:10:16,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 20:10:16,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 20:10:16,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:16" (1/1) ... [2021-10-15 20:10:16,939 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 20:10:16,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:10:16,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 20:10:16,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 20:10:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 20:10:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 20:10:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-15 20:10:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 20:10:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-15 20:10:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 20:10:17,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 20:10:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 20:10:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 20:10:17,433 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 20:10:17,433 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-15 20:10:17,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:10:17 BoogieIcfgContainer [2021-10-15 20:10:17,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 20:10:17,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 20:10:17,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 20:10:17,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 20:10:17,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:10:16" (1/3) ... [2021-10-15 20:10:17,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a9b54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:10:17, skipping insertion in model container [2021-10-15 20:10:17,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:16" (2/3) ... [2021-10-15 20:10:17,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a9b54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:10:17, skipping insertion in model container [2021-10-15 20:10:17,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:10:17" (3/3) ... [2021-10-15 20:10:17,448 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710.c [2021-10-15 20:10:17,455 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 20:10:17,456 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 20:10:17,515 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 20:10:17,523 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, mConcurrency=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 [2021-10-15 20:10:17,524 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 20:10:17,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 53 transitions, 106 flow [2021-10-15 20:10:17,591 INFO L129 PetriNetUnfolder]: 19/53 cut-off events. [2021-10-15 20:10:17,592 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:10:17,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 53 events. 19/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-10-15 20:10:17,595 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 53 transitions, 106 flow [2021-10-15 20:10:17,604 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 47 transitions, 94 flow [2021-10-15 20:10:17,629 INFO L129 PetriNetUnfolder]: 8/26 cut-off events. [2021-10-15 20:10:17,629 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:10:17,630 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 20:10:17,631 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:10:17,631 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 20:10:17,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:10:17,639 INFO L82 PathProgramCache]: Analyzing trace with hash 860611220, now seen corresponding path program 1 times [2021-10-15 20:10:17,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:10:17,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032448703] [2021-10-15 20:10:17,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:10:17,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:10:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:10:17,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:10:17,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:10:17,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032448703] [2021-10-15 20:10:17,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032448703] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:10:17,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:10:17,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 20:10:17,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793178795] [2021-10-15 20:10:17,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-15 20:10:17,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:10:17,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-15 20:10:17,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-15 20:10:17,877 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 53 [2021-10-15 20:10:17,880 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 47 transitions, 94 flow. Second operand has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:10:17,881 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 20:10:17,881 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 53 [2021-10-15 20:10:17,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 20:10:17,899 INFO L129 PetriNetUnfolder]: 11/41 cut-off events. [2021-10-15 20:10:17,899 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:10:17,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 41 events. 11/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 6/36 useless extension candidates. Maximal degree in co-relation 41. Up to 4 conditions per place. [2021-10-15 20:10:17,902 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 0 selfloop transitions, 0 changer transitions 0/41 dead transitions. [2021-10-15 20:10:17,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 41 transitions, 82 flow [2021-10-15 20:10:17,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-15 20:10:17,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-15 20:10:17,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 98 transitions. [2021-10-15 20:10:17,918 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9245283018867925 [2021-10-15 20:10:17,919 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 98 transitions. [2021-10-15 20:10:17,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 98 transitions. [2021-10-15 20:10:17,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:10:17,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 98 transitions. [2021-10-15 20:10:17,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:10:17,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:10:17,935 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:10:17,938 INFO L186 Difference]: Start difference. First operand has 31 places, 47 transitions, 94 flow. Second operand 2 states and 98 transitions. [2021-10-15 20:10:17,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 41 transitions, 82 flow [2021-10-15 20:10:17,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 41 transitions, 82 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 20:10:17,946 INFO L242 Difference]: Finished difference. Result has 32 places, 41 transitions, 82 flow [2021-10-15 20:10:17,949 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=32, PETRI_TRANSITIONS=41} [2021-10-15 20:10:17,950 INFO L334 CegarLoopForPetriNet]: 31 programPoint places, 1 predicate places. [2021-10-15 20:10:17,950 INFO L470 AbstractCegarLoop]: Abstraction has has 32 places, 41 transitions, 82 flow [2021-10-15 20:10:17,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:10:17,951 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 20:10:17,951 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:10:17,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 20:10:17,952 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 20:10:17,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:10:17,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1279985196, now seen corresponding path program 1 times [2021-10-15 20:10:17,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:10:17,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142516830] [2021-10-15 20:10:17,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:10:17,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:10:18,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:10:18,015 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:10:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:10:18,088 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:10:18,089 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-15 20:10:18,091 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 20:10:18,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-15 20:10:18,108 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 20:10:18,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 08:10:18 BoogieIcfgContainer [2021-10-15 20:10:18,160 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 20:10:18,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 20:10:18,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 20:10:18,166 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 20:10:18,167 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:10:17" (3/4) ... [2021-10-15 20:10:18,171 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 20:10:18,171 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 20:10:18,175 INFO L168 Benchmark]: Toolchain (without parser) took 1649.25 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 55.8 MB in the beginning and 72.8 MB in the end (delta: -17.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2021-10-15 20:10:18,176 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 88.1 MB. Free memory is still 42.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:10:18,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.09 ms. Allocated memory is still 88.1 MB. Free memory was 55.5 MB in the beginning and 63.3 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 20:10:18,180 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.76 ms. Allocated memory is still 88.1 MB. Free memory was 63.3 MB in the beginning and 61.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:10:18,182 INFO L168 Benchmark]: Boogie Preprocessor took 39.01 ms. Allocated memory is still 88.1 MB. Free memory was 61.5 MB in the beginning and 60.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:10:18,188 INFO L168 Benchmark]: RCFGBuilder took 509.36 ms. Allocated memory is still 88.1 MB. Free memory was 59.9 MB in the beginning and 47.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-15 20:10:18,189 INFO L168 Benchmark]: TraceAbstraction took 722.00 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 47.2 MB in the beginning and 73.3 MB in the end (delta: -26.1 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2021-10-15 20:10:18,190 INFO L168 Benchmark]: Witness Printer took 5.45 ms. Allocated memory is still 115.3 MB. Free memory was 73.3 MB in the beginning and 72.8 MB in the end (delta: 531.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:10:18,199 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 88.1 MB. Free memory is still 42.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 314.09 ms. Allocated memory is still 88.1 MB. Free memory was 55.5 MB in the beginning and 63.3 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.76 ms. Allocated memory is still 88.1 MB. Free memory was 63.3 MB in the beginning and 61.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.01 ms. Allocated memory is still 88.1 MB. Free memory was 61.5 MB in the beginning and 60.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 509.36 ms. Allocated memory is still 88.1 MB. Free memory was 59.9 MB in the beginning and 47.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 722.00 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 47.2 MB in the beginning and 73.3 MB in the end (delta: -26.1 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * Witness Printer took 5.45 ms. Allocated memory is still 115.3 MB. Free memory was 73.3 MB in the beginning and 72.8 MB in the end (delta: 531.4 kB). 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: 100]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of bitwiseAnd at line 29, overapproximation of someBinaryArithmeticFLOAToperation at line 32. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L93] float x = __VERIFIER_nondet_float(); [L94] COND TRUE x < -0.0f [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L96] float res = __ieee754_sqrtf(x); [L15] return x != x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L99] COND TRUE !isnan_float(res) [L100] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 25.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 596.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 81.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 80.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 0 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.7ms SsaConstructionTime, 82.9ms SatisfiabilityAnalysisTime, 61.8ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 [2021-10-15 20:10:18,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/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-5709675 [2021-10-15 20:10:21,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 20:10:21,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 20:10:21,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 20:10:21,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 20:10:21,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 20:10:21,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 20:10:21,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 20:10:21,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 20:10:21,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 20:10:21,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 20:10:21,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 20:10:21,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 20:10:21,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 20:10:21,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 20:10:21,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 20:10:21,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 20:10:21,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 20:10:21,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 20:10:21,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 20:10:21,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 20:10:21,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 20:10:21,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 20:10:21,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 20:10:21,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 20:10:21,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 20:10:21,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 20:10:21,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 20:10:21,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 20:10:21,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 20:10:21,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 20:10:21,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 20:10:21,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 20:10:21,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 20:10:21,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 20:10:21,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 20:10:21,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 20:10:21,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 20:10:21,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 20:10:21,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 20:10:21,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 20:10:21,262 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-15 20:10:21,323 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 20:10:21,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 20:10:21,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 20:10:21,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 20:10:21,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 20:10:21,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 20:10:21,328 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 20:10:21,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 20:10:21,329 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 20:10:21,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 20:10:21,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 20:10:21,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 20:10:21,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 20:10:21,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 20:10:21,333 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-15 20:10:21,333 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-15 20:10:21,333 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 20:10:21,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 20:10:21,334 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 20:10:21,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 20:10:21,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 20:10:21,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 20:10:21,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 20:10:21,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 20:10:21,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 20:10:21,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 20:10:21,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 20:10:21,338 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-15 20:10:21,338 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-15 20:10:21,339 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 20:10:21,339 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 20:10:21,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 20:10:21,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 20:10:21,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-15 20:10:21,341 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_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bef6e9194447b24677d0088ba0b7766a25273d0b [2021-10-15 20:10:21,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 20:10:21,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 20:10:21,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 20:10:21,922 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 20:10:21,923 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 20:10:21,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-10-15 20:10:22,015 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/data/6ea2ffc41/42c00dd3e5994d35a18318072790f5cb/FLAG4fad1b161 [2021-10-15 20:10:22,651 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 20:10:22,652 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-10-15 20:10:22,672 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/data/6ea2ffc41/42c00dd3e5994d35a18318072790f5cb/FLAG4fad1b161 [2021-10-15 20:10:22,996 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/data/6ea2ffc41/42c00dd3e5994d35a18318072790f5cb [2021-10-15 20:10:23,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 20:10:23,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 20:10:23,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 20:10:23,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 20:10:23,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 20:10:23,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:10:22" (1/1) ... [2021-10-15 20:10:23,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a73f72b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:23, skipping insertion in model container [2021-10-15 20:10:23,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:10:22" (1/1) ... [2021-10-15 20:10:23,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 20:10:23,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 20:10:23,336 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_572d275f-8683-4822-acdc-133aff0856da/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-10-15 20:10:23,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:10:23,370 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 20:10:23,477 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_572d275f-8683-4822-acdc-133aff0856da/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-10-15 20:10:23,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:10:23,502 INFO L208 MainTranslator]: Completed translation [2021-10-15 20:10:23,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:23 WrapperNode [2021-10-15 20:10:23,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 20:10:23,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 20:10:23,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 20:10:23,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 20:10:23,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:23" (1/1) ... [2021-10-15 20:10:23,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:23" (1/1) ... [2021-10-15 20:10:23,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 20:10:23,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 20:10:23,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 20:10:23,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 20:10:23,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:23" (1/1) ... [2021-10-15 20:10:23,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:23" (1/1) ... [2021-10-15 20:10:23,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:23" (1/1) ... [2021-10-15 20:10:23,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:23" (1/1) ... [2021-10-15 20:10:23,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:23" (1/1) ... [2021-10-15 20:10:23,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:23" (1/1) ... [2021-10-15 20:10:23,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:23" (1/1) ... [2021-10-15 20:10:23,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 20:10:23,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 20:10:23,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 20:10:23,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 20:10:23,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:23" (1/1) ... [2021-10-15 20:10:23,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 20:10:23,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:10:23,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 20:10:23,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 20:10:23,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-15 20:10:23,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 20:10:23,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-15 20:10:23,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-15 20:10:23,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 20:10:23,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 20:10:23,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-15 20:10:23,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-15 20:10:23,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 20:10:24,714 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 20:10:24,714 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-15 20:10:24,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:10:24 BoogieIcfgContainer [2021-10-15 20:10:24,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 20:10:24,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 20:10:24,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 20:10:24,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 20:10:24,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:10:22" (1/3) ... [2021-10-15 20:10:24,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473977b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:10:24, skipping insertion in model container [2021-10-15 20:10:24,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:23" (2/3) ... [2021-10-15 20:10:24,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473977b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:10:24, skipping insertion in model container [2021-10-15 20:10:24,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:10:24" (3/3) ... [2021-10-15 20:10:24,729 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710.c [2021-10-15 20:10:24,735 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 20:10:24,735 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 20:10:24,799 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 20:10:24,808 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, mConcurrency=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 [2021-10-15 20:10:24,808 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 20:10:24,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 53 transitions, 106 flow [2021-10-15 20:10:24,867 INFO L129 PetriNetUnfolder]: 19/53 cut-off events. [2021-10-15 20:10:24,868 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:10:24,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 53 events. 19/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-10-15 20:10:24,870 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 53 transitions, 106 flow [2021-10-15 20:10:24,876 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 47 transitions, 94 flow [2021-10-15 20:10:24,882 INFO L129 PetriNetUnfolder]: 8/26 cut-off events. [2021-10-15 20:10:24,897 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:10:24,897 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 20:10:24,898 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:10:24,899 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 20:10:24,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:10:24,906 INFO L82 PathProgramCache]: Analyzing trace with hash 860611220, now seen corresponding path program 1 times [2021-10-15 20:10:24,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 20:10:24,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828424722] [2021-10-15 20:10:24,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:10:24,932 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 20:10:24,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 20:10:24,940 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 20:10:24,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-15 20:10:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:10:25,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-15 20:10:25,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:10:25,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:10:25,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-15 20:10:25,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:10:25,302 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-15 20:10:25,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828424722] [2021-10-15 20:10:25,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828424722] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-15 20:10:25,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:10:25,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-15 20:10:25,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493839387] [2021-10-15 20:10:25,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-15 20:10:25,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-15 20:10:25,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-15 20:10:25,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-15 20:10:25,336 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 53 [2021-10-15 20:10:25,340 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 47 transitions, 94 flow. Second operand has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:10:25,340 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 20:10:25,341 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 53 [2021-10-15 20:10:25,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 20:10:25,356 INFO L129 PetriNetUnfolder]: 11/41 cut-off events. [2021-10-15 20:10:25,356 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:10:25,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 41 events. 11/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 6/36 useless extension candidates. Maximal degree in co-relation 41. Up to 4 conditions per place. [2021-10-15 20:10:25,359 INFO L132 encePairwiseOnDemand]: 47/53 looper letters, 0 selfloop transitions, 0 changer transitions 0/41 dead transitions. [2021-10-15 20:10:25,360 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 41 transitions, 82 flow [2021-10-15 20:10:25,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-15 20:10:25,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-15 20:10:25,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 98 transitions. [2021-10-15 20:10:25,374 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9245283018867925 [2021-10-15 20:10:25,375 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 98 transitions. [2021-10-15 20:10:25,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 98 transitions. [2021-10-15 20:10:25,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:10:25,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 98 transitions. [2021-10-15 20:10:25,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:10:25,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:10:25,390 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:10:25,392 INFO L186 Difference]: Start difference. First operand has 31 places, 47 transitions, 94 flow. Second operand 2 states and 98 transitions. [2021-10-15 20:10:25,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 41 transitions, 82 flow [2021-10-15 20:10:25,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 41 transitions, 82 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 20:10:25,400 INFO L242 Difference]: Finished difference. Result has 32 places, 41 transitions, 82 flow [2021-10-15 20:10:25,403 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=32, PETRI_TRANSITIONS=41} [2021-10-15 20:10:25,404 INFO L334 CegarLoopForPetriNet]: 31 programPoint places, 1 predicate places. [2021-10-15 20:10:25,404 INFO L470 AbstractCegarLoop]: Abstraction has has 32 places, 41 transitions, 82 flow [2021-10-15 20:10:25,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:10:25,405 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 20:10:25,405 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:10:25,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-15 20:10:25,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 [2021-10-15 20:10:25,623 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 20:10:25,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:10:25,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1279985196, now seen corresponding path program 1 times [2021-10-15 20:10:25,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 20:10:25,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806737288] [2021-10-15 20:10:25,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:10:25,626 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 20:10:25,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 20:10:25,628 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 20:10:25,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-15 20:10:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:10:25,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-15 20:10:25,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:10:36,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:10:36,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-15 20:10:52,522 WARN L207 SmtUtils]: Spent 5.31 s on a formula simplification that was a NOOP. DAG size: 10 [2021-10-15 20:11:35,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:11:35,553 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-15 20:11:35,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806737288] [2021-10-15 20:11:35,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [806737288] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-15 20:11:35,554 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:11:35,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2021-10-15 20:11:35,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197433713] [2021-10-15 20:11:35,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-15 20:11:35,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-15 20:11:35,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-15 20:11:35,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=167, Unknown=2, NotChecked=0, Total=210 [2021-10-15 20:11:35,570 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 53 [2021-10-15 20:11:35,580 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 41 transitions, 82 flow. Second operand has 15 states, 15 states have (on average 16.2) internal successors, (243), 15 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:11:35,581 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 20:11:35,581 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 53 [2021-10-15 20:11:35,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 20:12:05,149 WARN L207 SmtUtils]: Spent 8.25 s on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2021-10-15 20:12:18,222 WARN L207 SmtUtils]: Spent 8.99 s on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-10-15 20:12:31,498 WARN L207 SmtUtils]: Spent 9.41 s on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-10-15 20:12:35,148 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-10-15 20:12:35,148 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:12:35,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 16 events. 0/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-10-15 20:12:35,150 INFO L132 encePairwiseOnDemand]: 43/53 looper letters, 7 selfloop transitions, 4 changer transitions 3/16 dead transitions. [2021-10-15 20:12:35,150 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 16 transitions, 60 flow [2021-10-15 20:12:35,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-15 20:12:35,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-15 20:12:35,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 152 transitions. [2021-10-15 20:12:35,158 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.31865828092243187 [2021-10-15 20:12:35,159 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 152 transitions. [2021-10-15 20:12:35,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 152 transitions. [2021-10-15 20:12:35,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:12:35,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 152 transitions. [2021-10-15 20:12:35,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:12:35,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 53.0) internal successors, (530), 10 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:12:35,168 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 53.0) internal successors, (530), 10 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:12:35,169 INFO L186 Difference]: Start difference. First operand has 32 places, 41 transitions, 82 flow. Second operand 9 states and 152 transitions. [2021-10-15 20:12:35,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 16 transitions, 60 flow [2021-10-15 20:12:35,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 16 transitions, 60 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 20:12:35,173 INFO L242 Difference]: Finished difference. Result has 26 places, 13 transitions, 40 flow [2021-10-15 20:12:35,173 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=40, PETRI_PLACES=26, PETRI_TRANSITIONS=13} [2021-10-15 20:12:35,174 INFO L334 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2021-10-15 20:12:35,174 INFO L470 AbstractCegarLoop]: Abstraction has has 26 places, 13 transitions, 40 flow [2021-10-15 20:12:35,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 16.2) internal successors, (243), 15 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:12:35,175 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 20:12:35,176 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:12:35,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-15 20:12:35,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 [2021-10-15 20:12:35,377 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 20:12:35,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:12:35,379 INFO L82 PathProgramCache]: Analyzing trace with hash 939378801, now seen corresponding path program 1 times [2021-10-15 20:12:35,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 20:12:35,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668192531] [2021-10-15 20:12:35,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:12:35,381 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 20:12:35,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 20:12:35,384 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 20:12:35,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-15 20:12:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:12:35,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-15 20:12:35,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:12:41,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:12:41,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-15 20:12:45,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:12:45,894 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-15 20:12:45,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668192531] [2021-10-15 20:12:45,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668192531] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-15 20:12:45,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:12:45,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-15 20:12:45,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415184190] [2021-10-15 20:12:45,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-15 20:12:45,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-15 20:12:45,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-15 20:12:45,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-15 20:12:45,907 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 53 [2021-10-15 20:12:45,908 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 13 transitions, 40 flow. Second operand has 9 states, 9 states have (on average 34.55555555555556) internal successors, (311), 9 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:12:45,909 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 20:12:45,909 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 53 [2021-10-15 20:12:45,909 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 20:12:55,744 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-10-15 20:12:55,744 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:12:55,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 11 events. 0/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/12 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-10-15 20:12:55,745 INFO L132 encePairwiseOnDemand]: 48/53 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2021-10-15 20:12:55,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 11 transitions, 46 flow [2021-10-15 20:12:55,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 20:12:55,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-15 20:12:55,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 205 transitions. [2021-10-15 20:12:55,749 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6446540880503144 [2021-10-15 20:12:55,750 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 205 transitions. [2021-10-15 20:12:55,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 205 transitions. [2021-10-15 20:12:55,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:12:55,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 205 transitions. [2021-10-15 20:12:55,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 34.166666666666664) internal successors, (205), 6 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:12:55,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 53.0) internal successors, (371), 7 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:12:55,759 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 53.0) internal successors, (371), 7 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:12:55,759 INFO L186 Difference]: Start difference. First operand has 26 places, 13 transitions, 40 flow. Second operand 6 states and 205 transitions. [2021-10-15 20:12:55,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 11 transitions, 46 flow [2021-10-15 20:12:55,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 11 transitions, 35 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-10-15 20:12:55,762 INFO L242 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2021-10-15 20:12:55,762 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2021-10-15 20:12:55,763 INFO L334 CegarLoopForPetriNet]: 31 programPoint places, -11 predicate places. [2021-10-15 20:12:55,763 INFO L470 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2021-10-15 20:12:55,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 34.55555555555556) internal successors, (311), 9 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:12:55,768 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 20:12:55,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-15 20:12:55,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 [2021-10-15 20:12:55,988 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 20:12:55,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 08:12:55 BoogieIcfgContainer [2021-10-15 20:12:55,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 20:12:55,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 20:12:55,995 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 20:12:55,995 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 20:12:55,996 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:10:24" (3/4) ... [2021-10-15 20:12:56,000 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-15 20:12:56,022 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-15 20:12:56,023 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-15 20:12:56,024 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 20:12:56,024 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 20:12:56,126 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 20:12:56,127 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 20:12:56,129 INFO L168 Benchmark]: Toolchain (without parser) took 153123.49 ms. Allocated memory was 58.7 MB in the beginning and 90.2 MB in the end (delta: 31.5 MB). Free memory was 36.3 MB in the beginning and 53.5 MB in the end (delta: -17.2 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-10-15 20:12:56,129 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 58.7 MB. Free memory is still 38.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:12:56,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 501.21 ms. Allocated memory was 58.7 MB in the beginning and 90.2 MB in the end (delta: 31.5 MB). Free memory was 36.1 MB in the beginning and 71.3 MB in the end (delta: -35.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-15 20:12:56,131 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.07 ms. Allocated memory is still 90.2 MB. Free memory was 71.3 MB in the beginning and 69.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:12:56,132 INFO L168 Benchmark]: Boogie Preprocessor took 89.98 ms. Allocated memory is still 90.2 MB. Free memory was 69.4 MB in the beginning and 67.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:12:56,136 INFO L168 Benchmark]: RCFGBuilder took 1035.74 ms. Allocated memory is still 90.2 MB. Free memory was 67.6 MB in the beginning and 55.1 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-15 20:12:56,137 INFO L168 Benchmark]: TraceAbstraction took 151273.84 ms. Allocated memory is still 90.2 MB. Free memory was 54.4 MB in the beginning and 57.0 MB in the end (delta: -2.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:12:56,137 INFO L168 Benchmark]: Witness Printer took 132.52 ms. Allocated memory is still 90.2 MB. Free memory was 56.5 MB in the beginning and 53.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 20:12:56,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 58.7 MB. Free memory is still 38.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 501.21 ms. Allocated memory was 58.7 MB in the beginning and 90.2 MB in the end (delta: 31.5 MB). Free memory was 36.1 MB in the beginning and 71.3 MB in the end (delta: -35.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.07 ms. Allocated memory is still 90.2 MB. Free memory was 71.3 MB in the beginning and 69.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.98 ms. Allocated memory is still 90.2 MB. Free memory was 69.4 MB in the beginning and 67.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1035.74 ms. Allocated memory is still 90.2 MB. Free memory was 67.6 MB in the beginning and 55.1 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 151273.84 ms. Allocated memory is still 90.2 MB. Free memory was 54.4 MB in the beginning and 57.0 MB in the end (delta: -2.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 132.52 ms. Allocated memory is still 90.2 MB. Free memory was 56.5 MB in the beginning and 53.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. 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 - PositiveResult [Line: 100]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 20.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 151194.5ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 69549.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 67.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7 SDtfs, 31 SDslu, 30 SDs, 0 SdLazy, 68 SolverSat, 2 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 23909.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 102346.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 52.9ms SsaConstructionTime, 635.6ms SatisfiabilityAnalysisTime, 79940.6ms InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 62 ConstructedInterpolants, 4 QuantifiedInterpolants, 320 SizeOfPredicates, 21 NumberOfNonLiveVariables, 135 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-15 20:12:56,377 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-15 20:12:56,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572d275f-8683-4822-acdc-133aff0856da/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...