./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e ................................................................................................................................................................................................................................................................................................ 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_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:02:52,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:02:52,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:02:52,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:02:52,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:02:52,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:02:52,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:02:52,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:02:52,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:02:52,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:02:52,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:02:52,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:02:52,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:02:52,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:02:52,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:02:52,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:02:52,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:02:52,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:02:52,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:02:52,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:02:52,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:02:52,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:02:52,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:02:52,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:02:52,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:02:52,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:02:52,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:02:52,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:02:52,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:02:52,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:02:52,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:02:52,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:02:52,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:02:52,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:02:52,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:02:52,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:02:52,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:02:52,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:02:52,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:02:52,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:02:52,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:02:52,100 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:02:52,150 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:02:52,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:02:52,151 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:02:52,152 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:02:52,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:02:52,154 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:02:52,154 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:02:52,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:02:52,155 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:02:52,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:02:52,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:02:52,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:02:52,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:02:52,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:02:52,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:02:52,158 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:02:52,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:02:52,159 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:02:52,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:02:52,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:02:52,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:02:52,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:02:52,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:02:52,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:02:52,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:02:52,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:02:52,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:02:52,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:02:52,162 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:02:52,164 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:02:52,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:02:52,165 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:02:52,165 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_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e [2021-10-28 09:02:52,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:02:52,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:02:52,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:02:52,561 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:02:52,562 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:02:52,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/floats-cbmc-regression/float20.i [2021-10-28 09:02:52,662 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/data/4959bf5c7/5361472732d94c379ddaa5e2ae396492/FLAGc8fa7ddf6 [2021-10-28 09:02:53,197 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:02:53,198 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/sv-benchmarks/c/floats-cbmc-regression/float20.i [2021-10-28 09:02:53,204 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/data/4959bf5c7/5361472732d94c379ddaa5e2ae396492/FLAGc8fa7ddf6 [2021-10-28 09:02:53,592 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/data/4959bf5c7/5361472732d94c379ddaa5e2ae396492 [2021-10-28 09:02:53,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:02:53,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:02:53,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:02:53,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:02:53,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:02:53,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:02:53" (1/1) ... [2021-10-28 09:02:53,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@124c4756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:53, skipping insertion in model container [2021-10-28 09:02:53,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:02:53" (1/1) ... [2021-10-28 09:02:53,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:02:53,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:02:53,926 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_b9a6fddc-c1a3-412b-abea-364899e932bc/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2021-10-28 09:02:53,949 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_b9a6fddc-c1a3-412b-abea-364899e932bc/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2021-10-28 09:02:53,954 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_b9a6fddc-c1a3-412b-abea-364899e932bc/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2021-10-28 09:02:53,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:02:53,968 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:02:53,987 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_b9a6fddc-c1a3-412b-abea-364899e932bc/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2021-10-28 09:02:54,001 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_b9a6fddc-c1a3-412b-abea-364899e932bc/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2021-10-28 09:02:54,004 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_b9a6fddc-c1a3-412b-abea-364899e932bc/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2021-10-28 09:02:54,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:02:54,023 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:02:54,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:54 WrapperNode [2021-10-28 09:02:54,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:02:54,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:02:54,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:02:54,026 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:02:54,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:54" (1/1) ... [2021-10-28 09:02:54,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:54" (1/1) ... [2021-10-28 09:02:54,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:02:54,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:02:54,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:02:54,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:02:54,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:54" (1/1) ... [2021-10-28 09:02:54,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:54" (1/1) ... [2021-10-28 09:02:54,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:54" (1/1) ... [2021-10-28 09:02:54,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:54" (1/1) ... [2021-10-28 09:02:54,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:54" (1/1) ... [2021-10-28 09:02:54,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:54" (1/1) ... [2021-10-28 09:02:54,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:54" (1/1) ... [2021-10-28 09:02:54,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:02:54,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:02:54,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:02:54,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:02:54,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:54" (1/1) ... [2021-10-28 09:02:54,144 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:02:54,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:54,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:54,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:02:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:02:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:02:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:02:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:02:54,504 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:02:54,504 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-28 09:02:54,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:02:54 BoogieIcfgContainer [2021-10-28 09:02:54,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:02:54,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:02:54,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:02:54,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:02:54,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:02:53" (1/3) ... [2021-10-28 09:02:54,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30507b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:02:54, skipping insertion in model container [2021-10-28 09:02:54,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:54" (2/3) ... [2021-10-28 09:02:54,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30507b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:02:54, skipping insertion in model container [2021-10-28 09:02:54,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:02:54" (3/3) ... [2021-10-28 09:02:54,532 INFO L111 eAbstractionObserver]: Analyzing ICFG float20.i [2021-10-28 09:02:54,539 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:02:54,549 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-28 09:02:54,647 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:02:54,662 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:02:54,662 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 09:02:54,683 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:02:54,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-28 09:02:54,690 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:02:54,691 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:02:54,693 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:02:54,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:54,705 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-10-28 09:02:54,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:54,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977369533] [2021-10-28 09:02:54,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:54,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:02:54,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:02:54,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:02:54,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977369533] [2021-10-28 09:02:54,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977369533] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:02:54,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:02:54,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:02:54,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611294245] [2021-10-28 09:02:54,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:02:54,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:02:54,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:02:54,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:02:54,904 INFO L87 Difference]: Start difference. First operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:02:54,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:02:54,921 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2021-10-28 09:02:54,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:02:54,923 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-28 09:02:54,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:02:54,933 INFO L225 Difference]: With dead ends: 43 [2021-10-28 09:02:54,933 INFO L226 Difference]: Without dead ends: 19 [2021-10-28 09:02:54,936 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:02:54,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-28 09:02:54,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-28 09:02:54,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.125) internal successors, (18), 18 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:02:54,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2021-10-28 09:02:54,972 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 6 [2021-10-28 09:02:54,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:02:54,973 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2021-10-28 09:02:54,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:02:54,973 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2021-10-28 09:02:54,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-28 09:02:54,974 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:02:54,974 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:02:54,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:02:54,975 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:02:54,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:54,977 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-10-28 09:02:54,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:54,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140608295] [2021-10-28 09:02:54,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:54,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:55,025 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:02:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:55,068 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:02:55,069 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:02:55,071 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:02:55,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:02:55,089 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:02:55,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:02:55,094 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 09:02:55,097 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:02:55,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:02:55 BoogieIcfgContainer [2021-10-28 09:02:55,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:02:55,116 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:02:55,116 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:02:55,117 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:02:55,117 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:02:54" (3/4) ... [2021-10-28 09:02:55,121 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:02:55,121 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:02:55,123 INFO L168 Benchmark]: Toolchain (without parser) took 1522.62 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 57.4 MB in the beginning and 102.6 MB in the end (delta: -45.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:02:55,124 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 92.3 MB. Free memory was 63.8 MB in the beginning and 63.8 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:02:55,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.55 ms. Allocated memory is still 92.3 MB. Free memory was 57.2 MB in the beginning and 65.1 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:55,126 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.82 ms. Allocated memory is still 92.3 MB. Free memory was 65.1 MB in the beginning and 63.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:55,127 INFO L168 Benchmark]: Boogie Preprocessor took 55.54 ms. Allocated memory is still 92.3 MB. Free memory was 63.5 MB in the beginning and 62.7 MB in the end (delta: 879.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:55,127 INFO L168 Benchmark]: RCFGBuilder took 374.02 ms. Allocated memory is still 92.3 MB. Free memory was 62.7 MB in the beginning and 53.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:55,128 INFO L168 Benchmark]: TraceAbstraction took 606.82 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 53.2 MB in the beginning and 102.6 MB in the end (delta: -49.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:02:55,129 INFO L168 Benchmark]: Witness Printer took 4.87 ms. Allocated memory is still 127.9 MB. Free memory is still 102.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:02:55,132 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 92.3 MB. Free memory was 63.8 MB in the beginning and 63.8 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 420.55 ms. Allocated memory is still 92.3 MB. Free memory was 57.2 MB in the beginning and 65.1 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.82 ms. Allocated memory is still 92.3 MB. Free memory was 65.1 MB in the beginning and 63.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.54 ms. Allocated memory is still 92.3 MB. Free memory was 63.5 MB in the beginning and 62.7 MB in the end (delta: 879.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 374.02 ms. Allocated memory is still 92.3 MB. Free memory was 62.7 MB in the beginning and 53.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 606.82 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 53.2 MB in the beginning and 102.6 MB in the end (delta: -49.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.87 ms. Allocated memory is still 127.9 MB. Free memory is still 102.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: 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 21, overapproximation of someBinaryArithmeticFLOAToperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 18. Possible FailurePath: [L48] float f=__VERIFIER_nondet_float(); [L17] COND FALSE !(!(min == 0x1.fffffep-105f)) [L18] float modifier = (0x1.0p-23 * (1<<1)); [L19] float ulpdiff = min * modifier; [L21] COND TRUE !(ulpdiff == 0x1p-126f) [L21] reach_error() - UnprovableResult [Line: 32]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 [2021-10-28 09:02:55,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:02:57,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:02:57,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:02:57,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:02:57,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:02:57,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:02:57,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:02:57,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:02:57,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:02:57,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:02:57,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:02:57,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:02:57,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:02:57,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:02:57,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:02:57,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:02:57,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:02:57,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:02:57,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:02:57,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:02:57,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:02:57,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:02:57,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:02:57,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:02:57,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:02:57,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:02:57,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:02:57,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:02:57,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:02:57,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:02:57,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:02:57,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:02:57,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:02:57,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:02:58,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:02:58,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:02:58,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:02:58,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:02:58,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:02:58,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:02:58,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:02:58,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 09:02:58,067 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:02:58,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:02:58,068 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:02:58,068 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:02:58,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:02:58,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:02:58,070 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:02:58,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:02:58,070 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:02:58,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:02:58,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:02:58,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:02:58,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:02:58,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:02:58,071 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:02:58,071 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:02:58,072 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:02:58,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:02:58,072 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:02:58,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:02:58,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:02:58,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:02:58,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:02:58,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:02:58,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:02:58,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:02:58,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:02:58,076 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:02:58,077 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:02:58,077 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:02:58,077 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:02:58,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:02:58,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:02:58,078 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:02:58,078 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_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e [2021-10-28 09:02:58,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:02:58,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:02:58,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:02:58,536 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:02:58,537 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:02:58,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/floats-cbmc-regression/float20.i [2021-10-28 09:02:58,608 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/data/41ed5e863/9e01abdb0382470b9eb6e5e8ab3e17d3/FLAG069051768 [2021-10-28 09:02:59,219 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:02:59,221 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/sv-benchmarks/c/floats-cbmc-regression/float20.i [2021-10-28 09:02:59,230 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/data/41ed5e863/9e01abdb0382470b9eb6e5e8ab3e17d3/FLAG069051768 [2021-10-28 09:02:59,543 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/data/41ed5e863/9e01abdb0382470b9eb6e5e8ab3e17d3 [2021-10-28 09:02:59,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:02:59,548 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:02:59,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:02:59,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:02:59,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:02:59,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:02:59" (1/1) ... [2021-10-28 09:02:59,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a8a198e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:59, skipping insertion in model container [2021-10-28 09:02:59,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:02:59" (1/1) ... [2021-10-28 09:02:59,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:02:59,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:02:59,771 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_b9a6fddc-c1a3-412b-abea-364899e932bc/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2021-10-28 09:02:59,784 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_b9a6fddc-c1a3-412b-abea-364899e932bc/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2021-10-28 09:02:59,790 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_b9a6fddc-c1a3-412b-abea-364899e932bc/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2021-10-28 09:02:59,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:02:59,839 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:02:59,878 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_b9a6fddc-c1a3-412b-abea-364899e932bc/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2021-10-28 09:02:59,883 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_b9a6fddc-c1a3-412b-abea-364899e932bc/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2021-10-28 09:02:59,886 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_b9a6fddc-c1a3-412b-abea-364899e932bc/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2021-10-28 09:02:59,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:02:59,905 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:02:59,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:59 WrapperNode [2021-10-28 09:02:59,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:02:59,907 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:02:59,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:02:59,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:02:59,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:59" (1/1) ... [2021-10-28 09:02:59,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:59" (1/1) ... [2021-10-28 09:02:59,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:02:59,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:02:59,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:02:59,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:02:59,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:59" (1/1) ... [2021-10-28 09:02:59,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:59" (1/1) ... [2021-10-28 09:02:59,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:59" (1/1) ... [2021-10-28 09:02:59,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:59" (1/1) ... [2021-10-28 09:02:59,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:59" (1/1) ... [2021-10-28 09:02:59,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:59" (1/1) ... [2021-10-28 09:02:59,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:59" (1/1) ... [2021-10-28 09:02:59,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:02:59,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:02:59,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:02:59,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:02:59,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:59" (1/1) ... [2021-10-28 09:03:00,007 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:03:00,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:00,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:00,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:03:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 09:03:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:03:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:03:00,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:03:02,771 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:03:02,771 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-28 09:03:02,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:03:02 BoogieIcfgContainer [2021-10-28 09:03:02,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:03:02,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:03:02,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:03:02,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:03:02,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:02:59" (1/3) ... [2021-10-28 09:03:02,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b8f55e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:03:02, skipping insertion in model container [2021-10-28 09:03:02,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:59" (2/3) ... [2021-10-28 09:03:02,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b8f55e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:03:02, skipping insertion in model container [2021-10-28 09:03:02,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:03:02" (3/3) ... [2021-10-28 09:03:02,784 INFO L111 eAbstractionObserver]: Analyzing ICFG float20.i [2021-10-28 09:03:02,793 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:03:02,794 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-28 09:03:02,890 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:03:02,903 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:03:02,906 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 09:03:02,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:02,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-28 09:03:02,924 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:03:02,924 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:03:02,925 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:03:02,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:02,932 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-10-28 09:03:02,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:03:02,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19861284] [2021-10-28 09:03:02,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:02,948 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:03:02,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:03:02,952 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:03:02,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:03:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:03,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 09:03:03,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:03:03,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:03:03,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:03:03,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:03:03,282 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:03:03,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [19861284] [2021-10-28 09:03:03,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [19861284] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:03:03,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:03:03,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 09:03:03,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423896021] [2021-10-28 09:03:03,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:03:03,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:03:03,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:03:03,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:03:03,330 INFO L87 Difference]: Start difference. First operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:03,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:03:03,356 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2021-10-28 09:03:03,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:03:03,358 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-28 09:03:03,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:03:03,369 INFO L225 Difference]: With dead ends: 43 [2021-10-28 09:03:03,370 INFO L226 Difference]: Without dead ends: 19 [2021-10-28 09:03:03,374 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:03:03,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-28 09:03:03,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-28 09:03:03,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.125) internal successors, (18), 18 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:03,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2021-10-28 09:03:03,433 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 6 [2021-10-28 09:03:03,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:03:03,434 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2021-10-28 09:03:03,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:03,438 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2021-10-28 09:03:03,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-28 09:03:03,438 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:03:03,438 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:03:03,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:03,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:03:03,640 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:03:03,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:03,641 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-10-28 09:03:03,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:03:03,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560220917] [2021-10-28 09:03:03,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:03,643 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:03:03,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:03:03,647 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:03:03,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:03:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:03,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:03:03,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:03:04,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:03:04,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:03:06,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:03:06,458 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:03:06,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560220917] [2021-10-28 09:03:06,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560220917] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:03:06,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:03:06,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-28 09:03:06,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862842408] [2021-10-28 09:03:06,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:03:06,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:03:06,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:03:06,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:03:06,463 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:10,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:03:10,584 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-10-28 09:03:10,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:03:10,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-28 09:03:10,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:03:10,590 INFO L225 Difference]: With dead ends: 19 [2021-10-28 09:03:10,590 INFO L226 Difference]: Without dead ends: 17 [2021-10-28 09:03:10,591 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:03:10,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-28 09:03:10,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-28 09:03:10,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 16 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:10,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2021-10-28 09:03:10,595 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 6 [2021-10-28 09:03:10,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:03:10,596 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2021-10-28 09:03:10,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:03:10,596 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2021-10-28 09:03:10,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:03:10,597 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:03:10,597 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:03:10,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:03:10,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:03:10,798 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:03:10,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:10,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1928169781, now seen corresponding path program 1 times [2021-10-28 09:03:10,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:03:10,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341885300] [2021-10-28 09:03:10,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:10,801 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:03:10,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:03:10,802 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:03:10,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:03:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:11,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:03:11,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:03:24,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:03:24,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:03:33,535 WARN L860 $PredicateComparison]: unable to prove that (fp.eq ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_bugBrokenOut_~min) ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 8388608.0)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32))))))) ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0))) is different from true [2021-10-28 09:04:10,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:04:10,166 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:04:10,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341885300] [2021-10-28 09:04:10,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341885300] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:04:10,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:04:10,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-28 09:04:10,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686480141] [2021-10-28 09:04:10,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:04:10,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:04:10,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:04:10,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=26, Unknown=1, NotChecked=10, Total=56 [2021-10-28 09:04:10,171 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:25,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:04:25,588 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2021-10-28 09:04:25,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:04:25,623 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-28 09:04:25,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:04:25,641 INFO L225 Difference]: With dead ends: 17 [2021-10-28 09:04:25,641 INFO L226 Difference]: Without dead ends: 15 [2021-10-28 09:04:25,642 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 27.0s TimeCoverageRelationStatistics Valid=19, Invalid=26, Unknown=1, NotChecked=10, Total=56 [2021-10-28 09:04:25,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-28 09:04:25,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-28 09:04:25,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0) internal successors, (14), 14 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:25,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2021-10-28 09:04:25,647 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 10 [2021-10-28 09:04:25,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:04:25,647 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2021-10-28 09:04:25,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:25,648 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2021-10-28 09:04:25,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 09:04:25,649 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:04:25,649 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:04:25,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:25,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:04:25,857 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:04:25,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:04:25,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1162826544, now seen corresponding path program 1 times [2021-10-28 09:04:25,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:04:25,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112279171] [2021-10-28 09:04:25,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:04:25,865 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:04:25,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:04:25,867 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:04:25,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 09:04:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:04:26,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:04:26,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:04:27,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:04:27,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:04:34,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:04:34,783 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:04:34,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112279171] [2021-10-28 09:04:34,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112279171] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:04:34,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:04:34,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-28 09:04:34,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384413981] [2021-10-28 09:04:34,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:04:34,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:04:34,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:04:34,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:04:34,787 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:39,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:04:39,291 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2021-10-28 09:04:39,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:04:39,291 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-28 09:04:39,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:04:39,291 INFO L225 Difference]: With dead ends: 15 [2021-10-28 09:04:39,292 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 09:04:39,292 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:04:39,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 09:04:39,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 09:04:39,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:39,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:04:39,293 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-10-28 09:04:39,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:04:39,293 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:04:39,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:04:39,294 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:04:39,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 09:04:39,297 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:04:39,298 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:04:39,298 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:04:39,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:04:39,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:04:39,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 09:04:39,516 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:04:39,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:04:39,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:04:39,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:04:45,860 WARN L207 SmtUtils]: Spent 5.90 s on a formula simplification that was a NOOP. DAG size: 22 [2021-10-28 09:04:45,864 INFO L857 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2021-10-28 09:04:45,864 INFO L857 garLoopResultBuilder]: For program point L27-2(line 27) no Hoare annotation was computed. [2021-10-28 09:04:45,865 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 32) no Hoare annotation was computed. [2021-10-28 09:04:45,865 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-28 09:04:45,865 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 09:04:45,865 INFO L857 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2021-10-28 09:04:45,865 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 09:04:45,866 INFO L853 garLoopResultBuilder]: At program point L32-3(lines 26 35) the Hoare annotation is: (and (exists ((ULTIMATE.start_bugBrokenOut_~min (_ FloatingPoint 8 24))) (and (= ULTIMATE.start_bugBrokenOut_~ulpdiff~1 ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_bugBrokenOut_~min) ((_ to_fp 11 53) currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 8388608.0)) ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)))))))) (fp.eq ULTIMATE.start_bugBrokenOut_~min ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0))))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-28 09:04:45,866 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 09:04:45,866 INFO L860 garLoopResultBuilder]: At program point L57(lines 47 58) the Hoare annotation is: true [2021-10-28 09:04:45,866 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2021-10-28 09:04:45,867 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 09:04:45,867 INFO L857 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-10-28 09:04:45,867 INFO L857 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-10-28 09:04:45,867 INFO L853 garLoopResultBuilder]: At program point L21-3(lines 16 24) the Hoare annotation is: (and (fp.eq ULTIMATE.start_bug_~min ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0))) (exists ((ULTIMATE.start_bug_~min (_ FloatingPoint 8 24))) (and (fp.eq ULTIMATE.start_bug_~min ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0))) (= ULTIMATE.start_bug_~ulpdiff~0 (fp.mul currentRoundingMode ULTIMATE.start_bug_~min ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 8388608.0)) ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)))))))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-28 09:04:45,867 INFO L857 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2021-10-28 09:04:45,868 INFO L857 garLoopResultBuilder]: For program point L17-2(line 17) no Hoare annotation was computed. [2021-10-28 09:04:45,868 INFO L857 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2021-10-28 09:04:45,868 INFO L857 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed. [2021-10-28 09:04:45,868 INFO L860 garLoopResultBuilder]: At program point L42-3(lines 37 45) the Hoare annotation is: true [2021-10-28 09:04:45,868 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-28 09:04:45,868 INFO L857 garLoopResultBuilder]: For program point L38-2(line 38) no Hoare annotation was computed. [2021-10-28 09:04:45,869 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2021-10-28 09:04:45,872 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-10-28 09:04:45,874 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:04:45,881 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2021-10-28 09:04:45,882 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2021-10-28 09:04:45,885 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:04:45,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2021-10-28 09:04:45,891 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2021-10-28 09:04:45,891 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:04:45,894 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2021-10-28 09:04:45,894 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2021-10-28 09:04:45,895 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:04:45,896 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2021-10-28 09:04:45,897 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2021-10-28 09:04:45,897 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:04:45,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:04:45 BoogieIcfgContainer [2021-10-28 09:04:45,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:04:45,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:04:45,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:04:45,899 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:04:45,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:03:02" (3/4) ... [2021-10-28 09:04:45,903 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:04:45,914 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-28 09:04:45,914 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 09:04:45,914 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:04:45,915 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:04:45,938 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.eq~DOUBLE(min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && (\exists ULTIMATE.start_bug_~min : C_FLOAT :: ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-28 09:04:45,939 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start_bugBrokenOut_~min : C_FLOAT :: ulpdiff == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_bugBrokenOut_~min), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))))) && ~fp.eq~DOUBLE(ULTIMATE.start_bugBrokenOut_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-28 09:04:45,953 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:04:45,953 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:04:45,955 INFO L168 Benchmark]: Toolchain (without parser) took 106406.42 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 49.8 MB in the beginning and 54.7 MB in the end (delta: -5.0 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:45,955 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 83.9 MB. Free memory was 66.2 MB in the beginning and 66.2 MB in the end (delta: 72.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:04:45,956 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.82 ms. Allocated memory is still 83.9 MB. Free memory was 49.6 MB in the beginning and 66.1 MB in the end (delta: -16.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:45,957 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.67 ms. Allocated memory is still 83.9 MB. Free memory was 66.1 MB in the beginning and 64.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:45,957 INFO L168 Benchmark]: Boogie Preprocessor took 29.42 ms. Allocated memory is still 83.9 MB. Free memory was 64.4 MB in the beginning and 63.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:04:45,958 INFO L168 Benchmark]: RCFGBuilder took 2789.00 ms. Allocated memory is still 83.9 MB. Free memory was 63.1 MB in the beginning and 53.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:45,958 INFO L168 Benchmark]: TraceAbstraction took 103122.33 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 52.6 MB in the beginning and 57.4 MB in the end (delta: -4.9 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:45,959 INFO L168 Benchmark]: Witness Printer took 54.65 ms. Allocated memory is still 102.8 MB. Free memory was 57.4 MB in the beginning and 54.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:04:45,962 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 83.9 MB. Free memory was 66.2 MB in the beginning and 66.2 MB in the end (delta: 72.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 356.82 ms. Allocated memory is still 83.9 MB. Free memory was 49.6 MB in the beginning and 66.1 MB in the end (delta: -16.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.67 ms. Allocated memory is still 83.9 MB. Free memory was 66.1 MB in the beginning and 64.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.42 ms. Allocated memory is still 83.9 MB. Free memory was 64.4 MB in the beginning and 63.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2789.00 ms. Allocated memory is still 83.9 MB. Free memory was 63.1 MB in the beginning and 53.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 103122.33 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 52.6 MB in the beginning and 57.4 MB in the end (delta: -4.9 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * Witness Printer took 54.65 ms. Allocated memory is still 102.8 MB. Free memory was 57.4 MB in the beginning and 54.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 32]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 42]: 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, 23 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 102.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 24.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 31 SDslu, 22 SDs, 0 SdLazy, 84 SolverSat, 0 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 16.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 32.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 65 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 6.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 70.4s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 64 ConstructedInterpolants, 21 QuantifiedInterpolants, 619 SizeOfPredicates, 15 NumberOfNonLiveVariables, 126 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 3 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant [2021-10-28 09:04:45,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2021-10-28 09:04:45,973 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2021-10-28 09:04:45,973 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:04:45,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2021-10-28 09:04:45,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2021-10-28 09:04:45,974 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.eq~DOUBLE(min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && (\exists ULTIMATE.start_bug_~min : C_FLOAT :: ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 26]: Loop Invariant [2021-10-28 09:04:45,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2021-10-28 09:04:45,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2021-10-28 09:04:45,975 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:04:45,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2021-10-28 09:04:45,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2021-10-28 09:04:45,976 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists ULTIMATE.start_bugBrokenOut_~min : C_FLOAT :: ulpdiff == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_bugBrokenOut_~min), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))))) && ~fp.eq~DOUBLE(ULTIMATE.start_bugBrokenOut_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-28 09:04:46,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a6fddc-c1a3-412b-abea-364899e932bc/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...