./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12.c -s /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 748862a4a10e7eb5031b0856b76be837613208b8 ................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12.c -s /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 748862a4a10e7eb5031b0856b76be837613208b8 .................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:12:12,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:12:12,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:12:12,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:12:12,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:12:12,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:12:12,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:12:12,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:12:12,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:12:12,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:12:12,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:12:12,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:12:12,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:12:12,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:12:12,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:12:12,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:12:12,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:12:12,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:12:12,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:12:12,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:12:12,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:12:12,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:12:12,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:12:12,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:12:12,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:12:12,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:12:12,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:12:12,807 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:12:12,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:12:12,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:12:12,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:12:12,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:12:12,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:12:12,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:12:12,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:12:12,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:12:12,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:12:12,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:12:12,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:12:12,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:12:12,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:12:12,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 03:12:12,880 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:12:12,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:12:12,884 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:12:12,885 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:12:12,885 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:12:12,885 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:12:12,886 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 03:12:12,886 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:12:12,886 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:12:12,886 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 03:12:12,888 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 03:12:12,888 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:12:12,888 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 03:12:12,889 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 03:12:12,889 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 03:12:12,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:12:12,890 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:12:12,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:12:12,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:12:12,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:12:12,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:12:12,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:12:12,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:12:12,892 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:12:12,892 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:12:12,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:12:12,893 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:12:12,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:12:12,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:12:12,894 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:12:12,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:12:12,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:12:12,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:12:12,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:12:12,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:12:12,896 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 03:12:12,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:12:12,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:12:12,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:12:12,897 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:12:12,897 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 748862a4a10e7eb5031b0856b76be837613208b8 [2020-11-30 03:12:13,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:12:13,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:12:13,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:12:13,285 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:12:13,286 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:12:13,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float12.c [2020-11-30 03:12:13,383 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/data/da19a5102/a7242f87c4074eb6aa31337e00ecc9fe/FLAG94486eefd [2020-11-30 03:12:13,884 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:12:13,885 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/sv-benchmarks/c/floats-cbmc-regression/float12.c [2020-11-30 03:12:13,896 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/data/da19a5102/a7242f87c4074eb6aa31337e00ecc9fe/FLAG94486eefd [2020-11-30 03:12:14,258 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/data/da19a5102/a7242f87c4074eb6aa31337e00ecc9fe [2020-11-30 03:12:14,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:12:14,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:12:14,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:12:14,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:12:14,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:12:14,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:12:14" (1/1) ... [2020-11-30 03:12:14,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31149ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:14, skipping insertion in model container [2020-11-30 03:12:14,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:12:14" (1/1) ... [2020-11-30 03:12:14,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:12:14,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:12:14,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:12:14,531 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:12:14,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:12:14,583 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:12:14,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:14 WrapperNode [2020-11-30 03:12:14,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:12:14,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:12:14,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:12:14,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:12:14,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:14" (1/1) ... [2020-11-30 03:12:14,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:14" (1/1) ... [2020-11-30 03:12:14,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:12:14,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:12:14,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:12:14,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:12:14,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:14" (1/1) ... [2020-11-30 03:12:14,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:14" (1/1) ... [2020-11-30 03:12:14,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:14" (1/1) ... [2020-11-30 03:12:14,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:14" (1/1) ... [2020-11-30 03:12:14,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:14" (1/1) ... [2020-11-30 03:12:14,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:14" (1/1) ... [2020-11-30 03:12:14,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:14" (1/1) ... [2020-11-30 03:12:14,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:12:14,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:12:14,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:12:14,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:12:14,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:12:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:12:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:12:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 03:12:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:12:15,000 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:12:15,001 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-30 03:12:15,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:12:15 BoogieIcfgContainer [2020-11-30 03:12:15,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:12:15,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:12:15,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:12:15,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:12:15,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:12:14" (1/3) ... [2020-11-30 03:12:15,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c098d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:12:15, skipping insertion in model container [2020-11-30 03:12:15,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:14" (2/3) ... [2020-11-30 03:12:15,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c098d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:12:15, skipping insertion in model container [2020-11-30 03:12:15,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:12:15" (3/3) ... [2020-11-30 03:12:15,015 INFO L111 eAbstractionObserver]: Analyzing ICFG float12.c [2020-11-30 03:12:15,027 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:12:15,032 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 03:12:15,047 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 03:12:15,075 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:12:15,075 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:12:15,075 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:12:15,075 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:12:15,076 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:12:15,076 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:12:15,076 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:12:15,076 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:12:15,090 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-11-30 03:12:15,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 03:12:15,096 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:15,097 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 03:12:15,097 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:15,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:15,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1554194, now seen corresponding path program 1 times [2020-11-30 03:12:15,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:12:15,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685320953] [2020-11-30 03:12:15,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:12:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:12:15,283 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:12:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:12:15,321 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:12:15,347 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 03:12:15,348 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 03:12:15,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 03:12:15,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:12:15 BoogieIcfgContainer [2020-11-30 03:12:15,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:12:15,375 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:12:15,375 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:12:15,380 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:12:15,381 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:12:15" (3/4) ... [2020-11-30 03:12:15,386 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 03:12:15,387 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:12:15,393 INFO L168 Benchmark]: Toolchain (without parser) took 1126.04 ms. Allocated memory is still 104.9 MB. Free memory was 68.8 MB in the beginning and 56.4 MB in the end (delta: 12.5 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:15,396 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 104.9 MB. Free memory was 85.0 MB in the beginning and 84.9 MB in the end (delta: 61.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:12:15,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.14 ms. Allocated memory is still 104.9 MB. Free memory was 68.6 MB in the beginning and 82.5 MB in the end (delta: -13.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:15,401 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.37 ms. Allocated memory is still 104.9 MB. Free memory was 82.5 MB in the beginning and 81.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:12:15,403 INFO L168 Benchmark]: Boogie Preprocessor took 23.26 ms. Allocated memory is still 104.9 MB. Free memory was 81.1 MB in the beginning and 80.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:15,404 INFO L168 Benchmark]: RCFGBuilder took 357.00 ms. Allocated memory is still 104.9 MB. Free memory was 80.1 MB in the beginning and 68.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:15,405 INFO L168 Benchmark]: TraceAbstraction took 368.21 ms. Allocated memory is still 104.9 MB. Free memory was 67.8 MB in the beginning and 56.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:15,406 INFO L168 Benchmark]: Witness Printer took 13.29 ms. Allocated memory is still 104.9 MB. Free memory was 56.7 MB in the beginning and 56.4 MB in the end (delta: 327.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:12:15,420 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 104.9 MB. Free memory was 85.0 MB in the beginning and 84.9 MB in the end (delta: 61.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 319.14 ms. Allocated memory is still 104.9 MB. Free memory was 68.6 MB in the beginning and 82.5 MB in the end (delta: -13.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.37 ms. Allocated memory is still 104.9 MB. Free memory was 82.5 MB in the beginning and 81.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.26 ms. Allocated memory is still 104.9 MB. Free memory was 81.1 MB in the beginning and 80.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 357.00 ms. Allocated memory is still 104.9 MB. Free memory was 80.1 MB in the beginning and 68.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 368.21 ms. Allocated memory is still 104.9 MB. Free memory was 67.8 MB in the beginning and 56.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 13.29 ms. Allocated memory is still 104.9 MB. Free memory was 56.7 MB in the beginning and 56.4 MB in the end (delta: 327.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L8] float f = __VERIFIER_nondet_float(); [L9] double d; [L10] unsigned char x = __VERIFIER_nondet_uchar(); [L12] d=f [L14] COND TRUE f==x [L15] COND TRUE !(d==x) [L3] __assert_fail("0", "float12.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:12:18,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:12:18,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:12:18,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:12:18,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:12:18,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:12:18,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:12:18,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:12:18,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:12:18,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:12:18,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:12:18,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:12:18,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:12:18,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:12:18,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:12:18,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:12:18,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:12:18,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:12:18,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:12:18,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:12:18,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:12:18,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:12:18,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:12:18,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:12:18,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:12:18,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:12:18,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:12:18,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:12:18,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:12:18,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:12:18,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:12:18,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:12:18,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:12:18,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:12:18,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:12:18,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:12:18,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:12:18,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:12:18,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:12:18,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:12:18,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:12:18,443 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 03:12:18,497 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:12:18,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:12:18,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:12:18,501 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:12:18,501 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:12:18,501 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:12:18,501 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:12:18,502 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:12:18,502 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:12:18,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:12:18,504 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:12:18,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:12:18,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:12:18,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:12:18,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:12:18,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:12:18,506 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:12:18,506 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 03:12:18,506 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 03:12:18,507 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:12:18,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:12:18,507 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:12:18,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:12:18,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:12:18,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 03:12:18,508 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:12:18,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:12:18,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:12:18,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:12:18,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:12:18,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:12:18,510 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 03:12:18,511 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 03:12:18,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:12:18,511 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:12:18,511 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:12:18,512 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-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 748862a4a10e7eb5031b0856b76be837613208b8 [2020-11-30 03:12:18,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:12:18,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:12:18,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:12:18,996 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:12:18,998 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:12:18,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float12.c [2020-11-30 03:12:19,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/data/6d60a96e1/3abefd49d077408f9f5f31c8fc6c7ef4/FLAG4ce55d62c [2020-11-30 03:12:19,666 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:12:19,667 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/sv-benchmarks/c/floats-cbmc-regression/float12.c [2020-11-30 03:12:19,674 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/data/6d60a96e1/3abefd49d077408f9f5f31c8fc6c7ef4/FLAG4ce55d62c [2020-11-30 03:12:20,025 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/data/6d60a96e1/3abefd49d077408f9f5f31c8fc6c7ef4 [2020-11-30 03:12:20,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:12:20,030 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:12:20,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:12:20,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:12:20,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:12:20,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:12:20" (1/1) ... [2020-11-30 03:12:20,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6420bb0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:20, skipping insertion in model container [2020-11-30 03:12:20,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:12:20" (1/1) ... [2020-11-30 03:12:20,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:12:20,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:12:20,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:12:20,270 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:12:20,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:12:20,307 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:12:20,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:20 WrapperNode [2020-11-30 03:12:20,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:12:20,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:12:20,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:12:20,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:12:20,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:20" (1/1) ... [2020-11-30 03:12:20,329 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:20" (1/1) ... [2020-11-30 03:12:20,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:12:20,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:12:20,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:12:20,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:12:20,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:20" (1/1) ... [2020-11-30 03:12:20,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:20" (1/1) ... [2020-11-30 03:12:20,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:20" (1/1) ... [2020-11-30 03:12:20,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:20" (1/1) ... [2020-11-30 03:12:20,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:20" (1/1) ... [2020-11-30 03:12:20,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:20" (1/1) ... [2020-11-30 03:12:20,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:20" (1/1) ... [2020-11-30 03:12:20,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:12:20,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:12:20,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:12:20,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:12:20,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:12:20,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 03:12:20,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:12:20,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:12:20,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:12:21,074 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:12:21,074 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-30 03:12:21,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:12:21 BoogieIcfgContainer [2020-11-30 03:12:21,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:12:21,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:12:21,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:12:21,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:12:21,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:12:20" (1/3) ... [2020-11-30 03:12:21,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b631e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:12:21, skipping insertion in model container [2020-11-30 03:12:21,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:12:20" (2/3) ... [2020-11-30 03:12:21,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b631e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:12:21, skipping insertion in model container [2020-11-30 03:12:21,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:12:21" (3/3) ... [2020-11-30 03:12:21,090 INFO L111 eAbstractionObserver]: Analyzing ICFG float12.c [2020-11-30 03:12:21,118 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:12:21,122 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 03:12:21,137 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 03:12:21,182 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:12:21,182 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:12:21,182 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:12:21,182 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:12:21,183 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:12:21,183 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:12:21,183 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:12:21,183 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:12:21,202 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-30 03:12:21,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 03:12:21,208 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:21,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 03:12:21,209 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:21,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:21,223 INFO L82 PathProgramCache]: Analyzing trace with hash 28693795, now seen corresponding path program 1 times [2020-11-30 03:12:21,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:12:21,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718017715] [2020-11-30 03:12:21,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 03:12:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:21,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 03:12:21,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:12:22,308 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-11-30 03:12:22,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:12:22,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:12:24,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:12:24,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718017715] [2020-11-30 03:12:24,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:12:24,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-30 03:12:24,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941949306] [2020-11-30 03:12:24,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 03:12:24,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:12:24,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 03:12:24,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:12:24,696 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2020-11-30 03:12:29,646 WARN L193 SmtUtils]: Spent 3.99 s on a formula simplification. DAG size of input: 13 DAG size of output: 11 [2020-11-30 03:12:30,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:30,119 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-11-30 03:12:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:12:30,133 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-11-30 03:12:30,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:30,150 INFO L225 Difference]: With dead ends: 16 [2020-11-30 03:12:30,150 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 03:12:30,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-30 03:12:30,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 03:12:30,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 03:12:30,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 03:12:30,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 03:12:30,181 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-11-30 03:12:30,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:30,182 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 03:12:30,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 03:12:30,182 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 03:12:30,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 03:12:30,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 03:12:30,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 03:12:30,401 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 03:12:30,401 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 03:12:30,401 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 03:12:30,401 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 03:12:30,401 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 03:12:30,401 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-11-30 03:12:30,402 INFO L274 CegarLoopResult]: For program point L14(lines 14 15) no Hoare annotation was computed. [2020-11-30 03:12:30,402 INFO L274 CegarLoopResult]: For program point L6(lines 6 16) no Hoare annotation was computed. [2020-11-30 03:12:30,402 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 03:12:30,402 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 03:12:30,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:12:30 BoogieIcfgContainer [2020-11-30 03:12:30,407 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:12:30,408 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:12:30,408 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:12:30,409 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:12:30,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:12:21" (3/4) ... [2020-11-30 03:12:30,419 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 03:12:30,437 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-30 03:12:30,438 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 03:12:30,439 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 03:12:30,439 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 03:12:30,483 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_17f058bd-1212-4348-a6a1-74f66d2acdb2/bin/utaipan/witness.graphml [2020-11-30 03:12:30,483 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:12:30,490 INFO L168 Benchmark]: Toolchain (without parser) took 10458.19 ms. Allocated memory was 65.0 MB in the beginning and 90.2 MB in the end (delta: 25.2 MB). Free memory was 48.5 MB in the beginning and 53.1 MB in the end (delta: -4.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:30,491 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 65.0 MB. Free memory was 47.4 MB in the beginning and 47.3 MB in the end (delta: 57.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:12:30,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.20 ms. Allocated memory is still 65.0 MB. Free memory was 48.2 MB in the beginning and 38.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:30,501 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.34 ms. Allocated memory is still 65.0 MB. Free memory was 38.7 MB in the beginning and 37.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:30,502 INFO L168 Benchmark]: Boogie Preprocessor took 90.12 ms. Allocated memory is still 65.0 MB. Free memory was 37.3 MB in the beginning and 49.3 MB in the end (delta: -12.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:30,504 INFO L168 Benchmark]: RCFGBuilder took 636.22 ms. Allocated memory is still 65.0 MB. Free memory was 49.1 MB in the beginning and 38.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:30,505 INFO L168 Benchmark]: TraceAbstraction took 9328.92 ms. Allocated memory was 65.0 MB in the beginning and 90.2 MB in the end (delta: 25.2 MB). Free memory was 38.4 MB in the beginning and 55.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:30,507 INFO L168 Benchmark]: Witness Printer took 75.08 ms. Allocated memory is still 90.2 MB. Free memory was 55.1 MB in the beginning and 53.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:30,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 65.0 MB. Free memory was 47.4 MB in the beginning and 47.3 MB in the end (delta: 57.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 276.20 ms. Allocated memory is still 65.0 MB. Free memory was 48.2 MB in the beginning and 38.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.34 ms. Allocated memory is still 65.0 MB. Free memory was 38.7 MB in the beginning and 37.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.12 ms. Allocated memory is still 65.0 MB. Free memory was 37.3 MB in the beginning and 49.3 MB in the end (delta: -12.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 636.22 ms. Allocated memory is still 65.0 MB. Free memory was 49.1 MB in the beginning and 38.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9328.92 ms. Allocated memory was 65.0 MB in the beginning and 90.2 MB in the end (delta: 25.2 MB). Free memory was 38.4 MB in the beginning and 55.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * Witness Printer took 75.08 ms. Allocated memory is still 90.2 MB. Free memory was 55.1 MB in the beginning and 53.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, 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: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 2 QuantifiedInterpolants, 156 SizeOfPredicates, 6 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 proved your program to be correct! Received shutdown request...