./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.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_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/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 716c28290dbb6f2a00a15a2121f6ea544c27813b ............................................................................................................................................................................................................................................................................................................ 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_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/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 716c28290dbb6f2a00a15a2121f6ea544c27813b ........................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:33:11,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:33:11,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:33:11,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:33:11,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:33:11,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:33:11,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:33:11,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:33:11,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:33:11,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:33:11,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:33:11,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:33:11,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:33:11,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:33:11,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:33:11,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:33:11,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:33:11,946 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:33:11,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:33:11,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:33:11,958 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:33:11,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:33:11,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:33:11,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:33:11,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:33:11,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:33:11,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:33:11,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:33:11,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:33:11,983 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:33:11,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:33:11,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:33:11,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:33:11,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:33:12,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:33:12,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:33:12,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:33:12,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:33:12,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:33:12,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:33:12,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:33:12,032 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:33:12,079 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:33:12,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:33:12,081 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:33:12,082 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:33:12,082 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:33:12,082 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:33:12,083 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:33:12,083 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:33:12,083 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:33:12,083 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:33:12,085 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:33:12,085 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:33:12,085 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:33:12,086 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:33:12,086 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:33:12,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:33:12,087 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:33:12,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:33:12,087 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:33:12,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:33:12,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:33:12,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:33:12,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:33:12,089 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:33:12,089 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:33:12,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:33:12,090 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:33:12,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:33:12,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:33:12,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:33:12,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:33:12,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:33:12,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:33:12,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:33:12,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:33:12,094 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:33:12,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:33:12,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:33:12,095 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:33:12,095 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:33:12,095 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_51a7df60-a606-494e-8fdd-7119d92ee5cd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 716c28290dbb6f2a00a15a2121f6ea544c27813b [2020-11-28 07:33:12,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:33:12,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:33:12,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:33:12,419 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:33:12,424 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:33:12,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2020-11-28 07:33:12,497 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/data/218c652e6/bd50439c29f94a5bb622346f019fb63b/FLAGa1ec2aeba [2020-11-28 07:33:13,001 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:33:13,002 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2020-11-28 07:33:13,008 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/data/218c652e6/bd50439c29f94a5bb622346f019fb63b/FLAGa1ec2aeba [2020-11-28 07:33:13,359 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/data/218c652e6/bd50439c29f94a5bb622346f019fb63b [2020-11-28 07:33:13,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:33:13,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:33:13,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:33:13,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:33:13,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:33:13,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:33:13" (1/1) ... [2020-11-28 07:33:13,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e246fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:13, skipping insertion in model container [2020-11-28 07:33:13,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:33:13" (1/1) ... [2020-11-28 07:33:13,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:33:13,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:33:13,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:33:13,610 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:33:13,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:33:13,652 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:33:13,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:13 WrapperNode [2020-11-28 07:33:13,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:33:13,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:33:13,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:33:13,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:33:13,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:13" (1/1) ... [2020-11-28 07:33:13,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:13" (1/1) ... [2020-11-28 07:33:13,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:33:13,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:33:13,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:33:13,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:33:13,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:13" (1/1) ... [2020-11-28 07:33:13,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:13" (1/1) ... [2020-11-28 07:33:13,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:13" (1/1) ... [2020-11-28 07:33:13,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:13" (1/1) ... [2020-11-28 07:33:13,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:13" (1/1) ... [2020-11-28 07:33:13,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:13" (1/1) ... [2020-11-28 07:33:13,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:13" (1/1) ... [2020-11-28 07:33:13,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:33:13,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:33:13,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:33:13,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:33:13,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/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 [2020-11-28 07:33:13,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:33:13,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:33:13,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-28 07:33:13,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 07:33:13,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-28 07:33:13,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:33:13,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:33:13,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 07:33:13,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:33:14,635 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:33:14,636 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-28 07:33:14,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:33:14 BoogieIcfgContainer [2020-11-28 07:33:14,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:33:14,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:33:14,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:33:14,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:33:14,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:33:13" (1/3) ... [2020-11-28 07:33:14,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ebc8de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:33:14, skipping insertion in model container [2020-11-28 07:33:14,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:13" (2/3) ... [2020-11-28 07:33:14,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ebc8de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:33:14, skipping insertion in model container [2020-11-28 07:33:14,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:33:14" (3/3) ... [2020-11-28 07:33:14,647 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2020-11-28 07:33:14,657 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:33:14,661 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:33:14,676 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:33:14,706 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:33:14,707 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:33:14,707 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:33:14,707 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:33:14,707 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:33:14,707 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:33:14,707 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:33:14,707 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:33:14,717 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-11-28 07:33:14,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 07:33:14,741 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:33:14,741 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:33:14,741 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:33:14,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:33:14,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1370626470, now seen corresponding path program 1 times [2020-11-28 07:33:14,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:33:14,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176319818] [2020-11-28 07:33:14,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:33:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:33:14,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:33:14,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176319818] [2020-11-28 07:33:14,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:33:14,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:33:14,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309951698] [2020-11-28 07:33:14,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:33:14,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:33:14,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:33:14,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:33:14,936 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-11-28 07:33:14,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:33:14,952 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-11-28 07:33:14,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:33:14,954 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-28 07:33:14,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:33:14,972 INFO L225 Difference]: With dead ends: 35 [2020-11-28 07:33:14,976 INFO L226 Difference]: Without dead ends: 16 [2020-11-28 07:33:14,979 INFO L677 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 [2020-11-28 07:33:14,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-28 07:33:15,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-28 07:33:15,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 07:33:15,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2020-11-28 07:33:15,010 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 8 [2020-11-28 07:33:15,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:33:15,010 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2020-11-28 07:33:15,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:33:15,011 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2020-11-28 07:33:15,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 07:33:15,012 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:33:15,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:33:15,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:33:15,012 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:33:15,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:33:15,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1276344261, now seen corresponding path program 1 times [2020-11-28 07:33:15,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:33:15,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003816108] [2020-11-28 07:33:15,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:33:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:33:15,087 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:33:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:33:15,144 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:33:15,172 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:33:15,172 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:33:15,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:33:15,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:33:15 BoogieIcfgContainer [2020-11-28 07:33:15,206 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:33:15,207 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:33:15,207 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:33:15,208 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:33:15,208 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:33:14" (3/4) ... [2020-11-28 07:33:15,211 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 07:33:15,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:33:15,215 INFO L168 Benchmark]: Toolchain (without parser) took 1849.25 ms. Allocated memory is still 123.7 MB. Free memory was 94.8 MB in the beginning and 81.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:33:15,216 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 79.7 MB. Free memory was 41.4 MB in the beginning and 41.4 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:33:15,217 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.38 ms. Allocated memory is still 123.7 MB. Free memory was 94.3 MB in the beginning and 98.2 MB in the end (delta: -3.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:33:15,218 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.13 ms. Allocated memory is still 123.7 MB. Free memory was 98.2 MB in the beginning and 96.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:33:15,219 INFO L168 Benchmark]: Boogie Preprocessor took 29.32 ms. Allocated memory is still 123.7 MB. Free memory was 96.4 MB in the beginning and 94.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:33:15,219 INFO L168 Benchmark]: RCFGBuilder took 913.70 ms. Allocated memory is still 123.7 MB. Free memory was 94.7 MB in the beginning and 56.4 MB in the end (delta: 38.3 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:33:15,220 INFO L168 Benchmark]: TraceAbstraction took 566.90 ms. Allocated memory is still 123.7 MB. Free memory was 55.8 MB in the beginning and 81.9 MB in the end (delta: -26.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:33:15,221 INFO L168 Benchmark]: Witness Printer took 4.53 ms. Allocated memory is still 123.7 MB. Free memory was 81.9 MB in the beginning and 81.2 MB in the end (delta: 667.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:33:15,230 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 79.7 MB. Free memory was 41.4 MB in the beginning and 41.4 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 288.38 ms. Allocated memory is still 123.7 MB. Free memory was 94.3 MB in the beginning and 98.2 MB in the end (delta: -3.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.13 ms. Allocated memory is still 123.7 MB. Free memory was 98.2 MB in the beginning and 96.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.32 ms. Allocated memory is still 123.7 MB. Free memory was 96.4 MB in the beginning and 94.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 913.70 ms. Allocated memory is still 123.7 MB. Free memory was 94.7 MB in the beginning and 56.4 MB in the end (delta: 38.3 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 566.90 ms. Allocated memory is still 123.7 MB. Free memory was 55.8 MB in the beginning and 81.9 MB in the end (delta: -26.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.53 ms. Allocated memory is still 123.7 MB. Free memory was 81.9 MB in the beginning and 81.2 MB in the end (delta: 667.1 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 someBinaryDOUBLEComparisonOperation at line 97, overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryArithmeticDOUBLEoperation at line 55. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; [L93] double x = 0.0; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND FALSE !(j0 < 20) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L53] COND TRUE j0 > 51 [L54] COND TRUE j0 == 0x400 [L55] return x + x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] double res = ceil_double(x); [L97] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L3] __assert_fail("0", "double_req_bl_1092b.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 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=18occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:33:17,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:33:17,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:33:17,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:33:17,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:33:17,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:33:17,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:33:17,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:33:17,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:33:17,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:33:17,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:33:17,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:33:17,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:33:17,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:33:17,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:33:17,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:33:17,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:33:17,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:33:17,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:33:17,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:33:17,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:33:17,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:33:17,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:33:17,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:33:17,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:33:17,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:33:17,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:33:17,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:33:17,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:33:17,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:33:17,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:33:17,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:33:17,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:33:17,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:33:17,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:33:17,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:33:17,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:33:17,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:33:17,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:33:17,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:33:17,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:33:17,807 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:33:17,847 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:33:17,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:33:17,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:33:17,850 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:33:17,850 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:33:17,851 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:33:17,851 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:33:17,851 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:33:17,851 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:33:17,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:33:17,854 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:33:17,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:33:17,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:33:17,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:33:17,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:33:17,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:33:17,855 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:33:17,855 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:33:17,856 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:33:17,856 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:33:17,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:33:17,856 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:33:17,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:33:17,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:33:17,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:33:17,857 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:33:17,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:33:17,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:33:17,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:33:17,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:33:17,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:33:17,859 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:33:17,859 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:33:17,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:33:17,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:33:17,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:33:17,860 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_51a7df60-a606-494e-8fdd-7119d92ee5cd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 716c28290dbb6f2a00a15a2121f6ea544c27813b [2020-11-28 07:33:18,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:33:18,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:33:18,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:33:18,252 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:33:18,253 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:33:18,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2020-11-28 07:33:18,329 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/data/79af00643/0f8f8f480f20499cb132a88f0c51a45b/FLAG54b687928 [2020-11-28 07:33:18,892 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:33:18,892 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2020-11-28 07:33:18,900 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/data/79af00643/0f8f8f480f20499cb132a88f0c51a45b/FLAG54b687928 [2020-11-28 07:33:19,247 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/data/79af00643/0f8f8f480f20499cb132a88f0c51a45b [2020-11-28 07:33:19,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:33:19,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:33:19,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:33:19,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:33:19,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:33:19,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:33:19" (1/1) ... [2020-11-28 07:33:19,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@270acb8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:19, skipping insertion in model container [2020-11-28 07:33:19,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:33:19" (1/1) ... [2020-11-28 07:33:19,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:33:19,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:33:19,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:33:19,439 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:33:19,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:33:19,495 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:33:19,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:19 WrapperNode [2020-11-28 07:33:19,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:33:19,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:33:19,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:33:19,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:33:19,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:19" (1/1) ... [2020-11-28 07:33:19,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:19" (1/1) ... [2020-11-28 07:33:19,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:33:19,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:33:19,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:33:19,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:33:19,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:19" (1/1) ... [2020-11-28 07:33:19,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:19" (1/1) ... [2020-11-28 07:33:19,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:19" (1/1) ... [2020-11-28 07:33:19,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:19" (1/1) ... [2020-11-28 07:33:19,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:19" (1/1) ... [2020-11-28 07:33:19,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:19" (1/1) ... [2020-11-28 07:33:19,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:19" (1/1) ... [2020-11-28 07:33:19,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:33:19,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:33:19,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:33:19,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:33:19,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/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 [2020-11-28 07:33:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-28 07:33:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-28 07:33:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:33:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:33:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 07:33:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:33:19,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:33:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 07:33:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:33:21,132 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:33:21,132 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-28 07:33:21,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:33:21 BoogieIcfgContainer [2020-11-28 07:33:21,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:33:21,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:33:21,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:33:21,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:33:21,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:33:19" (1/3) ... [2020-11-28 07:33:21,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b1fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:33:21, skipping insertion in model container [2020-11-28 07:33:21,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:33:19" (2/3) ... [2020-11-28 07:33:21,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b1fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:33:21, skipping insertion in model container [2020-11-28 07:33:21,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:33:21" (3/3) ... [2020-11-28 07:33:21,141 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2020-11-28 07:33:21,151 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:33:21,155 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:33:21,163 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:33:21,182 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:33:21,182 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:33:21,182 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:33:21,183 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:33:21,183 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:33:21,183 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:33:21,183 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:33:21,183 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:33:21,196 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-28 07:33:21,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 07:33:21,201 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:33:21,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:33:21,202 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:33:21,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:33:21,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2020-11-28 07:33:21,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:33:21,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [656480007] [2020-11-28 07:33:21,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/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 [2020-11-28 07:33:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:33:21,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 07:33:21,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:33:21,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:33:21,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:33:21,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:33:21,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [656480007] [2020-11-28 07:33:21,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:33:21,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:33:21,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004962883] [2020-11-28 07:33:21,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:33:21,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:33:21,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:33:21,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:33:21,392 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-28 07:33:21,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:33:21,431 INFO L93 Difference]: Finished difference Result 65 states and 103 transitions. [2020-11-28 07:33:21,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:33:21,432 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-28 07:33:21,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:33:21,442 INFO L225 Difference]: With dead ends: 65 [2020-11-28 07:33:21,443 INFO L226 Difference]: Without dead ends: 30 [2020-11-28 07:33:21,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:33:21,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-28 07:33:21,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-28 07:33:21,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-28 07:33:21,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-11-28 07:33:21,483 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2020-11-28 07:33:21,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:33:21,483 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-11-28 07:33:21,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:33:21,483 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-28 07:33:21,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 07:33:21,484 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:33:21,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:33:21,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:33:21,702 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:33:21,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:33:21,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2020-11-28 07:33:21,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:33:21,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448541623] [2020-11-28 07:33:21,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-28 07:33:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:33:21,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 07:33:21,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:33:22,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:33:22,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:33:22,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:33:22,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448541623] [2020-11-28 07:33:22,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:33:22,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-28 07:33:22,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775743885] [2020-11-28 07:33:22,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 07:33:22,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:33:22,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 07:33:22,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 07:33:22,140 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 8 states. [2020-11-28 07:33:22,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:33:22,604 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2020-11-28 07:33:22,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 07:33:22,606 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-28 07:33:22,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:33:22,607 INFO L225 Difference]: With dead ends: 44 [2020-11-28 07:33:22,607 INFO L226 Difference]: Without dead ends: 24 [2020-11-28 07:33:22,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-11-28 07:33:22,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-28 07:33:22,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2020-11-28 07:33:22,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-28 07:33:22,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-11-28 07:33:22,612 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2020-11-28 07:33:22,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:33:22,612 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-11-28 07:33:22,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 07:33:22,612 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-28 07:33:22,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 07:33:22,613 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:33:22,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:33:22,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:33:22,814 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:33:22,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:33:22,815 INFO L82 PathProgramCache]: Analyzing trace with hash -713684991, now seen corresponding path program 1 times [2020-11-28 07:33:22,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:33:22,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87482273] [2020-11-28 07:33:22,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-28 07:33:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:33:22,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 07:33:22,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:33:23,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:33:23,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:33:23,686 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-28 07:33:23,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:33:23,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87482273] [2020-11-28 07:33:23,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:33:23,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-28 07:33:23,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883576946] [2020-11-28 07:33:23,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:33:23,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:33:23,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:33:23,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:33:23,933 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 6 states. [2020-11-28 07:33:24,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:33:24,366 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-11-28 07:33:24,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:33:24,373 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-28 07:33:24,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:33:24,373 INFO L225 Difference]: With dead ends: 24 [2020-11-28 07:33:24,373 INFO L226 Difference]: Without dead ends: 17 [2020-11-28 07:33:24,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:33:24,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-28 07:33:24,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-28 07:33:24,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-28 07:33:24,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-11-28 07:33:24,378 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2020-11-28 07:33:24,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:33:24,378 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-11-28 07:33:24,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:33:24,378 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-11-28 07:33:24,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 07:33:24,379 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:33:24,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:33:24,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 07:33:24,588 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:33:24,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:33:24,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1786240041, now seen corresponding path program 1 times [2020-11-28 07:33:24,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:33:24,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116436631] [2020-11-28 07:33:24,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-28 07:33:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:33:24,811 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:33:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:33:24,974 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:33:25,057 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-28 07:33:25,058 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:33:25,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 07:33:25,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:33:25 BoogieIcfgContainer [2020-11-28 07:33:25,290 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:33:25,290 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:33:25,290 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:33:25,291 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:33:25,291 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:33:21" (3/4) ... [2020-11-28 07:33:25,292 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 07:33:25,347 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_51a7df60-a606-494e-8fdd-7119d92ee5cd/bin/utaipan/witness.graphml [2020-11-28 07:33:25,347 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:33:25,349 INFO L168 Benchmark]: Toolchain (without parser) took 6096.26 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 35.8 MB in the beginning and 42.7 MB in the end (delta: -7.0 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:33:25,349 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 39.3 MB in the end (delta: 43.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:33:25,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.75 ms. Allocated memory is still 56.6 MB. Free memory was 35.5 MB in the beginning and 40.8 MB in the end (delta: -5.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:33:25,350 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.78 ms. Allocated memory is still 56.6 MB. Free memory was 40.8 MB in the beginning and 39.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:33:25,351 INFO L168 Benchmark]: Boogie Preprocessor took 33.15 ms. Allocated memory is still 56.6 MB. Free memory was 39.1 MB in the beginning and 37.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:33:25,352 INFO L168 Benchmark]: RCFGBuilder took 1528.06 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 37.3 MB in the beginning and 51.7 MB in the end (delta: -14.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:33:25,352 INFO L168 Benchmark]: TraceAbstraction took 4154.53 ms. Allocated memory is still 75.5 MB. Free memory was 51.4 MB in the beginning and 45.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:33:25,353 INFO L168 Benchmark]: Witness Printer took 56.95 ms. Allocated memory is still 75.5 MB. Free memory was 45.6 MB in the beginning and 42.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:33:25,356 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 39.3 MB in the end (delta: 43.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.75 ms. Allocated memory is still 56.6 MB. Free memory was 35.5 MB in the beginning and 40.8 MB in the end (delta: -5.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.78 ms. Allocated memory is still 56.6 MB. Free memory was 40.8 MB in the beginning and 39.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.15 ms. Allocated memory is still 56.6 MB. Free memory was 39.1 MB in the beginning and 37.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1528.06 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 37.3 MB in the beginning and 51.7 MB in the end (delta: -14.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4154.53 ms. Allocated memory is still 75.5 MB. Free memory was 51.4 MB in the beginning and 45.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Witness Printer took 56.95 ms. Allocated memory is still 75.5 MB. Free memory was 45.6 MB in the beginning and 42.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double x = 0.0; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L32] COND TRUE j0 < 0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L33] COND TRUE huge_ceil + x > 0.0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L34] COND FALSE !(i0 < 0) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L37] COND TRUE (i0 | i1) != 0 [L38] i0 = 0x3ff00000 [L39] i1 = 0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L77] ieee_double_shape_type iw_u; [L78] iw_u.parts.msw = (i0) [L79] iw_u.parts.lsw = (i1) [L80] EXPR iw_u.value [L80] (x) = iw_u.value [L82] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] double res = ceil_double(x); [L97] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L3] __assert_fail("0", "double_req_bl_1092b.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 107 SDslu, 27 SDs, 0 SdLazy, 28 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 64 ConstructedInterpolants, 5 QuantifiedInterpolants, 3227 SizeOfPredicates, 11 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...