./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE --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 5a8e4ffd9ea97f05ef6346cf53038fe7de9dfb80c74cdd9b6a5c49fbcb6c0f8f ............................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE --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 5a8e4ffd9ea97f05ef6346cf53038fe7de9dfb80c74cdd9b6a5c49fbcb6c0f8f .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:59:49,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:59:49,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:59:49,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:59:49,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:59:49,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:59:49,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:59:49,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:59:49,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:59:49,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:59:49,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:59:49,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:59:49,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:59:49,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:59:49,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:59:49,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:59:49,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:59:49,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:59:49,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:59:50,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:59:50,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:59:50,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:59:50,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:59:50,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:59:50,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:59:50,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:59:50,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:59:50,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:59:50,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:59:50,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:59:50,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:59:50,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:59:50,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:59:50,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:59:50,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:59:50,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:59:50,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:59:50,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:59:50,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:59:50,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:59:50,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:59:50,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:59:50,117 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:59:50,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:59:50,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:59:50,119 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:59:50,120 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:59:50,120 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:59:50,120 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:59:50,120 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:59:50,121 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:59:50,121 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:59:50,122 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:59:50,123 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:59:50,123 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:59:50,123 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:59:50,124 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:59:50,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:59:50,125 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:59:50,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:59:50,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:59:50,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:59:50,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:59:50,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:59:50,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:59:50,127 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:59:50,128 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:59:50,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:59:50,128 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:59:50,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:59:50,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:59:50,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:59:50,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:59:50,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:59:50,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:59:50,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:59:50,133 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:59:50,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:59:50,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:59:50,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:59:50,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:59:50,134 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_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a8e4ffd9ea97f05ef6346cf53038fe7de9dfb80c74cdd9b6a5c49fbcb6c0f8f [2021-10-24 10:59:50,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:59:50,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:59:50,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:59:50,584 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:59:50,585 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:59:50,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-10-24 10:59:50,720 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/data/4341a98e0/e652036f14b0417ebb72467146eaefe0/FLAG7fe50cafa [2021-10-24 10:59:51,324 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:59:51,325 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-10-24 10:59:51,335 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/data/4341a98e0/e652036f14b0417ebb72467146eaefe0/FLAG7fe50cafa [2021-10-24 10:59:51,670 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/data/4341a98e0/e652036f14b0417ebb72467146eaefe0 [2021-10-24 10:59:51,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:59:51,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:59:51,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:59:51,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:59:51,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:59:51,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:59:51" (1/1) ... [2021-10-24 10:59:51,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e8a0f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:51, skipping insertion in model container [2021-10-24 10:59:51,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:59:51" (1/1) ... [2021-10-24 10:59:51,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:59:51,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:59:52,027 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/sv-benchmarks/c/float-newlib/double_req_bl_0832.c[3927,3940] [2021-10-24 10:59:52,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:59:52,042 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:59:52,092 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/sv-benchmarks/c/float-newlib/double_req_bl_0832.c[3927,3940] [2021-10-24 10:59:52,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:59:52,114 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:59:52,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:52 WrapperNode [2021-10-24 10:59:52,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:59:52,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:59:52,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:59:52,116 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:59:52,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:52" (1/1) ... [2021-10-24 10:59:52,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:52" (1/1) ... [2021-10-24 10:59:52,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:59:52,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:59:52,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:59:52,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:59:52,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:52" (1/1) ... [2021-10-24 10:59:52,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:52" (1/1) ... [2021-10-24 10:59:52,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:52" (1/1) ... [2021-10-24 10:59:52,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:52" (1/1) ... [2021-10-24 10:59:52,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:52" (1/1) ... [2021-10-24 10:59:52,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:52" (1/1) ... [2021-10-24 10:59:52,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:52" (1/1) ... [2021-10-24 10:59:52,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:59:52,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:59:52,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:59:52,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:59:52,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:52" (1/1) ... [2021-10-24 10:59:52,247 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:59:52,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:59:52,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:59:52,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:59:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 10:59:52,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:59:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-24 10:59:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-24 10:59:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-24 10:59:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:59:52,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:59:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-24 10:59:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-24 10:59:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 10:59:53,182 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:59:53,183 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-24 10:59:53,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:59:53 BoogieIcfgContainer [2021-10-24 10:59:53,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:59:53,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:59:53,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:59:53,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:59:53,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:59:51" (1/3) ... [2021-10-24 10:59:53,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a54dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:59:53, skipping insertion in model container [2021-10-24 10:59:53,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:52" (2/3) ... [2021-10-24 10:59:53,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a54dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:59:53, skipping insertion in model container [2021-10-24 10:59:53,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:59:53" (3/3) ... [2021-10-24 10:59:53,198 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2021-10-24 10:59:53,206 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:59:53,206 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 10:59:53,290 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:59:53,302 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 10:59:53,303 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 10:59:53,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.7272727272727273) internal successors, (57), 34 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:59:53,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 10:59:53,342 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:59:53,343 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:59:53,344 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:59:53,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:59:53,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1839733346, now seen corresponding path program 1 times [2021-10-24 10:59:53,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:59:53,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672217162] [2021-10-24 10:59:53,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:59:53,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:59:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:59:53,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:59:53,623 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:59:53,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672217162] [2021-10-24 10:59:53,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672217162] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:59:53,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:59:53,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:59:53,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860908453] [2021-10-24 10:59:53,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 10:59:53,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:59:53,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 10:59:53,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:59:53,655 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.7272727272727273) internal successors, (57), 34 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:59:53,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:59:53,686 INFO L93 Difference]: Finished difference Result 68 states and 111 transitions. [2021-10-24 10:59:53,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 10:59:53,688 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-24 10:59:53,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:59:53,703 INFO L225 Difference]: With dead ends: 68 [2021-10-24 10:59:53,704 INFO L226 Difference]: Without dead ends: 32 [2021-10-24 10:59:53,709 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:59:53,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-24 10:59:53,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-24 10:59:53,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:59:53,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2021-10-24 10:59:53,757 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 10 [2021-10-24 10:59:53,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:59:53,759 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2021-10-24 10:59:53,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:59:53,759 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2021-10-24 10:59:53,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-24 10:59:53,761 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:59:53,761 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:59:53,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 10:59:53,762 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:59:53,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:59:53,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1636958342, now seen corresponding path program 1 times [2021-10-24 10:59:53,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:59:53,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885290324] [2021-10-24 10:59:53,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:59:53,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:59:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:59:53,887 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:59:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:59:54,020 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-24 10:59:54,020 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:59:54,023 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:59:54,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 10:59:54,034 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:59:54,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:59:54 BoogieIcfgContainer [2021-10-24 10:59:54,124 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:59:54,127 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:59:54,127 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:59:54,127 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:59:54,128 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:59:53" (3/4) ... [2021-10-24 10:59:54,132 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 10:59:54,133 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:59:54,136 INFO L168 Benchmark]: Toolchain (without parser) took 2458.58 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 57.7 MB in the beginning and 71.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:59:54,138 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory was 62.9 MB in the beginning and 62.8 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:59:54,141 INFO L168 Benchmark]: CACSL2BoogieTranslator took 436.56 ms. Allocated memory is still 92.3 MB. Free memory was 57.5 MB in the beginning and 65.1 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:59:54,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.44 ms. Allocated memory is still 92.3 MB. Free memory was 65.1 MB in the beginning and 63.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:59:54,151 INFO L168 Benchmark]: Boogie Preprocessor took 45.23 ms. Allocated memory is still 92.3 MB. Free memory was 63.0 MB in the beginning and 61.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:59:54,152 INFO L168 Benchmark]: RCFGBuilder took 963.53 ms. Allocated memory is still 92.3 MB. Free memory was 61.2 MB in the beginning and 42.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-24 10:59:54,153 INFO L168 Benchmark]: TraceAbstraction took 936.65 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 42.0 MB in the beginning and 71.6 MB in the end (delta: -29.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:59:54,154 INFO L168 Benchmark]: Witness Printer took 6.32 ms. Allocated memory is still 117.4 MB. Free memory was 71.6 MB in the beginning and 71.3 MB in the end (delta: 292.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:59:54,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory was 62.9 MB in the beginning and 62.8 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 436.56 ms. Allocated memory is still 92.3 MB. Free memory was 57.5 MB in the beginning and 65.1 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.44 ms. Allocated memory is still 92.3 MB. Free memory was 65.1 MB in the beginning and 63.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.23 ms. Allocated memory is still 92.3 MB. Free memory was 63.0 MB in the beginning and 61.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 963.53 ms. Allocated memory is still 92.3 MB. Free memory was 61.2 MB in the beginning and 42.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 936.65 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 42.0 MB in the beginning and 71.6 MB in the end (delta: -29.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.32 ms. Allocated memory is still 117.4 MB. Free memory was 71.6 MB in the beginning and 71.3 MB in the end (delta: 292.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 147]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 23, overapproximation of bitwiseAnd at line 56, overapproximation of someBinaryArithmeticDOUBLEoperation at line 73, overapproximation of someBinaryDOUBLEComparisonOperation at line 146. Possible FailurePath: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; [L139] double x = __VERIFIER_nondet_double(); [L141] COND TRUE x == 0.0 || x == -0.0 [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={11:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={11:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L59] COND TRUE hx >= 0x40862E42 VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={11:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L60] COND FALSE !(hx >= 0x7ff00000) VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={11:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L72] COND TRUE x > o_threshold_exp [L73] return huge_exp * huge_exp; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={11:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L143] double res = __ieee754_exp(x); [L146] COND TRUE res != 1.0 VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={11:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L147] reach_error() VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={11:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 761.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 22.0ms, AutomataDifference: 72.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 44 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 30.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.0ms SsaConstructionTime, 155.1ms SatisfiabilityAnalysisTime, 115.8ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-24 10:59:54,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:59:57,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:59:57,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:59:57,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:59:57,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:59:57,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:59:57,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:59:57,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:59:57,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:59:57,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:59:57,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:59:57,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:59:57,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:59:57,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:59:57,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:59:57,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:59:57,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:59:57,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:59:57,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:59:57,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:59:57,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:59:57,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:59:57,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:59:57,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:59:57,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:59:57,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:59:57,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:59:57,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:59:57,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:59:57,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:59:57,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:59:57,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:59:57,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:59:57,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:59:57,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:59:57,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:59:57,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:59:57,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:59:57,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:59:57,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:59:57,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:59:57,470 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:59:57,531 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:59:57,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:59:57,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:59:57,534 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:59:57,534 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:59:57,534 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:59:57,535 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:59:57,535 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:59:57,535 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:59:57,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:59:57,539 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:59:57,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:59:57,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:59:57,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:59:57,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:59:57,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:59:57,541 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:59:57,541 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:59:57,541 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:59:57,541 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:59:57,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:59:57,542 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:59:57,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:59:57,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:59:57,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:59:57,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:59:57,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:59:57,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:59:57,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:59:57,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:59:57,544 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:59:57,545 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:59:57,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:59:57,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:59:57,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:59:57,546 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a8e4ffd9ea97f05ef6346cf53038fe7de9dfb80c74cdd9b6a5c49fbcb6c0f8f [2021-10-24 10:59:58,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:59:58,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:59:58,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:59:58,106 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:59:58,108 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:59:58,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-10-24 10:59:58,209 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/data/c3fcecbbd/616c41dda469443ea374d938fec60811/FLAGa4d2dd097 [2021-10-24 10:59:58,957 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:59:58,958 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-10-24 10:59:58,971 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/data/c3fcecbbd/616c41dda469443ea374d938fec60811/FLAGa4d2dd097 [2021-10-24 10:59:59,238 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/data/c3fcecbbd/616c41dda469443ea374d938fec60811 [2021-10-24 10:59:59,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:59:59,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:59:59,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:59:59,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:59:59,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:59:59,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:59:59" (1/1) ... [2021-10-24 10:59:59,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a732465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:59, skipping insertion in model container [2021-10-24 10:59:59,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:59:59" (1/1) ... [2021-10-24 10:59:59,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:59:59,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:59:59,553 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/sv-benchmarks/c/float-newlib/double_req_bl_0832.c[3927,3940] [2021-10-24 10:59:59,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:59:59,573 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:59:59,671 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/sv-benchmarks/c/float-newlib/double_req_bl_0832.c[3927,3940] [2021-10-24 10:59:59,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:59:59,699 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:59:59,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:59 WrapperNode [2021-10-24 10:59:59,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:59:59,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:59:59,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:59:59,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:59:59,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:59" (1/1) ... [2021-10-24 10:59:59,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:59" (1/1) ... [2021-10-24 10:59:59,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:59:59,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:59:59,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:59:59,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:59:59,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:59" (1/1) ... [2021-10-24 10:59:59,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:59" (1/1) ... [2021-10-24 10:59:59,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:59" (1/1) ... [2021-10-24 10:59:59,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:59" (1/1) ... [2021-10-24 10:59:59,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:59" (1/1) ... [2021-10-24 10:59:59,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:59" (1/1) ... [2021-10-24 10:59:59,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:59" (1/1) ... [2021-10-24 10:59:59,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:59:59,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:59:59,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:59:59,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:59:59,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:59" (1/1) ... [2021-10-24 10:59:59,861 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:59:59,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:59:59,906 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:59:59,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:59:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-24 10:59:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-24 10:59:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:59:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:59:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-24 10:59:59,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-24 10:59:59,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:59:59,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:59:59,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-24 10:59:59,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 11:00:15,138 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 11:00:15,139 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-24 11:00:15,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:00:15 BoogieIcfgContainer [2021-10-24 11:00:15,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 11:00:15,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 11:00:15,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 11:00:15,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 11:00:15,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:59:59" (1/3) ... [2021-10-24 11:00:15,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c415729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:00:15, skipping insertion in model container [2021-10-24 11:00:15,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:59:59" (2/3) ... [2021-10-24 11:00:15,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c415729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:00:15, skipping insertion in model container [2021-10-24 11:00:15,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:00:15" (3/3) ... [2021-10-24 11:00:15,159 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2021-10-24 11:00:15,166 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 11:00:15,167 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 11:00:15,258 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 11:00:15,275 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 11:00:15,275 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 11:00:15,314 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:00:15,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-24 11:00:15,334 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:00:15,335 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:00:15,337 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:00:15,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:00:15,353 INFO L82 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2021-10-24 11:00:15,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:00:15,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198621992] [2021-10-24 11:00:15,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:00:15,373 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:00:15,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:00:15,377 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:00:15,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 11:00:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:00:16,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 11:00:16,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:00:16,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:00:16,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:00:16,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:00:16,415 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:00:16,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198621992] [2021-10-24 11:00:16,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198621992] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:00:16,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:00:16,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 11:00:16,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708283303] [2021-10-24 11:00:16,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 11:00:16,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:00:16,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 11:00:16,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:00:16,450 INFO L87 Difference]: Start difference. First operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:00:16,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:00:16,476 INFO L93 Difference]: Finished difference Result 79 states and 128 transitions. [2021-10-24 11:00:16,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 11:00:16,478 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-24 11:00:16,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:00:16,489 INFO L225 Difference]: With dead ends: 79 [2021-10-24 11:00:16,489 INFO L226 Difference]: Without dead ends: 37 [2021-10-24 11:00:16,493 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:00:16,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-24 11:00:16,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-24 11:00:16,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 36 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:00:16,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2021-10-24 11:00:16,536 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2021-10-24 11:00:16,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:00:16,536 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2021-10-24 11:00:16,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:00:16,537 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2021-10-24 11:00:16,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-24 11:00:16,538 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:00:16,539 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:00:16,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 11:00:16,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:00:16,765 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:00:16,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:00:16,766 INFO L82 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2021-10-24 11:00:16,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:00:16,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2108437450] [2021-10-24 11:00:16,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:00:16,768 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:00:16,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:00:16,770 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:00:16,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 11:00:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:00:17,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-24 11:00:17,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:00:18,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:00:18,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:00:19,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:00:19,279 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:00:19,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2108437450] [2021-10-24 11:00:19,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2108437450] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:00:19,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:00:19,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-24 11:00:19,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683981063] [2021-10-24 11:00:19,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 11:00:19,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:00:19,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 11:00:19,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-24 11:00:19,285 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:00:31,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:00:31,493 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2021-10-24 11:00:31,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 11:00:31,989 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-24 11:00:31,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:00:31,991 INFO L225 Difference]: With dead ends: 61 [2021-10-24 11:00:31,991 INFO L226 Difference]: Without dead ends: 31 [2021-10-24 11:00:31,992 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1351.9ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-24 11:00:31,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-24 11:00:31,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2021-10-24 11:00:31,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:00:31,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2021-10-24 11:00:31,999 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 12 [2021-10-24 11:00:32,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:00:32,001 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2021-10-24 11:00:32,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:00:32,001 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2021-10-24 11:00:32,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-24 11:00:32,002 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:00:32,002 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:00:32,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-24 11:00:32,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:00:32,203 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:00:32,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:00:32,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1714660040, now seen corresponding path program 1 times [2021-10-24 11:00:32,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:00:32,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560797893] [2021-10-24 11:00:32,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:00:32,205 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:00:32,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:00:32,206 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:00:32,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 11:00:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:00:32,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-24 11:00:32,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:00:36,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:00:36,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:00:54,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:00:54,152 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:00:54,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560797893] [2021-10-24 11:00:54,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560797893] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:00:54,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:00:54,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-24 11:00:54,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773039306] [2021-10-24 11:00:54,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-24 11:00:54,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:00:54,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-24 11:00:54,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-24 11:00:54,156 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:01:42,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:01:42,471 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2021-10-24 11:01:42,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 11:01:42,472 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-24 11:01:42,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:01:42,473 INFO L225 Difference]: With dead ends: 31 [2021-10-24 11:01:42,473 INFO L226 Difference]: Without dead ends: 27 [2021-10-24 11:01:42,474 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 14720.4ms TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-10-24 11:01:42,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-24 11:01:42,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-24 11:01:42,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:01:42,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-10-24 11:01:42,479 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 13 [2021-10-24 11:01:42,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:01:42,479 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-24 11:01:42,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:01:42,480 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-10-24 11:01:42,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-24 11:01:42,481 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:01:42,481 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:01:42,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 11:01:42,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:01:42,682 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:01:42,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:01:42,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1479203763, now seen corresponding path program 1 times [2021-10-24 11:01:42,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:01:42,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566701025] [2021-10-24 11:01:42,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:01:42,684 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:01:42,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:01:42,685 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:01:42,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 11:01:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:01:46,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 11:01:46,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:01:48,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:01:48,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:01:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:01:58,773 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:01:58,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566701025] [2021-10-24 11:01:58,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566701025] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:01:58,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:01:58,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-24 11:01:58,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490315963] [2021-10-24 11:01:58,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 11:01:58,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:01:58,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 11:01:58,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-24 11:01:58,778 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:01:59,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:01:59,150 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-10-24 11:01:59,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 11:01:59,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-24 11:01:59,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:01:59,153 INFO L225 Difference]: With dead ends: 27 [2021-10-24 11:01:59,153 INFO L226 Difference]: Without dead ends: 0 [2021-10-24 11:01:59,154 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3886.5ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-24 11:01:59,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-24 11:01:59,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-24 11:01:59,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:01:59,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-24 11:01:59,154 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-24 11:01:59,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:01:59,155 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-24 11:01:59,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:01:59,155 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-24 11:01:59,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-24 11:01:59,158 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:01:59,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 11:01:59,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:01:59,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-24 11:01:59,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:01:59,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:01:59,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:01:59,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:01:59,419 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:01:59,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:02:00,374 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 71) no Hoare annotation was computed. [2021-10-24 11:02:00,374 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 118 122) no Hoare annotation was computed. [2021-10-24 11:02:00,376 INFO L853 garLoopResultBuilder]: At program point L118-2(lines 118 122) the Hoare annotation is: false [2021-10-24 11:02:00,377 INFO L857 garLoopResultBuilder]: For program point L102(lines 102 130) no Hoare annotation was computed. [2021-10-24 11:02:00,377 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-24 11:02:00,377 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-24 11:02:00,378 INFO L860 garLoopResultBuilder]: At program point L152(lines 133 153) the Hoare annotation is: true [2021-10-24 11:02:00,378 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-10-24 11:02:00,379 INFO L857 garLoopResultBuilder]: For program point L70-2(line 70) no Hoare annotation was computed. [2021-10-24 11:02:00,380 INFO L857 garLoopResultBuilder]: For program point L62-1(lines 62 66) no Hoare annotation was computed. [2021-10-24 11:02:00,385 INFO L853 garLoopResultBuilder]: At program point L62-2(lines 62 66) the Hoare annotation is: false [2021-10-24 11:02:00,386 INFO L857 garLoopResultBuilder]: For program point L62-3(lines 60 71) no Hoare annotation was computed. [2021-10-24 11:02:00,386 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 88) no Hoare annotation was computed. [2021-10-24 11:02:00,386 INFO L857 garLoopResultBuilder]: For program point L79-2(lines 79 88) no Hoare annotation was computed. [2021-10-24 11:02:00,386 INFO L857 garLoopResultBuilder]: For program point L104-1(lines 104 108) no Hoare annotation was computed. [2021-10-24 11:02:00,386 INFO L853 garLoopResultBuilder]: At program point L104-2(lines 104 108) the Hoare annotation is: false [2021-10-24 11:02:00,387 INFO L853 garLoopResultBuilder]: At program point L129(lines 46 131) the Hoare annotation is: (and (= ~one_exp~0 ((_ to_fp 11 53) currentRoundingMode 1.0)) (exists ((ULTIMATE.start___ieee754_exp_~x (_ FloatingPoint 11 53))) (and (= (fp.add currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) ULTIMATE.start___ieee754_exp_~x) |ULTIMATE.start___ieee754_exp_#res|) (fp.eq ULTIMATE.start___ieee754_exp_~x (_ +zero 11 53)))) (= currentRoundingMode roundNearestTiesToEven) (fp.eq ULTIMATE.start___ieee754_exp_~x (_ +zero 11 53))) [2021-10-24 11:02:00,387 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 149) no Hoare annotation was computed. [2021-10-24 11:02:00,387 INFO L857 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-10-24 11:02:00,387 INFO L857 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2021-10-24 11:02:00,387 INFO L857 garLoopResultBuilder]: For program point L98(lines 98 101) no Hoare annotation was computed. [2021-10-24 11:02:00,387 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-24 11:02:00,387 INFO L857 garLoopResultBuilder]: For program point L123(lines 123 128) no Hoare annotation was computed. [2021-10-24 11:02:00,388 INFO L857 garLoopResultBuilder]: For program point L90(lines 90 93) no Hoare annotation was computed. [2021-10-24 11:02:00,388 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 116 130) no Hoare annotation was computed. [2021-10-24 11:02:00,388 INFO L857 garLoopResultBuilder]: For program point L123-2(lines 123 128) no Hoare annotation was computed. [2021-10-24 11:02:00,388 INFO L857 garLoopResultBuilder]: For program point L90-2(lines 78 93) no Hoare annotation was computed. [2021-10-24 11:02:00,388 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 147) no Hoare annotation was computed. [2021-10-24 11:02:00,388 INFO L857 garLoopResultBuilder]: For program point L74(lines 74 75) no Hoare annotation was computed. [2021-10-24 11:02:00,395 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-24 11:02:00,395 INFO L857 garLoopResultBuilder]: For program point L91(lines 91 92) no Hoare annotation was computed. [2021-10-24 11:02:00,395 INFO L857 garLoopResultBuilder]: For program point L141(lines 141 150) no Hoare annotation was computed. [2021-10-24 11:02:00,395 INFO L857 garLoopResultBuilder]: For program point L141-2(lines 141 150) no Hoare annotation was computed. [2021-10-24 11:02:00,395 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 76) no Hoare annotation was computed. [2021-10-24 11:02:00,396 INFO L857 garLoopResultBuilder]: For program point L59-2(lines 46 131) no Hoare annotation was computed. [2021-10-24 11:02:00,396 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2021-10-24 11:02:00,396 INFO L853 garLoopResultBuilder]: At program point L51-2(lines 51 55) the Hoare annotation is: (and (= ~one_exp~0 ((_ to_fp 11 53) currentRoundingMode 1.0)) (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_exp~0) (= currentRoundingMode roundNearestTiesToEven) (fp.eq ULTIMATE.start___ieee754_exp_~x (_ +zero 11 53))) [2021-10-24 11:02:00,397 INFO L857 garLoopResultBuilder]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2021-10-24 11:02:00,398 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2021-10-24 11:02:00,398 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 102 116) no Hoare annotation was computed. [2021-10-24 11:02:00,398 INFO L857 garLoopResultBuilder]: For program point L109-2(lines 109 114) no Hoare annotation was computed. [2021-10-24 11:02:00,402 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 11:02:00,411 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:02:00,431 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:02:00,433 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-24 11:02:00,435 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-24 11:02:00,435 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:02:00,436 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-24 11:02:00,436 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-24 11:02:00,436 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:02:00,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:02:00 BoogieIcfgContainer [2021-10-24 11:02:00,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 11:02:00,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 11:02:00,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 11:02:00,442 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 11:02:00,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:00:15" (3/4) ... [2021-10-24 11:02:00,447 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-24 11:02:00,463 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-24 11:02:00,464 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-24 11:02:00,464 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 11:02:00,465 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 11:02:00,500 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) && (\exists ULTIMATE.start___ieee754_exp_~x : C_DOUBLE :: ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x) == \result && ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x, ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE()) [2021-10-24 11:02:00,562 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 11:02:00,562 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 11:02:00,564 INFO L168 Benchmark]: Toolchain (without parser) took 121319.37 ms. Allocated memory is still 75.5 MB. Free memory was 58.4 MB in the beginning and 49.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. [2021-10-24 11:02:00,564 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 75.5 MB. Free memory is still 55.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:02:00,565 INFO L168 Benchmark]: CACSL2BoogieTranslator took 455.28 ms. Allocated memory is still 75.5 MB. Free memory was 58.2 MB in the beginning and 56.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 11:02:00,565 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.38 ms. Allocated memory is still 75.5 MB. Free memory was 55.9 MB in the beginning and 54.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:02:00,566 INFO L168 Benchmark]: Boogie Preprocessor took 59.14 ms. Allocated memory is still 75.5 MB. Free memory was 53.8 MB in the beginning and 51.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:02:00,566 INFO L168 Benchmark]: RCFGBuilder took 15291.53 ms. Allocated memory is still 75.5 MB. Free memory was 51.8 MB in the beginning and 55.3 MB in the end (delta: -3.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2021-10-24 11:02:00,567 INFO L168 Benchmark]: TraceAbstraction took 105291.82 ms. Allocated memory is still 75.5 MB. Free memory was 55.0 MB in the beginning and 29.5 MB in the end (delta: 25.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. [2021-10-24 11:02:00,567 INFO L168 Benchmark]: Witness Printer took 121.06 ms. Allocated memory is still 75.5 MB. Free memory was 29.5 MB in the beginning and 49.2 MB in the end (delta: -19.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:02:00,570 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 75.5 MB. Free memory is still 55.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 455.28 ms. Allocated memory is still 75.5 MB. Free memory was 58.2 MB in the beginning and 56.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.38 ms. Allocated memory is still 75.5 MB. Free memory was 55.9 MB in the beginning and 54.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.14 ms. Allocated memory is still 75.5 MB. Free memory was 53.8 MB in the beginning and 51.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 15291.53 ms. Allocated memory is still 75.5 MB. Free memory was 51.8 MB in the beginning and 55.3 MB in the end (delta: -3.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 105291.82 ms. Allocated memory is still 75.5 MB. Free memory was 55.0 MB in the beginning and 29.5 MB in the end (delta: 25.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. * Witness Printer took 121.06 ms. Allocated memory is still 75.5 MB. Free memory was 29.5 MB in the beginning and 49.2 MB in the end (delta: -19.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 147]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 105146.8ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 38.2ms, AutomataDifference: 61470.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1008.6ms, InitialAbstractionConstructionTime: 22.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 106 SDtfs, 73 SDslu, 148 SDs, 0 SdLazy, 42 SolverSat, 5 SolverUnsat, 21 SolverUnknown, 0 SolverNotchecked, 55555.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 19959.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 36.1ms AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 46 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 52.3ms HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 949.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 106.0ms SsaConstructionTime, 4918.3ms SatisfiabilityAnalysisTime, 36309.7ms InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 94 ConstructedInterpolants, 10 QuantifiedInterpolants, 578 SizeOfPredicates, 21 NumberOfNonLiveVariables, 341 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 51]: Loop Invariant [2021-10-24 11:02:00,579 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:02:00,580 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_exp) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 46]: Loop Invariant [2021-10-24 11:02:00,581 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-24 11:02:00,581 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-24 11:02:00,581 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:02:00,582 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-24 11:02:00,582 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-24 11:02:00,582 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) && (\exists ULTIMATE.start___ieee754_exp_~x : C_DOUBLE :: ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x) == \result && ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x, ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-24 11:02:00,804 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-24 11:02:00,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da67dd4d-1192-4016-ad4a-c068d39aee3a/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...