./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1072c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1072c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS --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 7dedcc4e0d73f8d6f04d58880e42c68da67c7fd6d90a8920279134db43221c4a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:58:35,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:58:35,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:58:35,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:58:35,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:58:35,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:58:35,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:58:35,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:58:35,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:58:35,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:58:35,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:58:35,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:58:35,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:58:35,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:58:35,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:58:35,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:58:35,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:58:35,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:58:35,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:58:35,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:58:35,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:58:35,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:58:35,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:58:35,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:58:35,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:58:36,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:58:36,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:58:36,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:58:36,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:58:36,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:58:36,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:58:36,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:58:36,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:58:36,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:58:36,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:58:36,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:58:36,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:58:36,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:58:36,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:58:36,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:58:36,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:58:36,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:58:36,064 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:58:36,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:58:36,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:58:36,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:58:36,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:58:36,066 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:58:36,067 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:58:36,067 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:58:36,068 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:58:36,068 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:58:36,068 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:58:36,069 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:58:36,069 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:58:36,069 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:58:36,070 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:58:36,070 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:58:36,070 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:58:36,071 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:58:36,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:58:36,072 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:58:36,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:58:36,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:58:36,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:58:36,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:58:36,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:58:36,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:58:36,074 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:58:36,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:58:36,075 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:58:36,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:58:36,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:58:36,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:58:36,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:58:36,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:58:36,077 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:58:36,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:58:36,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:58:36,078 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:58:36,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:58:36,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:58:36,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:58:36,079 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dedcc4e0d73f8d6f04d58880e42c68da67c7fd6d90a8920279134db43221c4a [2022-11-19 07:58:36,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:58:36,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:58:36,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:58:36,400 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:58:36,401 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:58:36,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/float-newlib/double_req_bl_1072c.c [2022-11-19 07:58:36,515 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/data/ba45d152b/79a6802734ee42bcb55ed07194216085/FLAG1a641dda2 [2022-11-19 07:58:37,065 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:58:37,066 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/sv-benchmarks/c/float-newlib/double_req_bl_1072c.c [2022-11-19 07:58:37,078 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/data/ba45d152b/79a6802734ee42bcb55ed07194216085/FLAG1a641dda2 [2022-11-19 07:58:37,417 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/data/ba45d152b/79a6802734ee42bcb55ed07194216085 [2022-11-19 07:58:37,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:58:37,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:58:37,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:58:37,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:58:37,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:58:37,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:37" (1/1) ... [2022-11-19 07:58:37,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@271fb477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:37, skipping insertion in model container [2022-11-19 07:58:37,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:37" (1/1) ... [2022-11-19 07:58:37,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:58:37,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:58:37,775 WARN L234 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_911fc26e-5621-443b-8382-041c78e50a3f/sv-benchmarks/c/float-newlib/double_req_bl_1072c.c[2112,2125] [2022-11-19 07:58:37,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:58:37,790 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:58:37,821 WARN L234 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_911fc26e-5621-443b-8382-041c78e50a3f/sv-benchmarks/c/float-newlib/double_req_bl_1072c.c[2112,2125] [2022-11-19 07:58:37,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:58:37,838 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:58:37,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:37 WrapperNode [2022-11-19 07:58:37,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:58:37,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:58:37,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:58:37,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:58:37,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:37" (1/1) ... [2022-11-19 07:58:37,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:37" (1/1) ... [2022-11-19 07:58:37,921 INFO L138 Inliner]: procedures = 17, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 116 [2022-11-19 07:58:37,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:58:37,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:58:37,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:58:37,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:58:37,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:37" (1/1) ... [2022-11-19 07:58:37,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:37" (1/1) ... [2022-11-19 07:58:37,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:37" (1/1) ... [2022-11-19 07:58:37,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:37" (1/1) ... [2022-11-19 07:58:37,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:37" (1/1) ... [2022-11-19 07:58:37,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:37" (1/1) ... [2022-11-19 07:58:37,989 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:37" (1/1) ... [2022-11-19 07:58:37,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:37" (1/1) ... [2022-11-19 07:58:37,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:58:37,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:58:37,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:58:37,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:58:38,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:37" (1/1) ... [2022-11-19 07:58:38,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:58:38,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:58:38,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:58:38,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:58:38,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:58:38,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:58:38,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:58:38,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-19 07:58:38,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:58:38,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-19 07:58:38,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:58:38,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:58:38,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:58:38,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:58:38,251 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:58:38,253 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:58:38,492 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:58:38,577 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:58:38,577 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-19 07:58:38,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:38 BoogieIcfgContainer [2022-11-19 07:58:38,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:58:38,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:58:38,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:58:38,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:58:38,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:37" (1/3) ... [2022-11-19 07:58:38,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c370b37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:38, skipping insertion in model container [2022-11-19 07:58:38,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:37" (2/3) ... [2022-11-19 07:58:38,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c370b37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:38, skipping insertion in model container [2022-11-19 07:58:38,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:38" (3/3) ... [2022-11-19 07:58:38,601 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072c.c [2022-11-19 07:58:38,649 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:58:38,649 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:58:38,734 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:58:38,744 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4dcab75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:58:38,745 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:58:38,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 24 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) [2022-11-19 07:58:38,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 07:58:38,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:38,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:58:38,760 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:38,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:38,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1957332529, now seen corresponding path program 1 times [2022-11-19 07:58:38,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:58:38,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248963729] [2022-11-19 07:58:38,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:38,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:58:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:39,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:58:39,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:58:39,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248963729] [2022-11-19 07:58:39,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248963729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:58:39,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:58:39,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:58:39,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985574621] [2022-11-19 07:58:39,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:58:39,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:58:39,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:58:39,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:58:39,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:58:39,074 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 24 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) 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) [2022-11-19 07:58:39,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:39,110 INFO L93 Difference]: Finished difference Result 49 states and 79 transitions. [2022-11-19 07:58:39,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:58:39,114 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 [2022-11-19 07:58:39,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:39,125 INFO L225 Difference]: With dead ends: 49 [2022-11-19 07:58:39,125 INFO L226 Difference]: Without dead ends: 23 [2022-11-19 07:58:39,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:58:39,134 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:39,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:58:39,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-19 07:58:39,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-19 07:58:39,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:58:39,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-11-19 07:58:39,177 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 10 [2022-11-19 07:58:39,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:39,178 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-11-19 07:58:39,179 INFO L496 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) [2022-11-19 07:58:39,179 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-11-19 07:58:39,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:58:39,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:39,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:58:39,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:58:39,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:39,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:39,182 INFO L85 PathProgramCache]: Analyzing trace with hash -336391374, now seen corresponding path program 1 times [2022-11-19 07:58:39,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:58:39,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2156420] [2022-11-19 07:58:39,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:39,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:58:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:58:39,238 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:58:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:58:39,297 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:58:39,297 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:58:39,299 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:58:39,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:58:39,307 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-19 07:58:39,311 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:58:39,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:58:39 BoogieIcfgContainer [2022-11-19 07:58:39,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:58:39,343 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:58:39,343 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:58:39,344 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:58:39,344 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:38" (3/4) ... [2022-11-19 07:58:39,348 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:58:39,348 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:58:39,350 INFO L158 Benchmark]: Toolchain (without parser) took 1915.13ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 63.5MB in the beginning and 85.4MB in the end (delta: -21.9MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2022-11-19 07:58:39,350 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 96.5MB. Free memory was 51.9MB in the beginning and 51.8MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:58:39,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.40ms. Allocated memory is still 96.5MB. Free memory was 63.3MB in the beginning and 71.6MB in the end (delta: -8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:58:39,352 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.50ms. Allocated memory is still 96.5MB. Free memory was 71.6MB in the beginning and 69.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:58:39,352 INFO L158 Benchmark]: Boogie Preprocessor took 69.29ms. Allocated memory is still 96.5MB. Free memory was 69.5MB in the beginning and 67.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:58:39,353 INFO L158 Benchmark]: RCFGBuilder took 583.16ms. Allocated memory is still 96.5MB. Free memory was 67.9MB in the beginning and 51.2MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-19 07:58:39,354 INFO L158 Benchmark]: TraceAbstraction took 759.45ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 50.6MB in the beginning and 86.2MB in the end (delta: -35.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:58:39,355 INFO L158 Benchmark]: Witness Printer took 5.43ms. Allocated memory is still 130.0MB. Free memory was 86.2MB in the beginning and 85.4MB in the end (delta: 809.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:58:39,358 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 96.5MB. Free memory was 51.9MB in the beginning and 51.8MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.40ms. Allocated memory is still 96.5MB. Free memory was 63.3MB in the beginning and 71.6MB in the end (delta: -8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.50ms. Allocated memory is still 96.5MB. Free memory was 71.6MB in the beginning and 69.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.29ms. Allocated memory is still 96.5MB. Free memory was 69.5MB in the beginning and 67.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 583.16ms. Allocated memory is still 96.5MB. Free memory was 67.9MB in the beginning and 51.2MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 759.45ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 50.6MB in the beginning and 86.2MB in the end (delta: -35.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.43ms. Allocated memory is still 130.0MB. Free memory was 86.2MB in the beginning and 85.4MB in the end (delta: 809.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 88]: 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 83, overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51, overapproximation of someBinaryDOUBLEComparisonOperation at line 87. Possible FailurePath: [L83] double x = -0.0; [L84] CALL, EXPR trunc_double(x) [L20] int signbit; [L21] int msw; [L22] unsigned int lsw; [L23] int exponent_less_1023; VAL [\old(x)=4294967304, x=4294967304] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (msw) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (lsw) = ew_u.parts.lsw [L30] signbit = msw & 0x80000000 [L31] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=4294967304, exponent_less_1023=1024, lsw=4294967295, msw=-2, signbit=2147483647, x=4294967304] [L32] COND FALSE !(exponent_less_1023 < 20) VAL [\old(x)=4294967304, exponent_less_1023=1024, lsw=4294967295, msw=-2, signbit=2147483647, x=4294967304] [L49] COND TRUE exponent_less_1023 > 51 VAL [\old(x)=4294967304, exponent_less_1023=1024, lsw=4294967295, msw=-2, signbit=2147483647, x=4294967304] [L50] COND TRUE exponent_less_1023 == 1024 [L51] return x + x; VAL [\old(x)=4294967304, exponent_less_1023=1024, lsw=4294967295, msw=-2, signbit=2147483647, x=4294967304] [L84] RET, EXPR trunc_double(x) [L84] double res = trunc_double(x); [L87] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [res=4294967303, res == -0.0 && __signbit_double(res) == 1=0, x=4294967304] [L87] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L88] reach_error() VAL [res=4294967303, x=4294967304] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s 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 [2022-11-19 07:58:39,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1072c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS --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 7dedcc4e0d73f8d6f04d58880e42c68da67c7fd6d90a8920279134db43221c4a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:58:42,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:58:42,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:58:42,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:58:42,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:58:42,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:58:42,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:58:42,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:58:42,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:58:42,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:58:42,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:58:42,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:58:42,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:58:42,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:58:42,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:58:42,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:58:42,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:58:42,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:58:42,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:58:42,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:58:42,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:58:42,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:58:42,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:58:42,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:58:42,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:58:42,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:58:42,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:58:42,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:58:42,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:58:42,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:58:42,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:58:42,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:58:42,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:58:42,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:58:42,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:58:42,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:58:42,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:58:42,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:58:42,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:58:42,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:58:42,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:58:42,135 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-19 07:58:42,182 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:58:42,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:58:42,184 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:58:42,185 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:58:42,186 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:58:42,186 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:58:42,187 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:58:42,187 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:58:42,187 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:58:42,188 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:58:42,189 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:58:42,190 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:58:42,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:58:42,192 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:58:42,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:58:42,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:58:42,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:58:42,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:58:42,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:58:42,194 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:58:42,195 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:58:42,195 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:58:42,195 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:58:42,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:58:42,196 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:58:42,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:58:42,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:58:42,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:58:42,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:58:42,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:58:42,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:58:42,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:58:42,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:58:42,200 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:58:42,200 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:58:42,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:58:42,201 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:58:42,202 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:58:42,202 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_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dedcc4e0d73f8d6f04d58880e42c68da67c7fd6d90a8920279134db43221c4a [2022-11-19 07:58:42,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:58:42,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:58:42,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:58:42,698 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:58:42,699 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:58:42,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/float-newlib/double_req_bl_1072c.c [2022-11-19 07:58:42,796 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/data/a62155712/cb0c1d19050f4ba98e394afa5d2151ad/FLAG649052d1c [2022-11-19 07:58:43,386 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:58:43,386 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/sv-benchmarks/c/float-newlib/double_req_bl_1072c.c [2022-11-19 07:58:43,397 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/data/a62155712/cb0c1d19050f4ba98e394afa5d2151ad/FLAG649052d1c [2022-11-19 07:58:43,749 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/data/a62155712/cb0c1d19050f4ba98e394afa5d2151ad [2022-11-19 07:58:43,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:58:43,756 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:58:43,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:58:43,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:58:43,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:58:43,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:43" (1/1) ... [2022-11-19 07:58:43,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31149718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:43, skipping insertion in model container [2022-11-19 07:58:43,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:43" (1/1) ... [2022-11-19 07:58:43,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:58:43,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:58:44,011 WARN L234 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_911fc26e-5621-443b-8382-041c78e50a3f/sv-benchmarks/c/float-newlib/double_req_bl_1072c.c[2112,2125] [2022-11-19 07:58:44,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:58:44,031 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:58:44,108 WARN L234 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_911fc26e-5621-443b-8382-041c78e50a3f/sv-benchmarks/c/float-newlib/double_req_bl_1072c.c[2112,2125] [2022-11-19 07:58:44,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:58:44,138 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:58:44,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:44 WrapperNode [2022-11-19 07:58:44,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:58:44,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:58:44,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:58:44,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:58:44,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:44" (1/1) ... [2022-11-19 07:58:44,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:44" (1/1) ... [2022-11-19 07:58:44,188 INFO L138 Inliner]: procedures = 20, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 109 [2022-11-19 07:58:44,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:58:44,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:58:44,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:58:44,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:58:44,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:44" (1/1) ... [2022-11-19 07:58:44,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:44" (1/1) ... [2022-11-19 07:58:44,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:44" (1/1) ... [2022-11-19 07:58:44,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:44" (1/1) ... [2022-11-19 07:58:44,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:44" (1/1) ... [2022-11-19 07:58:44,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:44" (1/1) ... [2022-11-19 07:58:44,222 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:44" (1/1) ... [2022-11-19 07:58:44,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:44" (1/1) ... [2022-11-19 07:58:44,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:58:44,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:58:44,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:58:44,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:58:44,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:44" (1/1) ... [2022-11-19 07:58:44,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:58:44,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:58:44,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:58:44,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:58:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:58:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-19 07:58:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-19 07:58:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 07:58:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:58:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-19 07:58:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:58:44,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:58:44,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 07:58:44,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:58:44,415 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:58:44,418 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:58:44,851 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:58:44,858 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:58:44,858 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-19 07:58:44,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:44 BoogieIcfgContainer [2022-11-19 07:58:44,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:58:44,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:58:44,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:58:44,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:58:44,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:43" (1/3) ... [2022-11-19 07:58:44,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6e4ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:44, skipping insertion in model container [2022-11-19 07:58:44,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:44" (2/3) ... [2022-11-19 07:58:44,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6e4ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:44, skipping insertion in model container [2022-11-19 07:58:44,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:44" (3/3) ... [2022-11-19 07:58:44,883 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072c.c [2022-11-19 07:58:44,922 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:58:44,936 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:58:45,023 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:58:45,039 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6dc5c9ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:58:45,040 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:58:45,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 27 states have internal predecessors, (43), 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) [2022-11-19 07:58:45,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:58:45,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:45,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:58:45,056 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:45,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:45,062 INFO L85 PathProgramCache]: Analyzing trace with hash 166150340, now seen corresponding path program 1 times [2022-11-19 07:58:45,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:58:45,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198287914] [2022-11-19 07:58:45,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:45,076 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:45,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:58:45,077 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:58:45,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 07:58:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:45,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 07:58:45,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:45,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:58:45,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:58:45,268 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:58:45,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198287914] [2022-11-19 07:58:45,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198287914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:58:45,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:58:45,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:58:45,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835351620] [2022-11-19 07:58:45,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:58:45,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:58:45,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:58:45,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:58:45,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:58:45,319 INFO L87 Difference]: Start difference. First operand has 28 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 27 states have internal predecessors, (43), 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) [2022-11-19 07:58:45,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:45,341 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2022-11-19 07:58:45,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:58:45,344 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 [2022-11-19 07:58:45,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:45,356 INFO L225 Difference]: With dead ends: 54 [2022-11-19 07:58:45,357 INFO L226 Difference]: Without dead ends: 25 [2022-11-19 07:58:45,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:58:45,364 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:45,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:58:45,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-19 07:58:45,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-19 07:58:45,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 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) [2022-11-19 07:58:45,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2022-11-19 07:58:45,426 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 11 [2022-11-19 07:58:45,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:45,426 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2022-11-19 07:58:45,427 INFO L496 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) [2022-11-19 07:58:45,427 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2022-11-19 07:58:45,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 07:58:45,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:45,428 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:58:45,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:45,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:45,645 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:45,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:45,646 INFO L85 PathProgramCache]: Analyzing trace with hash 786071265, now seen corresponding path program 1 times [2022-11-19 07:58:45,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:58:45,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780111153] [2022-11-19 07:58:45,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:45,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:45,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:58:45,649 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:58:45,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 07:58:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:58:45,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 07:58:45,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:58:46,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:58:46,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:58:46,073 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:58:46,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780111153] [2022-11-19 07:58:46,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780111153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:58:46,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:58:46,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:58:46,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969992256] [2022-11-19 07:58:46,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:58:46,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:58:46,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:58:46,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:58:46,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:58:46,083 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-19 07:58:46,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:58:46,167 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2022-11-19 07:58:46,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:58:46,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 [2022-11-19 07:58:46,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:58:46,170 INFO L225 Difference]: With dead ends: 35 [2022-11-19 07:58:46,170 INFO L226 Difference]: Without dead ends: 21 [2022-11-19 07:58:46,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:58:46,172 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:58:46,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 64 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 9 Unchecked, 0.0s Time] [2022-11-19 07:58:46,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-19 07:58:46,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-19 07:58:46,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 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) [2022-11-19 07:58:46,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-11-19 07:58:46,178 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2022-11-19 07:58:46,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:58:46,179 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-11-19 07:58:46,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-19 07:58:46,179 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-11-19 07:58:46,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 07:58:46,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:58:46,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:58:46,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:46,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:46,381 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:58:46,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:58:46,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2089944352, now seen corresponding path program 1 times [2022-11-19 07:58:46,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:58:46,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204108025] [2022-11-19 07:58:46,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:58:46,383 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:46,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:58:46,385 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:58:46,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-19 07:58:46,537 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Exception during sending of exit command (exit): Broken pipe [2022-11-19 07:58:46,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 139 [2022-11-19 07:58:46,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:58:46,740 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-19 07:58:46,745 INFO L158 Benchmark]: Toolchain (without parser) took 2987.94ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 37.1MB in the beginning and 53.1MB in the end (delta: -15.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-19 07:58:46,745 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 58.7MB. Free memory is still 40.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:58:46,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.59ms. Allocated memory is still 58.7MB. Free memory was 37.0MB in the beginning and 41.6MB in the end (delta: -4.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-19 07:58:46,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.23ms. Allocated memory is still 58.7MB. Free memory was 41.5MB in the beginning and 39.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:58:46,754 INFO L158 Benchmark]: Boogie Preprocessor took 37.97ms. Allocated memory is still 58.7MB. Free memory was 39.7MB in the beginning and 38.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:58:46,757 INFO L158 Benchmark]: RCFGBuilder took 632.52ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 38.0MB in the beginning and 51.1MB in the end (delta: -13.2MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2022-11-19 07:58:46,758 INFO L158 Benchmark]: TraceAbstraction took 1880.31ms. Allocated memory is still 71.3MB. Free memory was 50.3MB in the beginning and 53.1MB in the end (delta: -2.8MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2022-11-19 07:58:46,767 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 58.7MB. Free memory is still 40.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.59ms. Allocated memory is still 58.7MB. Free memory was 37.0MB in the beginning and 41.6MB in the end (delta: -4.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.23ms. Allocated memory is still 58.7MB. Free memory was 41.5MB in the beginning and 39.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.97ms. Allocated memory is still 58.7MB. Free memory was 39.7MB in the beginning and 38.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 632.52ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 38.0MB in the beginning and 51.1MB in the end (delta: -13.2MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1880.31ms. Allocated memory is still 71.3MB. Free memory was 50.3MB in the beginning and 53.1MB in the end (delta: -2.8MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-19 07:58:46,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_911fc26e-5621-443b-8382-041c78e50a3f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output.