./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_4+newton_1_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/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_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_1_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/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_04e59c0f-0243-415b-908a-4aed3e38ffc1/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 5bba7076723828a76d549dab99f9f19216b374670dd0bb1f48d42a5f4a5ac3a7 --- 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 08:04:35,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:04:35,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:04:35,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:04:35,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:04:35,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:04:35,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:04:35,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:04:35,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:04:35,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:04:35,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:04:35,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:04:35,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:04:35,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:04:35,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:04:35,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:04:35,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:04:35,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:04:35,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:04:35,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:04:35,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:04:35,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:04:35,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:04:35,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:04:35,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:04:35,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:04:35,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:04:35,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:04:35,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:04:35,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:04:35,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:04:35,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:04:35,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:04:35,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:04:35,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:04:35,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:04:35,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:04:35,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:04:35,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:04:35,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:04:35,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:04:35,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:04:35,877 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:04:35,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:04:35,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:04:35,878 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:04:35,879 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:04:35,879 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:04:35,879 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:04:35,880 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:04:35,880 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:04:35,880 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:04:35,881 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:04:35,881 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:04:35,882 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:04:35,882 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:04:35,882 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:04:35,882 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:04:35,883 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:04:35,883 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:04:35,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:04:35,884 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:04:35,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:04:35,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:04:35,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:04:35,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:04:35,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:04:35,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:04:35,887 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:04:35,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:04:35,887 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:04:35,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:04:35,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:04:35,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:04:35,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:04:35,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:04:35,889 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:04:35,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:04:35,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:04:35,890 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:04:35,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:04:35,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:04:35,890 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:04:35,891 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_04e59c0f-0243-415b-908a-4aed3e38ffc1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bba7076723828a76d549dab99f9f19216b374670dd0bb1f48d42a5f4a5ac3a7 [2022-11-19 08:04:36,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:04:36,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:04:36,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:04:36,194 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:04:36,194 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:04:36,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/combinations/gcd_4+newton_1_7.i [2022-11-19 08:04:36,266 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/data/8e7d99bb9/5e64b11e85fb422ebf92b115a504911b/FLAGfcbf3efb0 [2022-11-19 08:04:36,793 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:04:36,793 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i [2022-11-19 08:04:36,800 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/data/8e7d99bb9/5e64b11e85fb422ebf92b115a504911b/FLAGfcbf3efb0 [2022-11-19 08:04:37,159 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/data/8e7d99bb9/5e64b11e85fb422ebf92b115a504911b [2022-11-19 08:04:37,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:04:37,163 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:04:37,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:04:37,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:04:37,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:04:37,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:37" (1/1) ... [2022-11-19 08:04:37,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15f766f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:37, skipping insertion in model container [2022-11-19 08:04:37,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:37" (1/1) ... [2022-11-19 08:04:37,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:04:37,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:04:37,398 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_04e59c0f-0243-415b-908a-4aed3e38ffc1/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i[1224,1237] [2022-11-19 08:04:37,420 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_04e59c0f-0243-415b-908a-4aed3e38ffc1/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i[2806,2819] [2022-11-19 08:04:37,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:04:37,431 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:04:37,446 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_04e59c0f-0243-415b-908a-4aed3e38ffc1/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i[1224,1237] [2022-11-19 08:04:37,465 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_04e59c0f-0243-415b-908a-4aed3e38ffc1/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i[2806,2819] [2022-11-19 08:04:37,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:04:37,489 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:04:37,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:37 WrapperNode [2022-11-19 08:04:37,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:04:37,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:04:37,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:04:37,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:04:37,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:37" (1/1) ... [2022-11-19 08:04:37,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:37" (1/1) ... [2022-11-19 08:04:37,554 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 81 [2022-11-19 08:04:37,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:04:37,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:04:37,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:04:37,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:04:37,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:37" (1/1) ... [2022-11-19 08:04:37,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:37" (1/1) ... [2022-11-19 08:04:37,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:37" (1/1) ... [2022-11-19 08:04:37,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:37" (1/1) ... [2022-11-19 08:04:37,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:37" (1/1) ... [2022-11-19 08:04:37,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:37" (1/1) ... [2022-11-19 08:04:37,601 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:37" (1/1) ... [2022-11-19 08:04:37,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:37" (1/1) ... [2022-11-19 08:04:37,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:04:37,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:04:37,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:04:37,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:04:37,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:37" (1/1) ... [2022-11-19 08:04:37,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:04:37,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:04:37,644 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:04:37,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:04:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:04:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:04:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:04:37,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:04:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 08:04:37,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 08:04:37,771 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:04:37,774 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:04:38,010 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:04:38,082 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:04:38,082 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:04:38,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:38 BoogieIcfgContainer [2022-11-19 08:04:38,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:04:38,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:04:38,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:04:38,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:04:38,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:04:37" (1/3) ... [2022-11-19 08:04:38,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1446bbb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:38, skipping insertion in model container [2022-11-19 08:04:38,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:37" (2/3) ... [2022-11-19 08:04:38,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1446bbb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:38, skipping insertion in model container [2022-11-19 08:04:38,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:38" (3/3) ... [2022-11-19 08:04:38,109 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_7.i [2022-11-19 08:04:38,129 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:04:38,129 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 08:04:38,199 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:04:38,209 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;@59d084e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:04:38,209 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 08:04:38,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:04:38,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 08:04:38,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:04:38,224 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 08:04:38,226 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:04:38,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:04:38,235 INFO L85 PathProgramCache]: Analyzing trace with hash 3948908, now seen corresponding path program 1 times [2022-11-19 08:04:38,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:04:38,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098492006] [2022-11-19 08:04:38,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:04:38,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:04:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:04:38,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:04:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:04:38,405 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 08:04:38,408 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:04:38,409 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-19 08:04:38,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-19 08:04:38,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:04:38,416 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 08:04:38,421 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:04:38,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:04:38 BoogieIcfgContainer [2022-11-19 08:04:38,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:04:38,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:04:38,448 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:04:38,448 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:04:38,449 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:38" (3/4) ... [2022-11-19 08:04:38,453 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 08:04:38,453 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:04:38,454 INFO L158 Benchmark]: Toolchain (without parser) took 1290.82ms. Allocated memory is still 109.1MB. Free memory was 78.3MB in the beginning and 51.8MB in the end (delta: 26.5MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2022-11-19 08:04:38,455 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory was 64.2MB in the beginning and 64.1MB in the end (delta: 49.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:04:38,456 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.06ms. Allocated memory is still 109.1MB. Free memory was 78.2MB in the beginning and 85.0MB in the end (delta: -6.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 08:04:38,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.31ms. Allocated memory is still 109.1MB. Free memory was 85.0MB in the beginning and 83.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:04:38,463 INFO L158 Benchmark]: Boogie Preprocessor took 52.63ms. Allocated memory is still 109.1MB. Free memory was 83.3MB in the beginning and 81.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:04:38,464 INFO L158 Benchmark]: RCFGBuilder took 476.01ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 66.5MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-19 08:04:38,465 INFO L158 Benchmark]: TraceAbstraction took 358.76ms. Allocated memory is still 109.1MB. Free memory was 65.8MB in the beginning and 52.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:04:38,465 INFO L158 Benchmark]: Witness Printer took 5.30ms. Allocated memory is still 109.1MB. Free memory was 51.8MB in the beginning and 51.8MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:04:38,473 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory was 64.2MB in the beginning and 64.1MB in the end (delta: 49.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.06ms. Allocated memory is still 109.1MB. Free memory was 78.2MB in the beginning and 85.0MB in the end (delta: -6.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.31ms. Allocated memory is still 109.1MB. Free memory was 85.0MB in the beginning and 83.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.63ms. Allocated memory is still 109.1MB. Free memory was 83.3MB in the beginning and 81.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 476.01ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 66.5MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 358.76ms. Allocated memory is still 109.1MB. Free memory was 65.8MB in the beginning and 52.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 5.30ms. Allocated memory is still 109.1MB. Free memory was 51.8MB in the beginning and 51.8MB in the end (delta: 2.7kB). There was no memory consumed. 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: 109]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryArithmeticFLOAToperation at line 87. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L82] COND FALSE !(!cond) [L98] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L100] CALL, EXPR f(IN) [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L100] RET, EXPR f(IN) [L100] CALL, EXPR fp(IN) [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L100] RET, EXPR fp(IN) [L100] float x = IN - f(IN)/fp(IN); [L108] COND TRUE !(x < 0.1) VAL [IN=109] [L109] reach_error() VAL [IN=109] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 08:04:38,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/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_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_1_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/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_04e59c0f-0243-415b-908a-4aed3e38ffc1/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 5bba7076723828a76d549dab99f9f19216b374670dd0bb1f48d42a5f4a5ac3a7 --- 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 08:04:40,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:04:40,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:04:40,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:04:40,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:04:40,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:04:40,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:04:40,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:04:40,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:04:40,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:04:40,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:04:40,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:04:40,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:04:40,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:04:40,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:04:40,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:04:40,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:04:40,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:04:40,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:04:40,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:04:40,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:04:40,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:04:40,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:04:40,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:04:40,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:04:40,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:04:40,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:04:40,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:04:40,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:04:40,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:04:40,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:04:40,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:04:40,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:04:40,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:04:40,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:04:40,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:04:40,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:04:40,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:04:40,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:04:40,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:04:40,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:04:41,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-19 08:04:41,064 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:04:41,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:04:41,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:04:41,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:04:41,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:04:41,067 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:04:41,067 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:04:41,067 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:04:41,067 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:04:41,068 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:04:41,069 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:04:41,069 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:04:41,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:04:41,071 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:04:41,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:04:41,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:04:41,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:04:41,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:04:41,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:04:41,072 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:04:41,072 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 08:04:41,073 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 08:04:41,073 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:04:41,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:04:41,073 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:04:41,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:04:41,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:04:41,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 08:04:41,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:04:41,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:04:41,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:04:41,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:04:41,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:04:41,076 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 08:04:41,076 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 08:04:41,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:04:41,077 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:04:41,077 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 08:04:41,078 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bba7076723828a76d549dab99f9f19216b374670dd0bb1f48d42a5f4a5ac3a7 [2022-11-19 08:04:41,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:04:41,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:04:41,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:04:41,483 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:04:41,484 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:04:41,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/combinations/gcd_4+newton_1_7.i [2022-11-19 08:04:41,554 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/data/57e0a9fe0/32c4009e0d4e42eb8be704a4c5022218/FLAG8e3140c93 [2022-11-19 08:04:42,088 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:04:42,089 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i [2022-11-19 08:04:42,099 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/data/57e0a9fe0/32c4009e0d4e42eb8be704a4c5022218/FLAG8e3140c93 [2022-11-19 08:04:42,434 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/data/57e0a9fe0/32c4009e0d4e42eb8be704a4c5022218 [2022-11-19 08:04:42,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:04:42,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:04:42,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:04:42,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:04:42,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:04:42,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:42" (1/1) ... [2022-11-19 08:04:42,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@232e227b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:42, skipping insertion in model container [2022-11-19 08:04:42,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:42" (1/1) ... [2022-11-19 08:04:42,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:04:42,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:04:42,662 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_04e59c0f-0243-415b-908a-4aed3e38ffc1/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i[1224,1237] [2022-11-19 08:04:42,712 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_04e59c0f-0243-415b-908a-4aed3e38ffc1/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i[2806,2819] [2022-11-19 08:04:42,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:04:42,759 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:04:42,791 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_04e59c0f-0243-415b-908a-4aed3e38ffc1/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i[1224,1237] [2022-11-19 08:04:42,805 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_04e59c0f-0243-415b-908a-4aed3e38ffc1/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i[2806,2819] [2022-11-19 08:04:42,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:04:42,836 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:04:42,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:42 WrapperNode [2022-11-19 08:04:42,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:04:42,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:04:42,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:04:42,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:04:42,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:42" (1/1) ... [2022-11-19 08:04:42,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:42" (1/1) ... [2022-11-19 08:04:42,901 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 78 [2022-11-19 08:04:42,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:04:42,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:04:42,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:04:42,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:04:42,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:42" (1/1) ... [2022-11-19 08:04:42,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:42" (1/1) ... [2022-11-19 08:04:42,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:42" (1/1) ... [2022-11-19 08:04:42,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:42" (1/1) ... [2022-11-19 08:04:42,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:42" (1/1) ... [2022-11-19 08:04:42,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:42" (1/1) ... [2022-11-19 08:04:42,955 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:42" (1/1) ... [2022-11-19 08:04:42,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:42" (1/1) ... [2022-11-19 08:04:42,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:04:42,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:04:42,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:04:42,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:04:42,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:42" (1/1) ... [2022-11-19 08:04:42,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:04:42,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:04:43,003 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:04:43,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:04:43,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:04:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 08:04:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:04:43,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:04:43,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 08:04:43,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 08:04:43,141 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:04:43,143 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:04:49,371 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:04:49,378 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:04:49,378 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:04:49,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:49 BoogieIcfgContainer [2022-11-19 08:04:49,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:04:49,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:04:49,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:04:49,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:04:49,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:04:42" (1/3) ... [2022-11-19 08:04:49,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73418171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:49, skipping insertion in model container [2022-11-19 08:04:49,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:42" (2/3) ... [2022-11-19 08:04:49,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73418171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:49, skipping insertion in model container [2022-11-19 08:04:49,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:49" (3/3) ... [2022-11-19 08:04:49,397 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_7.i [2022-11-19 08:04:49,417 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:04:49,417 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 08:04:49,473 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:04:49,480 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;@507ceb97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:04:49,480 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 08:04:49,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:04:49,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:04:49,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:04:49,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:04:49,494 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:04:49,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:04:49,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1386425161, now seen corresponding path program 1 times [2022-11-19 08:04:49,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:04:49,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141329726] [2022-11-19 08:04:49,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:04:49,516 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 08:04:49,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:04:49,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/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 08:04:49,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/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 08:04:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:04:50,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 08:04:50,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:04:50,948 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 08:04:50,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:04:50,949 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:04:50,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2141329726] [2022-11-19 08:04:50,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2141329726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:04:50,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:04:50,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:04:50,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155262219] [2022-11-19 08:04:50,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:04:50,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:04:50,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:04:50,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:04:50,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:04:50,988 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 08:04:51,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:04:51,010 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2022-11-19 08:04:51,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:04:51,012 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2022-11-19 08:04:51,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:04:51,020 INFO L225 Difference]: With dead ends: 57 [2022-11-19 08:04:51,020 INFO L226 Difference]: Without dead ends: 26 [2022-11-19 08:04:51,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 08:04:51,027 INFO L413 NwaCegarLoop]: 40 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, 40 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 08:04:51,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:04:51,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-19 08:04:51,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-19 08:04:51,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 08:04:51,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2022-11-19 08:04:51,063 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9 [2022-11-19 08:04:51,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:04:51,064 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-11-19 08:04:51,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 08:04:51,065 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2022-11-19 08:04:51,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:04:51,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:04:51,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:04:51,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/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 08:04:51,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/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 08:04:51,279 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:04:51,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:04:51,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1329166859, now seen corresponding path program 1 times [2022-11-19 08:04:51,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:04:51,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62739315] [2022-11-19 08:04:51,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:04:51,281 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 08:04:51,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:04:51,282 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/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 08:04:51,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/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 08:04:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:04:55,108 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:04:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:04:59,712 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-19 08:04:59,713 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:04:59,715 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-19 08:04:59,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-19 08:04:59,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/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 08:04:59,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/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 08:04:59,921 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-19 08:04:59,924 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:04:59,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:04:59 BoogieIcfgContainer [2022-11-19 08:04:59,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:04:59,949 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:04:59,949 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:04:59,950 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:04:59,950 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:49" (3/4) ... [2022-11-19 08:04:59,952 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-19 08:04:59,996 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:05:00,003 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:05:00,004 INFO L158 Benchmark]: Toolchain (without parser) took 17564.77ms. Allocated memory is still 69.2MB. Free memory was 49.4MB in the beginning and 51.3MB in the end (delta: -1.9MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2022-11-19 08:05:00,004 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 69.2MB. Free memory was 49.8MB in the beginning and 49.7MB in the end (delta: 92.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:05:00,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.69ms. Allocated memory is still 69.2MB. Free memory was 49.3MB in the beginning and 51.6MB in the end (delta: -2.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:05:00,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.75ms. Allocated memory is still 69.2MB. Free memory was 51.6MB in the beginning and 49.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:05:00,005 INFO L158 Benchmark]: Boogie Preprocessor took 63.49ms. Allocated memory is still 69.2MB. Free memory was 49.8MB in the beginning and 48.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:05:00,006 INFO L158 Benchmark]: RCFGBuilder took 6413.27ms. Allocated memory is still 69.2MB. Free memory was 48.0MB in the beginning and 35.6MB in the end (delta: 12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 08:05:00,006 INFO L158 Benchmark]: TraceAbstraction took 10557.46ms. Allocated memory is still 69.2MB. Free memory was 35.1MB in the beginning and 31.0MB in the end (delta: 4.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-11-19 08:05:00,007 INFO L158 Benchmark]: Witness Printer took 53.78ms. Allocated memory is still 69.2MB. Free memory was 31.0MB in the beginning and 51.3MB in the end (delta: -20.3MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-11-19 08:05:00,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 69.2MB. Free memory was 49.8MB in the beginning and 49.7MB in the end (delta: 92.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 395.69ms. Allocated memory is still 69.2MB. Free memory was 49.3MB in the beginning and 51.6MB in the end (delta: -2.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.75ms. Allocated memory is still 69.2MB. Free memory was 51.6MB in the beginning and 49.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.49ms. Allocated memory is still 69.2MB. Free memory was 49.8MB in the beginning and 48.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 6413.27ms. Allocated memory is still 69.2MB. Free memory was 48.0MB in the beginning and 35.6MB in the end (delta: 12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 10557.46ms. Allocated memory is still 69.2MB. Free memory was 35.1MB in the beginning and 31.0MB in the end (delta: 4.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Witness Printer took 53.78ms. Allocated memory is still 69.2MB. Free memory was 31.0MB in the beginning and 51.3MB in the end (delta: -20.3MB). Peak memory consumption was 5.1MB. 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 - CounterExampleResult [Line: 109]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L82] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L98] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L100] CALL, EXPR f(IN) [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.068535327911377, \result=-0.8771225214004517, x=-1.068535327911377] [L100] RET, EXPR f(IN) [L100] CALL, EXPR fp(IN) [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.068535327911377, \result=0.4855014979839325, x=-1.068535327911377] [L100] RET, EXPR fp(IN) [L100] float x = IN - f(IN)/fp(IN); [L108] COND TRUE !(x < 0.1) VAL [IN=-1.068535327911377, x=0.7380965948104858] [L109] reach_error() VAL [IN=-1.068535327911377, x=0.7380965948104858] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 10.5s, 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, 40 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 40 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 5.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 1 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 proved your program to be incorrect! [2022-11-19 08:05:00,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e59c0f-0243-415b-908a-4aed3e38ffc1/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE