./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_4+newton_1_6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_1_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh --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 8d5852a96a997fd819a9dfc3e184ca8c6360d14970e60ecfb10d610384c98f94 --- 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-2329fc7 [2022-12-14 13:44:11,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:44:11,543 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:44:11,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:44:11,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:44:11,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:44:11,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:44:11,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:44:11,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:44:11,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:44:11,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:44:11,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:44:11,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:44:11,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:44:11,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:44:11,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:44:11,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:44:11,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:44:11,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:44:11,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:44:11,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:44:11,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:44:11,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:44:11,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:44:11,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:44:11,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:44:11,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:44:11,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:44:11,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:44:11,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:44:11,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:44:11,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:44:11,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:44:11,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:44:11,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:44:11,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:44:11,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:44:11,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:44:11,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:44:11,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:44:11,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:44:11,587 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 13:44:11,608 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:44:11,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:44:11,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:44:11,609 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:44:11,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:44:11,609 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:44:11,610 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:44:11,610 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:44:11,610 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:44:11,610 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:44:11,610 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:44:11,611 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:44:11,611 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:44:11,611 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:44:11,611 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:44:11,611 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:44:11,612 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:44:11,612 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:44:11,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:44:11,612 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:44:11,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:44:11,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:44:11,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:44:11,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:44:11,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:44:11,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:44:11,613 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:44:11,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:44:11,613 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:44:11,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:44:11,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:44:11,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:44:11,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:44:11,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:44:11,614 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:44:11,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:44:11,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:44:11,615 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:44:11,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:44:11,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:44:11,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:44:11,615 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_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d5852a96a997fd819a9dfc3e184ca8c6360d14970e60ecfb10d610384c98f94 [2022-12-14 13:44:11,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:44:11,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:44:11,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:44:11,824 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:44:11,824 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:44:11,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/combinations/gcd_4+newton_1_6.i [2022-12-14 13:44:14,307 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:44:14,471 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:44:14,471 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/sv-benchmarks/c/combinations/gcd_4+newton_1_6.i [2022-12-14 13:44:14,477 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/data/e8871704a/03241e671fda48a3af8870f3b1180e68/FLAGeec09dd31 [2022-12-14 13:44:14,887 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/data/e8871704a/03241e671fda48a3af8870f3b1180e68 [2022-12-14 13:44:14,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:44:14,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:44:14,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:44:14,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:44:14,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:44:14,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:44:14" (1/1) ... [2022-12-14 13:44:14,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34018f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:14, skipping insertion in model container [2022-12-14 13:44:14,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:44:14" (1/1) ... [2022-12-14 13:44:14,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:44:14,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:44:15,018 WARN L237 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_1cfa67af-f55a-45d4-997e-43bc0801de43/sv-benchmarks/c/combinations/gcd_4+newton_1_6.i[1224,1237] [2022-12-14 13:44:15,039 WARN L237 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_1cfa67af-f55a-45d4-997e-43bc0801de43/sv-benchmarks/c/combinations/gcd_4+newton_1_6.i[2806,2819] [2022-12-14 13:44:15,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:44:15,048 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:44:15,057 WARN L237 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_1cfa67af-f55a-45d4-997e-43bc0801de43/sv-benchmarks/c/combinations/gcd_4+newton_1_6.i[1224,1237] [2022-12-14 13:44:15,062 WARN L237 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_1cfa67af-f55a-45d4-997e-43bc0801de43/sv-benchmarks/c/combinations/gcd_4+newton_1_6.i[2806,2819] [2022-12-14 13:44:15,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:44:15,073 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:44:15,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:15 WrapperNode [2022-12-14 13:44:15,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:44:15,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:44:15,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:44:15,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:44:15,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:15" (1/1) ... [2022-12-14 13:44:15,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:15" (1/1) ... [2022-12-14 13:44:15,098 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 81 [2022-12-14 13:44:15,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:44:15,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:44:15,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:44:15,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:44:15,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:15" (1/1) ... [2022-12-14 13:44:15,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:15" (1/1) ... [2022-12-14 13:44:15,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:15" (1/1) ... [2022-12-14 13:44:15,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:15" (1/1) ... [2022-12-14 13:44:15,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:15" (1/1) ... [2022-12-14 13:44:15,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:15" (1/1) ... [2022-12-14 13:44:15,113 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:15" (1/1) ... [2022-12-14 13:44:15,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:15" (1/1) ... [2022-12-14 13:44:15,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:44:15,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:44:15,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:44:15,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:44:15,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:15" (1/1) ... [2022-12-14 13:44:15,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:44:15,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:44:15,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:44:15,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:44:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:44:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:44:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:44:15,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:44:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 13:44:15,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 13:44:15,219 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:44:15,220 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:44:15,322 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:44:15,361 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:44:15,361 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 13:44:15,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:44:15 BoogieIcfgContainer [2022-12-14 13:44:15,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:44:15,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:44:15,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:44:15,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:44:15,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:44:14" (1/3) ... [2022-12-14 13:44:15,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d80682c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:44:15, skipping insertion in model container [2022-12-14 13:44:15,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:15" (2/3) ... [2022-12-14 13:44:15,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d80682c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:44:15, skipping insertion in model container [2022-12-14 13:44:15,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:44:15" (3/3) ... [2022-12-14 13:44:15,370 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_6.i [2022-12-14 13:44:15,385 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:44:15,385 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:44:15,421 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:44:15,425 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;@4d1ff324, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:44:15,425 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:44:15,428 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) [2022-12-14 13:44:15,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 13:44:15,435 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:44:15,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 13:44:15,436 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:44:15,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:44:15,440 INFO L85 PathProgramCache]: Analyzing trace with hash 3948908, now seen corresponding path program 1 times [2022-12-14 13:44:15,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:44:15,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737915393] [2022-12-14 13:44:15,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:44:15,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:44:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:44:15,529 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:44:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:44:15,563 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 13:44:15,564 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:44:15,565 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-14 13:44:15,566 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-14 13:44:15,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:44:15,570 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 13:44:15,573 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:44:15,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:44:15 BoogieIcfgContainer [2022-12-14 13:44:15,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:44:15,588 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:44:15,588 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:44:15,588 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:44:15,588 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:44:15" (3/4) ... [2022-12-14 13:44:15,592 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 13:44:15,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:44:15,593 INFO L158 Benchmark]: Toolchain (without parser) took 701.69ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 88.2MB in the beginning and 115.7MB in the end (delta: -27.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:44:15,594 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 121.6MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:44:15,594 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.25ms. Allocated memory is still 121.6MB. Free memory was 88.2MB in the beginning and 76.8MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 13:44:15,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.64ms. Allocated memory is still 121.6MB. Free memory was 76.8MB in the beginning and 74.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:44:15,595 INFO L158 Benchmark]: Boogie Preprocessor took 16.29ms. Allocated memory is still 121.6MB. Free memory was 74.8MB in the beginning and 73.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:44:15,596 INFO L158 Benchmark]: RCFGBuilder took 247.56ms. Allocated memory is still 121.6MB. Free memory was 73.6MB in the beginning and 58.5MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 13:44:15,596 INFO L158 Benchmark]: TraceAbstraction took 221.44ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 57.6MB in the beginning and 115.7MB in the end (delta: -58.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:44:15,597 INFO L158 Benchmark]: Witness Printer took 4.66ms. Allocated memory is still 146.8MB. Free memory is still 115.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:44:15,600 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 121.6MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 181.25ms. Allocated memory is still 121.6MB. Free memory was 88.2MB in the beginning and 76.8MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.64ms. Allocated memory is still 121.6MB. Free memory was 76.8MB in the beginning and 74.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.29ms. Allocated memory is still 121.6MB. Free memory was 74.8MB in the beginning and 73.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 247.56ms. Allocated memory is still 121.6MB. Free memory was 73.6MB in the beginning and 58.5MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 221.44ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 57.6MB in the beginning and 115.7MB in the end (delta: -58.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.66ms. Allocated memory is still 146.8MB. Free memory is still 115.7MB. 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 > -1.2f && IN < 1.2f) [L82] COND FALSE !(!cond) [L98] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [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 [2022-12-14 13:44:15,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/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_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_1_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh --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 8d5852a96a997fd819a9dfc3e184ca8c6360d14970e60ecfb10d610384c98f94 --- 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-2329fc7 [2022-12-14 13:44:17,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:44:17,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:44:17,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:44:17,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:44:17,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:44:17,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:44:17,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:44:17,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:44:17,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:44:17,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:44:17,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:44:17,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:44:17,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:44:17,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:44:17,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:44:17,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:44:17,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:44:17,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:44:17,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:44:17,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:44:17,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:44:17,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:44:17,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:44:17,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:44:17,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:44:17,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:44:17,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:44:17,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:44:17,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:44:17,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:44:17,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:44:17,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:44:17,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:44:17,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:44:17,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:44:17,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:44:17,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:44:17,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:44:17,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:44:17,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:44:17,421 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 13:44:17,445 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:44:17,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:44:17,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:44:17,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:44:17,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:44:17,447 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:44:17,447 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:44:17,447 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:44:17,447 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:44:17,448 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:44:17,448 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:44:17,448 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:44:17,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:44:17,449 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:44:17,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:44:17,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:44:17,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:44:17,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:44:17,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:44:17,450 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:44:17,450 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 13:44:17,450 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 13:44:17,451 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:44:17,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:44:17,451 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:44:17,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:44:17,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:44:17,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 13:44:17,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:44:17,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:44:17,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:44:17,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:44:17,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:44:17,459 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 13:44:17,459 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 13:44:17,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:44:17,459 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:44:17,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 13:44:17,460 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_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d5852a96a997fd819a9dfc3e184ca8c6360d14970e60ecfb10d610384c98f94 [2022-12-14 13:44:17,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:44:17,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:44:17,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:44:17,729 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:44:17,729 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:44:17,730 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/combinations/gcd_4+newton_1_6.i [2022-12-14 13:44:20,284 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:44:20,437 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:44:20,438 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/sv-benchmarks/c/combinations/gcd_4+newton_1_6.i [2022-12-14 13:44:20,451 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/data/9adeef679/119d5371b40b4bd390a0a07fa331806c/FLAGf77fb262f [2022-12-14 13:44:20,465 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/data/9adeef679/119d5371b40b4bd390a0a07fa331806c [2022-12-14 13:44:20,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:44:20,470 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:44:20,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:44:20,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:44:20,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:44:20,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:44:20" (1/1) ... [2022-12-14 13:44:20,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19ddb05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:20, skipping insertion in model container [2022-12-14 13:44:20,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:44:20" (1/1) ... [2022-12-14 13:44:20,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:44:20,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:44:20,628 WARN L237 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_1cfa67af-f55a-45d4-997e-43bc0801de43/sv-benchmarks/c/combinations/gcd_4+newton_1_6.i[1224,1237] [2022-12-14 13:44:20,651 WARN L237 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_1cfa67af-f55a-45d4-997e-43bc0801de43/sv-benchmarks/c/combinations/gcd_4+newton_1_6.i[2806,2819] [2022-12-14 13:44:20,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:44:20,665 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:44:20,679 WARN L237 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_1cfa67af-f55a-45d4-997e-43bc0801de43/sv-benchmarks/c/combinations/gcd_4+newton_1_6.i[1224,1237] [2022-12-14 13:44:20,689 WARN L237 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_1cfa67af-f55a-45d4-997e-43bc0801de43/sv-benchmarks/c/combinations/gcd_4+newton_1_6.i[2806,2819] [2022-12-14 13:44:20,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:44:20,705 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:44:20,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:20 WrapperNode [2022-12-14 13:44:20,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:44:20,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:44:20,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:44:20,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:44:20,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:20" (1/1) ... [2022-12-14 13:44:20,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:20" (1/1) ... [2022-12-14 13:44:20,744 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 78 [2022-12-14 13:44:20,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:44:20,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:44:20,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:44:20,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:44:20,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:20" (1/1) ... [2022-12-14 13:44:20,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:20" (1/1) ... [2022-12-14 13:44:20,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:20" (1/1) ... [2022-12-14 13:44:20,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:20" (1/1) ... [2022-12-14 13:44:20,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:20" (1/1) ... [2022-12-14 13:44:20,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:20" (1/1) ... [2022-12-14 13:44:20,769 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:20" (1/1) ... [2022-12-14 13:44:20,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:20" (1/1) ... [2022-12-14 13:44:20,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:44:20,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:44:20,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:44:20,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:44:20,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:20" (1/1) ... [2022-12-14 13:44:20,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:44:20,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:44:20,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:44:20,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:44:20,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:44:20,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 13:44:20,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:44:20,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:44:20,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 13:44:20,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 13:44:20,895 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:44:20,896 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:44:27,746 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:44:27,751 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:44:27,752 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 13:44:27,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:44:27 BoogieIcfgContainer [2022-12-14 13:44:27,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:44:27,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:44:27,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:44:27,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:44:27,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:44:20" (1/3) ... [2022-12-14 13:44:27,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53eff1b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:44:27, skipping insertion in model container [2022-12-14 13:44:27,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:44:20" (2/3) ... [2022-12-14 13:44:27,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53eff1b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:44:27, skipping insertion in model container [2022-12-14 13:44:27,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:44:27" (3/3) ... [2022-12-14 13:44:27,760 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_6.i [2022-12-14 13:44:27,775 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:44:27,776 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:44:27,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:44:27,814 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;@6f2e08cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:44:27,814 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:44:27,817 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) [2022-12-14 13:44:27,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 13:44:27,822 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:44:27,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:44:27,823 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:44:27,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:44:27,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1386425161, now seen corresponding path program 1 times [2022-12-14 13:44:27,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:44:27,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511689023] [2022-12-14 13:44:27,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:44:27,836 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 [2022-12-14 13:44:27,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:44:27,837 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/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) [2022-12-14 13:44:27,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/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 [2022-12-14 13:44:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:44:28,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 13:44:28,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:44:28,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:44:28,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:44:28,966 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:44:28,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511689023] [2022-12-14 13:44:28,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511689023] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:44:28,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:44:28,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:44:28,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239260406] [2022-12-14 13:44:28,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:44:28,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:44:28,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:44:28,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:44:28,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:44:28,992 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) [2022-12-14 13:44:29,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:44:29,007 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2022-12-14 13:44:29,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:44:29,009 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 [2022-12-14 13:44:29,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:44:29,013 INFO L225 Difference]: With dead ends: 57 [2022-12-14 13:44:29,014 INFO L226 Difference]: Without dead ends: 26 [2022-12-14 13:44:29,015 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 [2022-12-14 13:44:29,018 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 [2022-12-14 13:44:29,018 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] [2022-12-14 13:44:29,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-12-14 13:44:29,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-12-14 13:44:29,047 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) [2022-12-14 13:44:29,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2022-12-14 13:44:29,049 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9 [2022-12-14 13:44:29,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:44:29,049 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-12-14 13:44:29,049 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) [2022-12-14 13:44:29,049 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2022-12-14 13:44:29,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 13:44:29,050 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:44:29,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:44:29,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/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 [2022-12-14 13:44:29,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/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 [2022-12-14 13:44:29,256 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:44:29,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:44:29,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1329166859, now seen corresponding path program 1 times [2022-12-14 13:44:29,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:44:29,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118512071] [2022-12-14 13:44:29,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:44:29,261 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 [2022-12-14 13:44:29,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:44:29,264 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/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) [2022-12-14 13:44:29,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/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 [2022-12-14 13:44:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:44:34,849 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:44:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:44:52,326 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 13:44:52,327 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:44:52,328 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-14 13:44:52,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-14 13:44:52,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 13:44:52,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/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 [2022-12-14 13:44:52,540 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 13:44:52,550 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:44:52,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:44:52 BoogieIcfgContainer [2022-12-14 13:44:52,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:44:52,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:44:52,584 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:44:52,584 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:44:52,584 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:44:27" (3/4) ... [2022-12-14 13:44:52,586 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 13:44:52,609 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 13:44:52,610 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:44:52,610 INFO L158 Benchmark]: Toolchain (without parser) took 32140.65ms. Allocated memory is still 75.5MB. Free memory was 56.3MB in the beginning and 43.3MB in the end (delta: 13.0MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2022-12-14 13:44:52,610 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory is still 33.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:44:52,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.84ms. Allocated memory is still 75.5MB. Free memory was 56.0MB in the beginning and 44.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 13:44:52,611 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.90ms. Allocated memory is still 75.5MB. Free memory was 44.1MB in the beginning and 42.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:44:52,611 INFO L158 Benchmark]: Boogie Preprocessor took 28.30ms. Allocated memory is still 75.5MB. Free memory was 42.1MB in the beginning and 40.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:44:52,611 INFO L158 Benchmark]: RCFGBuilder took 6979.81ms. Allocated memory is still 75.5MB. Free memory was 40.5MB in the beginning and 51.0MB in the end (delta: -10.5MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2022-12-14 13:44:52,611 INFO L158 Benchmark]: TraceAbstraction took 24828.11ms. Allocated memory is still 75.5MB. Free memory was 50.6MB in the beginning and 45.4MB in the end (delta: 5.2MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2022-12-14 13:44:52,612 INFO L158 Benchmark]: Witness Printer took 25.91ms. Allocated memory is still 75.5MB. Free memory was 45.4MB in the beginning and 43.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:44:52,613 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory is still 33.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.84ms. Allocated memory is still 75.5MB. Free memory was 56.0MB in the beginning and 44.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.90ms. Allocated memory is still 75.5MB. Free memory was 44.1MB in the beginning and 42.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.30ms. Allocated memory is still 75.5MB. Free memory was 42.1MB in the beginning and 40.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 6979.81ms. Allocated memory is still 75.5MB. Free memory was 40.5MB in the beginning and 51.0MB in the end (delta: -10.5MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 24828.11ms. Allocated memory is still 75.5MB. Free memory was 50.6MB in the beginning and 45.4MB in the end (delta: 5.2MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Witness Printer took 25.91ms. Allocated memory is still 75.5MB. Free memory was 45.4MB in the beginning and 43.3MB in the end (delta: 2.1MB). 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 - 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 > -1.2f && IN < 1.2f) [L82] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L98] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [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)=-1.1113930940628052, \result=-0.8971413373947144, x=-1.1113930940628052] [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)=-1.1113930940628052, \result=0.4485912024974823, x=-1.1113930940628052] [L100] RET, EXPR fp(IN) [L100] float x = IN - f(IN)/fp(IN); [L108] COND TRUE !(x < 0.1) VAL [IN=-1.1113930940628052, x=0.8885153532028198] [L109] reach_error() VAL [IN=-1.1113930940628052, x=0.8885153532028198] - 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: 24.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, 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, 6.5s 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! [2022-12-14 13:44:52,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cfa67af-f55a-45d4-997e-43bc0801de43/bin/utaipan-gh47qXpMRh/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