./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_2+newton_1_6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/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_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_1_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/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_579e52d5-fb8d-4329-a503-125ff735dac6/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 bad8530dca87d639d49a604251c8b439dfbb73c75b0c2bc923bd7483617ddb0d --- 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 06:07:10,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:07:10,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:07:10,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:07:10,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:07:10,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:07:10,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:07:10,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:07:10,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:07:10,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:07:10,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:07:10,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:07:10,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:07:10,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:07:10,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:07:10,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:07:10,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:07:10,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:07:10,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:07:10,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:07:10,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:07:10,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:07:10,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:07:10,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:07:10,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:07:10,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:07:10,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:07:10,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:07:10,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:07:10,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:07:10,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:07:10,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:07:10,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:07:10,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:07:10,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:07:10,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:07:10,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:07:10,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:07:10,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:07:10,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:07:10,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:07:10,575 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:07:10,596 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:07:10,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:07:10,596 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:07:10,596 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:07:10,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:07:10,597 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:07:10,597 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:07:10,598 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:07:10,598 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:07:10,598 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:07:10,598 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:07:10,598 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:07:10,598 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:07:10,598 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:07:10,599 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:07:10,599 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:07:10,599 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:07:10,599 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:07:10,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:07:10,600 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:07:10,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:07:10,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:07:10,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:07:10,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:07:10,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:07:10,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:07:10,601 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:07:10,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:07:10,601 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:07:10,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:07:10,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:07:10,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:07:10,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:07:10,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:07:10,602 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:07:10,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:07:10,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:07:10,603 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:07:10,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:07:10,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:07:10,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:07:10,603 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_579e52d5-fb8d-4329-a503-125ff735dac6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bad8530dca87d639d49a604251c8b439dfbb73c75b0c2bc923bd7483617ddb0d [2022-12-14 06:07:10,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:07:10,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:07:10,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:07:10,782 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:07:10,782 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:07:10,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/combinations/gcd_2+newton_1_6.i [2022-12-14 06:07:13,281 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:07:13,408 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:07:13,409 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/sv-benchmarks/c/combinations/gcd_2+newton_1_6.i [2022-12-14 06:07:13,415 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/data/188f4175a/6d518883465b4db1a81de02a5359dee5/FLAG9c448c9ae [2022-12-14 06:07:13,425 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/data/188f4175a/6d518883465b4db1a81de02a5359dee5 [2022-12-14 06:07:13,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:07:13,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:07:13,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:07:13,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:07:13,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:07:13,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:07:13" (1/1) ... [2022-12-14 06:07:13,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a5c303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:13, skipping insertion in model container [2022-12-14 06:07:13,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:07:13" (1/1) ... [2022-12-14 06:07:13,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:07:13,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:07:13,574 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_579e52d5-fb8d-4329-a503-125ff735dac6/sv-benchmarks/c/combinations/gcd_2+newton_1_6.i[1226,1239] [2022-12-14 06:07:13,595 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_579e52d5-fb8d-4329-a503-125ff735dac6/sv-benchmarks/c/combinations/gcd_2+newton_1_6.i[2820,2833] [2022-12-14 06:07:13,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:07:13,606 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:07:13,618 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_579e52d5-fb8d-4329-a503-125ff735dac6/sv-benchmarks/c/combinations/gcd_2+newton_1_6.i[1226,1239] [2022-12-14 06:07:13,626 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_579e52d5-fb8d-4329-a503-125ff735dac6/sv-benchmarks/c/combinations/gcd_2+newton_1_6.i[2820,2833] [2022-12-14 06:07:13,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:07:13,636 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:07:13,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:13 WrapperNode [2022-12-14 06:07:13,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:07:13,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:07:13,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:07:13,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:07:13,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:13" (1/1) ... [2022-12-14 06:07:13,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:13" (1/1) ... [2022-12-14 06:07:13,669 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 86 [2022-12-14 06:07:13,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:07:13,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:07:13,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:07:13,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:07:13,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:13" (1/1) ... [2022-12-14 06:07:13,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:13" (1/1) ... [2022-12-14 06:07:13,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:13" (1/1) ... [2022-12-14 06:07:13,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:13" (1/1) ... [2022-12-14 06:07:13,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:13" (1/1) ... [2022-12-14 06:07:13,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:13" (1/1) ... [2022-12-14 06:07:13,685 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:13" (1/1) ... [2022-12-14 06:07:13,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:13" (1/1) ... [2022-12-14 06:07:13,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:07:13,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:07:13,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:07:13,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:07:13,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:13" (1/1) ... [2022-12-14 06:07:13,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:07:13,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:07:13,711 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:07:13,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:07:13,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:07:13,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:07:13,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:07:13,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:07:13,799 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:07:13,801 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:07:13,928 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:07:13,973 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:07:13,973 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:07:13,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:07:13 BoogieIcfgContainer [2022-12-14 06:07:13,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:07:13,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:07:13,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:07:13,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:07:13,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:07:13" (1/3) ... [2022-12-14 06:07:13,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a93e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:07:13, skipping insertion in model container [2022-12-14 06:07:13,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:13" (2/3) ... [2022-12-14 06:07:13,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a93e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:07:13, skipping insertion in model container [2022-12-14 06:07:13,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:07:13" (3/3) ... [2022-12-14 06:07:13,982 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_6.i [2022-12-14 06:07:13,996 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:07:13,996 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 06:07:14,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:07:14,038 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;@116ea55b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:07:14,038 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 06:07:14,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 14 states have internal predecessors, (19), 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 06:07:14,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 06:07:14,045 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:07:14,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 06:07:14,046 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:07:14,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:07:14,050 INFO L85 PathProgramCache]: Analyzing trace with hash 3514600, now seen corresponding path program 1 times [2022-12-14 06:07:14,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:07:14,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693281306] [2022-12-14 06:07:14,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:07:14,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:07:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:07:14,154 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:07:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:07:14,185 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 06:07:14,187 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:07:14,188 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-14 06:07:14,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-14 06:07:14,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:07:14,195 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 06:07:14,199 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:07:14,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:07:14 BoogieIcfgContainer [2022-12-14 06:07:14,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:07:14,217 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:07:14,217 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:07:14,218 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:07:14,218 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:07:13" (3/4) ... [2022-12-14 06:07:14,221 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 06:07:14,221 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:07:14,223 INFO L158 Benchmark]: Toolchain (without parser) took 794.40ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 85.7MB in the beginning and 103.5MB in the end (delta: -17.9MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-12-14 06:07:14,223 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory is still 54.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:07:14,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.03ms. Allocated memory is still 113.2MB. Free memory was 85.3MB in the beginning and 74.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 06:07:14,224 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.03ms. Allocated memory is still 113.2MB. Free memory was 74.0MB in the beginning and 72.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:07:14,225 INFO L158 Benchmark]: Boogie Preprocessor took 17.29ms. Allocated memory is still 113.2MB. Free memory was 72.3MB in the beginning and 70.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:07:14,225 INFO L158 Benchmark]: RCFGBuilder took 287.75ms. Allocated memory is still 113.2MB. Free memory was 70.6MB in the beginning and 55.6MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 06:07:14,226 INFO L158 Benchmark]: TraceAbstraction took 239.81ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 55.2MB in the beginning and 103.5MB in the end (delta: -48.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:07:14,226 INFO L158 Benchmark]: Witness Printer took 4.31ms. Allocated memory is still 136.3MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:07:14,229 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory is still 54.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.03ms. Allocated memory is still 113.2MB. Free memory was 85.3MB in the beginning and 74.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.03ms. Allocated memory is still 113.2MB. Free memory was 74.0MB in the beginning and 72.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.29ms. Allocated memory is still 113.2MB. Free memory was 72.3MB in the beginning and 70.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 287.75ms. Allocated memory is still 113.2MB. Free memory was 70.6MB in the beginning and 55.6MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 239.81ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 55.2MB in the beginning and 103.5MB in the end (delta: -48.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.31ms. Allocated memory is still 136.3MB. Free memory is still 103.5MB. 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: 102]: 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 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 80. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=109] [L102] 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 1 procedures, 15 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=15occurred 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 06:07:14,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/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_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_1_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/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_579e52d5-fb8d-4329-a503-125ff735dac6/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 bad8530dca87d639d49a604251c8b439dfbb73c75b0c2bc923bd7483617ddb0d --- 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 06:07:15,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:07:15,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:07:15,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:07:15,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:07:15,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:07:15,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:07:15,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:07:15,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:07:15,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:07:15,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:07:15,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:07:15,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:07:15,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:07:15,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:07:15,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:07:15,886 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:07:15,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:07:15,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:07:15,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:07:15,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:07:15,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:07:15,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:07:15,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:07:15,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:07:15,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:07:15,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:07:15,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:07:15,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:07:15,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:07:15,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:07:15,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:07:15,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:07:15,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:07:15,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:07:15,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:07:15,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:07:15,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:07:15,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:07:15,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:07:15,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:07:15,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 06:07:15,923 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:07:15,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:07:15,923 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:07:15,923 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:07:15,924 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:07:15,924 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:07:15,924 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:07:15,924 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:07:15,924 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:07:15,924 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:07:15,924 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:07:15,925 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:07:15,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:07:15,925 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:07:15,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:07:15,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:07:15,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:07:15,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:07:15,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:07:15,926 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 06:07:15,926 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 06:07:15,926 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 06:07:15,926 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:07:15,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:07:15,926 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:07:15,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:07:15,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:07:15,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 06:07:15,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:07:15,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:07:15,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:07:15,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:07:15,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:07:15,927 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 06:07:15,927 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 06:07:15,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:07:15,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:07:15,928 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 06:07:15,928 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_579e52d5-fb8d-4329-a503-125ff735dac6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bad8530dca87d639d49a604251c8b439dfbb73c75b0c2bc923bd7483617ddb0d [2022-12-14 06:07:16,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:07:16,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:07:16,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:07:16,148 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:07:16,148 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:07:16,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/combinations/gcd_2+newton_1_6.i [2022-12-14 06:07:18,660 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:07:18,815 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:07:18,815 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/sv-benchmarks/c/combinations/gcd_2+newton_1_6.i [2022-12-14 06:07:18,822 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/data/3fee3dd85/bf388d7da815425784ac83894359b70c/FLAG26ce04c27 [2022-12-14 06:07:18,834 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/data/3fee3dd85/bf388d7da815425784ac83894359b70c [2022-12-14 06:07:18,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:07:18,837 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:07:18,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:07:18,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:07:18,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:07:18,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:07:18" (1/1) ... [2022-12-14 06:07:18,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea24edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:18, skipping insertion in model container [2022-12-14 06:07:18,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:07:18" (1/1) ... [2022-12-14 06:07:18,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:07:18,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:07:18,980 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_579e52d5-fb8d-4329-a503-125ff735dac6/sv-benchmarks/c/combinations/gcd_2+newton_1_6.i[1226,1239] [2022-12-14 06:07:19,002 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_579e52d5-fb8d-4329-a503-125ff735dac6/sv-benchmarks/c/combinations/gcd_2+newton_1_6.i[2820,2833] [2022-12-14 06:07:19,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:07:19,015 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:07:19,026 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_579e52d5-fb8d-4329-a503-125ff735dac6/sv-benchmarks/c/combinations/gcd_2+newton_1_6.i[1226,1239] [2022-12-14 06:07:19,036 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_579e52d5-fb8d-4329-a503-125ff735dac6/sv-benchmarks/c/combinations/gcd_2+newton_1_6.i[2820,2833] [2022-12-14 06:07:19,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:07:19,050 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:07:19,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:19 WrapperNode [2022-12-14 06:07:19,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:07:19,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:07:19,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:07:19,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:07:19,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:19" (1/1) ... [2022-12-14 06:07:19,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:19" (1/1) ... [2022-12-14 06:07:19,087 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 81 [2022-12-14 06:07:19,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:07:19,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:07:19,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:07:19,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:07:19,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:19" (1/1) ... [2022-12-14 06:07:19,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:19" (1/1) ... [2022-12-14 06:07:19,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:19" (1/1) ... [2022-12-14 06:07:19,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:19" (1/1) ... [2022-12-14 06:07:19,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:19" (1/1) ... [2022-12-14 06:07:19,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:19" (1/1) ... [2022-12-14 06:07:19,116 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:19" (1/1) ... [2022-12-14 06:07:19,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:19" (1/1) ... [2022-12-14 06:07:19,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:07:19,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:07:19,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:07:19,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:07:19,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:19" (1/1) ... [2022-12-14 06:07:19,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:07:19,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:07:19,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:07:19,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:07:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:07:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 06:07:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:07:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:07:19,237 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:07:19,238 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:07:25,668 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:07:25,673 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:07:25,673 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:07:25,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:07:25 BoogieIcfgContainer [2022-12-14 06:07:25,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:07:25,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:07:25,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:07:25,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:07:25,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:07:18" (1/3) ... [2022-12-14 06:07:25,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100ac568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:07:25, skipping insertion in model container [2022-12-14 06:07:25,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:19" (2/3) ... [2022-12-14 06:07:25,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100ac568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:07:25, skipping insertion in model container [2022-12-14 06:07:25,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:07:25" (3/3) ... [2022-12-14 06:07:25,682 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_6.i [2022-12-14 06:07:25,695 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:07:25,696 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 06:07:25,727 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:07:25,732 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;@54fd5e0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:07:25,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 06:07:25,735 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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 06:07:25,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 06:07:25,739 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:07:25,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:07:25,740 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:07:25,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:07:25,743 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-12-14 06:07:25,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:07:25,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889068023] [2022-12-14 06:07:25,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:07:25,758 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 06:07:25,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:07:25,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/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 06:07:25,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/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 06:07:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:07:26,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 06:07:26,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:07:26,874 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 06:07:26,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:07:26,875 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:07:26,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889068023] [2022-12-14 06:07:26,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [889068023] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:07:26,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:07:26,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:07:26,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090984827] [2022-12-14 06:07:26,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:07:26,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:07:26,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:07:26,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:07:26,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:07:26,905 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 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 06:07:26,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:07:26,921 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-12-14 06:07:26,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:07:26,923 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 06:07:26,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:07:26,928 INFO L225 Difference]: With dead ends: 47 [2022-12-14 06:07:26,928 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 06:07:26,930 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 06:07:26,933 INFO L413 NwaCegarLoop]: 31 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, 31 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 06:07:26,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:07:26,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 06:07:26,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-14 06:07:26,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 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 06:07:26,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-14 06:07:26,955 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-12-14 06:07:26,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:07:26,956 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-14 06:07:26,956 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 06:07:26,956 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-14 06:07:26,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 06:07:26,956 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:07:26,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:07:26,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/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 06:07:27,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/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 06:07:27,159 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:07:27,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:07:27,161 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-12-14 06:07:27,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:07:27,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [175773704] [2022-12-14 06:07:27,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:07:27,164 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 06:07:27,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:07:27,168 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/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 06:07:27,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/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 06:07:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:07:38,119 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:07:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:07:48,781 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 06:07:48,781 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:07:48,783 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-14 06:07:48,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-14 06:07:48,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/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 06:07:48,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/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 06:07:48,994 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 06:07:49,005 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:07:49,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:07:49 BoogieIcfgContainer [2022-12-14 06:07:49,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:07:49,031 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:07:49,032 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:07:49,032 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:07:49,032 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:07:25" (3/4) ... [2022-12-14 06:07:49,033 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 06:07:49,056 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:07:49,056 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:07:49,057 INFO L158 Benchmark]: Toolchain (without parser) took 30219.52ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 46.1MB in the beginning and 41.0MB in the end (delta: 5.1MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2022-12-14 06:07:49,057 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 44.0MB. Free memory was 22.7MB in the beginning and 22.7MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:07:49,057 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.51ms. Allocated memory is still 67.1MB. Free memory was 45.9MB in the beginning and 33.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 06:07:49,058 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.77ms. Allocated memory is still 67.1MB. Free memory was 33.7MB in the beginning and 31.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:07:49,058 INFO L158 Benchmark]: Boogie Preprocessor took 31.16ms. Allocated memory is still 67.1MB. Free memory was 31.9MB in the beginning and 48.3MB in the end (delta: -16.3MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-12-14 06:07:49,058 INFO L158 Benchmark]: RCFGBuilder took 6555.86ms. Allocated memory is still 67.1MB. Free memory was 48.3MB in the beginning and 36.3MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 06:07:49,058 INFO L158 Benchmark]: TraceAbstraction took 23354.21ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 35.7MB in the beginning and 43.1MB in the end (delta: -7.4MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-12-14 06:07:49,059 INFO L158 Benchmark]: Witness Printer took 24.85ms. Allocated memory is still 81.8MB. Free memory was 43.1MB in the beginning and 41.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:07:49,060 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 44.0MB. Free memory was 22.7MB in the beginning and 22.7MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.51ms. Allocated memory is still 67.1MB. Free memory was 45.9MB in the beginning and 33.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.77ms. Allocated memory is still 67.1MB. Free memory was 33.7MB in the beginning and 31.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.16ms. Allocated memory is still 67.1MB. Free memory was 31.9MB in the beginning and 48.3MB in the end (delta: -16.3MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6555.86ms. Allocated memory is still 67.1MB. Free memory was 48.3MB in the beginning and 36.3MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 23354.21ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 35.7MB in the beginning and 43.1MB in the end (delta: -7.4MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Witness Printer took 24.85ms. Allocated memory is still 81.8MB. Free memory was 43.1MB in the beginning and 41.0MB 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: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L93] CALL, EXPR f(IN) [L80] 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)=-0.8611910343170166, \result=-0.7587577700614929, x=-0.8611910343170166] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.8611910343170166, \result=0.6526601314544678, x=-0.8611910343170166] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-0.8611910343170166, x=0.30137085914611816] [L102] reach_error() VAL [IN=-0.8611910343170166, x=0.30137085914611816] - 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 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 23.3s, 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, 31 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, 31 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=27occurred 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, 11.9s 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 06:07:49,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_579e52d5-fb8d-4329-a503-125ff735dac6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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