./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_3+newton_1_8.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_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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 c79b5b9c620a89b5ccbc8a9238defbac5dd93f8a16c11c7717d83a12d6f10e40 --- 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 10:51:33,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:51:33,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:51:33,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:51:33,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:51:33,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:51:33,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:51:33,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:51:33,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:51:33,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:51:33,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:51:33,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:51:33,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:51:33,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:51:33,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:51:33,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:51:33,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:51:33,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:51:33,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:51:33,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:51:33,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:51:33,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:51:33,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:51:33,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:51:33,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:51:33,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:51:33,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:51:33,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:51:33,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:51:33,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:51:33,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:51:33,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:51:33,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:51:33,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:51:33,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:51:33,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:51:33,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:51:33,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:51:33,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:51:33,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:51:33,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:51:33,646 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 10:51:33,660 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:51:33,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:51:33,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:51:33,661 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:51:33,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:51:33,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:51:33,661 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:51:33,661 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:51:33,661 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:51:33,668 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:51:33,668 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:51:33,668 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:51:33,668 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:51:33,668 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:51:33,669 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:51:33,669 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:51:33,669 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:51:33,669 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:51:33,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:51:33,670 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:51:33,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:51:33,670 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:51:33,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:51:33,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:51:33,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:51:33,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:51:33,670 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:51:33,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:51:33,671 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:51:33,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:51:33,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:51:33,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:51:33,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:51:33,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:51:33,672 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:51:33,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:51:33,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:51:33,672 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:51:33,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:51:33,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:51:33,672 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:51:33,672 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_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c79b5b9c620a89b5ccbc8a9238defbac5dd93f8a16c11c7717d83a12d6f10e40 [2022-12-14 10:51:33,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:51:33,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:51:33,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:51:33,857 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:51:33,857 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:51:33,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/combinations/gcd_3+newton_1_8.i [2022-12-14 10:51:36,458 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:51:36,596 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:51:36,597 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i [2022-12-14 10:51:36,602 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/data/135ce9efb/6797e54c787542089b8af1868c49e0fa/FLAGddddb75e5 [2022-12-14 10:51:36,614 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/data/135ce9efb/6797e54c787542089b8af1868c49e0fa [2022-12-14 10:51:36,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:51:36,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:51:36,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:51:36,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:51:36,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:51:36,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:51:36" (1/1) ... [2022-12-14 10:51:36,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f04fac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:36, skipping insertion in model container [2022-12-14 10:51:36,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:51:36" (1/1) ... [2022-12-14 10:51:36,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:51:36,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:51:36,743 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_a1fa8a3e-104d-493d-b512-cf7a9e851ace/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[1226,1239] [2022-12-14 10:51:36,759 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_a1fa8a3e-104d-493d-b512-cf7a9e851ace/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[2820,2833] [2022-12-14 10:51:36,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:51:36,767 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:51:36,776 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_a1fa8a3e-104d-493d-b512-cf7a9e851ace/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[1226,1239] [2022-12-14 10:51:36,782 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_a1fa8a3e-104d-493d-b512-cf7a9e851ace/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[2820,2833] [2022-12-14 10:51:36,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:51:36,794 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:51:36,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:36 WrapperNode [2022-12-14 10:51:36,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:51:36,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:51:36,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:51:36,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:51:36,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:36" (1/1) ... [2022-12-14 10:51:36,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:36" (1/1) ... [2022-12-14 10:51:36,828 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 86 [2022-12-14 10:51:36,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:51:36,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:51:36,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:51:36,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:51:36,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:36" (1/1) ... [2022-12-14 10:51:36,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:36" (1/1) ... [2022-12-14 10:51:36,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:36" (1/1) ... [2022-12-14 10:51:36,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:36" (1/1) ... [2022-12-14 10:51:36,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:36" (1/1) ... [2022-12-14 10:51:36,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:36" (1/1) ... [2022-12-14 10:51:36,849 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:36" (1/1) ... [2022-12-14 10:51:36,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:36" (1/1) ... [2022-12-14 10:51:36,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:51:36,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:51:36,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:51:36,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:51:36,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:36" (1/1) ... [2022-12-14 10:51:36,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:51:36,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:51:36,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:51:36,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:51:36,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:51:36,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:51:36,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:51:36,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:51:36,973 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:51:36,974 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:51:37,096 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:51:37,151 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:51:37,151 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 10:51:37,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:51:37 BoogieIcfgContainer [2022-12-14 10:51:37,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:51:37,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:51:37,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:51:37,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:51:37,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:51:36" (1/3) ... [2022-12-14 10:51:37,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@300e861a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:51:37, skipping insertion in model container [2022-12-14 10:51:37,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:36" (2/3) ... [2022-12-14 10:51:37,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@300e861a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:51:37, skipping insertion in model container [2022-12-14 10:51:37,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:51:37" (3/3) ... [2022-12-14 10:51:37,164 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_8.i [2022-12-14 10:51:37,184 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:51:37,184 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 10:51:37,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:51:37,229 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;@21e8afb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:51:37,229 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 10:51:37,232 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 10:51:37,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 10:51:37,236 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:51:37,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 10:51:37,237 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:51:37,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:51:37,241 INFO L85 PathProgramCache]: Analyzing trace with hash 3514600, now seen corresponding path program 1 times [2022-12-14 10:51:37,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:51:37,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953870709] [2022-12-14 10:51:37,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:51:37,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:51:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:51:37,353 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:51:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:51:37,383 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 10:51:37,384 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:51:37,385 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-14 10:51:37,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-14 10:51:37,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:51:37,391 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 10:51:37,394 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:51:37,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:51:37 BoogieIcfgContainer [2022-12-14 10:51:37,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:51:37,409 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:51:37,409 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:51:37,409 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:51:37,410 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:51:37" (3/4) ... [2022-12-14 10:51:37,413 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 10:51:37,413 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:51:37,414 INFO L158 Benchmark]: Toolchain (without parser) took 797.40ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 89.1MB in the beginning and 125.8MB in the end (delta: -36.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:51:37,415 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:51:37,415 INFO L158 Benchmark]: CACSL2BoogieTranslator took 177.17ms. Allocated memory is still 130.0MB. Free memory was 88.7MB in the beginning and 77.5MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 10:51:37,416 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.43ms. Allocated memory is still 130.0MB. Free memory was 77.5MB in the beginning and 75.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:51:37,417 INFO L158 Benchmark]: Boogie Preprocessor took 22.61ms. Allocated memory is still 130.0MB. Free memory was 75.6MB in the beginning and 74.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:51:37,417 INFO L158 Benchmark]: RCFGBuilder took 302.25ms. Allocated memory is still 130.0MB. Free memory was 74.4MB in the beginning and 59.2MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 10:51:37,418 INFO L158 Benchmark]: TraceAbstraction took 251.09ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 58.4MB in the beginning and 127.0MB in the end (delta: -68.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:51:37,418 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 157.3MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:51:37,421 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 177.17ms. Allocated memory is still 130.0MB. Free memory was 88.7MB in the beginning and 77.5MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.43ms. Allocated memory is still 130.0MB. Free memory was 77.5MB in the beginning and 75.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.61ms. Allocated memory is still 130.0MB. Free memory was 75.6MB in the beginning and 74.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 302.25ms. Allocated memory is still 130.0MB. Free memory was 74.4MB in the beginning and 59.2MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 251.09ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 58.4MB in the beginning and 127.0MB in the end (delta: -68.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 157.3MB. Free memory is still 126.6MB. 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 > -2.0f && IN < 2.0f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [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 10:51:37,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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 c79b5b9c620a89b5ccbc8a9238defbac5dd93f8a16c11c7717d83a12d6f10e40 --- 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 10:51:39,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:51:39,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:51:39,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:51:39,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:51:39,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:51:39,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:51:39,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:51:39,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:51:39,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:51:39,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:51:39,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:51:39,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:51:39,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:51:39,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:51:39,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:51:39,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:51:39,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:51:39,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:51:39,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:51:39,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:51:39,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:51:39,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:51:39,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:51:39,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:51:39,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:51:39,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:51:39,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:51:39,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:51:39,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:51:39,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:51:39,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:51:39,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:51:39,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:51:39,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:51:39,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:51:39,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:51:39,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:51:39,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:51:39,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:51:39,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:51:39,129 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 10:51:39,152 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:51:39,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:51:39,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:51:39,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:51:39,154 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:51:39,154 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:51:39,154 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:51:39,154 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:51:39,154 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:51:39,155 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:51:39,155 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:51:39,155 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:51:39,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:51:39,156 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:51:39,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:51:39,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:51:39,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:51:39,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:51:39,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:51:39,157 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 10:51:39,157 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 10:51:39,157 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 10:51:39,157 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:51:39,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:51:39,158 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:51:39,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:51:39,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:51:39,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 10:51:39,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:51:39,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:51:39,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:51:39,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:51:39,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:51:39,160 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 10:51:39,160 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 10:51:39,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:51:39,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:51:39,160 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 10:51:39,161 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_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c79b5b9c620a89b5ccbc8a9238defbac5dd93f8a16c11c7717d83a12d6f10e40 [2022-12-14 10:51:39,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:51:39,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:51:39,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:51:39,432 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:51:39,432 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:51:39,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/combinations/gcd_3+newton_1_8.i [2022-12-14 10:51:41,992 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:51:42,156 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:51:42,157 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i [2022-12-14 10:51:42,164 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/data/180399c1d/8fc4535613074bc99c34f032663f7288/FLAG14c252aa9 [2022-12-14 10:51:42,180 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/data/180399c1d/8fc4535613074bc99c34f032663f7288 [2022-12-14 10:51:42,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:51:42,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:51:42,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:51:42,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:51:42,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:51:42,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:51:42" (1/1) ... [2022-12-14 10:51:42,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@319aab3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:42, skipping insertion in model container [2022-12-14 10:51:42,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:51:42" (1/1) ... [2022-12-14 10:51:42,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:51:42,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:51:42,317 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_a1fa8a3e-104d-493d-b512-cf7a9e851ace/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[1226,1239] [2022-12-14 10:51:42,335 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_a1fa8a3e-104d-493d-b512-cf7a9e851ace/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[2820,2833] [2022-12-14 10:51:42,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:51:42,346 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:51:42,356 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_a1fa8a3e-104d-493d-b512-cf7a9e851ace/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[1226,1239] [2022-12-14 10:51:42,363 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_a1fa8a3e-104d-493d-b512-cf7a9e851ace/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[2820,2833] [2022-12-14 10:51:42,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:51:42,375 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:51:42,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:42 WrapperNode [2022-12-14 10:51:42,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:51:42,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:51:42,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:51:42,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:51:42,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:42" (1/1) ... [2022-12-14 10:51:42,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:42" (1/1) ... [2022-12-14 10:51:42,405 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 81 [2022-12-14 10:51:42,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:51:42,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:51:42,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:51:42,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:51:42,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:42" (1/1) ... [2022-12-14 10:51:42,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:42" (1/1) ... [2022-12-14 10:51:42,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:42" (1/1) ... [2022-12-14 10:51:42,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:42" (1/1) ... [2022-12-14 10:51:42,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:42" (1/1) ... [2022-12-14 10:51:42,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:42" (1/1) ... [2022-12-14 10:51:42,425 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:42" (1/1) ... [2022-12-14 10:51:42,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:42" (1/1) ... [2022-12-14 10:51:42,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:51:42,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:51:42,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:51:42,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:51:42,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:42" (1/1) ... [2022-12-14 10:51:42,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:51:42,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:51:42,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:51:42,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:51:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:51:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 10:51:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:51:42,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:51:42,563 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:51:42,565 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:51:49,010 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:51:49,016 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:51:49,017 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 10:51:49,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:51:49 BoogieIcfgContainer [2022-12-14 10:51:49,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:51:49,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:51:49,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:51:49,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:51:49,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:51:42" (1/3) ... [2022-12-14 10:51:49,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f55c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:51:49, skipping insertion in model container [2022-12-14 10:51:49,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:42" (2/3) ... [2022-12-14 10:51:49,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f55c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:51:49, skipping insertion in model container [2022-12-14 10:51:49,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:51:49" (3/3) ... [2022-12-14 10:51:49,026 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_8.i [2022-12-14 10:51:49,040 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:51:49,040 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 10:51:49,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:51:49,076 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;@1c7d2d82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:51:49,076 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 10:51:49,079 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 10:51:49,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 10:51:49,083 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:51:49,084 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:51:49,084 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:51:49,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:51:49,088 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-12-14 10:51:49,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:51:49,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423607771] [2022-12-14 10:51:49,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:51:49,097 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 10:51:49,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:51:49,098 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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 10:51:49,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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 10:51:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:51:50,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 10:51:50,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:51:50,200 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 10:51:50,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:51:50,200 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 10:51:50,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423607771] [2022-12-14 10:51:50,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423607771] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:51:50,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:51:50,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:51:50,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267327783] [2022-12-14 10:51:50,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:51:50,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:51:50,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 10:51:50,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:51:50,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:51:50,228 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 10:51:50,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:51:50,240 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-12-14 10:51:50,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:51:50,241 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 10:51:50,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:51:50,246 INFO L225 Difference]: With dead ends: 47 [2022-12-14 10:51:50,246 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 10:51:50,248 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 10:51:50,250 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 10:51:50,251 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 10:51:50,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 10:51:50,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-14 10:51:50,271 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 10:51:50,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-14 10:51:50,272 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-12-14 10:51:50,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:51:50,272 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-14 10:51:50,273 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 10:51:50,273 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-14 10:51:50,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 10:51:50,273 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:51:50,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:51:50,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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 10:51:50,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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 10:51:50,476 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:51:50,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:51:50,477 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-12-14 10:51:50,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:51:50,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426993445] [2022-12-14 10:51:50,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:51:50,480 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 10:51:50,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:51:50,484 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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 10:51:50,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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 10:51:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:51:54,546 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:51:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:51:58,384 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 10:51:58,385 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:51:58,386 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-14 10:51:58,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-14 10:51:58,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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 10:51:58,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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 10:51:58,598 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 10:51:58,608 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:51:58,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:51:58 BoogieIcfgContainer [2022-12-14 10:51:58,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:51:58,634 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:51:58,634 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:51:58,635 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:51:58,635 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:51:49" (3/4) ... [2022-12-14 10:51:58,636 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 10:51:58,659 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 10:51:58,659 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:51:58,659 INFO L158 Benchmark]: Toolchain (without parser) took 16475.57ms. Allocated memory is still 79.7MB. Free memory was 58.7MB in the beginning and 52.4MB in the end (delta: 6.3MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2022-12-14 10:51:58,660 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:51:58,660 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.36ms. Allocated memory is still 79.7MB. Free memory was 58.5MB in the beginning and 46.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 10:51:58,660 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.01ms. Allocated memory is still 79.7MB. Free memory was 46.4MB in the beginning and 44.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:51:58,661 INFO L158 Benchmark]: Boogie Preprocessor took 22.48ms. Allocated memory is still 79.7MB. Free memory was 44.5MB in the beginning and 42.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:51:58,661 INFO L158 Benchmark]: RCFGBuilder took 6589.64ms. Allocated memory is still 79.7MB. Free memory was 42.9MB in the beginning and 50.5MB in the end (delta: -7.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-12-14 10:51:58,661 INFO L158 Benchmark]: TraceAbstraction took 9612.23ms. Allocated memory is still 79.7MB. Free memory was 49.7MB in the beginning and 54.5MB in the end (delta: -4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:51:58,661 INFO L158 Benchmark]: Witness Printer took 24.57ms. Allocated memory is still 79.7MB. Free memory was 54.5MB in the beginning and 52.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:51:58,664 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.36ms. Allocated memory is still 79.7MB. Free memory was 58.5MB in the beginning and 46.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.01ms. Allocated memory is still 79.7MB. Free memory was 46.4MB in the beginning and 44.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.48ms. Allocated memory is still 79.7MB. Free memory was 44.5MB in the beginning and 42.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6589.64ms. Allocated memory is still 79.7MB. Free memory was 42.9MB in the beginning and 50.5MB in the end (delta: -7.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9612.23ms. Allocated memory is still 79.7MB. Free memory was 49.7MB in the beginning and 54.5MB in the end (delta: -4.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 24.57ms. Allocated memory is still 79.7MB. Free memory was 54.5MB in the beginning and 52.4MB 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 > -2.0f && IN < 2.0f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [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)=-1.0, \result=-0.841865062713623, x=-1.0] [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)=-1.0, \result=0.5430555939674377, x=-1.0] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-1.0, x=0.5502372980117798] [L102] reach_error() VAL [IN=-1.0, x=0.5502372980117798] - 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: 9.5s, 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, 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, 5.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 10:51:58,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1fa8a3e-104d-493d-b512-cf7a9e851ace/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