./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_tight.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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 18dbda2434c7285b61a25f8bfa64cf4514b67a5c7ac1b7a618b1696469e2b1b4 --- 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 08:27:43,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:27:43,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:27:43,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:27:43,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:27:43,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:27:43,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:27:43,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:27:43,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:27:43,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:27:43,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:27:43,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:27:43,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:27:43,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:27:43,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:27:43,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:27:43,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:27:43,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:27:43,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:27:43,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:27:43,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:27:43,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:27:43,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:27:43,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:27:43,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:27:43,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:27:43,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:27:43,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:27:43,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:27:43,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:27:43,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:27:43,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:27:43,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:27:43,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:27:43,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:27:43,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:27:43,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:27:43,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:27:43,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:27:43,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:27:43,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:27:43,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 08:27:43,625 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:27:43,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:27:43,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:27:43,625 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:27:43,626 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:27:43,626 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:27:43,626 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:27:43,626 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:27:43,626 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:27:43,626 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:27:43,627 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:27:43,627 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:27:43,627 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:27:43,627 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:27:43,627 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:27:43,627 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:27:43,628 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:27:43,628 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:27:43,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:27:43,628 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:27:43,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:27:43,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:27:43,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:27:43,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:27:43,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:27:43,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:27:43,629 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:27:43,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:27:43,630 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:27:43,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:27:43,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:27:43,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:27:43,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:27:43,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:27:43,631 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:27:43,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:27:43,631 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:27:43,631 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:27:43,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:27:43,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:27:43,632 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:27:43,632 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_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18dbda2434c7285b61a25f8bfa64cf4514b67a5c7ac1b7a618b1696469e2b1b4 [2022-12-14 08:27:43,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:27:43,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:27:43,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:27:43,808 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:27:43,808 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:27:43,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/float-benchs/zonotope_tight.c [2022-12-14 08:27:46,337 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:27:46,495 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:27:46,496 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/sv-benchmarks/c/float-benchs/zonotope_tight.c [2022-12-14 08:27:46,501 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/data/a47a569a1/2c669a125bfc4f0fa7ede32efdef9764/FLAG8afdb562e [2022-12-14 08:27:46,898 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/data/a47a569a1/2c669a125bfc4f0fa7ede32efdef9764 [2022-12-14 08:27:46,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:27:46,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:27:46,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:27:46,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:27:46,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:27:46,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:27:46" (1/1) ... [2022-12-14 08:27:46,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef93c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:46, skipping insertion in model container [2022-12-14 08:27:46,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:27:46" (1/1) ... [2022-12-14 08:27:46,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:27:46,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:27:47,024 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_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/sv-benchmarks/c/float-benchs/zonotope_tight.c[577,590] [2022-12-14 08:27:47,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:27:47,044 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:27:47,056 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_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/sv-benchmarks/c/float-benchs/zonotope_tight.c[577,590] [2022-12-14 08:27:47,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:27:47,072 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:27:47,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:47 WrapperNode [2022-12-14 08:27:47,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:27:47,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:27:47,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:27:47,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:27:47,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:47" (1/1) ... [2022-12-14 08:27:47,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:47" (1/1) ... [2022-12-14 08:27:47,104 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2022-12-14 08:27:47,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:27:47,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:27:47,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:27:47,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:27:47,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:47" (1/1) ... [2022-12-14 08:27:47,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:47" (1/1) ... [2022-12-14 08:27:47,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:47" (1/1) ... [2022-12-14 08:27:47,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:47" (1/1) ... [2022-12-14 08:27:47,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:47" (1/1) ... [2022-12-14 08:27:47,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:47" (1/1) ... [2022-12-14 08:27:47,122 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:47" (1/1) ... [2022-12-14 08:27:47,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:47" (1/1) ... [2022-12-14 08:27:47,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:27:47,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:27:47,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:27:47,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:27:47,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:47" (1/1) ... [2022-12-14 08:27:47,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:27:47,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:27:47,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:27:47,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:27:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:27:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:27:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:27:47,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:27:47,254 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:27:47,256 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:27:47,335 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:27:47,376 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:27:47,376 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:27:47,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:27:47 BoogieIcfgContainer [2022-12-14 08:27:47,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:27:47,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:27:47,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:27:47,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:27:47,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:27:46" (1/3) ... [2022-12-14 08:27:47,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d29d79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:27:47, skipping insertion in model container [2022-12-14 08:27:47,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:47" (2/3) ... [2022-12-14 08:27:47,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d29d79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:27:47, skipping insertion in model container [2022-12-14 08:27:47,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:27:47" (3/3) ... [2022-12-14 08:27:47,385 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight.c [2022-12-14 08:27:47,399 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:27:47,399 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:27:47,434 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:27:47,439 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;@68553e6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:27:47,439 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:27:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 08:27:47,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 08:27:47,447 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:27:47,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 08:27:47,447 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:27:47,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:27:47,452 INFO L85 PathProgramCache]: Analyzing trace with hash 67880, now seen corresponding path program 1 times [2022-12-14 08:27:47,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:27:47,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720170518] [2022-12-14 08:27:47,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:27:47,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:27:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:27:47,533 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:27:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:27:47,556 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:27:47,558 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:27:47,559 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 08:27:47,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:27:47,572 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 08:27:47,575 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:27:47,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:27:47 BoogieIcfgContainer [2022-12-14 08:27:47,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:27:47,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:27:47,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:27:47,594 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:27:47,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:27:47" (3/4) ... [2022-12-14 08:27:47,598 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:27:47,598 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:27:47,600 INFO L158 Benchmark]: Toolchain (without parser) took 698.56ms. Allocated memory is still 174.1MB. Free memory was 114.9MB in the beginning and 145.4MB in the end (delta: -30.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:27:47,600 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:27:47,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.30ms. Allocated memory is still 174.1MB. Free memory was 114.7MB in the beginning and 104.5MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 08:27:47,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.12ms. Allocated memory is still 174.1MB. Free memory was 104.5MB in the beginning and 103.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:27:47,602 INFO L158 Benchmark]: Boogie Preprocessor took 18.85ms. Allocated memory is still 174.1MB. Free memory was 103.0MB in the beginning and 102.2MB in the end (delta: 862.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:27:47,602 INFO L158 Benchmark]: RCFGBuilder took 253.58ms. Allocated memory is still 174.1MB. Free memory was 102.0MB in the beginning and 137.5MB in the end (delta: -35.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-12-14 08:27:47,603 INFO L158 Benchmark]: TraceAbstraction took 213.23ms. Allocated memory is still 174.1MB. Free memory was 136.8MB in the beginning and 145.4MB in the end (delta: -8.6MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2022-12-14 08:27:47,604 INFO L158 Benchmark]: Witness Printer took 4.66ms. Allocated memory is still 174.1MB. Free memory was 145.4MB in the beginning and 145.4MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:27:47,606 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 107.0MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.30ms. Allocated memory is still 174.1MB. Free memory was 114.7MB in the beginning and 104.5MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.12ms. Allocated memory is still 174.1MB. Free memory was 104.5MB in the beginning and 103.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.85ms. Allocated memory is still 174.1MB. Free memory was 103.0MB in the beginning and 102.2MB in the end (delta: 862.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 253.58ms. Allocated memory is still 174.1MB. Free memory was 102.0MB in the beginning and 137.5MB in the end (delta: -35.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * TraceAbstraction took 213.23ms. Allocated memory is still 174.1MB. Free memory was 136.8MB in the beginning and 145.4MB in the end (delta: -8.6MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * Witness Printer took 4.66ms. Allocated memory is still 174.1MB. Free memory was 145.4MB in the beginning and 145.4MB in the end (delta: 2.6kB). 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: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 21, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23. Possible FailurePath: [L18] double x,y; [L20] x = __VERIFIER_nondet_double() [L21] CALL assume_abort_if_not(x >= 0. && x <= 10.) [L12] COND FALSE !(!cond) [L21] RET assume_abort_if_not(x >= 0. && x <= 10.) [L23] y = x*x - x [L24] COND FALSE !(y >= 0) [L25] y = x*x + 2. [L27] CALL __VERIFIER_assert(y >= 0. && y <= 4.) [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L14] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, 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=6occurred 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, 3 NumberOfCodeBlocks, 3 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 08:27:47,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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 18dbda2434c7285b61a25f8bfa64cf4514b67a5c7ac1b7a618b1696469e2b1b4 --- 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 08:27:49,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:27:49,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:27:49,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:27:49,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:27:49,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:27:49,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:27:49,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:27:49,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:27:49,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:27:49,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:27:49,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:27:49,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:27:49,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:27:49,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:27:49,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:27:49,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:27:49,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:27:49,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:27:49,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:27:49,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:27:49,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:27:49,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:27:49,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:27:49,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:27:49,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:27:49,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:27:49,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:27:49,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:27:49,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:27:49,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:27:49,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:27:49,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:27:49,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:27:49,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:27:49,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:27:49,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:27:49,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:27:49,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:27:49,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:27:49,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:27:49,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 08:27:49,431 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:27:49,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:27:49,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:27:49,431 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:27:49,432 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:27:49,432 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:27:49,432 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:27:49,432 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:27:49,432 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:27:49,432 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:27:49,432 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:27:49,432 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:27:49,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:27:49,433 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:27:49,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:27:49,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:27:49,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:27:49,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:27:49,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:27:49,434 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 08:27:49,434 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 08:27:49,434 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 08:27:49,434 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:27:49,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:27:49,434 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:27:49,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:27:49,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:27:49,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 08:27:49,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:27:49,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:27:49,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:27:49,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:27:49,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:27:49,436 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 08:27:49,436 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 08:27:49,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:27:49,436 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:27:49,436 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 08:27:49,436 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_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18dbda2434c7285b61a25f8bfa64cf4514b67a5c7ac1b7a618b1696469e2b1b4 [2022-12-14 08:27:49,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:27:49,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:27:49,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:27:49,685 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:27:49,685 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:27:49,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/float-benchs/zonotope_tight.c [2022-12-14 08:27:52,236 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:27:52,386 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:27:52,387 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/sv-benchmarks/c/float-benchs/zonotope_tight.c [2022-12-14 08:27:52,393 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/data/b94efa21b/c6444284bbc44d3e8c1f17290ee274ad/FLAG87000d193 [2022-12-14 08:27:52,404 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/data/b94efa21b/c6444284bbc44d3e8c1f17290ee274ad [2022-12-14 08:27:52,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:27:52,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:27:52,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:27:52,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:27:52,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:27:52,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:27:52" (1/1) ... [2022-12-14 08:27:52,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@177e441e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:52, skipping insertion in model container [2022-12-14 08:27:52,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:27:52" (1/1) ... [2022-12-14 08:27:52,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:27:52,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:27:52,560 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_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/sv-benchmarks/c/float-benchs/zonotope_tight.c[577,590] [2022-12-14 08:27:52,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:27:52,580 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:27:52,591 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_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/sv-benchmarks/c/float-benchs/zonotope_tight.c[577,590] [2022-12-14 08:27:52,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:27:52,606 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:27:52,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:52 WrapperNode [2022-12-14 08:27:52,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:27:52,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:27:52,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:27:52,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:27:52,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:52" (1/1) ... [2022-12-14 08:27:52,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:52" (1/1) ... [2022-12-14 08:27:52,630 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 32 [2022-12-14 08:27:52,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:27:52,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:27:52,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:27:52,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:27:52,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:52" (1/1) ... [2022-12-14 08:27:52,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:52" (1/1) ... [2022-12-14 08:27:52,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:52" (1/1) ... [2022-12-14 08:27:52,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:52" (1/1) ... [2022-12-14 08:27:52,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:52" (1/1) ... [2022-12-14 08:27:52,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:52" (1/1) ... [2022-12-14 08:27:52,645 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:52" (1/1) ... [2022-12-14 08:27:52,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:52" (1/1) ... [2022-12-14 08:27:52,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:27:52,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:27:52,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:27:52,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:27:52,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:52" (1/1) ... [2022-12-14 08:27:52,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:27:52,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:27:52,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:27:52,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:27:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:27:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 08:27:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:27:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:27:52,762 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:27:52,763 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:27:57,175 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:27:57,180 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:27:57,180 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:27:57,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:27:57 BoogieIcfgContainer [2022-12-14 08:27:57,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:27:57,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:27:57,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:27:57,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:27:57,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:27:52" (1/3) ... [2022-12-14 08:27:57,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f79eb8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:27:57, skipping insertion in model container [2022-12-14 08:27:57,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:52" (2/3) ... [2022-12-14 08:27:57,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f79eb8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:27:57, skipping insertion in model container [2022-12-14 08:27:57,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:27:57" (3/3) ... [2022-12-14 08:27:57,188 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight.c [2022-12-14 08:27:57,207 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:27:57,207 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:27:57,238 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:27:57,242 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;@7041a71b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:27:57,243 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:27:57,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 08:27:57,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 08:27:57,250 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:27:57,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:27:57,250 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:27:57,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:27:57,254 INFO L85 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2022-12-14 08:27:57,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:27:57,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957268561] [2022-12-14 08:27:57,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:27:57,263 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 08:27:57,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:27:57,265 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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 08:27:57,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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 08:27:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:27:57,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 08:27:57,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:27:57,694 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 08:27:57,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:27:57,695 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:27:57,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957268561] [2022-12-14 08:27:57,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957268561] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:27:57,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:27:57,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:27:57,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25792713] [2022-12-14 08:27:57,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:27:57,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:27:57,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:27:57,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:27:57,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:27:57,721 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 08:27:57,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:27:57,731 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-14 08:27:57,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:27:57,733 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-12-14 08:27:57,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:27:57,738 INFO L225 Difference]: With dead ends: 23 [2022-12-14 08:27:57,738 INFO L226 Difference]: Without dead ends: 9 [2022-12-14 08:27:57,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 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 08:27:57,742 INFO L413 NwaCegarLoop]: 13 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, 13 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 08:27:57,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:27:57,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-12-14 08:27:57,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-12-14 08:27:57,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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 08:27:57,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 08:27:57,763 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2022-12-14 08:27:57,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:27:57,763 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 08:27:57,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 08:27:57,763 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 08:27:57,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 08:27:57,764 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:27:57,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:27:57,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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 08:27:57,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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 08:27:57,966 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:27:57,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:27:57,969 INFO L85 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2022-12-14 08:27:57,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:27:57,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1134650232] [2022-12-14 08:27:57,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:27:57,971 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 08:27:57,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:27:57,972 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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 08:27:57,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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 08:27:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:27:58,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 08:27:58,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:28:25,241 WARN L233 SmtUtils]: Spent 7.14s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:28:56,202 WARN L837 $PredicateComparison]: unable to prove that (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (or (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (not (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))))) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) (_ +zero 11 53))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) is different from false [2022-12-14 08:29:23,528 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (or (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (not (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))))) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) (_ +zero 11 53))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))))) is different from false [2022-12-14 08:29:25,603 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (or (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (not (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))))) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) (_ +zero 11 53))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))))) is different from true [2022-12-14 08:29:25,603 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 08:29:25,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:29:25,604 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:29:25,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1134650232] [2022-12-14 08:29:25,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1134650232] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:29:25,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:29:25,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 08:29:25,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766332471] [2022-12-14 08:29:25,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:29:25,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 08:29:25,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:29:25,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 08:29:25,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=16, Unknown=6, NotChecked=18, Total=56 [2022-12-14 08:29:25,606 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 08:29:27,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 08:29:29,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 08:29:31,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 08:29:36,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 08:29:38,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 08:29:41,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 08:29:43,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 08:29:45,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 08:29:47,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 08:29:49,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 08:29:49,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:29:49,995 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2022-12-14 08:29:49,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 08:29:49,996 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 8 [2022-12-14 08:29:49,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:29:49,997 INFO L225 Difference]: With dead ends: 13 [2022-12-14 08:29:49,997 INFO L226 Difference]: Without dead ends: 9 [2022-12-14 08:29:49,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.0s TimeCoverageRelationStatistics Valid=21, Invalid=22, Unknown=7, NotChecked=22, Total=72 [2022-12-14 08:29:49,998 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:29:49,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 10 Unknown, 14 Unchecked, 22.1s Time] [2022-12-14 08:29:49,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-12-14 08:29:50,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-12-14 08:29:50,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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 08:29:50,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-12-14 08:29:50,000 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-12-14 08:29:50,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:29:50,000 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-12-14 08:29:50,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 08:29:50,001 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-12-14 08:29:50,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 08:29:50,001 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:29:50,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:29:50,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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 08:29:50,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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 08:29:50,203 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:29:50,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:29:50,206 INFO L85 PathProgramCache]: Analyzing trace with hash 176701705, now seen corresponding path program 1 times [2022-12-14 08:29:50,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:29:50,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671706351] [2022-12-14 08:29:50,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:29:50,208 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 08:29:50,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:29:50,209 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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 08:29:50,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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 (4)] Waiting until timeout for monitored process [2022-12-14 08:29:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:29:50,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 08:29:50,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:30:19,532 WARN L233 SmtUtils]: Spent 10.88s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:30:38,245 WARN L837 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub c_currentRoundingMode .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (= |c_ULTIMATE.start_main_~y~0#1| (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-12-14 08:30:40,279 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub c_currentRoundingMode .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (= |c_ULTIMATE.start_main_~y~0#1| (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2022-12-14 08:31:38,746 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (or (and (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~x~0#1|) .cse1)) (fp.leq (fp.add roundNearestTiesToEven .cse0 .cse2) .cse3) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse4) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|) .cse2) (_ +zero 11 53))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse4) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse5 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse5 |ULTIMATE.start_main_~x~0#1|) .cse1)) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse4) (not (fp.leq (fp.add roundNearestTiesToEven .cse5 .cse2) .cse3)) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))))))) is different from false [2022-12-14 08:32:13,121 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))) (or (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|) .cse0) (_ +zero 11 53))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse2 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse2 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse1) (not (fp.leq (fp.add roundNearestTiesToEven .cse2 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))))) is different from false [2022-12-14 08:32:15,153 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))) (or (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|) .cse0) (_ +zero 11 53))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse2 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse2 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse1) (not (fp.leq (fp.add roundNearestTiesToEven .cse2 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))))) is different from true [2022-12-14 08:32:15,153 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 08:32:15,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:32:15,154 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:32:15,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671706351] [2022-12-14 08:32:15,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671706351] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:32:15,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:32:15,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 08:32:15,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999296902] [2022-12-14 08:32:15,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:32:15,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 08:32:15,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:32:15,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 08:32:15,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=17, Unknown=6, NotChecked=30, Total=72 [2022-12-14 08:32:15,156 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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 08:32:17,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 08:32:19,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 08:32:21,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 08:32:21,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:32:21,958 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2022-12-14 08:32:22,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 08:32:22,009 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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 8 [2022-12-14 08:32:22,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:32:22,009 INFO L225 Difference]: With dead ends: 9 [2022-12-14 08:32:22,009 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 08:32:22,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 27.6s TimeCoverageRelationStatistics Valid=24, Invalid=24, Unknown=6, NotChecked=36, Total=90 [2022-12-14 08:32:22,011 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-14 08:32:22,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 3 Unknown, 10 Unchecked, 6.3s Time] [2022-12-14 08:32:22,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 08:32:22,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 08:32:22,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 08:32:22,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 08:32:22,012 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-12-14 08:32:22,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:32:22,012 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 08:32:22,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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 08:32:22,012 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 08:32:22,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 08:32:22,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 08:32:22,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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 (4)] Ended with exit code 0 [2022-12-14 08:32:22,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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 08:32:22,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 08:32:22,241 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 08:32:22,241 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2022-12-14 08:32:22,241 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 08:32:22,242 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 16 29) the Hoare annotation is: true [2022-12-14 08:32:22,242 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-14 08:32:22,242 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-14 08:32:22,243 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 25) no Hoare annotation was computed. [2022-12-14 08:32:22,243 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2022-12-14 08:32:22,243 INFO L899 garLoopResultBuilder]: For program point L24-2(lines 24 25) no Hoare annotation was computed. [2022-12-14 08:32:22,244 INFO L899 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2022-12-14 08:32:22,244 INFO L899 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2022-12-14 08:32:22,244 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2022-12-14 08:32:22,245 INFO L902 garLoopResultBuilder]: At program point L14-3(line 14) the Hoare annotation is: true [2022-12-14 08:32:22,249 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 08:32:22,251 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:32:22,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:32:22 BoogieIcfgContainer [2022-12-14 08:32:22,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:32:22,255 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:32:22,255 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:32:22,255 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:32:22,256 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:27:57" (3/4) ... [2022-12-14 08:32:22,258 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 08:32:22,264 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-14 08:32:22,264 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 08:32:22,264 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 08:32:22,265 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 08:32:22,292 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 08:32:22,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:32:22,298 INFO L158 Benchmark]: Toolchain (without parser) took 269885.43ms. Allocated memory is still 77.6MB. Free memory was 41.5MB in the beginning and 55.5MB in the end (delta: -14.0MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2022-12-14 08:32:22,298 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 60.8MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:32:22,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 197.66ms. Allocated memory is still 77.6MB. Free memory was 41.3MB in the beginning and 50.6MB in the end (delta: -9.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 08:32:22,299 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.70ms. Allocated memory is still 77.6MB. Free memory was 50.6MB in the beginning and 49.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:32:22,299 INFO L158 Benchmark]: Boogie Preprocessor took 16.74ms. Allocated memory is still 77.6MB. Free memory was 49.0MB in the beginning and 47.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:32:22,299 INFO L158 Benchmark]: RCFGBuilder took 4533.24ms. Allocated memory is still 77.6MB. Free memory was 47.7MB in the beginning and 38.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 08:32:22,299 INFO L158 Benchmark]: TraceAbstraction took 265071.26ms. Allocated memory is still 77.6MB. Free memory was 37.5MB in the beginning and 30.8MB in the end (delta: 6.8MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2022-12-14 08:32:22,300 INFO L158 Benchmark]: Witness Printer took 37.34ms. Allocated memory is still 77.6MB. Free memory was 30.8MB in the beginning and 55.5MB in the end (delta: -24.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:32:22,301 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 60.8MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 197.66ms. Allocated memory is still 77.6MB. Free memory was 41.3MB in the beginning and 50.6MB in the end (delta: -9.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.70ms. Allocated memory is still 77.6MB. Free memory was 50.6MB in the beginning and 49.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.74ms. Allocated memory is still 77.6MB. Free memory was 49.0MB in the beginning and 47.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 4533.24ms. Allocated memory is still 77.6MB. Free memory was 47.7MB in the beginning and 38.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 265071.26ms. Allocated memory is still 77.6MB. Free memory was 37.5MB in the beginning and 30.8MB in the end (delta: 6.8MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * Witness Printer took 37.34ms. Allocated memory is still 77.6MB. Free memory was 30.8MB in the beginning and 55.5MB in the end (delta: -24.8MB). 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 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 265.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 31.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 28.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 28.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 24 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 52.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 20, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 231.8s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 6 QuantifiedInterpolants, 435 SizeOfPredicates, 14 NumberOfNonLiveVariables, 75 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 08:32:22,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f40ec2c-2a53-40c7-a087-33ddbcc68ebb/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 Result: TRUE