./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 14d46b3452c5154f69b317613614954cdc9bf43a13d2d7e7de582291df0d6a41 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:42:15,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:42:15,982 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 12:42:15,987 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:42:15,987 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:42:16,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:42:16,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:42:16,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:42:16,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:42:16,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:42:16,011 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:42:16,012 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:42:16,013 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:42:16,013 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:42:16,014 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:42:16,014 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:42:16,015 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:42:16,015 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:42:16,016 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:42:16,016 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:42:16,017 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:42:16,018 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:42:16,018 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:42:16,019 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:42:16,019 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:42:16,020 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:42:16,020 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:42:16,021 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:42:16,021 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:42:16,022 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:42:16,022 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:42:16,023 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:42:16,023 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:42:16,023 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:42:16,024 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:42:16,024 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:42:16,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:42:16,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:42:16,025 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:42:16,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:42:16,025 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:42:16,025 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:42:16,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:42:16,026 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:42:16,026 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:42:16,026 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:42:16,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:42:16,026 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14d46b3452c5154f69b317613614954cdc9bf43a13d2d7e7de582291df0d6a41 [2023-12-02 12:42:16,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:42:16,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:42:16,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:42:16,242 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:42:16,242 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:42:16,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-6.i [2023-12-02 12:42:18,969 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:42:19,139 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:42:19,140 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-6.i [2023-12-02 12:42:19,149 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/data/f403201be/6c24830e837d46499e17506e66066f1b/FLAGb3261e88c [2023-12-02 12:42:19,165 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/data/f403201be/6c24830e837d46499e17506e66066f1b [2023-12-02 12:42:19,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:42:19,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:42:19,170 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:42:19,171 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:42:19,175 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:42:19,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:42:19" (1/1) ... [2023-12-02 12:42:19,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5745ff3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:19, skipping insertion in model container [2023-12-02 12:42:19,177 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:42:19" (1/1) ... [2023-12-02 12:42:19,210 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:42:19,355 WARN L240 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_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-6.i[912,925] [2023-12-02 12:42:19,405 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:42:19,416 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:42:19,429 WARN L240 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_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-6.i[912,925] [2023-12-02 12:42:19,455 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:42:19,469 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:42:19,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:19 WrapperNode [2023-12-02 12:42:19,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:42:19,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:42:19,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:42:19,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:42:19,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:19" (1/1) ... [2023-12-02 12:42:19,486 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:19" (1/1) ... [2023-12-02 12:42:19,512 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 131 [2023-12-02 12:42:19,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:42:19,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:42:19,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:42:19,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:42:19,524 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:19" (1/1) ... [2023-12-02 12:42:19,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:19" (1/1) ... [2023-12-02 12:42:19,527 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:19" (1/1) ... [2023-12-02 12:42:19,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:19" (1/1) ... [2023-12-02 12:42:19,535 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:19" (1/1) ... [2023-12-02 12:42:19,539 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:19" (1/1) ... [2023-12-02 12:42:19,541 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:19" (1/1) ... [2023-12-02 12:42:19,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:19" (1/1) ... [2023-12-02 12:42:19,547 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:42:19,548 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:42:19,548 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:42:19,548 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:42:19,549 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:19" (1/1) ... [2023-12-02 12:42:19,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:42:19,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:42:19,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:42:19,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:42:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:42:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 12:42:19,616 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 12:42:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:42:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:42:19,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:42:19,689 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:42:19,691 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:42:19,949 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:42:20,096 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:42:20,096 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 12:42:20,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:42:20 BoogieIcfgContainer [2023-12-02 12:42:20,098 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:42:20,101 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:42:20,101 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:42:20,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:42:20,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:42:19" (1/3) ... [2023-12-02 12:42:20,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7590ead8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:42:20, skipping insertion in model container [2023-12-02 12:42:20,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:19" (2/3) ... [2023-12-02 12:42:20,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7590ead8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:42:20, skipping insertion in model container [2023-12-02 12:42:20,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:42:20" (3/3) ... [2023-12-02 12:42:20,106 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-6.i [2023-12-02 12:42:20,122 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:42:20,123 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:42:20,164 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:42:20,169 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=LoopHeads, 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;@4ada1c43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:42:20,170 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:42:20,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-02 12:42:20,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 12:42:20,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:42:20,183 INFO L195 NwaCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:42:20,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:42:20,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:42:20,190 INFO L85 PathProgramCache]: Analyzing trace with hash 56364015, now seen corresponding path program 1 times [2023-12-02 12:42:20,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:42:20,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561447505] [2023-12-02 12:42:20,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:42:20,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:42:20,343 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 12:42:20,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [352554299] [2023-12-02 12:42:20,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:42:20,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:42:20,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:42:20,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:42:20,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 12:42:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 12:42:20,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 12:42:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 12:42:20,626 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 12:42:20,629 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 12:42:20,630 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 12:42:20,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 12:42:20,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 12:42:20,839 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 12:42:20,844 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 12:42:20,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:42:20 BoogieIcfgContainer [2023-12-02 12:42:20,908 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 12:42:20,909 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 12:42:20,909 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 12:42:20,909 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 12:42:20,909 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:42:20" (3/4) ... [2023-12-02 12:42:20,911 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 12:42:20,912 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 12:42:20,913 INFO L158 Benchmark]: Toolchain (without parser) took 1743.84ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 106.0MB in the beginning and 107.9MB in the end (delta: -2.0MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2023-12-02 12:42:20,913 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory is still 56.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:42:20,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.23ms. Allocated memory is still 144.7MB. Free memory was 105.5MB in the beginning and 92.5MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 12:42:20,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.28ms. Allocated memory is still 144.7MB. Free memory was 92.5MB in the beginning and 90.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:42:20,915 INFO L158 Benchmark]: Boogie Preprocessor took 33.63ms. Allocated memory is still 144.7MB. Free memory was 90.0MB in the beginning and 88.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:42:20,916 INFO L158 Benchmark]: RCFGBuilder took 550.43ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 88.3MB in the beginning and 144.4MB in the end (delta: -56.1MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2023-12-02 12:42:20,916 INFO L158 Benchmark]: TraceAbstraction took 807.80ms. Allocated memory is still 174.1MB. Free memory was 144.4MB in the beginning and 108.9MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-12-02 12:42:20,917 INFO L158 Benchmark]: Witness Printer took 3.08ms. Allocated memory is still 174.1MB. Free memory was 108.9MB in the beginning and 107.9MB in the end (delta: 957.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:42:20,920 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory is still 56.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.23ms. Allocated memory is still 144.7MB. Free memory was 105.5MB in the beginning and 92.5MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.28ms. Allocated memory is still 144.7MB. Free memory was 92.5MB in the beginning and 90.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.63ms. Allocated memory is still 144.7MB. Free memory was 90.0MB in the beginning and 88.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 550.43ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 88.3MB in the beginning and 144.4MB in the end (delta: -56.1MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. * TraceAbstraction took 807.80ms. Allocated memory is still 174.1MB. Free memory was 144.4MB in the beginning and 108.9MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 3.08ms. Allocated memory is still 174.1MB. Free memory was 108.9MB in the beginning and 107.9MB in the end (delta: 957.2kB). 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: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 114, overapproximation of someBinaryArithmeticDOUBLEoperation at line 46, overapproximation of someBinaryDOUBLEComparisonOperation at line 62, overapproximation of someBinaryArithmeticFLOAToperation at line 58. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 100.25; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 8; [L25] unsigned char var_1_4 = 0; [L26] double var_1_5 = 1.9; [L27] double var_1_6 = 7.5; [L28] double var_1_7 = 64.25; [L29] signed long int var_1_8 = 2; [L30] signed long int var_1_9 = 1000000000; [L31] signed long int var_1_10 = 1000000000; [L32] signed long int var_1_11 = 1957998270; [L33] float var_1_12 = 50.25; [L34] float var_1_13 = 9.8; [L35] float var_1_14 = 25.5; [L36] float var_1_15 = 3.5; [L37] signed long int var_1_16 = -500; [L38] unsigned char var_1_17 = 1; [L39] unsigned char var_1_18 = 1; [L40] unsigned char var_1_19 = 0; [L118] isInitial = 1 [L119] FCALL initially() [L120] COND TRUE 1 [L121] FCALL updateLastVariables() [L122] CALL updateVariables() [L79] var_1_2 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_3=8, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_3=8, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L81] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=8, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=8, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L82] var_1_3 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L84] CALL assume_abort_if_not(var_1_3 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_3 <= 255) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L85] var_1_4 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L87] CALL assume_abort_if_not(var_1_4 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_4 <= 255) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L88] var_1_5 = __VERIFIER_nondet_double() [L89] CALL assume_abort_if_not((var_1_5 >= -461168.6018427382800e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 4611686.018427382800e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not((var_1_5 >= -461168.6018427382800e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 4611686.018427382800e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L90] var_1_6 = __VERIFIER_nondet_double() [L91] CALL assume_abort_if_not((var_1_6 >= -461168.6018427382800e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not((var_1_6 >= -461168.6018427382800e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L92] var_1_7 = __VERIFIER_nondet_double() [L93] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1000000000] [L94] var_1_9 = __VERIFIER_nondet_long() [L95] CALL assume_abort_if_not(var_1_9 >= 536870911) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_9 >= 536870911) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L96] CALL assume_abort_if_not(var_1_9 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_9 <= 1073741823) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L97] var_1_10 = __VERIFIER_nondet_long() [L98] CALL assume_abort_if_not(var_1_10 >= 536870911) VAL [\old(cond)=1, isInitial=1, var_1_10=1073741823, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_10 >= 536870911) VAL [isInitial=1, var_1_10=1073741823, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L99] CALL assume_abort_if_not(var_1_10 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=1073741823, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_10 <= 1073741823) VAL [isInitial=1, var_1_10=1073741823, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L100] var_1_11 = __VERIFIER_nondet_long() [L101] CALL assume_abort_if_not(var_1_11 >= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_11 >= 1073741823) VAL [isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L102] CALL assume_abort_if_not(var_1_11 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_11 <= 2147483646) VAL [isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L103] var_1_14 = __VERIFIER_nondet_float() [L104] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 2305843.009213691390e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 2305843.009213691390e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L105] var_1_15 = __VERIFIER_nondet_float() [L106] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 2305843.009213691390e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 2305843.009213691390e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L107] var_1_18 = __VERIFIER_nondet_uchar() [L108] CALL assume_abort_if_not(var_1_18 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_18 >= 1) VAL [isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L109] CALL assume_abort_if_not(var_1_18 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_18 <= 1) VAL [isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_8=2, var_1_9=1073741823] [L122] RET updateVariables() [L123] CALL step() [L44] COND FALSE !(\read(var_1_2)) [L51] var_1_1 = var_1_5 [L53] var_1_8 = (((var_1_9 + var_1_10) - var_1_3) - (var_1_11 - ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) [L54] COND TRUE ((((var_1_3) < (var_1_9)) ? (var_1_3) : (var_1_9))) >= (var_1_4 - var_1_11) [L55] var_1_12 = var_1_7 [L57] COND FALSE !(var_1_8 < var_1_11) [L60] var_1_13 = (var_1_15 + ((((var_1_14) < (var_1_5)) ? (var_1_14) : (var_1_5)))) [L62] COND TRUE (((((- var_1_15)) > ((var_1_13 * var_1_6))) ? ((- var_1_15)) : ((var_1_13 * var_1_6)))) < var_1_5 [L63] COND FALSE !(var_1_11 != ((((var_1_8) < (var_1_10)) ? (var_1_8) : (var_1_10)))) [L69] var_1_17 = (((var_1_3 * var_1_9) >= ((((var_1_16) > (var_1_8)) ? (var_1_16) : (var_1_8)))) || var_1_18) [L70] COND TRUE \read(var_1_17) [L71] COND FALSE !(var_1_7 > (((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))) * (var_1_13 * 63.375))) [L123] RET step() [L124] CALL, EXPR property() [L114-L115] return ((((((var_1_2 ? ((var_1_3 >= var_1_4) ? (var_1_1 == ((double) (var_1_5 + var_1_6))) : (var_1_1 == ((double) (4.125 - var_1_7)))) : (var_1_1 == ((double) var_1_5))) && (var_1_8 == ((signed long int) (((var_1_9 + var_1_10) - var_1_3) - (var_1_11 - ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4)))))))) && ((((((var_1_3) < (var_1_9)) ? (var_1_3) : (var_1_9))) >= (var_1_4 - var_1_11)) ? (var_1_12 == ((float) var_1_7)) : 1)) && ((var_1_8 < var_1_11) ? (var_1_13 == ((float) ((7.3868261718112563E18f - (var_1_14 + var_1_15)) - 5.4f))) : (var_1_13 == ((float) (var_1_15 + ((((var_1_14) < (var_1_5)) ? (var_1_14) : (var_1_5)))))))) && (((((((- var_1_15)) > ((var_1_13 * var_1_6))) ? ((- var_1_15)) : ((var_1_13 * var_1_6)))) < var_1_5) ? ((var_1_11 != ((((var_1_8) < (var_1_10)) ? (var_1_8) : (var_1_10)))) ? (var_1_2 ? (var_1_16 == ((signed long int) var_1_3)) : 1) : 1) : 1)) && (var_1_17 == ((unsigned char) (((var_1_3 * var_1_9) >= ((((var_1_16) > (var_1_8)) ? (var_1_16) : (var_1_8)))) || var_1_18)))) && (var_1_17 ? ((var_1_7 > (((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))) * (var_1_13 * 63.375))) ? (var_1_19 == ((unsigned char) var_1_18)) : 1) : (var_1_19 == ((unsigned char) var_1_18))) ; [L124] RET, EXPR property() [L124] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=3, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=3, var_1_7=2, var_1_8=1073741823, var_1_9=1073741823] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=3, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=3, var_1_7=2, var_1_8=1073741823, var_1_9=1073741823] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 19, 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=40occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 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 [2023-12-02 12:42:20,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/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 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_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 14d46b3452c5154f69b317613614954cdc9bf43a13d2d7e7de582291df0d6a41 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:42:22,877 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:42:22,955 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 12:42:22,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:42:22,962 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:42:22,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:42:22,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:42:22,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:42:22,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:42:22,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:42:22,993 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:42:22,994 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:42:22,994 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:42:22,995 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:42:22,995 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:42:22,996 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:42:22,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:42:22,997 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:42:22,998 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:42:22,998 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:42:22,999 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:42:23,000 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:42:23,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:42:23,001 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:42:23,001 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 12:42:23,002 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 12:42:23,002 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 12:42:23,002 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:42:23,003 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:42:23,003 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:42:23,004 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:42:23,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 12:42:23,004 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:42:23,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:42:23,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:42:23,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:42:23,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:42:23,006 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:42:23,006 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 12:42:23,006 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 12:42:23,006 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:42:23,007 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:42:23,007 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:42:23,007 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:42:23,007 INFO L153 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_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14d46b3452c5154f69b317613614954cdc9bf43a13d2d7e7de582291df0d6a41 [2023-12-02 12:42:23,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:42:23,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:42:23,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:42:23,312 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:42:23,313 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:42:23,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-6.i [2023-12-02 12:42:26,077 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:42:26,288 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:42:26,289 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-6.i [2023-12-02 12:42:26,299 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/data/ed997040b/5e9d4ba369f8402b891cc3285b4e45c9/FLAG6cfd4077b [2023-12-02 12:42:26,314 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/data/ed997040b/5e9d4ba369f8402b891cc3285b4e45c9 [2023-12-02 12:42:26,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:42:26,319 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:42:26,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:42:26,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:42:26,325 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:42:26,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:42:26" (1/1) ... [2023-12-02 12:42:26,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e416971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:26, skipping insertion in model container [2023-12-02 12:42:26,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:42:26" (1/1) ... [2023-12-02 12:42:26,363 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:42:26,516 WARN L240 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_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-6.i[912,925] [2023-12-02 12:42:26,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:42:26,582 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:42:26,596 WARN L240 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_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-6.i[912,925] [2023-12-02 12:42:26,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:42:26,641 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:42:26,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:26 WrapperNode [2023-12-02 12:42:26,641 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:42:26,643 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:42:26,643 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:42:26,643 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:42:26,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:26" (1/1) ... [2023-12-02 12:42:26,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:26" (1/1) ... [2023-12-02 12:42:26,692 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 128 [2023-12-02 12:42:26,692 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:42:26,693 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:42:26,693 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:42:26,693 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:42:26,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:26" (1/1) ... [2023-12-02 12:42:26,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:26" (1/1) ... [2023-12-02 12:42:26,707 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:26" (1/1) ... [2023-12-02 12:42:26,708 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:26" (1/1) ... [2023-12-02 12:42:26,718 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:26" (1/1) ... [2023-12-02 12:42:26,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:26" (1/1) ... [2023-12-02 12:42:26,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:26" (1/1) ... [2023-12-02 12:42:26,727 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:26" (1/1) ... [2023-12-02 12:42:26,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:42:26,733 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:42:26,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:42:26,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:42:26,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:26" (1/1) ... [2023-12-02 12:42:26,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:42:26,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:42:26,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:42:26,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:42:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:42:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 12:42:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 12:42:26,801 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 12:42:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:42:26,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:42:26,889 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:42:26,892 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:42:40,284 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:42:40,332 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:42:40,332 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 12:42:40,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:42:40 BoogieIcfgContainer [2023-12-02 12:42:40,333 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:42:40,336 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:42:40,336 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:42:40,339 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:42:40,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:42:26" (1/3) ... [2023-12-02 12:42:40,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4940e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:42:40, skipping insertion in model container [2023-12-02 12:42:40,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:26" (2/3) ... [2023-12-02 12:42:40,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4940e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:42:40, skipping insertion in model container [2023-12-02 12:42:40,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:42:40" (3/3) ... [2023-12-02 12:42:40,342 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-6.i [2023-12-02 12:42:40,361 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:42:40,362 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:42:40,406 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:42:40,412 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=LoopHeads, 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;@5ccd8da1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:42:40,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:42:40,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 34 states have internal predecessors, (47), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-02 12:42:40,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-02 12:42:40,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:42:40,429 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:42:40,430 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:42:40,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:42:40,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1732239983, now seen corresponding path program 1 times [2023-12-02 12:42:40,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 12:42:40,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208203426] [2023-12-02 12:42:40,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:42:40,447 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 [2023-12-02 12:42:40,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 12:42:40,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 12:42:40,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 12:42:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:42:41,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 12:42:41,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:42:41,395 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2023-12-02 12:42:41,395 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 12:42:41,396 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 12:42:41,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208203426] [2023-12-02 12:42:41,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208203426] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:42:41,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:42:41,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 12:42:41,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637004526] [2023-12-02 12:42:41,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:42:41,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 12:42:41,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 12:42:41,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 12:42:41,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 12:42:41,436 INFO L87 Difference]: Start difference. First operand has 55 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 34 states have internal predecessors, (47), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 12:42:43,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:42:43,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:42:43,973 INFO L93 Difference]: Finished difference Result 107 states and 187 transitions. [2023-12-02 12:42:44,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 12:42:44,086 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 119 [2023-12-02 12:42:44,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:42:44,093 INFO L225 Difference]: With dead ends: 107 [2023-12-02 12:42:44,093 INFO L226 Difference]: Without dead ends: 53 [2023-12-02 12:42:44,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 12:42:44,099 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-02 12:42:44,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2023-12-02 12:42:44,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-12-02 12:42:44,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-12-02 12:42:44,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 32 states have (on average 1.3125) internal successors, (42), 32 states have internal predecessors, (42), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-02 12:42:44,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 80 transitions. [2023-12-02 12:42:44,140 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 80 transitions. Word has length 119 [2023-12-02 12:42:44,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:42:44,140 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 80 transitions. [2023-12-02 12:42:44,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 12:42:44,141 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 80 transitions. [2023-12-02 12:42:44,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-02 12:42:44,144 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:42:44,145 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:42:44,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 12:42:44,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 12:42:44,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:42:44,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:42:44,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1114000365, now seen corresponding path program 1 times [2023-12-02 12:42:44,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 12:42:44,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [875715866] [2023-12-02 12:42:44,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:42:44,348 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 [2023-12-02 12:42:44,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 12:42:44,349 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 12:42:44,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 12:42:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:42:45,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 12:42:45,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:42:45,794 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 120 proven. 3 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-12-02 12:42:45,795 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:42:46,472 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 51 proven. 3 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-12-02 12:42:46,472 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 12:42:46,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [875715866] [2023-12-02 12:42:46,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [875715866] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:42:46,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [257344236] [2023-12-02 12:42:46,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:42:46,474 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 12:42:46,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 12:42:46,505 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 12:42:46,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 12:42:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:42:48,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 12:42:48,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:42:48,561 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 120 proven. 3 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-12-02 12:42:48,561 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:42:49,021 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 51 proven. 3 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-12-02 12:42:49,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [257344236] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:42:49,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945929313] [2023-12-02 12:42:49,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:42:49,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:42:49,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:42:49,031 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:42:49,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 12:42:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:42:49,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 12:42:49,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:42:50,521 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-12-02 12:42:50,521 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 12:42:50,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945929313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:42:50,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2023-12-02 12:42:50,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6, 6, 6, 6] total 12 [2023-12-02 12:42:50,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271177744] [2023-12-02 12:42:50,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:42:50,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 12:42:50,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 12:42:50,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 12:42:50,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-02 12:42:50,527 INFO L87 Difference]: Start difference. First operand 53 states and 80 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 12:42:54,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:42:56,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:42:58,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:43:00,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:43:02,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:43:04,800 WARN L539 Checker$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 [] [2023-12-02 12:43:06,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:43:08,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:43:10,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:43:12,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:43:12,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:43:12,823 INFO L93 Difference]: Finished difference Result 115 states and 167 transitions. [2023-12-02 12:43:12,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 12:43:12,947 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 119 [2023-12-02 12:43:12,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:43:12,949 INFO L225 Difference]: With dead ends: 115 [2023-12-02 12:43:12,949 INFO L226 Difference]: Without dead ends: 63 [2023-12-02 12:43:12,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 579 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2023-12-02 12:43:12,952 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 91 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 77 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2023-12-02 12:43:12,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 154 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 154 Invalid, 10 Unknown, 0 Unchecked, 21.7s Time] [2023-12-02 12:43:12,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-12-02 12:43:12,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2023-12-02 12:43:12,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 38 states have (on average 1.236842105263158) internal successors, (47), 38 states have internal predecessors, (47), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-02 12:43:12,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 85 transitions. [2023-12-02 12:43:12,969 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 85 transitions. Word has length 119 [2023-12-02 12:43:12,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:43:12,970 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 85 transitions. [2023-12-02 12:43:12,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 12:43:12,971 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 85 transitions. [2023-12-02 12:43:12,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-02 12:43:12,973 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:43:12,973 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:43:12,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 12:43:13,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 12:43:13,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 12:43:13,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 12:43:13,575 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:43:13,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:43:13,575 INFO L85 PathProgramCache]: Analyzing trace with hash 164624556, now seen corresponding path program 1 times [2023-12-02 12:43:13,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 12:43:13,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243643189] [2023-12-02 12:43:13,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:43:13,576 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 [2023-12-02 12:43:13,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 12:43:13,577 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 12:43:13,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/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 (6)] Waiting until timeout for monitored process [2023-12-02 12:43:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:43:14,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 12:43:14,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:43:15,843 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 437 proven. 39 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2023-12-02 12:43:15,843 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:43:16,499 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 12:43:16,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243643189] [2023-12-02 12:43:16,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243643189] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:43:16,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [492211495] [2023-12-02 12:43:16,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:43:16,500 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 12:43:16,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 12:43:16,502 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 12:43:16,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 12:43:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:43:18,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 12:43:18,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:43:20,345 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 428 proven. 57 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-12-02 12:43:20,345 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:43:20,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [492211495] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 12:43:20,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393431950] [2023-12-02 12:43:20,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:43:20,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:43:20,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:43:20,753 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:43:20,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_226f34ad-f448-4ee1-8230-bfdf5f1bd8cb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 12:43:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:43:21,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 12:43:21,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:44:25,569 WARN L293 SmtUtils]: Spent 7.39s on a formula simplification that was a NOOP. DAG size: 70 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:44:55,130 WARN L293 SmtUtils]: Spent 6.85s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:46:30,805 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ zero_extend 24) c_~var_1_4~0)) (.cse2 ((_ zero_extend 24) c_~var_1_3~0))) (let ((.cse5 (bvslt .cse2 c_~var_1_9~0)) (.cse4 (bvadd .cse3 (bvneg c_~var_1_11~0)))) (and (let ((.cse1 (fp.lt c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse0 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_13~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 507.0 8.0))))) (or (and (fp.gt c_~var_1_7~0 (fp.mul c_currentRoundingMode (fp.neg c_~var_1_5~0) .cse0)) .cse1) (and (not .cse1) (fp.gt c_~var_1_7~0 (fp.mul c_currentRoundingMode c_~var_1_5~0 .cse0))))) (= c_~var_1_19~0 c_~var_1_18~0) (= c_~var_1_8~0 (bvadd c_~var_1_10~0 (bvneg .cse2) c_~var_1_9~0 (bvneg (bvadd c_~var_1_11~0 (bvneg .cse3))))) (or (not (bvsge .cse2 .cse4)) (not .cse5)) (or .cse5 (not (bvsge c_~var_1_9~0 .cse4))) (= (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 7386826171811256300.0) (fp.add c_currentRoundingMode c_~var_1_14~0 c_~var_1_15~0)) ((_ to_fp 8 24) c_currentRoundingMode (/ 27.0 5.0))) c_~var_1_13~0) (= (_ bv0 8) c_~var_1_2~0) (bvslt c_~var_1_8~0 c_~var_1_11~0) (= c_~var_1_5~0 c_~var_1_1~0) (let ((.cse7 (bvsgt c_~var_1_16~0 c_~var_1_8~0)) (.cse9 (bvmul c_~var_1_9~0 .cse2)) (.cse8 (not (= c_~var_1_18~0 (_ bv0 8)))) (.cse6 (= (_ bv1 8) c_~var_1_17~0))) (or (and .cse6 .cse7 (or .cse8 (bvsge .cse9 c_~var_1_16~0))) (and (not .cse7) (or (bvsge .cse9 c_~var_1_8~0) .cse8) .cse6)))))) is different from false [2023-12-02 12:46:32,863 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ zero_extend 24) c_~var_1_4~0)) (.cse2 ((_ zero_extend 24) c_~var_1_3~0))) (let ((.cse5 (bvslt .cse2 c_~var_1_9~0)) (.cse4 (bvadd .cse3 (bvneg c_~var_1_11~0)))) (and (let ((.cse1 (fp.lt c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse0 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_13~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 507.0 8.0))))) (or (and (fp.gt c_~var_1_7~0 (fp.mul c_currentRoundingMode (fp.neg c_~var_1_5~0) .cse0)) .cse1) (and (not .cse1) (fp.gt c_~var_1_7~0 (fp.mul c_currentRoundingMode c_~var_1_5~0 .cse0))))) (= c_~var_1_19~0 c_~var_1_18~0) (= c_~var_1_8~0 (bvadd c_~var_1_10~0 (bvneg .cse2) c_~var_1_9~0 (bvneg (bvadd c_~var_1_11~0 (bvneg .cse3))))) (or (not (bvsge .cse2 .cse4)) (not .cse5)) (or .cse5 (not (bvsge c_~var_1_9~0 .cse4))) (= (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 7386826171811256300.0) (fp.add c_currentRoundingMode c_~var_1_14~0 c_~var_1_15~0)) ((_ to_fp 8 24) c_currentRoundingMode (/ 27.0 5.0))) c_~var_1_13~0) (= (_ bv0 8) c_~var_1_2~0) (bvslt c_~var_1_8~0 c_~var_1_11~0) (= c_~var_1_5~0 c_~var_1_1~0) (let ((.cse7 (bvsgt c_~var_1_16~0 c_~var_1_8~0)) (.cse9 (bvmul c_~var_1_9~0 .cse2)) (.cse8 (not (= c_~var_1_18~0 (_ bv0 8)))) (.cse6 (= (_ bv1 8) c_~var_1_17~0))) (or (and .cse6 .cse7 (or .cse8 (bvsge .cse9 c_~var_1_16~0))) (and (not .cse7) (or (bvsge .cse9 c_~var_1_8~0) .cse8) .cse6)))))) is different from true