./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-25.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_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/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_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/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_238bfb26-7076-42eb-a6a6-dadbb657b449/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 4ec0cc32831f45c9c4bdd4e08577f8de21576bedb3983ee0d68f8f49a302561c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:40:13,856 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:40:13,921 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 16:40:13,925 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:40:13,926 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:40:13,950 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:40:13,951 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:40:13,952 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:40:13,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:40:13,953 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:40:13,953 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:40:13,954 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:40:13,954 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:40:13,955 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:40:13,955 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:40:13,956 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:40:13,956 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:40:13,957 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:40:13,957 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:40:13,958 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:40:13,958 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:40:13,959 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:40:13,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:40:13,960 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:40:13,961 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:40:13,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:40:13,962 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:40:13,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:40:13,962 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:40:13,963 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:40:13,963 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:40:13,964 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:40:13,964 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:40:13,964 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:40:13,964 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:40:13,965 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:40:13,965 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:40:13,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:40:13,965 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:40:13,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:40:13,966 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:40:13,966 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:40:13,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:40:13,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:40:13,967 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:40:13,967 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:40:13,967 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:40:13,967 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_238bfb26-7076-42eb-a6a6-dadbb657b449/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ec0cc32831f45c9c4bdd4e08577f8de21576bedb3983ee0d68f8f49a302561c [2023-12-02 16:40:14,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:40:14,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:40:14,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:40:14,212 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:40:14,212 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:40:14,213 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-25.i [2023-12-02 16:40:16,967 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:40:17,157 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:40:17,158 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-25.i [2023-12-02 16:40:17,167 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/data/f3cde5a19/0ec7c97167fb491a99865fbc0898ef77/FLAG0eadbac7b [2023-12-02 16:40:17,182 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/data/f3cde5a19/0ec7c97167fb491a99865fbc0898ef77 [2023-12-02 16:40:17,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:40:17,186 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:40:17,187 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:40:17,188 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:40:17,192 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:40:17,192 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:40:17" (1/1) ... [2023-12-02 16:40:17,193 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63625f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:17, skipping insertion in model container [2023-12-02 16:40:17,193 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:40:17" (1/1) ... [2023-12-02 16:40:17,217 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:40:17,339 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_238bfb26-7076-42eb-a6a6-dadbb657b449/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-25.i[917,930] [2023-12-02 16:40:17,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:40:17,391 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:40:17,401 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_238bfb26-7076-42eb-a6a6-dadbb657b449/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-25.i[917,930] [2023-12-02 16:40:17,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:40:17,443 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:40:17,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:17 WrapperNode [2023-12-02 16:40:17,443 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:40:17,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:40:17,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:40:17,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:40:17,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:17" (1/1) ... [2023-12-02 16:40:17,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:17" (1/1) ... [2023-12-02 16:40:17,490 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2023-12-02 16:40:17,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:40:17,491 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:40:17,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:40:17,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:40:17,501 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:17" (1/1) ... [2023-12-02 16:40:17,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:17" (1/1) ... [2023-12-02 16:40:17,504 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:17" (1/1) ... [2023-12-02 16:40:17,504 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:17" (1/1) ... [2023-12-02 16:40:17,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:17" (1/1) ... [2023-12-02 16:40:17,514 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:17" (1/1) ... [2023-12-02 16:40:17,517 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:17" (1/1) ... [2023-12-02 16:40:17,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:17" (1/1) ... [2023-12-02 16:40:17,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:40:17,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:40:17,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:40:17,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:40:17,524 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:17" (1/1) ... [2023-12-02 16:40:17,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:40:17,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:40:17,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:40:17,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:40:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:40:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:40:17,593 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:40:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:40:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:40:17,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:40:17,661 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:40:17,663 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:40:17,890 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:40:18,008 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:40:18,008 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:40:18,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:40:18 BoogieIcfgContainer [2023-12-02 16:40:18,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:40:18,012 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:40:18,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:40:18,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:40:18,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:40:17" (1/3) ... [2023-12-02 16:40:18,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d493eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:40:18, skipping insertion in model container [2023-12-02 16:40:18,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:17" (2/3) ... [2023-12-02 16:40:18,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d493eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:40:18, skipping insertion in model container [2023-12-02 16:40:18,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:40:18" (3/3) ... [2023-12-02 16:40:18,018 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-25.i [2023-12-02 16:40:18,037 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:40:18,037 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:40:18,084 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:40:18,091 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;@56cfc4c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:40:18,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:40:18,095 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 16:40:18,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 16:40:18,104 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:40:18,104 INFO L195 NwaCegarLoop]: trace histogram [18, 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 16:40:18,105 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:40:18,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:40:18,109 INFO L85 PathProgramCache]: Analyzing trace with hash -106134134, now seen corresponding path program 1 times [2023-12-02 16:40:18,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:40:18,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679775379] [2023-12-02 16:40:18,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:40:18,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:40:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:40:18,349 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:40:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:40:18,507 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 16:40:18,509 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:40:18,510 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 16:40:18,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:40:18,517 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 16:40:18,521 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:40:18,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:40:18 BoogieIcfgContainer [2023-12-02 16:40:18,574 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:40:18,575 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:40:18,575 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:40:18,575 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:40:18,576 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:40:18" (3/4) ... [2023-12-02 16:40:18,578 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 16:40:18,579 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:40:18,581 INFO L158 Benchmark]: Toolchain (without parser) took 1394.45ms. Allocated memory is still 140.5MB. Free memory was 104.3MB in the beginning and 61.1MB in the end (delta: 43.2MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2023-12-02 16:40:18,581 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:40:18,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.37ms. Allocated memory is still 140.5MB. Free memory was 103.9MB in the beginning and 91.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 16:40:18,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.02ms. Allocated memory is still 140.5MB. Free memory was 91.4MB in the beginning and 89.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:40:18,583 INFO L158 Benchmark]: Boogie Preprocessor took 31.13ms. Allocated memory is still 140.5MB. Free memory was 89.3MB in the beginning and 87.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:40:18,583 INFO L158 Benchmark]: RCFGBuilder took 486.81ms. Allocated memory is still 140.5MB. Free memory was 87.5MB in the beginning and 98.8MB in the end (delta: -11.3MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2023-12-02 16:40:18,584 INFO L158 Benchmark]: TraceAbstraction took 562.22ms. Allocated memory is still 140.5MB. Free memory was 98.0MB in the beginning and 61.9MB in the end (delta: 36.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-12-02 16:40:18,585 INFO L158 Benchmark]: Witness Printer took 4.39ms. Allocated memory is still 140.5MB. Free memory was 61.9MB in the beginning and 61.1MB in the end (delta: 830.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:40:18,588 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.37ms. Allocated memory is still 140.5MB. Free memory was 103.9MB in the beginning and 91.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.02ms. Allocated memory is still 140.5MB. Free memory was 91.4MB in the beginning and 89.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.13ms. Allocated memory is still 140.5MB. Free memory was 89.3MB in the beginning and 87.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 486.81ms. Allocated memory is still 140.5MB. Free memory was 87.5MB in the beginning and 98.8MB in the end (delta: -11.3MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * TraceAbstraction took 562.22ms. Allocated memory is still 140.5MB. Free memory was 98.0MB in the beginning and 61.9MB in the end (delta: 36.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.39ms. Allocated memory is still 140.5MB. Free memory was 61.9MB in the beginning and 61.1MB in the end (delta: 830.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 39. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 256; [L23] unsigned char var_1_2 = 0; [L24] unsigned short int var_1_3 = 10; [L25] unsigned short int var_1_4 = 500; [L26] unsigned long int var_1_5 = 0; [L27] unsigned long int var_1_6 = 1509114200; [L28] unsigned long int var_1_7 = 10; [L29] float var_1_8 = 128.9; [L30] float var_1_9 = 63.363; [L31] float var_1_10 = 4.575; [L32] float var_1_11 = 25.5; [L33] unsigned char var_1_12 = 1; [L34] unsigned char var_1_13 = 0; [L35] unsigned char var_1_14 = 1; [L107] isInitial = 1 [L108] FCALL initially() [L109] COND TRUE 1 [L110] FCALL updateLastVariables() [L111] CALL updateVariables() [L71] var_1_2 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_3=10, var_1_4=500, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_3=10, var_1_4=500, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L73] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_3=10, var_1_4=500, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_3=10, var_1_4=500, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L74] var_1_3 = __VERIFIER_nondet_ushort() [L75] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_4=500, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_4=500, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L76] CALL assume_abort_if_not(var_1_3 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_4=500, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_3 <= 65535) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_4=500, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L77] var_1_4 = __VERIFIER_nondet_ushort() [L78] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L79] CALL assume_abort_if_not(var_1_4 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_4 <= 65535) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L80] var_1_5 = __VERIFIER_nondet_ulong() [L81] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L82] CALL assume_abort_if_not(var_1_5 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_5 <= 1073741823) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L83] var_1_6 = __VERIFIER_nondet_ulong() [L84] CALL assume_abort_if_not(var_1_6 >= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_6 >= 1073741823) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L85] CALL assume_abort_if_not(var_1_6 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_6 <= 2147483647) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L86] var_1_7 = __VERIFIER_nondet_ulong() [L87] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_8=1289/10, var_1_9=63363/1000] [L88] CALL assume_abort_if_not(var_1_7 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=256, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_7 <= 1073741823) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=256, var_1_8=1289/10, var_1_9=63363/1000] [L89] var_1_9 = __VERIFIER_nondet_float() [L90] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=256, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=256, var_1_8=1289/10] [L91] var_1_10 = __VERIFIER_nondet_float() [L92] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=256, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=256, var_1_8=1289/10] [L93] var_1_13 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=51/2, var_1_12=1, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=256, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_11=51/2, var_1_12=1, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=256, var_1_8=1289/10] [L95] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=256, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=256, var_1_8=1289/10] [L96] var_1_14 = __VERIFIER_nondet_uchar() [L97] CALL assume_abort_if_not(var_1_14 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=256, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_14 >= 1) VAL [isInitial=1, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=256, var_1_8=1289/10] [L98] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=256, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_5=1, var_1_6=1073741823, var_1_7=256, var_1_8=1289/10] [L111] RET updateVariables() [L112] CALL step() [L39] COND TRUE var_1_9 != var_1_10 [L40] COND FALSE !(var_1_2 || var_1_13) [L43] var_1_12 = var_1_14 [L48] unsigned short int stepLocal_0 = var_1_3; [L49] COND TRUE \read(var_1_12) [L50] COND FALSE !(stepLocal_0 <= var_1_4) [L56] unsigned long int stepLocal_1 = var_1_1; [L57] COND TRUE var_1_7 >= stepLocal_1 [L58] var_1_8 = ((((0.5f) < (var_1_9)) ? (0.5f) : (var_1_9))) [L62] COND TRUE var_1_10 >= ((((((((128.175f) > (var_1_9)) ? (128.175f) : (var_1_9)))) < (var_1_8)) ? (((((128.175f) > (var_1_9)) ? (128.175f) : (var_1_9)))) : (var_1_8))) [L63] var_1_11 = var_1_10 [L112] RET step() [L113] CALL, EXPR property() [L103-L104] return (((var_1_12 ? ((var_1_3 <= var_1_4) ? (var_1_1 == ((unsigned long int) (((((var_1_3) > ((var_1_4 + var_1_5))) ? (var_1_3) : ((var_1_4 + var_1_5)))) + (var_1_6 - var_1_7)))) : 1) : (var_1_1 == ((unsigned long int) var_1_7))) && ((var_1_7 >= var_1_1) ? (var_1_8 == ((float) ((((0.5f) < (var_1_9)) ? (0.5f) : (var_1_9))))) : (var_1_8 == ((float) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))))) && ((var_1_10 >= ((((((((128.175f) > (var_1_9)) ? (128.175f) : (var_1_9)))) < (var_1_8)) ? (((((128.175f) > (var_1_9)) ? (128.175f) : (var_1_9)))) : (var_1_8)))) ? (var_1_11 == ((float) var_1_10)) : ((! (var_1_7 <= var_1_6)) ? (var_1_11 == ((float) var_1_9)) : 1))) && ((var_1_9 != var_1_10) ? ((var_1_2 || var_1_13) ? (var_1_12 == ((unsigned char) (var_1_13 || var_1_14))) : (var_1_12 == ((unsigned char) var_1_14))) : (var_1_12 == ((unsigned char) var_1_14))) ; [L113] RET, EXPR property() [L113] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1/2, var_1_11=1/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=1073741823, var_1_7=256, var_1_8=1/2, var_1_9=1/2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1/2, var_1_11=1/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=0, var_1_3=1, var_1_4=0, var_1_5=1, var_1_6=1073741823, var_1_7=256, var_1_8=1/2, var_1_9=1/2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 18, 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=37occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 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 16:40:18,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/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_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/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_238bfb26-7076-42eb-a6a6-dadbb657b449/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 4ec0cc32831f45c9c4bdd4e08577f8de21576bedb3983ee0d68f8f49a302561c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:40:20,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:40:20,585 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 16:40:20,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:40:20,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:40:20,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:40:20,619 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:40:20,620 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:40:20,620 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:40:20,621 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:40:20,622 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:40:20,622 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:40:20,623 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:40:20,623 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:40:20,624 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:40:20,624 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:40:20,625 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:40:20,625 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:40:20,626 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:40:20,626 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:40:20,627 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:40:20,628 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:40:20,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:40:20,629 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:40:20,629 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 16:40:20,629 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 16:40:20,630 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 16:40:20,630 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:40:20,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:40:20,631 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:40:20,631 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:40:20,632 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 16:40:20,632 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:40:20,633 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:40:20,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:40:20,633 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:40:20,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:40:20,633 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:40:20,634 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 16:40:20,634 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 16:40:20,634 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:40:20,635 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:40:20,635 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:40:20,635 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:40:20,635 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_238bfb26-7076-42eb-a6a6-dadbb657b449/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ec0cc32831f45c9c4bdd4e08577f8de21576bedb3983ee0d68f8f49a302561c [2023-12-02 16:40:20,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:40:20,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:40:20,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:40:20,923 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:40:20,924 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:40:20,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-25.i [2023-12-02 16:40:23,636 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:40:23,837 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:40:23,837 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-25.i [2023-12-02 16:40:23,845 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/data/d0aea1324/da46f18a88b64301b45c51441ce06b72/FLAG58892d6f7 [2023-12-02 16:40:23,858 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/data/d0aea1324/da46f18a88b64301b45c51441ce06b72 [2023-12-02 16:40:23,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:40:23,862 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:40:23,863 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:40:23,863 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:40:23,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:40:23,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:40:23" (1/1) ... [2023-12-02 16:40:23,870 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@797975f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:23, skipping insertion in model container [2023-12-02 16:40:23,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:40:23" (1/1) ... [2023-12-02 16:40:23,897 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:40:24,046 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_238bfb26-7076-42eb-a6a6-dadbb657b449/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-25.i[917,930] [2023-12-02 16:40:24,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:40:24,102 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:40:24,115 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_238bfb26-7076-42eb-a6a6-dadbb657b449/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-25.i[917,930] [2023-12-02 16:40:24,136 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:40:24,155 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:40:24,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:24 WrapperNode [2023-12-02 16:40:24,156 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:40:24,157 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:40:24,157 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:40:24,157 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:40:24,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:24" (1/1) ... [2023-12-02 16:40:24,176 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:24" (1/1) ... [2023-12-02 16:40:24,203 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2023-12-02 16:40:24,203 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:40:24,204 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:40:24,204 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:40:24,205 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:40:24,214 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:24" (1/1) ... [2023-12-02 16:40:24,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:24" (1/1) ... [2023-12-02 16:40:24,218 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:24" (1/1) ... [2023-12-02 16:40:24,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:24" (1/1) ... [2023-12-02 16:40:24,228 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:24" (1/1) ... [2023-12-02 16:40:24,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:24" (1/1) ... [2023-12-02 16:40:24,234 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:24" (1/1) ... [2023-12-02 16:40:24,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:24" (1/1) ... [2023-12-02 16:40:24,240 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:40:24,241 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:40:24,241 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:40:24,241 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:40:24,242 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:24" (1/1) ... [2023-12-02 16:40:24,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:40:24,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:40:24,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:40:24,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:40:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:40:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 16:40:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:40:24,305 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:40:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:40:24,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:40:24,387 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:40:24,389 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:40:24,656 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:40:24,711 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:40:24,711 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:40:24,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:40:24 BoogieIcfgContainer [2023-12-02 16:40:24,712 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:40:24,714 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:40:24,714 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:40:24,716 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:40:24,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:40:23" (1/3) ... [2023-12-02 16:40:24,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691ab535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:40:24, skipping insertion in model container [2023-12-02 16:40:24,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:40:24" (2/3) ... [2023-12-02 16:40:24,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691ab535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:40:24, skipping insertion in model container [2023-12-02 16:40:24,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:40:24" (3/3) ... [2023-12-02 16:40:24,719 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-25.i [2023-12-02 16:40:24,733 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:40:24,734 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:40:24,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:40:24,779 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;@313734db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:40:24,779 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:40:24,784 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 16:40:24,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 16:40:24,794 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:40:24,795 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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 16:40:24,796 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:40:24,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:40:24,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1711721589, now seen corresponding path program 1 times [2023-12-02 16:40:24,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:40:24,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902529875] [2023-12-02 16:40:24,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:40:24,812 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 16:40:24,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:40:24,815 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/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 16:40:24,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/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 16:40:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:40:25,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 16:40:25,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:40:25,088 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-12-02 16:40:25,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:40:25,089 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:40:25,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902529875] [2023-12-02 16:40:25,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902529875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:40:25,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:40:25,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:40:25,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127026282] [2023-12-02 16:40:25,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:40:25,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:40:25,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:40:25,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:40:25,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:40:25,125 INFO L87 Difference]: Start difference. First operand has 50 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 16:40:25,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:40:25,172 INFO L93 Difference]: Finished difference Result 97 states and 170 transitions. [2023-12-02 16:40:25,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:40:25,175 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 111 [2023-12-02 16:40:25,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:40:25,181 INFO L225 Difference]: With dead ends: 97 [2023-12-02 16:40:25,181 INFO L226 Difference]: Without dead ends: 48 [2023-12-02 16:40:25,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 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 16:40:25,188 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:40:25,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:40:25,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-12-02 16:40:25,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-12-02 16:40:25,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 16:40:25,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 72 transitions. [2023-12-02 16:40:25,226 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 72 transitions. Word has length 111 [2023-12-02 16:40:25,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:40:25,227 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 72 transitions. [2023-12-02 16:40:25,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 16:40:25,227 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 72 transitions. [2023-12-02 16:40:25,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 16:40:25,230 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:40:25,231 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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 16:40:25,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/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 16:40:25,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/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 16:40:25,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:40:25,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:40:25,437 INFO L85 PathProgramCache]: Analyzing trace with hash -418151943, now seen corresponding path program 1 times [2023-12-02 16:40:25,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:40:25,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851318102] [2023-12-02 16:40:25,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:40:25,438 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 16:40:25,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:40:25,440 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/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 16:40:25,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/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 16:40:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:40:25,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 16:40:25,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:40:25,813 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-02 16:40:25,813 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:40:25,813 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:40:25,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851318102] [2023-12-02 16:40:25,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851318102] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:40:25,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:40:25,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 16:40:25,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193225483] [2023-12-02 16:40:25,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:40:25,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 16:40:25,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:40:25,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 16:40:25,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-02 16:40:25,818 INFO L87 Difference]: Start difference. First operand 48 states and 72 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 16:40:26,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:40:26,329 INFO L93 Difference]: Finished difference Result 105 states and 151 transitions. [2023-12-02 16:40:26,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 16:40:26,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 111 [2023-12-02 16:40:26,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:40:26,334 INFO L225 Difference]: With dead ends: 105 [2023-12-02 16:40:26,334 INFO L226 Difference]: Without dead ends: 58 [2023-12-02 16:40:26,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-12-02 16:40:26,337 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 107 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:40:26,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 147 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 16:40:26,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-02 16:40:26,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2023-12-02 16:40:26,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 34 states have internal predecessors, (41), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 16:40:26,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2023-12-02 16:40:26,354 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 111 [2023-12-02 16:40:26,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:40:26,355 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2023-12-02 16:40:26,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 16:40:26,355 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2023-12-02 16:40:26,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-02 16:40:26,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:40:26,358 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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 16:40:26,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/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 16:40:26,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/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 16:40:26,564 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:40:26,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:40:26,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1371630986, now seen corresponding path program 1 times [2023-12-02 16:40:26,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:40:26,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785368003] [2023-12-02 16:40:26,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:40:26,566 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 16:40:26,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:40:26,567 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/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 16:40:26,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238bfb26-7076-42eb-a6a6-dadbb657b449/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 (4)] Waiting until timeout for monitored process [2023-12-02 16:40:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:40:26,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 16:40:26,783 INFO L285 TraceCheckSpWp]: Computing forward predicates...