./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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 476382d18560c39f16aae727092b47108fdc1ae0e3eedbadcc67982af5d45e6d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:21:04,900 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:21:04,965 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 15:21:04,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:21:04,970 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:21:04,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:21:04,992 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:21:04,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:21:04,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:21:04,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:21:04,994 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:21:04,995 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:21:04,995 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:21:04,995 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:21:04,996 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:21:04,996 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:21:04,997 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:21:04,997 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:21:04,998 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:21:04,998 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:21:04,999 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:21:04,999 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:21:05,000 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:21:05,001 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:21:05,001 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:21:05,001 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:21:05,002 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:21:05,002 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:21:05,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:21:05,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:21:05,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:21:05,009 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:21:05,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:21:05,009 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:21:05,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:21:05,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:21:05,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:21:05,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:21:05,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:21:05,011 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:21:05,011 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:21:05,011 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:21:05,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:21:05,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:21:05,012 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:21:05,012 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:21:05,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:21:05,012 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_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 476382d18560c39f16aae727092b47108fdc1ae0e3eedbadcc67982af5d45e6d [2023-12-02 15:21:05,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:21:05,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:21:05,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:21:05,246 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:21:05,247 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:21:05,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i [2023-12-02 15:21:07,956 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:21:08,143 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:21:08,143 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i [2023-12-02 15:21:08,153 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/data/ff25877aa/eea8238b995c4103a17511e0a5309cb4/FLAG88c19ff1f [2023-12-02 15:21:08,167 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/data/ff25877aa/eea8238b995c4103a17511e0a5309cb4 [2023-12-02 15:21:08,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:21:08,170 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:21:08,171 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:21:08,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:21:08,176 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:21:08,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:21:08" (1/1) ... [2023-12-02 15:21:08,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8c3fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:08, skipping insertion in model container [2023-12-02 15:21:08,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:21:08" (1/1) ... [2023-12-02 15:21:08,209 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:21:08,355 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_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i[913,926] [2023-12-02 15:21:08,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:21:08,405 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:21:08,418 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_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i[913,926] [2023-12-02 15:21:08,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:21:08,454 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:21:08,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:08 WrapperNode [2023-12-02 15:21:08,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:21:08,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:21:08,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:21:08,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:21:08,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:08" (1/1) ... [2023-12-02 15:21:08,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:08" (1/1) ... [2023-12-02 15:21:08,500 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 105 [2023-12-02 15:21:08,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:21:08,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:21:08,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:21:08,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:21:08,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:08" (1/1) ... [2023-12-02 15:21:08,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:08" (1/1) ... [2023-12-02 15:21:08,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:08" (1/1) ... [2023-12-02 15:21:08,515 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:08" (1/1) ... [2023-12-02 15:21:08,522 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:08" (1/1) ... [2023-12-02 15:21:08,525 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:08" (1/1) ... [2023-12-02 15:21:08,527 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:08" (1/1) ... [2023-12-02 15:21:08,529 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:08" (1/1) ... [2023-12-02 15:21:08,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:21:08,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:21:08,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:21:08,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:21:08,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:08" (1/1) ... [2023-12-02 15:21:08,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:21:08,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:21:08,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:21:08,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:21:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:21:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 15:21:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 15:21:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:21:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:21:08,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:21:08,688 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:21:08,690 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:21:08,888 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:21:08,980 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:21:08,980 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:21:08,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:21:08 BoogieIcfgContainer [2023-12-02 15:21:08,982 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:21:09,007 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:21:09,007 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:21:09,010 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:21:09,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:21:08" (1/3) ... [2023-12-02 15:21:09,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a92e0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:21:09, skipping insertion in model container [2023-12-02 15:21:09,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:08" (2/3) ... [2023-12-02 15:21:09,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a92e0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:21:09, skipping insertion in model container [2023-12-02 15:21:09,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:21:08" (3/3) ... [2023-12-02 15:21:09,013 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-13.i [2023-12-02 15:21:09,027 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:21:09,028 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:21:09,067 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:21:09,073 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;@210ee42e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:21:09,073 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:21:09,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 15:21:09,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 15:21:09,084 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:21:09,085 INFO L195 NwaCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:21:09,085 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:21:09,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:21:09,090 INFO L85 PathProgramCache]: Analyzing trace with hash 132640696, now seen corresponding path program 1 times [2023-12-02 15:21:09,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:21:09,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63642910] [2023-12-02 15:21:09,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:21:09,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:21:09,212 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 15:21:09,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1475544796] [2023-12-02 15:21:09,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:21:09,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:21:09,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:21:09,217 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:21:09,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:21:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:21:09,362 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:21:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:21:09,476 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:21:09,478 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:21:09,480 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 15:21:09,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:21:09,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:21:09,685 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 15:21:09,688 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:21:09,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:21:09 BoogieIcfgContainer [2023-12-02 15:21:09,734 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:21:09,735 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:21:09,735 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:21:09,735 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:21:09,735 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:21:08" (3/4) ... [2023-12-02 15:21:09,738 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 15:21:09,739 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:21:09,740 INFO L158 Benchmark]: Toolchain (without parser) took 1569.19ms. Allocated memory is still 127.9MB. Free memory was 93.0MB in the beginning and 70.5MB in the end (delta: 22.5MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2023-12-02 15:21:09,740 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 127.9MB. Free memory is still 99.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:21:09,741 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.97ms. Allocated memory is still 127.9MB. Free memory was 93.0MB in the beginning and 80.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 15:21:09,742 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.51ms. Allocated memory is still 127.9MB. Free memory was 80.4MB in the beginning and 78.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:21:09,742 INFO L158 Benchmark]: Boogie Preprocessor took 31.08ms. Allocated memory is still 127.9MB. Free memory was 78.0MB in the beginning and 76.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:21:09,743 INFO L158 Benchmark]: RCFGBuilder took 449.55ms. Allocated memory is still 127.9MB. Free memory was 76.2MB in the beginning and 54.2MB in the end (delta: 22.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 15:21:09,744 INFO L158 Benchmark]: TraceAbstraction took 726.74ms. Allocated memory is still 127.9MB. Free memory was 100.3MB in the beginning and 70.5MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-12-02 15:21:09,744 INFO L158 Benchmark]: Witness Printer took 4.29ms. Allocated memory is still 127.9MB. Free memory is still 70.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:21:09,747 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 127.9MB. Free memory is still 99.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.97ms. Allocated memory is still 127.9MB. Free memory was 93.0MB in the beginning and 80.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.51ms. Allocated memory is still 127.9MB. Free memory was 80.4MB in the beginning and 78.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.08ms. Allocated memory is still 127.9MB. Free memory was 78.0MB in the beginning and 76.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 449.55ms. Allocated memory is still 127.9MB. Free memory was 76.2MB in the beginning and 54.2MB in the end (delta: 22.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 726.74ms. Allocated memory is still 127.9MB. Free memory was 100.3MB in the beginning and 70.5MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 4.29ms. Allocated memory is still 127.9MB. Free memory is still 70.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 someBinaryDOUBLEComparisonOperation at line 38. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 25; [L23] unsigned char var_1_2 = 1; [L24] signed char var_1_5 = 16; [L25] unsigned short int var_1_6 = 16; [L26] signed char var_1_7 = 4; [L27] unsigned short int var_1_8 = 2; [L28] signed char var_1_9 = 64; [L29] signed char var_1_10 = 0; [L30] unsigned char var_1_11 = 16; [L31] double var_1_12 = 128.4; [L32] double var_1_13 = 50.2; [L33] double var_1_14 = 3.8; [L34] double var_1_15 = 25.1; [L92] isInitial = 1 [L93] FCALL initially() [L94] COND TRUE 1 [L95] FCALL updateLastVariables() [L96] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_uchar() [L61] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L62] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L63] var_1_6 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L65] CALL assume_abort_if_not(var_1_6 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_6 <= 65535) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L66] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=4, var_1_8=2, var_1_9=64] [L67] var_1_7 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=64] [L69] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=64] [L70] var_1_9 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_9 >= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_9 >= 63) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] [L72] CALL assume_abort_if_not(var_1_9 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_9 <= 127) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] [L73] var_1_10 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=31, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] [L75] CALL assume_abort_if_not(var_1_10 <= 64) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_10 <= 64) VAL [isInitial=1, var_1_10=31, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] [L76] var_1_12 = __VERIFIER_nondet_double() [L77] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=16, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=31, var_1_11=16, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] [L78] var_1_13 = __VERIFIER_nondet_double() [L79] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=16, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=31, var_1_11=16, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] [L80] var_1_14 = __VERIFIER_nondet_double() [L81] CALL assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=16, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=31, var_1_11=16, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] [L82] var_1_15 = __VERIFIER_nondet_double() [L83] CALL assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=16, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=31, var_1_11=16, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] [L96] RET updateVariables() [L97] CALL step() [L38] COND FALSE !(((var_1_12 - var_1_13) + var_1_14) <= (256.625 * ((((1.875) > (var_1_15)) ? (1.875) : (var_1_15))))) [L41] COND FALSE !(\read(var_1_2)) [L44] COND FALSE !((var_1_1 == 16) || (var_1_11 < (10 / var_1_6))) [L47] var_1_5 = 5 [L49] unsigned char stepLocal_1 = var_1_11; [L50] unsigned char stepLocal_0 = var_1_2; [L51] COND TRUE stepLocal_0 || (var_1_11 >= var_1_11) [L52] COND FALSE !(stepLocal_1 < ((var_1_9 - var_1_10) - 16)) [L97] RET step() [L98] CALL, EXPR property() [L88-L89] return (((var_1_2 ? (var_1_1 == ((unsigned short int) ((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))))) : 1) && (((var_1_1 == 16) || (var_1_11 < (10 / var_1_6))) ? (var_1_5 == ((signed char) var_1_7)) : (var_1_5 == ((signed char) 5)))) && ((var_1_2 || (var_1_11 >= var_1_11)) ? ((var_1_11 < ((var_1_9 - var_1_10) - 16)) ? (var_1_8 == ((unsigned short int) ((((var_1_10) > (32)) ? (var_1_10) : (32))))) : 1) : (var_1_8 == ((unsigned short int) ((((var_1_9) < (var_1_11)) ? (var_1_9) : (var_1_11))))))) && ((((var_1_12 - var_1_13) + var_1_14) <= (256.625 * ((((1.875) > (var_1_15)) ? (1.875) : (var_1_15))))) ? (var_1_11 == ((unsigned char) (((((5) < 0 ) ? -(5) : (5))) + 5))) : 1) ; [L98] RET, EXPR property() [L98] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=31, var_1_11=16, var_1_1=25, var_1_2=0, var_1_5=5, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=31, var_1_11=16, var_1_1=25, var_1_2=0, var_1_5=5, var_1_6=10, var_1_7=126, var_1_8=2, var_1_9=63] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 15, 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=33occurred 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, 58 NumberOfCodeBlocks, 58 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 15:21:09,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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 476382d18560c39f16aae727092b47108fdc1ae0e3eedbadcc67982af5d45e6d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:21:11,704 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:21:11,787 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 15:21:11,793 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:21:11,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:21:11,820 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:21:11,821 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:21:11,821 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:21:11,822 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:21:11,823 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:21:11,823 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:21:11,824 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:21:11,824 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:21:11,825 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:21:11,825 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:21:11,826 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:21:11,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:21:11,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:21:11,828 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:21:11,828 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:21:11,829 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:21:11,829 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:21:11,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:21:11,830 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:21:11,831 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 15:21:11,831 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 15:21:11,832 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 15:21:11,832 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:21:11,833 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:21:11,833 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:21:11,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:21:11,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 15:21:11,834 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:21:11,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:21:11,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:21:11,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:21:11,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:21:11,836 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:21:11,836 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 15:21:11,836 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 15:21:11,836 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:21:11,837 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:21:11,837 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:21:11,837 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:21:11,837 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_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 476382d18560c39f16aae727092b47108fdc1ae0e3eedbadcc67982af5d45e6d [2023-12-02 15:21:12,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:21:12,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:21:12,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:21:12,151 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:21:12,151 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:21:12,153 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i [2023-12-02 15:21:14,958 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:21:15,168 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:21:15,168 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i [2023-12-02 15:21:15,176 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/data/069c0fb1c/31d5f7bd493b44ca869db8222b96b01f/FLAG775fab58a [2023-12-02 15:21:15,190 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/data/069c0fb1c/31d5f7bd493b44ca869db8222b96b01f [2023-12-02 15:21:15,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:21:15,194 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:21:15,195 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:21:15,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:21:15,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:21:15,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:21:15" (1/1) ... [2023-12-02 15:21:15,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aff5ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:15, skipping insertion in model container [2023-12-02 15:21:15,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:21:15" (1/1) ... [2023-12-02 15:21:15,225 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:21:15,350 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_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i[913,926] [2023-12-02 15:21:15,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:21:15,408 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:21:15,418 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_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i[913,926] [2023-12-02 15:21:15,442 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:21:15,461 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:21:15,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:15 WrapperNode [2023-12-02 15:21:15,462 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:21:15,463 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:21:15,463 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:21:15,463 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:21:15,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:15" (1/1) ... [2023-12-02 15:21:15,480 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:15" (1/1) ... [2023-12-02 15:21:15,508 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102 [2023-12-02 15:21:15,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:21:15,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:21:15,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:21:15,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:21:15,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:15" (1/1) ... [2023-12-02 15:21:15,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:15" (1/1) ... [2023-12-02 15:21:15,523 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:15" (1/1) ... [2023-12-02 15:21:15,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:15" (1/1) ... [2023-12-02 15:21:15,533 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:15" (1/1) ... [2023-12-02 15:21:15,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:15" (1/1) ... [2023-12-02 15:21:15,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:15" (1/1) ... [2023-12-02 15:21:15,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:15" (1/1) ... [2023-12-02 15:21:15,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:21:15,548 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:21:15,548 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:21:15,548 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:21:15,549 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:15" (1/1) ... [2023-12-02 15:21:15,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:21:15,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:21:15,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:21:15,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:21:15,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:21:15,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 15:21:15,624 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 15:21:15,624 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 15:21:15,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:21:15,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:21:15,720 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:21:15,722 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:21:21,944 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:21:21,990 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:21:21,990 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:21:21,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:21:21 BoogieIcfgContainer [2023-12-02 15:21:21,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:21:21,993 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:21:21,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:21:21,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:21:21,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:21:15" (1/3) ... [2023-12-02 15:21:21,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7e0556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:21:21, skipping insertion in model container [2023-12-02 15:21:21,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:21:15" (2/3) ... [2023-12-02 15:21:21,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7e0556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:21:21, skipping insertion in model container [2023-12-02 15:21:21,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:21:21" (3/3) ... [2023-12-02 15:21:21,999 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-13.i [2023-12-02 15:21:22,017 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:21:22,017 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:21:22,055 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:21:22,060 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;@7ecc57b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:21:22,060 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:21:22,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 15:21:22,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-02 15:21:22,075 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:21:22,076 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:21:22,076 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:21:22,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:21:22,081 INFO L85 PathProgramCache]: Analyzing trace with hash 74501972, now seen corresponding path program 1 times [2023-12-02 15:21:22,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:21:22,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69381588] [2023-12-02 15:21:22,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:21:22,096 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 15:21:22,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:21:22,098 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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 15:21:22,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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 15:21:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:21:22,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 15:21:22,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:21:22,532 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 15:21:22,532 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:21:22,533 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:21:22,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69381588] [2023-12-02 15:21:22,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69381588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:21:22,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:21:22,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:21:22,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684857867] [2023-12-02 15:21:22,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:21:22,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 15:21:22,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:21:22,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 15:21:22,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:21:22,573 INFO L87 Difference]: Start difference. First operand has 43 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 15:21:24,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:24,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:21:24,700 INFO L93 Difference]: Finished difference Result 83 states and 143 transitions. [2023-12-02 15:21:24,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 15:21:24,726 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 94 [2023-12-02 15:21:24,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:21:24,732 INFO L225 Difference]: With dead ends: 83 [2023-12-02 15:21:24,732 INFO L226 Difference]: Without dead ends: 41 [2023-12-02 15:21:24,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 93 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 15:21:24,738 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:21:24,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2023-12-02 15:21:24,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-12-02 15:21:24,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-12-02 15:21:24,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 15:21:24,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 59 transitions. [2023-12-02 15:21:24,780 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 59 transitions. Word has length 94 [2023-12-02 15:21:24,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:21:24,780 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 59 transitions. [2023-12-02 15:21:24,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 15:21:24,781 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2023-12-02 15:21:24,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 15:21:24,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:21:24,784 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:21:24,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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 15:21:24,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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 15:21:24,985 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:21:24,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:21:24,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1030474629, now seen corresponding path program 1 times [2023-12-02 15:21:24,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:21:24,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350989524] [2023-12-02 15:21:24,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:21:24,987 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 15:21:24,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:21:24,988 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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 15:21:24,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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 15:21:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:21:25,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 15:21:25,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:21:25,471 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 15:21:25,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:21:25,471 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:21:25,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350989524] [2023-12-02 15:21:25,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350989524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:21:25,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:21:25,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 15:21:25,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424783926] [2023-12-02 15:21:25,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:21:25,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 15:21:25,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:21:25,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 15:21:25,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:21:25,475 INFO L87 Difference]: Start difference. First operand 41 states and 59 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 15:21:26,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:28,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:31,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:31,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:21:31,574 INFO L93 Difference]: Finished difference Result 161 states and 233 transitions. [2023-12-02 15:21:31,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:21:31,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2023-12-02 15:21:31,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:21:31,598 INFO L225 Difference]: With dead ends: 161 [2023-12-02 15:21:31,598 INFO L226 Difference]: Without dead ends: 121 [2023-12-02 15:21:31,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:21:31,600 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 135 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:21:31,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 166 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 55 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2023-12-02 15:21:31,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-02 15:21:31,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 117. [2023-12-02 15:21:31,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 68 states have (on average 1.2058823529411764) internal successors, (82), 68 states have internal predecessors, (82), 45 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-02 15:21:31,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 172 transitions. [2023-12-02 15:21:31,635 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 172 transitions. Word has length 95 [2023-12-02 15:21:31,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:21:31,636 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 172 transitions. [2023-12-02 15:21:31,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 15:21:31,636 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 172 transitions. [2023-12-02 15:21:31,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 15:21:31,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:21:31,639 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:21:31,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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 15:21:31,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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 15:21:31,842 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:21:31,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:21:31,843 INFO L85 PathProgramCache]: Analyzing trace with hash 744532733, now seen corresponding path program 1 times [2023-12-02 15:21:31,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:21:31,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020920562] [2023-12-02 15:21:31,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:21:31,844 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 15:21:31,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:21:31,845 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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 15:21:31,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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 15:21:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:21:32,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 15:21:32,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:28:00,032 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-02 15:28:00,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:28:00,033 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:28:00,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020920562] [2023-12-02 15:28:00,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020920562] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:28:00,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:28:00,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 15:28:00,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864159393] [2023-12-02 15:28:00,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:28:00,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 15:28:00,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:28:00,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 15:28:00,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 15:28:00,036 INFO L87 Difference]: Start difference. First operand 117 states and 172 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 15:28:02,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:28:04,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:28:06,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:28:08,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:28:11,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:28:11,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:28:11,291 INFO L93 Difference]: Finished difference Result 145 states and 206 transitions. [2023-12-02 15:28:11,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 15:28:11,315 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2023-12-02 15:28:11,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:28:11,317 INFO L225 Difference]: With dead ends: 145 [2023-12-02 15:28:11,317 INFO L226 Difference]: Without dead ends: 143 [2023-12-02 15:28:11,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:28:11,318 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 179 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 69 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:28:11,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 318 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 115 Invalid, 3 Unknown, 0 Unchecked, 11.2s Time] [2023-12-02 15:28:11,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-12-02 15:28:11,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 137. [2023-12-02 15:28:11,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 78 states have (on average 1.1794871794871795) internal successors, (92), 79 states have internal predecessors, (92), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-02 15:28:11,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 200 transitions. [2023-12-02 15:28:11,337 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 200 transitions. Word has length 95 [2023-12-02 15:28:11,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:28:11,337 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 200 transitions. [2023-12-02 15:28:11,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-02 15:28:11,338 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 200 transitions. [2023-12-02 15:28:11,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 15:28:11,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:28:11,339 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:28:11,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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)] Ended with exit code 0 [2023-12-02 15:28:11,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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 15:28:11,540 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:28:11,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:28:11,541 INFO L85 PathProgramCache]: Analyzing trace with hash 744592315, now seen corresponding path program 1 times [2023-12-02 15:28:11,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:28:11,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [626327305] [2023-12-02 15:28:11,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:28:11,542 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 15:28:11,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:28:11,543 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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 15:28:11,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cc1e74e-6e41-4de3-b2cb-e6043fed4abb/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 (5)] Waiting until timeout for monitored process [2023-12-02 15:28:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:28:11,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 15:28:11,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:30:37,360 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 265 proven. 39 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-02 15:30:37,361 INFO L327 TraceCheckSpWp]: Computing backward predicates...