./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-59.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-59.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2 --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 e093e3889d1250dd6c4e72475f92fd634899e4114caa675b33a0cb0284b4d442 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:25:00,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:25:00,334 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 11:25:00,339 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:25:00,339 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:25:00,377 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:25:00,378 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:25:00,378 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:25:00,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:25:00,380 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:25:00,380 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:25:00,380 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:25:00,381 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:25:00,381 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:25:00,381 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:25:00,382 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:25:00,383 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:25:00,383 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:25:00,383 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:25:00,384 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:25:00,384 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:25:00,385 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:25:00,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:25:00,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:25:00,395 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:25:00,395 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:25:00,396 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:25:00,396 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:25:00,397 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:25:00,397 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:25:00,397 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:25:00,397 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:25:00,398 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:25:00,398 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:25:00,398 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:25:00,399 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:25:00,399 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:25:00,399 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:25:00,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:25:00,400 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:25:00,400 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:25:00,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:25:00,401 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:25:00,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:25:00,402 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:25:00,402 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:25:00,402 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:25:00,402 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_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e093e3889d1250dd6c4e72475f92fd634899e4114caa675b33a0cb0284b4d442 [2024-11-02 11:25:00,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:25:00,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:25:00,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:25:00,718 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:25:00,719 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:25:00,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-59.i Unable to find full path for "g++" [2024-11-02 11:25:02,734 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:25:02,967 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:25:02,968 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-59.i [2024-11-02 11:25:02,983 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/data/8b233c742/8d31e57f7dcb42d68d7e042f491db2b9/FLAG23fbd4358 [2024-11-02 11:25:03,307 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/data/8b233c742/8d31e57f7dcb42d68d7e042f491db2b9 [2024-11-02 11:25:03,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:25:03,311 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:25:03,312 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:25:03,312 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:25:03,319 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:25:03,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:03" (1/1) ... [2024-11-02 11:25:03,321 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3419c070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:03, skipping insertion in model container [2024-11-02 11:25:03,321 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:03" (1/1) ... [2024-11-02 11:25:03,351 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:25:03,540 WARN L251 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_481776d0-31a0-48bb-be30-ac79ae45da9f/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-59.i[913,926] [2024-11-02 11:25:03,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:25:03,613 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:25:03,626 WARN L251 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_481776d0-31a0-48bb-be30-ac79ae45da9f/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-59.i[913,926] [2024-11-02 11:25:03,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:25:03,685 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:25:03,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:03 WrapperNode [2024-11-02 11:25:03,686 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:25:03,687 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:25:03,687 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:25:03,688 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:25:03,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:03" (1/1) ... [2024-11-02 11:25:03,704 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:03" (1/1) ... [2024-11-02 11:25:03,752 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 133 [2024-11-02 11:25:03,753 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:25:03,753 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:25:03,753 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:25:03,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:25:03,763 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:03" (1/1) ... [2024-11-02 11:25:03,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:03" (1/1) ... [2024-11-02 11:25:03,767 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:03" (1/1) ... [2024-11-02 11:25:03,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:03" (1/1) ... [2024-11-02 11:25:03,777 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:03" (1/1) ... [2024-11-02 11:25:03,781 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:03" (1/1) ... [2024-11-02 11:25:03,784 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:03" (1/1) ... [2024-11-02 11:25:03,790 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:03" (1/1) ... [2024-11-02 11:25:03,795 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:25:03,800 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:25:03,803 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:25:03,803 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:25:03,804 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:03" (1/1) ... [2024-11-02 11:25:03,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:25:03,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:03,842 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:25:03,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:25:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:25:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 11:25:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 11:25:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:25:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:25:03,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:25:03,972 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:25:03,974 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:25:04,477 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-02 11:25:04,477 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:25:04,642 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:25:04,663 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 11:25:04,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:04 BoogieIcfgContainer [2024-11-02 11:25:04,664 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:25:04,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:25:04,668 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:25:04,672 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:25:04,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:25:03" (1/3) ... [2024-11-02 11:25:04,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac21c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:25:04, skipping insertion in model container [2024-11-02 11:25:04,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:03" (2/3) ... [2024-11-02 11:25:04,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac21c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:25:04, skipping insertion in model container [2024-11-02 11:25:04,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:04" (3/3) ... [2024-11-02 11:25:04,678 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-59.i [2024-11-02 11:25:04,719 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:25:04,720 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:25:04,797 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:25:04,802 INFO L333 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, 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;@7a57ad3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:25:04,803 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:25:04,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-02 11:25:04,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-02 11:25:04,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:04,819 INFO L215 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:04,819 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:25:04,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:04,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1690178289, now seen corresponding path program 1 times [2024-11-02 11:25:04,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:04,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670427809] [2024-11-02 11:25:04,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:04,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 11:25:05,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1457980046] [2024-11-02 11:25:05,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:05,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:25:05,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:05,328 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:25:05,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 11:25:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 11:25:05,642 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 11:25:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 11:25:05,857 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 11:25:05,860 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 11:25:05,862 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 11:25:05,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-02 11:25:06,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-02 11:25:06,073 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 11:25:06,220 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 11:25:06,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:25:06 BoogieIcfgContainer [2024-11-02 11:25:06,224 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 11:25:06,225 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 11:25:06,225 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 11:25:06,226 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 11:25:06,226 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:04" (3/4) ... [2024-11-02 11:25:06,230 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 11:25:06,231 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 11:25:06,233 INFO L158 Benchmark]: Toolchain (without parser) took 2921.75ms. Allocated memory was 155.2MB in the beginning and 205.5MB in the end (delta: 50.3MB). Free memory was 117.5MB in the beginning and 127.0MB in the end (delta: -9.5MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2024-11-02 11:25:06,233 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 155.2MB. Free memory is still 120.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:25:06,234 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.16ms. Allocated memory is still 155.2MB. Free memory was 117.5MB in the beginning and 101.7MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-02 11:25:06,234 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.55ms. Allocated memory is still 155.2MB. Free memory was 101.7MB in the beginning and 97.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 11:25:06,235 INFO L158 Benchmark]: Boogie Preprocessor took 45.62ms. Allocated memory is still 155.2MB. Free memory was 97.6MB in the beginning and 96.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 11:25:06,236 INFO L158 Benchmark]: RCFGBuilder took 864.47ms. Allocated memory is still 155.2MB. Free memory was 96.0MB in the beginning and 123.1MB in the end (delta: -27.1MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. [2024-11-02 11:25:06,237 INFO L158 Benchmark]: TraceAbstraction took 1558.50ms. Allocated memory was 155.2MB in the beginning and 205.5MB in the end (delta: 50.3MB). Free memory was 122.4MB in the beginning and 127.0MB in the end (delta: -4.5MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2024-11-02 11:25:06,237 INFO L158 Benchmark]: Witness Printer took 6.30ms. Allocated memory is still 205.5MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:25:06,240 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 155.2MB. Free memory is still 120.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.16ms. Allocated memory is still 155.2MB. Free memory was 117.5MB in the beginning and 101.7MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.55ms. Allocated memory is still 155.2MB. Free memory was 101.7MB in the beginning and 97.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.62ms. Allocated memory is still 155.2MB. Free memory was 97.6MB in the beginning and 96.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 864.47ms. Allocated memory is still 155.2MB. Free memory was 96.0MB in the beginning and 123.1MB in the end (delta: -27.1MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1558.50ms. Allocated memory was 155.2MB in the beginning and 205.5MB in the end (delta: 50.3MB). Free memory was 122.4MB in the beginning and 127.0MB in the end (delta: -4.5MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. * Witness Printer took 6.30ms. Allocated memory is still 205.5MB. Free memory is still 127.0MB. 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 66, overapproximation of someBinaryArithmeticDOUBLEoperation at line 68. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 1; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 100; [L25] unsigned char var_1_4 = 25; [L26] unsigned short int var_1_5 = 0; [L27] unsigned short int var_1_6 = 62100; [L28] unsigned short int var_1_7 = 27651; [L29] double var_1_8 = 128.9; [L30] unsigned char var_1_9 = 1; [L31] double var_1_10 = 16.5; [L32] double var_1_11 = 25.5; [L33] double var_1_12 = 199.75; [L34] unsigned char var_1_13 = 2; [L35] unsigned char var_1_14 = 1; [L36] unsigned char var_1_15 = 1; [L37] unsigned char var_1_16 = 1; [L38] unsigned short int var_1_17 = 32; [L39] unsigned char var_1_18 = 1; [L40] unsigned long int var_1_19 = 1; [L131] isInitial = 1 [L132] FCALL initially() [L133] COND TRUE 1 [L134] FCALL updateLastVariables() [L135] CALL updateVariables() [L92] var_1_2 = __VERIFIER_nondet_uchar() [L93] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_3=100, var_1_4=25, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_3=100, var_1_4=25, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L94] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_3=100, var_1_4=25, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_3=100, var_1_4=25, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L95] var_1_3 = __VERIFIER_nondet_uchar() [L96] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=25, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=25, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L97] CALL assume_abort_if_not(var_1_3 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=25, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_3 <= 255) VAL [isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=25, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L98] var_1_4 = __VERIFIER_nondet_uchar() [L99] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L100] CALL assume_abort_if_not(var_1_4 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_4 <= 255) VAL [isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L101] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L102] var_1_6 = __VERIFIER_nondet_ushort() [L103] CALL assume_abort_if_not(var_1_6 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(var_1_6 >= 32767) VAL [isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L104] CALL assume_abort_if_not(var_1_6 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_6 <= 65534) VAL [isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=27651, var_1_8=1289/10, var_1_9=1] [L105] var_1_7 = __VERIFIER_nondet_ushort() [L106] CALL assume_abort_if_not(var_1_7 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_7 >= 16383) VAL [isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L107] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L108] var_1_9 = __VERIFIER_nondet_uchar() [L109] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10] [L110] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L111] var_1_10 = __VERIFIER_nondet_double() [L112] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L113] var_1_11 = __VERIFIER_nondet_double() [L114] CALL assume_abort_if_not((var_1_11 >= -461168.6018427382800e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not((var_1_11 >= -461168.6018427382800e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L115] var_1_12 = __VERIFIER_nondet_double() [L116] CALL assume_abort_if_not((var_1_12 >= -461168.6018427382800e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not((var_1_12 >= -461168.6018427382800e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L117] var_1_14 = __VERIFIER_nondet_uchar() [L118] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_13=2, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_13=2, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L119] CALL assume_abort_if_not(var_1_14 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_13=2, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not(var_1_14 <= 254) VAL [isInitial=1, var_1_13=2, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L120] var_1_16 = __VERIFIER_nondet_uchar() [L121] CALL assume_abort_if_not(var_1_16 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_13=2, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not(var_1_16 >= 1) VAL [isInitial=1, var_1_13=2, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L122] CALL assume_abort_if_not(var_1_16 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_13=2, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L20] COND FALSE !(!cond) [L122] RET assume_abort_if_not(var_1_16 <= 1) VAL [isInitial=1, var_1_13=2, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_2=1, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=1289/10, var_1_9=1] [L135] RET updateVariables() [L136] CALL step() [L44] COND TRUE (var_1_3 != (16 / var_1_4)) && var_1_2 [L45] COND TRUE var_1_3 > var_1_4 [L46] var_1_1 = (var_1_4 + var_1_3) [L57] COND FALSE !(var_1_1 < var_1_3) [L60] COND FALSE !(! var_1_2) [L64] COND TRUE \read(var_1_2) [L65] COND TRUE (! var_1_9) || (var_1_5 < var_1_6) [L66] var_1_8 = ((((127.25) > (var_1_10)) ? (127.25) : (var_1_10))) [L73] COND TRUE var_1_3 != ((var_1_6 / var_1_4) * ((((var_1_1) > (var_1_5)) ? (var_1_1) : (var_1_5)))) [L74] COND TRUE var_1_3 <= var_1_6 [L75] var_1_13 = 32 [L82] COND TRUE var_1_12 != var_1_8 [L83] var_1_15 = (! var_1_16) [L87] var_1_17 = var_1_4 [L88] var_1_18 = var_1_16 [L89] var_1_19 = var_1_4 [L136] RET step() [L137] CALL, EXPR property() [L127-L128] return (((((((((var_1_3 != (16 / var_1_4)) && var_1_2) ? ((var_1_3 > var_1_4) ? (var_1_1 == ((unsigned short int) (var_1_4 + var_1_3))) : (var_1_2 ? (var_1_1 == ((unsigned short int) var_1_3)) : (var_1_1 == ((unsigned short int) var_1_4)))) : (var_1_1 == ((unsigned short int) var_1_3))) && ((var_1_1 < var_1_3) ? (var_1_5 == ((unsigned short int) (var_1_6 - (var_1_7 - var_1_3)))) : ((! var_1_2) ? (var_1_5 == ((unsigned short int) ((((var_1_3) > ((var_1_7 + var_1_4))) ? (var_1_3) : ((var_1_7 + var_1_4)))))) : 1))) && (var_1_2 ? (((! var_1_9) || (var_1_5 < var_1_6)) ? (var_1_8 == ((double) ((((127.25) > (var_1_10)) ? (127.25) : (var_1_10))))) : (var_1_8 == ((double) (var_1_11 + var_1_12)))) : (var_1_8 == ((double) var_1_11)))) && ((var_1_3 != ((var_1_6 / var_1_4) * ((((var_1_1) > (var_1_5)) ? (var_1_1) : (var_1_5))))) ? ((var_1_3 <= var_1_6) ? (var_1_13 == ((unsigned char) 32)) : (var_1_13 == ((unsigned char) var_1_14))) : (var_1_13 == ((unsigned char) var_1_14)))) && ((var_1_12 != var_1_8) ? (var_1_15 == ((unsigned char) (! var_1_16))) : (var_1_15 == ((unsigned char) var_1_16)))) && (var_1_17 == ((unsigned short int) var_1_4))) && (var_1_18 == ((unsigned char) var_1_16))) && (var_1_19 == ((unsigned long int) var_1_4)) ; [L137] RET, EXPR property() [L137] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_13=32, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=3, var_1_18=1, var_1_19=3, var_1_1=7, var_1_2=1, var_1_3=4, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=509/4, var_1_9=1] [L19] reach_error() VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_13=32, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=3, var_1_18=1, var_1_19=3, var_1_1=7, var_1_2=1, var_1_3=4, var_1_4=-509, var_1_5=0, var_1_6=32767, var_1_7=16383, var_1_8=509/4, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 2 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 [2024-11-02 11:25:06,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-59.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2 --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 e093e3889d1250dd6c4e72475f92fd634899e4114caa675b33a0cb0284b4d442 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:25:09,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:25:09,237 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-02 11:25:09,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:25:09,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:25:09,286 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:25:09,289 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:25:09,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:25:09,290 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:25:09,291 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:25:09,292 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:25:09,292 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:25:09,292 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:25:09,295 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:25:09,295 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:25:09,296 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:25:09,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:25:09,297 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:25:09,297 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:25:09,297 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:25:09,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:25:09,301 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:25:09,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:25:09,302 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:25:09,302 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 11:25:09,303 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 11:25:09,303 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:25:09,303 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 11:25:09,304 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:25:09,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:25:09,304 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:25:09,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:25:09,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 11:25:09,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:25:09,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:25:09,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:25:09,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:25:09,307 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:25:09,307 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:25:09,307 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 11:25:09,307 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 11:25:09,308 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:25:09,317 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:25:09,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:25:09,318 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_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e093e3889d1250dd6c4e72475f92fd634899e4114caa675b33a0cb0284b4d442 [2024-11-02 11:25:09,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:25:09,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:25:09,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:25:09,826 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:25:09,827 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:25:09,828 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-59.i Unable to find full path for "g++" [2024-11-02 11:25:12,199 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:25:12,461 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:25:12,462 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-59.i [2024-11-02 11:25:12,474 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/data/00726457e/c99349920ea8469d8f4acd2a2484ba69/FLAGfd10e70e4 [2024-11-02 11:25:12,494 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/data/00726457e/c99349920ea8469d8f4acd2a2484ba69 [2024-11-02 11:25:12,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:25:12,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:25:12,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:25:12,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:25:12,508 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:25:12,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:12" (1/1) ... [2024-11-02 11:25:12,510 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a5d4067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:12, skipping insertion in model container [2024-11-02 11:25:12,510 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:12" (1/1) ... [2024-11-02 11:25:12,553 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:25:12,817 WARN L251 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_481776d0-31a0-48bb-be30-ac79ae45da9f/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-59.i[913,926] [2024-11-02 11:25:12,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:25:12,936 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:25:12,978 WARN L251 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_481776d0-31a0-48bb-be30-ac79ae45da9f/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-59.i[913,926] [2024-11-02 11:25:13,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:25:13,061 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:25:13,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:13 WrapperNode [2024-11-02 11:25:13,062 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:25:13,064 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:25:13,064 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:25:13,064 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:25:13,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:13" (1/1) ... [2024-11-02 11:25:13,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:13" (1/1) ... [2024-11-02 11:25:13,140 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 133 [2024-11-02 11:25:13,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:25:13,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:25:13,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:25:13,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:25:13,159 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:13" (1/1) ... [2024-11-02 11:25:13,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:13" (1/1) ... [2024-11-02 11:25:13,164 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:13" (1/1) ... [2024-11-02 11:25:13,165 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:13" (1/1) ... [2024-11-02 11:25:13,178 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:13" (1/1) ... [2024-11-02 11:25:13,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:13" (1/1) ... [2024-11-02 11:25:13,189 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:13" (1/1) ... [2024-11-02 11:25:13,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:13" (1/1) ... [2024-11-02 11:25:13,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:25:13,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:25:13,206 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:25:13,206 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:25:13,207 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:13" (1/1) ... [2024-11-02 11:25:13,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:25:13,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:13,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:25:13,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:25:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:25:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 11:25:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 11:25:13,294 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 11:25:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:25:13,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:25:13,418 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:25:13,422 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:25:16,379 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-02 11:25:16,380 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:25:16,394 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:25:16,394 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 11:25:16,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:16 BoogieIcfgContainer [2024-11-02 11:25:16,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:25:16,398 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:25:16,398 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:25:16,401 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:25:16,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:25:12" (1/3) ... [2024-11-02 11:25:16,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327f74bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:25:16, skipping insertion in model container [2024-11-02 11:25:16,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:13" (2/3) ... [2024-11-02 11:25:16,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327f74bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:25:16, skipping insertion in model container [2024-11-02 11:25:16,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:16" (3/3) ... [2024-11-02 11:25:16,405 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-59.i [2024-11-02 11:25:16,423 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:25:16,423 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:25:16,498 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:25:16,505 INFO L333 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, 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;@60b8b471, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:25:16,505 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:25:16,510 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 38 states have (on average 1.394736842105263) internal successors, (53), 39 states have internal predecessors, (53), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-02 11:25:16,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-02 11:25:16,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:16,523 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:16,523 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:25:16,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:16,528 INFO L85 PathProgramCache]: Analyzing trace with hash -483950726, now seen corresponding path program 1 times [2024-11-02 11:25:16,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 11:25:16,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140514301] [2024-11-02 11:25:16,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:16,548 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 [2024-11-02 11:25:16,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 11:25:16,555 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 11:25:16,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:25:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:17,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 11:25:17,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:25:17,109 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-11-02 11:25:17,110 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:25:17,110 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 11:25:17,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140514301] [2024-11-02 11:25:17,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140514301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:17,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:25:17,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:25:17,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340075206] [2024-11-02 11:25:17,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:17,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 11:25:17,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 11:25:17,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 11:25:17,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 11:25:17,155 INFO L87 Difference]: Start difference. First operand has 61 states, 38 states have (on average 1.394736842105263) internal successors, (53), 39 states have internal predecessors, (53), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-02 11:25:17,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:17,194 INFO L93 Difference]: Finished difference Result 115 states and 200 transitions. [2024-11-02 11:25:17,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 11:25:17,196 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 126 [2024-11-02 11:25:17,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:17,207 INFO L225 Difference]: With dead ends: 115 [2024-11-02 11:25:17,207 INFO L226 Difference]: Without dead ends: 57 [2024-11-02 11:25:17,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 11:25:17,217 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:17,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 11:25:17,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-02 11:25:17,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-02 11:25:17,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 35 states have internal predecessors, (46), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-02 11:25:17,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 86 transitions. [2024-11-02 11:25:17,282 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 86 transitions. Word has length 126 [2024-11-02 11:25:17,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:17,284 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 86 transitions. [2024-11-02 11:25:17,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-02 11:25:17,285 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 86 transitions. [2024-11-02 11:25:17,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-02 11:25:17,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:17,293 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:17,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:25:17,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:25:17,498 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:25:17,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:17,500 INFO L85 PathProgramCache]: Analyzing trace with hash -709650890, now seen corresponding path program 1 times [2024-11-02 11:25:17,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 11:25:17,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978017456] [2024-11-02 11:25:17,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:17,505 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 [2024-11-02 11:25:17,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 11:25:17,508 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 11:25:17,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:25:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:17,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 11:25:17,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:25:17,974 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-02 11:25:17,975 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:25:17,975 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 11:25:17,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978017456] [2024-11-02 11:25:17,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978017456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:17,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:25:17,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:25:17,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871986905] [2024-11-02 11:25:17,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:17,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:25:17,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 11:25:17,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:25:17,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:25:17,980 INFO L87 Difference]: Start difference. First operand 57 states and 86 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-02 11:25:18,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:18,786 INFO L93 Difference]: Finished difference Result 134 states and 200 transitions. [2024-11-02 11:25:18,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:25:18,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 126 [2024-11-02 11:25:18,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:18,795 INFO L225 Difference]: With dead ends: 134 [2024-11-02 11:25:18,796 INFO L226 Difference]: Without dead ends: 80 [2024-11-02 11:25:18,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:25:18,798 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 29 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:18,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 174 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-02 11:25:18,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-02 11:25:18,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2024-11-02 11:25:18,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 53 states have internal predecessors, (70), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-02 11:25:18,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 114 transitions. [2024-11-02 11:25:18,833 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 114 transitions. Word has length 126 [2024-11-02 11:25:18,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:18,835 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 114 transitions. [2024-11-02 11:25:18,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-02 11:25:18,835 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 114 transitions. [2024-11-02 11:25:18,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-02 11:25:18,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:18,846 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:18,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:25:19,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:25:19,049 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:25:19,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:19,050 INFO L85 PathProgramCache]: Analyzing trace with hash 988947254, now seen corresponding path program 1 times [2024-11-02 11:25:19,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 11:25:19,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041789688] [2024-11-02 11:25:19,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:19,051 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 [2024-11-02 11:25:19,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 11:25:19,064 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 11:25:19,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:25:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:19,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 11:25:19,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:25:19,494 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-02 11:25:19,495 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:25:19,495 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 11:25:19,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041789688] [2024-11-02 11:25:19,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041789688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:19,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:25:19,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:25:19,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427892715] [2024-11-02 11:25:19,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:19,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:25:19,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 11:25:19,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:25:19,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:25:19,503 INFO L87 Difference]: Start difference. First operand 77 states and 114 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-02 11:25:20,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:20,093 INFO L93 Difference]: Finished difference Result 168 states and 247 transitions. [2024-11-02 11:25:20,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:25:20,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 127 [2024-11-02 11:25:20,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:20,102 INFO L225 Difference]: With dead ends: 168 [2024-11-02 11:25:20,102 INFO L226 Difference]: Without dead ends: 94 [2024-11-02 11:25:20,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:25:20,109 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 20 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:20,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 166 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-02 11:25:20,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-02 11:25:20,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 80. [2024-11-02 11:25:20,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 55 states have (on average 1.2727272727272727) internal successors, (70), 56 states have internal predecessors, (70), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-02 11:25:20,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2024-11-02 11:25:20,127 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 127 [2024-11-02 11:25:20,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:25:20,128 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2024-11-02 11:25:20,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-02 11:25:20,128 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2024-11-02 11:25:20,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-02 11:25:20,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:20,131 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:20,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:25:20,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:25:20,332 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:25:20,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:20,333 INFO L85 PathProgramCache]: Analyzing trace with hash -193170440, now seen corresponding path program 1 times [2024-11-02 11:25:20,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 11:25:20,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426636016] [2024-11-02 11:25:20,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:20,338 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 [2024-11-02 11:25:20,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 11:25:20,341 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 11:25:20,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481776d0-31a0-48bb-be30-ac79ae45da9f/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:25:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:20,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-02 11:25:20,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:25:23,597 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 435 proven. 114 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-11-02 11:25:23,597 INFO L311 TraceCheckSpWp]: Computing backward predicates...