./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-48.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-48.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX --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 3477469bfd81314cf7d649c8adcd7fe214dd2065383578e89ca0f01d8a450671 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:52:15,480 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:52:15,591 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:52:15,600 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:52:15,600 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:52:15,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:52:15,644 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:52:15,645 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:52:15,646 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:52:15,651 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:52:15,652 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:52:15,653 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:52:15,653 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:52:15,655 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:52:15,655 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:52:15,656 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:52:15,656 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:52:15,657 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:52:15,657 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:52:15,658 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:52:15,658 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:52:15,659 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:52:15,660 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:52:15,660 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:52:15,661 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:52:15,661 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:52:15,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:52:15,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:52:15,662 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:52:15,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:52:15,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:52:15,664 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:52:15,665 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:52:15,665 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:52:15,665 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:52:15,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:52:15,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:15,666 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:52:15,666 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:52:15,667 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:52:15,667 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:52:15,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:52:15,667 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:52:15,668 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:52:15,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:52:15,669 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_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3477469bfd81314cf7d649c8adcd7fe214dd2065383578e89ca0f01d8a450671 [2023-11-12 00:52:15,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:52:15,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:52:15,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:52:15,981 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:52:15,983 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:52:15,984 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-48.i [2023-11-12 00:52:19,317 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:52:19,530 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:52:19,530 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-48.i [2023-11-12 00:52:19,542 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/data/20ff694fb/914f0ebb172c4c11ba9622e425e2f69b/FLAG3e89ac0c1 [2023-11-12 00:52:19,557 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/data/20ff694fb/914f0ebb172c4c11ba9622e425e2f69b [2023-11-12 00:52:19,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:52:19,561 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:52:19,563 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:19,563 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:52:19,569 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:52:19,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,572 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a468236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19, skipping insertion in model container [2023-11-12 00:52:19,572 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,611 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:52:19,762 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-48.i[915,928] [2023-11-12 00:52:19,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:19,842 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:52:19,855 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-48.i[915,928] [2023-11-12 00:52:19,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:19,907 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:52:19,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19 WrapperNode [2023-11-12 00:52:19,908 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:19,909 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:19,909 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:52:19,910 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:52:19,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,927 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,971 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 143 [2023-11-12 00:52:19,981 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:19,982 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:52:19,983 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:52:19,983 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:52:19,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:20,011 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:20,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:20,023 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:20,027 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:20,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:20,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:20,043 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:52:20,045 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:52:20,045 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:52:20,045 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:52:20,046 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:20,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:20,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:52:20,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:52:20,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:52:20,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:52:20,137 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:52:20,137 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:52:20,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:52:20,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:52:20,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:52:20,279 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:52:20,281 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:52:20,656 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:52:20,886 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:52:20,886 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:52:20,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:20 BoogieIcfgContainer [2023-11-12 00:52:20,889 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:52:20,893 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:52:20,893 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:52:20,897 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:52:20,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:52:19" (1/3) ... [2023-11-12 00:52:20,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a15f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:20, skipping insertion in model container [2023-11-12 00:52:20,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (2/3) ... [2023-11-12 00:52:20,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a15f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:20, skipping insertion in model container [2023-11-12 00:52:20,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:20" (3/3) ... [2023-11-12 00:52:20,902 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-48.i [2023-11-12 00:52:20,923 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:52:20,923 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:52:20,992 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:52:20,999 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7294b6ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:52:20,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:52:21,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 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) [2023-11-12 00:52:21,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-12 00:52:21,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:21,014 INFO L195 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, 1] [2023-11-12 00:52:21,015 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:52:21,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:21,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1227563891, now seen corresponding path program 1 times [2023-11-12 00:52:21,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:52:21,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949480577] [2023-11-12 00:52:21,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:21,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:52:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:52:21,463 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:52:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:52:21,801 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:52:21,804 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:52:21,806 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:52:21,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:52:21,813 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:52:21,818 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:52:21,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:52:21 BoogieIcfgContainer [2023-11-12 00:52:21,915 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:52:21,915 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:52:21,915 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:52:21,916 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:52:21,916 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:20" (3/4) ... [2023-11-12 00:52:21,919 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:52:21,920 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:52:21,921 INFO L158 Benchmark]: Toolchain (without parser) took 2359.90ms. Allocated memory was 127.9MB in the beginning and 178.3MB in the end (delta: 50.3MB). Free memory was 82.4MB in the beginning and 131.4MB in the end (delta: -49.0MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2023-11-12 00:52:21,922 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 127.9MB. Free memory was 72.1MB in the beginning and 71.9MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:52:21,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.47ms. Allocated memory is still 127.9MB. Free memory was 82.0MB in the beginning and 68.0MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:52:21,924 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.63ms. Allocated memory is still 127.9MB. Free memory was 68.0MB in the beginning and 64.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:52:21,924 INFO L158 Benchmark]: Boogie Preprocessor took 61.27ms. Allocated memory is still 127.9MB. Free memory was 64.7MB in the beginning and 62.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:52:21,925 INFO L158 Benchmark]: RCFGBuilder took 844.78ms. Allocated memory was 127.9MB in the beginning and 178.3MB in the end (delta: 50.3MB). Free memory was 62.6MB in the beginning and 117.1MB in the end (delta: -54.5MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2023-11-12 00:52:21,926 INFO L158 Benchmark]: TraceAbstraction took 1021.65ms. Allocated memory is still 178.3MB. Free memory was 116.2MB in the beginning and 131.4MB in the end (delta: -15.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-12 00:52:21,926 INFO L158 Benchmark]: Witness Printer took 4.92ms. Allocated memory is still 178.3MB. Free memory is still 131.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:52:21,930 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 127.9MB. Free memory was 72.1MB in the beginning and 71.9MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.47ms. Allocated memory is still 127.9MB. Free memory was 82.0MB in the beginning and 68.0MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.63ms. Allocated memory is still 127.9MB. Free memory was 68.0MB in the beginning and 64.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.27ms. Allocated memory is still 127.9MB. Free memory was 64.7MB in the beginning and 62.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 844.78ms. Allocated memory was 127.9MB in the beginning and 178.3MB in the end (delta: 50.3MB). Free memory was 62.6MB in the beginning and 117.1MB in the end (delta: -54.5MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1021.65ms. Allocated memory is still 178.3MB. Free memory was 116.2MB in the beginning and 131.4MB in the end (delta: -15.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.92ms. Allocated memory is still 178.3MB. Free memory is still 131.4MB. 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 46. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 10; [L23] unsigned char var_1_2 = 1; [L24] double var_1_3 = 0.0; [L25] double var_1_4 = 128.2; [L26] double var_1_5 = 50.1; [L27] double var_1_6 = 64.5; [L28] unsigned short int var_1_7 = 1; [L29] unsigned char var_1_8 = 5; [L30] double var_1_9 = 15.35; [L31] unsigned char var_1_10 = 10; [L32] unsigned char var_1_11 = 2; [L33] signed long int var_1_12 = 32; [L34] signed long int var_1_13 = 256; [L35] signed char var_1_14 = 1; [L36] unsigned char var_1_15 = 128; [L37] unsigned char var_1_16 = 0; [L38] signed char var_1_17 = -64; [L39] unsigned short int var_1_18 = 64; [L40] unsigned char last_1_var_1_8 = 5; [L41] unsigned short int last_1_var_1_18 = 64; [L141] isInitial = 1 [L142] FCALL initially() [L143] COND TRUE 1 [L144] CALL updateLastVariables() [L133] last_1_var_1_8 = var_1_8 [L134] last_1_var_1_18 = var_1_18 [L144] RET updateLastVariables() [L145] CALL updateVariables() [L99] var_1_2 = __VERIFIER_nondet_uchar() [L100] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_3=0, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_3=0, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L101] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=0, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=0, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L102] var_1_3 = __VERIFIER_nondet_double() [L103] CALL assume_abort_if_not((var_1_3 >= 4611686.018427387900e+12F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not((var_1_3 >= 4611686.018427387900e+12F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L104] var_1_4 = __VERIFIER_nondet_double() [L105] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427387900e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427387900e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L106] var_1_5 = __VERIFIER_nondet_double() [L107] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L108] var_1_6 = __VERIFIER_nondet_double() [L109] CALL assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=1, var_1_8=5, var_1_9=307/20] [L110] var_1_7 = __VERIFIER_nondet_ushort() [L111] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=307/20] [L112] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=307/20] [L113] var_1_9 = __VERIFIER_nondet_double() [L114] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L115] CALL assume_abort_if_not(var_1_9 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_9 != 0.0F) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L116] var_1_10 = __VERIFIER_nondet_uchar() [L117] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L118] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L119] var_1_11 = __VERIFIER_nondet_uchar() [L120] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L121] CALL assume_abort_if_not(var_1_11 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not(var_1_11 <= 254) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L122] var_1_15 = __VERIFIER_nondet_uchar() [L123] CALL assume_abort_if_not(var_1_15 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L20] COND FALSE !(!cond) [L123] RET assume_abort_if_not(var_1_15 >= 127) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L124] CALL assume_abort_if_not(var_1_15 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L20] COND FALSE !(!cond) [L124] RET assume_abort_if_not(var_1_15 <= 255) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L125] var_1_16 = __VERIFIER_nondet_uchar() [L126] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=94, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L20] COND FALSE !(!cond) [L126] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=94, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L127] CALL assume_abort_if_not(var_1_16 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=94, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L20] COND FALSE !(!cond) [L127] RET assume_abort_if_not(var_1_16 <= 127) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=94, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L128] var_1_17 = __VERIFIER_nondet_char() [L129] CALL assume_abort_if_not(var_1_17 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=94, var_1_17=0, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L20] COND FALSE !(!cond) [L129] RET assume_abort_if_not(var_1_17 >= -126) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=94, var_1_17=0, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L130] CALL assume_abort_if_not(var_1_17 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=94, var_1_17=0, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L20] COND FALSE !(!cond) [L130] RET assume_abort_if_not(var_1_17 <= 126) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=127, var_1_16=94, var_1_17=0, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=5, var_1_9=32774] [L145] RET updateVariables() [L146] CALL step() [L45] COND TRUE \read(var_1_2) [L46] COND FALSE !(((var_1_3 - var_1_4) - var_1_5) == (15.75 - var_1_6)) [L49] var_1_1 = last_1_var_1_8 [L54] unsigned short int stepLocal_0 = var_1_1; [L55] COND TRUE var_1_6 > (var_1_5 / ((((var_1_3) > (var_1_9)) ? (var_1_3) : (var_1_9)))) [L56] var_1_8 = ((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) [L64] COND TRUE \read(var_1_2) [L65] COND FALSE !(-128 > var_1_10) [L75] signed long int stepLocal_1 = ((((var_1_15 - var_1_16)) > (var_1_12)) ? ((var_1_15 - var_1_16)) : (var_1_12)); [L76] COND TRUE var_1_10 == stepLocal_1 [L77] var_1_14 = ((((var_1_17) < 0 ) ? -(var_1_17) : (var_1_17))) [L81] COND TRUE \read(var_1_2) [L82] var_1_13 = var_1_11 [L84] COND TRUE var_1_8 == var_1_13 [L85] var_1_18 = (var_1_10 + ((((var_1_14) < (var_1_16)) ? (var_1_14) : (var_1_16)))) [L146] RET step() [L147] CALL, EXPR property() [L137-L138] return (((((var_1_2 ? ((((var_1_3 - var_1_4) - var_1_5) == (15.75 - var_1_6)) ? (var_1_1 == ((unsigned short int) (5 + last_1_var_1_8))) : (var_1_1 == ((unsigned short int) last_1_var_1_8))) : (var_1_1 == ((unsigned short int) 1))) && ((var_1_6 > (var_1_5 / ((((var_1_3) > (var_1_9)) ? (var_1_3) : (var_1_9))))) ? (var_1_8 == ((unsigned char) ((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))))) : ((var_1_1 <= var_1_7) ? (var_1_8 == ((unsigned char) var_1_10)) : (var_1_8 == ((unsigned char) var_1_11))))) && (var_1_2 ? ((-128 > var_1_10) ? ((var_1_3 >= (2.75 / var_1_9)) ? (var_1_12 == ((signed long int) (var_1_11 + (last_1_var_1_18 + var_1_10)))) : (var_1_12 == ((signed long int) last_1_var_1_18))) : 1) : (var_1_12 == ((signed long int) last_1_var_1_18)))) && (var_1_2 ? (var_1_13 == ((signed long int) var_1_11)) : 1)) && ((var_1_10 == (((((var_1_15 - var_1_16)) > (var_1_12)) ? ((var_1_15 - var_1_16)) : (var_1_12)))) ? (var_1_14 == ((signed char) ((((var_1_17) < 0 ) ? -(var_1_17) : (var_1_17))))) : (var_1_14 == ((signed char) var_1_17)))) && ((var_1_8 == var_1_13) ? (var_1_18 == ((unsigned short int) (var_1_10 + ((((var_1_14) < (var_1_16)) ? (var_1_14) : (var_1_16)))))) : ((last_1_var_1_18 != var_1_16) ? ((-256 >= var_1_13) ? (var_1_18 == ((unsigned short int) var_1_16)) : (var_1_18 == ((unsigned short int) var_1_15))) : (var_1_18 == ((unsigned short int) var_1_10)))) ; [L147] RET, EXPR property() [L147] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=33, var_1_14=0, var_1_15=127, var_1_16=94, var_1_17=0, var_1_18=33, var_1_1=5, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=33, var_1_9=32774] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=33, var_1_11=33, var_1_12=32, var_1_13=33, var_1_14=0, var_1_15=127, var_1_16=94, var_1_17=0, var_1_18=33, var_1_1=5, var_1_2=1, var_1_3=32775, var_1_4=32773, var_1_5=32776, var_1_6=32772, var_1_7=32767, var_1_8=33, var_1_9=32774] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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=41occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 00:52:21,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-48.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX --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 3477469bfd81314cf7d649c8adcd7fe214dd2065383578e89ca0f01d8a450671 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:52:24,799 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:52:24,936 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:52:24,944 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:52:24,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:52:24,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:52:24,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:52:24,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:52:24,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:52:24,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:52:24,998 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:52:24,998 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:52:24,999 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:52:25,000 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:52:25,002 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:52:25,002 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:52:25,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:52:25,004 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:52:25,004 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:52:25,005 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:52:25,005 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:52:25,005 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:52:25,006 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:52:25,006 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:52:25,007 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:52:25,007 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:52:25,008 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:52:25,008 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:52:25,008 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:52:25,009 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:52:25,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:52:25,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:52:25,011 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:52:25,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:25,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:52:25,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:52:25,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:52:25,012 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:52:25,013 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:52:25,014 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:52:25,014 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:52:25,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:52:25,014 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_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3477469bfd81314cf7d649c8adcd7fe214dd2065383578e89ca0f01d8a450671 [2023-11-12 00:52:25,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:52:25,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:52:25,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:52:25,421 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:52:25,421 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:52:25,423 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-48.i [2023-11-12 00:52:28,454 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:52:28,806 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:52:28,807 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-48.i [2023-11-12 00:52:28,819 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/data/45f0c4974/914c17a5ac5042f0826eb99723b381f4/FLAG1229ec37e [2023-11-12 00:52:28,834 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/data/45f0c4974/914c17a5ac5042f0826eb99723b381f4 [2023-11-12 00:52:28,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:52:28,839 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:52:28,840 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:28,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:52:28,847 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:52:28,848 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:28" (1/1) ... [2023-11-12 00:52:28,849 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@684c3fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:28, skipping insertion in model container [2023-11-12 00:52:28,849 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:28" (1/1) ... [2023-11-12 00:52:28,896 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:52:29,093 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-48.i[915,928] [2023-11-12 00:52:29,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:29,245 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:52:29,287 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-48.i[915,928] [2023-11-12 00:52:29,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:29,402 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:52:29,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:29 WrapperNode [2023-11-12 00:52:29,403 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:29,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:29,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:52:29,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:52:29,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:29" (1/1) ... [2023-11-12 00:52:29,441 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:29" (1/1) ... [2023-11-12 00:52:29,492 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 142 [2023-11-12 00:52:29,494 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:29,495 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:52:29,496 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:52:29,496 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:52:29,507 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:29" (1/1) ... [2023-11-12 00:52:29,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:29" (1/1) ... [2023-11-12 00:52:29,533 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:29" (1/1) ... [2023-11-12 00:52:29,533 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:29" (1/1) ... [2023-11-12 00:52:29,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:29" (1/1) ... [2023-11-12 00:52:29,566 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:29" (1/1) ... [2023-11-12 00:52:29,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:29" (1/1) ... [2023-11-12 00:52:29,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:29" (1/1) ... [2023-11-12 00:52:29,590 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:52:29,591 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:52:29,591 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:52:29,598 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:52:29,599 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:29" (1/1) ... [2023-11-12 00:52:29,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:29,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:52:29,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:52:29,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:52:29,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:52:29,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:52:29,697 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:52:29,698 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:52:29,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:52:29,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:52:29,832 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:52:29,834 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:52:44,928 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:52:44,937 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:52:44,938 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:52:44,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:44 BoogieIcfgContainer [2023-11-12 00:52:44,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:52:44,944 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:52:44,944 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:52:44,948 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:52:44,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:52:28" (1/3) ... [2023-11-12 00:52:44,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67575d98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:44, skipping insertion in model container [2023-11-12 00:52:44,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:29" (2/3) ... [2023-11-12 00:52:44,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67575d98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:44, skipping insertion in model container [2023-11-12 00:52:44,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:44" (3/3) ... [2023-11-12 00:52:44,952 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-48.i [2023-11-12 00:52:44,984 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:52:44,984 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:52:45,039 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:52:45,046 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@364ba66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:52:45,046 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:52:45,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 43 states have internal predecessors, (59), 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) [2023-11-12 00:52:45,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-12 00:52:45,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:45,066 INFO L195 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, 1, 1] [2023-11-12 00:52:45,067 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:52:45,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:45,074 INFO L85 PathProgramCache]: Analyzing trace with hash 469945194, now seen corresponding path program 1 times [2023-11-12 00:52:45,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:52:45,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989057442] [2023-11-12 00:52:45,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:45,098 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:52:45,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:52:45,100 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:52:45,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 00:52:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:47,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:52:47,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:52:47,469 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2023-11-12 00:52:47,476 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:52:47,477 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:52:47,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989057442] [2023-11-12 00:52:47,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1989057442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:47,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:47,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:52:47,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830789077] [2023-11-12 00:52:47,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:47,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:52:47,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:52:47,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:52:47,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:52:47,536 INFO L87 Difference]: Start difference. First operand has 65 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 43 states have internal predecessors, (59), 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 18.0) internal successors, (36), 2 states have internal predecessors, (36), 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) [2023-11-12 00:52:47,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:47,577 INFO L93 Difference]: Finished difference Result 122 states and 210 transitions. [2023-11-12 00:52:47,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:52:47,579 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 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 129 [2023-11-12 00:52:47,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:47,587 INFO L225 Difference]: With dead ends: 122 [2023-11-12 00:52:47,587 INFO L226 Difference]: Without dead ends: 60 [2023-11-12 00:52:47,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:52:47,596 INFO L413 NwaCegarLoop]: 89 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, 89 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 [2023-11-12 00:52:47,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:52:47,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-12 00:52:47,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-11-12 00:52:47,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 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) [2023-11-12 00:52:47,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 89 transitions. [2023-11-12 00:52:47,697 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 89 transitions. Word has length 129 [2023-11-12 00:52:47,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:47,699 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 89 transitions. [2023-11-12 00:52:47,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 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) [2023-11-12 00:52:47,700 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 89 transitions. [2023-11-12 00:52:47,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-12 00:52:47,714 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:47,715 INFO L195 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, 1, 1] [2023-11-12 00:52:47,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:52:47,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:52:47,931 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:52:47,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:47,932 INFO L85 PathProgramCache]: Analyzing trace with hash 890885746, now seen corresponding path program 1 times [2023-11-12 00:52:47,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:52:47,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409065463] [2023-11-12 00:52:47,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:47,933 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:52:47,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:52:47,936 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:52:47,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-12 00:52:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:50,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 00:52:50,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:52:50,180 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-12 00:52:50,180 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:52:50,181 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:52:50,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409065463] [2023-11-12 00:52:50,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409065463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:50,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:50,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:52:50,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090597212] [2023-11-12 00:52:50,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:50,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:52:50,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:52:50,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:52:50,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:52:50,186 INFO L87 Difference]: Start difference. First operand 60 states and 89 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2023-11-12 00:52:53,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:52:55,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:52:56,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:56,443 INFO L93 Difference]: Finished difference Result 135 states and 201 transitions. [2023-11-12 00:52:56,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:52:56,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 129 [2023-11-12 00:52:56,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:56,453 INFO L225 Difference]: With dead ends: 135 [2023-11-12 00:52:56,453 INFO L226 Difference]: Without dead ends: 78 [2023-11-12 00:52:56,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:52:56,456 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 20 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:56,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 167 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2023-11-12 00:52:56,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-12 00:52:56,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 67. [2023-11-12 00:52:56,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 45 states have internal predecessors, (59), 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) [2023-11-12 00:52:56,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 99 transitions. [2023-11-12 00:52:56,481 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 99 transitions. Word has length 129 [2023-11-12 00:52:56,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:56,484 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 99 transitions. [2023-11-12 00:52:56,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2023-11-12 00:52:56,484 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 99 transitions. [2023-11-12 00:52:56,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-12 00:52:56,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:56,487 INFO L195 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, 1, 1] [2023-11-12 00:52:56,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-12 00:52:56,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:52:56,691 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:52:56,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:56,692 INFO L85 PathProgramCache]: Analyzing trace with hash 948144048, now seen corresponding path program 1 times [2023-11-12 00:52:56,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:52:56,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12236081] [2023-11-12 00:52:56,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:56,693 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:52:56,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:52:56,695 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:52:56,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-12 00:52:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:58,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 00:52:58,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:53:01,805 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-12 00:53:01,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:53:01,805 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:53:01,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12236081] [2023-11-12 00:53:01,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12236081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:01,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:01,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:53:01,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937873809] [2023-11-12 00:53:01,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:01,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:53:01,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:53:01,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:53:01,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:53:01,810 INFO L87 Difference]: Start difference. First operand 67 states and 99 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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) [2023-11-12 00:53:05,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:53:09,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:53:10,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:10,264 INFO L93 Difference]: Finished difference Result 195 states and 291 transitions. [2023-11-12 00:53:10,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:53:10,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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 129 [2023-11-12 00:53:10,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:53:10,278 INFO L225 Difference]: With dead ends: 195 [2023-11-12 00:53:10,281 INFO L226 Difference]: Without dead ends: 131 [2023-11-12 00:53:10,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:53:10,286 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 19 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:53:10,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 167 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2023-11-12 00:53:10,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-11-12 00:53:10,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2023-11-12 00:53:10,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 86 states have (on average 1.302325581395349) internal successors, (112), 86 states have internal predecessors, (112), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-12 00:53:10,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 192 transitions. [2023-11-12 00:53:10,330 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 192 transitions. Word has length 129 [2023-11-12 00:53:10,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:53:10,331 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 192 transitions. [2023-11-12 00:53:10,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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) [2023-11-12 00:53:10,332 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 192 transitions. [2023-11-12 00:53:10,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-12 00:53:10,337 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:10,338 INFO L195 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, 1, 1, 1] [2023-11-12 00:53:10,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/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)] Forceful destruction successful, exit code 0 [2023-11-12 00:53:10,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:53:10,552 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:53:10,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:10,553 INFO L85 PathProgramCache]: Analyzing trace with hash -616956723, now seen corresponding path program 1 times [2023-11-12 00:53:10,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:53:10,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811518953] [2023-11-12 00:53:10,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:10,554 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:53:10,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:53:10,563 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:53:10,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1366630-3a2f-44ba-9670-9326e00dd607/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-12 00:53:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:12,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-12 00:53:12,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:53:22,156 WARN L293 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)