./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-23.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-23.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E --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 a2911b8889dd63413414f522ab20bad4acbdc28dfebaab4294bb46a3c6eab490 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:29:36,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:29:36,660 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:29:36,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:29:36,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:29:36,717 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:29:36,718 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:29:36,719 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:29:36,719 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:29:36,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:29:36,720 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:29:36,720 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:29:36,721 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:29:36,721 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:29:36,721 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:29:36,721 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:29:36,723 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:29:36,723 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:29:36,723 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:29:36,723 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:29:36,724 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:29:36,724 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:29:36,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:29:36,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:29:36,725 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:29:36,725 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:29:36,725 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:29:36,725 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:29:36,725 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:29:36,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:29:36,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:29:36,725 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:29:36,725 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:29:36,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:29:36,726 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:29:36,726 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:29:36,726 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:29:36,726 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:29:36,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:29:36,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:29:36,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:29:36,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:29:36,728 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:29:36,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:29:36,729 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:29:36,729 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:29:36,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:29:36,729 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E 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 -> a2911b8889dd63413414f522ab20bad4acbdc28dfebaab4294bb46a3c6eab490 [2024-11-14 05:29:37,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:29:37,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:29:37,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:29:37,150 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:29:37,150 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:29:37,152 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-23.i Unable to find full path for "g++" [2024-11-14 05:29:39,540 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:29:40,037 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:29:40,038 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-23.i [2024-11-14 05:29:40,050 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/data/dfebebfd2/f010da8d8f5b49e3a4b57b89ccb26c6e/FLAG2ed73770b [2024-11-14 05:29:40,071 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/data/dfebebfd2/f010da8d8f5b49e3a4b57b89ccb26c6e [2024-11-14 05:29:40,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:29:40,077 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:29:40,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:29:40,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:29:40,086 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:29:40,087 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:29:40" (1/1) ... [2024-11-14 05:29:40,089 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3545f2a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:40, skipping insertion in model container [2024-11-14 05:29:40,089 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:29:40" (1/1) ... [2024-11-14 05:29:40,120 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:29:40,359 WARN L250 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_8852b25b-03cc-4578-a2f1-648626bf79f0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-23.i[916,929] [2024-11-14 05:29:40,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:29:40,525 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:29:40,541 WARN L250 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_8852b25b-03cc-4578-a2f1-648626bf79f0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-23.i[916,929] [2024-11-14 05:29:40,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:29:40,677 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:29:40,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:40 WrapperNode [2024-11-14 05:29:40,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:29:40,680 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:29:40,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:29:40,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:29:40,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:40" (1/1) ... [2024-11-14 05:29:40,716 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:40" (1/1) ... [2024-11-14 05:29:40,801 INFO L138 Inliner]: procedures = 29, calls = 180, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 538 [2024-11-14 05:29:40,801 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:29:40,802 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:29:40,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:29:40,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:29:40,817 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:40" (1/1) ... [2024-11-14 05:29:40,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:40" (1/1) ... [2024-11-14 05:29:40,826 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:40" (1/1) ... [2024-11-14 05:29:40,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:40" (1/1) ... [2024-11-14 05:29:40,851 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:40" (1/1) ... [2024-11-14 05:29:40,857 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:40" (1/1) ... [2024-11-14 05:29:40,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:40" (1/1) ... [2024-11-14 05:29:40,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:40" (1/1) ... [2024-11-14 05:29:40,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:29:40,874 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:29:40,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:29:40,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:29:40,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:40" (1/1) ... [2024-11-14 05:29:40,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:29:40,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:29:40,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:29:40,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:29:40,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:29:40,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-14 05:29:40,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:29:40,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-14 05:29:40,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:29:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-14 05:29:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:29:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:29:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:29:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:29:40,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:29:41,182 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:29:41,185 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:29:42,020 INFO L? ?]: Removed 148 outVars from TransFormulas that were not future-live. [2024-11-14 05:29:42,022 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:29:42,811 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:29:42,812 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:29:42,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:29:42 BoogieIcfgContainer [2024-11-14 05:29:42,814 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:29:42,817 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:29:42,817 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:29:42,823 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:29:42,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:29:40" (1/3) ... [2024-11-14 05:29:42,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3992f353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:29:42, skipping insertion in model container [2024-11-14 05:29:42,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:40" (2/3) ... [2024-11-14 05:29:42,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3992f353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:29:42, skipping insertion in model container [2024-11-14 05:29:42,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:29:42" (3/3) ... [2024-11-14 05:29:42,829 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-23.i [2024-11-14 05:29:42,851 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:29:42,854 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-23.i that has 2 procedures, 49 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:29:42,938 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:29:42,958 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5405662f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:29:42,959 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:29:42,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:29:42,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 05:29:42,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:29:42,978 INFO L215 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:29:42,979 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:29:42,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:29:42,987 INFO L85 PathProgramCache]: Analyzing trace with hash 918104055, now seen corresponding path program 1 times [2024-11-14 05:29:42,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:29:42,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684990135] [2024-11-14 05:29:42,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:29:42,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:29:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:29:46,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1361846015] [2024-11-14 05:29:46,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:29:46,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:29:46,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:29:46,163 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:29:46,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:29:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:29:47,819 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:29:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:29:48,882 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:29:48,885 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:29:48,887 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:29:48,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:29:49,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 05:29:49,096 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 05:29:49,227 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:29:49,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:29:49 BoogieIcfgContainer [2024-11-14 05:29:49,238 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:29:49,239 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:29:49,239 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:29:49,240 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:29:49,241 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:29:42" (3/4) ... [2024-11-14 05:29:49,244 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 05:29:49,245 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:29:49,250 INFO L158 Benchmark]: Toolchain (without parser) took 9170.52ms. Allocated memory was 142.6MB in the beginning and 226.5MB in the end (delta: 83.9MB). Free memory was 118.9MB in the beginning and 144.1MB in the end (delta: -25.2MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. [2024-11-14 05:29:49,254 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 142.6MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:29:49,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 600.42ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 102.6MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:29:49,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.64ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 98.8MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:29:49,256 INFO L158 Benchmark]: Boogie Preprocessor took 70.60ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 95.7MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:29:49,256 INFO L158 Benchmark]: RCFGBuilder took 1940.36ms. Allocated memory is still 142.6MB. Free memory was 95.5MB in the beginning and 67.8MB in the end (delta: 27.7MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2024-11-14 05:29:49,257 INFO L158 Benchmark]: TraceAbstraction took 6421.21ms. Allocated memory was 142.6MB in the beginning and 226.5MB in the end (delta: 83.9MB). Free memory was 67.1MB in the beginning and 144.1MB in the end (delta: -77.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-11-14 05:29:49,257 INFO L158 Benchmark]: Witness Printer took 6.52ms. Allocated memory is still 226.5MB. Free memory was 144.1MB in the beginning and 144.1MB in the end (delta: 29.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:29:49,263 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 142.6MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 600.42ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 102.6MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.64ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 98.8MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.60ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 95.7MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1940.36ms. Allocated memory is still 142.6MB. Free memory was 95.5MB in the beginning and 67.8MB in the end (delta: 27.7MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6421.21ms. Allocated memory was 142.6MB in the beginning and 226.5MB in the end (delta: 83.9MB). Free memory was 67.1MB in the beginning and 144.1MB in the end (delta: -77.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Witness Printer took 6.52ms. Allocated memory is still 226.5MB. Free memory was 144.1MB in the beginning and 144.1MB in the end (delta: 29.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 61, overapproximation of someBinaryFLOATComparisonOperation at line 65, overapproximation of someBinaryFLOATComparisonOperation at line 67, overapproximation of someBinaryFLOATComparisonOperation at line 63, overapproximation of someBinaryFLOATComparisonOperation at line 70, overapproximation of someBinaryFLOATComparisonOperation at line 35, overapproximation of someBinaryFLOATComparisonOperation at line 68. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][2] = { {0, 0}, {0, 0} }; [L25-L27] float float_Array_0[5] = { 1.75, 9.75, 1.4, 999.7, 1.2 }; [L28-L30] unsigned long int unsigned_long_int_Array_0[2][2][2] = { {{1394088949, 25}, {16, 16}}, {{0, 64}, {1277342739, 0}} }; [L94] isInitial = 1 [L95] FCALL initially() [L96] COND TRUE 1 [L97] FCALL updateLastVariables() [L98] CALL updateVariables() [L54] BOOL_unsigned_char_Array_0[0][0] = __VERIFIER_nondet_uchar() [L55] EXPR BOOL_unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L55] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0][0] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L55] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0][0] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L56] EXPR BOOL_unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L56] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0][0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L56] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0][0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L57] BOOL_unsigned_char_Array_0[1][1] = __VERIFIER_nondet_uchar() [L58] EXPR BOOL_unsigned_char_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L58] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L58] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L59] EXPR BOOL_unsigned_char_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L59] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][1] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L59] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][1] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L60] float_Array_0[0] = __VERIFIER_nondet_float() [L61] EXPR float_Array_0[0] [L61] EXPR float_Array_0[0] >= 0.0F && float_Array_0[0] <= -1.0e-20F [L61] EXPR float_Array_0[0] [L61] EXPR float_Array_0[0] >= 0.0F && float_Array_0[0] <= -1.0e-20F [L61] EXPR (float_Array_0[0] >= 0.0F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L61] CALL assume_abort_if_not((float_Array_0[0] >= 0.0F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not((float_Array_0[0] >= 0.0F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L62] float_Array_0[1] = __VERIFIER_nondet_float() [L63] EXPR float_Array_0[1] [L63] EXPR float_Array_0[1] >= 0.0F && float_Array_0[1] <= -1.0e-20F [L63] EXPR float_Array_0[1] [L63] EXPR float_Array_0[1] >= 0.0F && float_Array_0[1] <= -1.0e-20F [L63] EXPR (float_Array_0[1] >= 0.0F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854776000e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L63] CALL assume_abort_if_not((float_Array_0[1] >= 0.0F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854776000e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not((float_Array_0[1] >= 0.0F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854776000e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L64] float_Array_0[2] = __VERIFIER_nondet_float() [L65] EXPR float_Array_0[2] [L65] EXPR float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F [L65] EXPR (float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F) || (float_Array_0[2] <= 9223372.036854776000e+12F && float_Array_0[2] >= 1.0e-20F ) [L65] EXPR float_Array_0[2] [L65] EXPR float_Array_0[2] <= 9223372.036854776000e+12F && float_Array_0[2] >= 1.0e-20F [L65] EXPR float_Array_0[2] [L65] EXPR float_Array_0[2] <= 9223372.036854776000e+12F && float_Array_0[2] >= 1.0e-20F [L65] EXPR (float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F) || (float_Array_0[2] <= 9223372.036854776000e+12F && float_Array_0[2] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L65] CALL assume_abort_if_not((float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F) || (float_Array_0[2] <= 9223372.036854776000e+12F && float_Array_0[2] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not((float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F) || (float_Array_0[2] <= 9223372.036854776000e+12F && float_Array_0[2] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L66] float_Array_0[3] = __VERIFIER_nondet_float() [L67] EXPR float_Array_0[3] [L67] EXPR float_Array_0[3] >= -922337.2036854776000e+13F && float_Array_0[3] <= -1.0e-20F [L67] EXPR (float_Array_0[3] >= -922337.2036854776000e+13F && float_Array_0[3] <= -1.0e-20F) || (float_Array_0[3] <= 9223372.036854776000e+12F && float_Array_0[3] >= 1.0e-20F ) [L67] EXPR float_Array_0[3] [L67] EXPR float_Array_0[3] <= 9223372.036854776000e+12F && float_Array_0[3] >= 1.0e-20F [L67] EXPR float_Array_0[3] [L67] EXPR float_Array_0[3] <= 9223372.036854776000e+12F && float_Array_0[3] >= 1.0e-20F [L67] EXPR (float_Array_0[3] >= -922337.2036854776000e+13F && float_Array_0[3] <= -1.0e-20F) || (float_Array_0[3] <= 9223372.036854776000e+12F && float_Array_0[3] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L67] CALL assume_abort_if_not((float_Array_0[3] >= -922337.2036854776000e+13F && float_Array_0[3] <= -1.0e-20F) || (float_Array_0[3] <= 9223372.036854776000e+12F && float_Array_0[3] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not((float_Array_0[3] >= -922337.2036854776000e+13F && float_Array_0[3] <= -1.0e-20F) || (float_Array_0[3] <= 9223372.036854776000e+12F && float_Array_0[3] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L68] EXPR float_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L68] CALL assume_abort_if_not(float_Array_0[3] != 0.0F) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(float_Array_0[3] != 0.0F) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L69] float_Array_0[4] = __VERIFIER_nondet_float() [L70] EXPR float_Array_0[4] [L70] EXPR float_Array_0[4] >= -922337.2036854776000e+13F && float_Array_0[4] <= -1.0e-20F [L70] EXPR float_Array_0[4] [L70] EXPR float_Array_0[4] >= -922337.2036854776000e+13F && float_Array_0[4] <= -1.0e-20F [L70] EXPR (float_Array_0[4] >= -922337.2036854776000e+13F && float_Array_0[4] <= -1.0e-20F) || (float_Array_0[4] <= 9223372.036854776000e+12F && float_Array_0[4] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L70] CALL assume_abort_if_not((float_Array_0[4] >= -922337.2036854776000e+13F && float_Array_0[4] <= -1.0e-20F) || (float_Array_0[4] <= 9223372.036854776000e+12F && float_Array_0[4] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not((float_Array_0[4] >= -922337.2036854776000e+13F && float_Array_0[4] <= -1.0e-20F) || (float_Array_0[4] <= 9223372.036854776000e+12F && float_Array_0[4] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L71] unsigned_long_int_Array_0[0][0][0] = __VERIFIER_nondet_ulong() [L72] EXPR unsigned_long_int_Array_0[0][0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L72] CALL assume_abort_if_not(unsigned_long_int_Array_0[0][0][0] >= 1073741824) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(unsigned_long_int_Array_0[0][0][0] >= 1073741824) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L73] EXPR unsigned_long_int_Array_0[0][0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L73] CALL assume_abort_if_not(unsigned_long_int_Array_0[0][0][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(unsigned_long_int_Array_0[0][0][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L74] unsigned_long_int_Array_0[1][0][0] = __VERIFIER_nondet_ulong() [L75] EXPR unsigned_long_int_Array_0[1][0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L75] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(unsigned_long_int_Array_0[1][0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L76] EXPR unsigned_long_int_Array_0[1][0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L76] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][0][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(unsigned_long_int_Array_0[1][0][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L77] unsigned_long_int_Array_0[1][1][0] = __VERIFIER_nondet_ulong() [L78] EXPR unsigned_long_int_Array_0[1][1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L78] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][1][0] >= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(unsigned_long_int_Array_0[1][1][0] >= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L79] EXPR unsigned_long_int_Array_0[1][1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L79] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][1][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(unsigned_long_int_Array_0[1][1][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L80] unsigned_long_int_Array_0[1][0][1] = __VERIFIER_nondet_ulong() [L81] EXPR unsigned_long_int_Array_0[1][0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L81] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(unsigned_long_int_Array_0[1][0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L82] EXPR unsigned_long_int_Array_0[1][0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L82] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][0][1] <= 4294967294) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(unsigned_long_int_Array_0[1][0][1] <= 4294967294) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L83] unsigned_long_int_Array_0[0][1][1] = __VERIFIER_nondet_ulong() [L84] EXPR unsigned_long_int_Array_0[0][1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L84] CALL assume_abort_if_not(unsigned_long_int_Array_0[0][1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(unsigned_long_int_Array_0[0][1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L85] EXPR unsigned_long_int_Array_0[0][1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L85] CALL assume_abort_if_not(unsigned_long_int_Array_0[0][1][1] <= 4294967294) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(unsigned_long_int_Array_0[0][1][1] <= 4294967294) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L98] RET updateVariables() [L99] CALL step() [L34] EXPR unsigned_long_int_Array_0[0][1][1] [L34] EXPR unsigned_long_int_Array_0[1][0][1] [L34] EXPR ((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]) [L34] EXPR unsigned_long_int_Array_0[0][1][1] [L34] EXPR ((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]) [L34] unsigned_long_int_Array_0[1][1][1] = ((((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]))) [L35] EXPR float_Array_0[4] [L35] EXPR float_Array_0[3] [L35] EXPR float_Array_0[2] [L35] EXPR float_Array_0[1] [L35] EXPR float_Array_0[0] [L35] COND FALSE !((float_Array_0[4] / float_Array_0[3]) <= (float_Array_0[2] + (float_Array_0[1] - float_Array_0[0]))) [L38] EXPR unsigned_long_int_Array_0[0][1][1] [L38] EXPR unsigned_long_int_Array_0[1][1][0] [L38] EXPR unsigned_long_int_Array_0[0][0][0] [L38] EXPR unsigned_long_int_Array_0[1][0][0] [L38] EXPR ((unsigned_long_int_Array_0[0][1][1]) > (((unsigned_long_int_Array_0[1][1][0] + unsigned_long_int_Array_0[0][0][0]) - unsigned_long_int_Array_0[1][0][0]))) ? (unsigned_long_int_Array_0[0][1][1]) : (((unsigned_long_int_Array_0[1][1][0] + unsigned_long_int_Array_0[0][0][0]) - unsigned_long_int_Array_0[1][0][0])) [L38] EXPR unsigned_long_int_Array_0[1][1][0] [L38] EXPR unsigned_long_int_Array_0[0][0][0] [L38] EXPR unsigned_long_int_Array_0[1][0][0] [L38] EXPR ((unsigned_long_int_Array_0[0][1][1]) > (((unsigned_long_int_Array_0[1][1][0] + unsigned_long_int_Array_0[0][0][0]) - unsigned_long_int_Array_0[1][0][0]))) ? (unsigned_long_int_Array_0[0][1][1]) : (((unsigned_long_int_Array_0[1][1][0] + unsigned_long_int_Array_0[0][0][0]) - unsigned_long_int_Array_0[1][0][0])) [L38] unsigned_long_int_Array_0[0][1][0] = ((((unsigned_long_int_Array_0[0][1][1]) > (((unsigned_long_int_Array_0[1][1][0] + unsigned_long_int_Array_0[0][0][0]) - unsigned_long_int_Array_0[1][0][0]))) ? (unsigned_long_int_Array_0[0][1][1]) : (((unsigned_long_int_Array_0[1][1][0] + unsigned_long_int_Array_0[0][0][0]) - unsigned_long_int_Array_0[1][0][0])))) [L39] EXPR float_Array_0[4] [L39] unsigned char stepLocal_0 = (- float_Array_0[4]) != 1.9f; [L40] stepLocal_0 || ((unsigned_long_int_Array_0[0][0][1] * unsigned_long_int_Array_0[1][0][0]) < unsigned_long_int_Array_0[1][0][1]) [L40] COND TRUE stepLocal_0 || ((unsigned_long_int_Array_0[0][0][1] * unsigned_long_int_Array_0[1][0][0]) < unsigned_long_int_Array_0[1][0][1]) [L41] EXPR BOOL_unsigned_char_Array_0[1][1] [L41] BOOL_unsigned_char_Array_0[0][1] = (! BOOL_unsigned_char_Array_0[1][1]) [L45] BOOL_unsigned_char_Array_0[0][1] [L45] COND TRUE BOOL_unsigned_char_Array_0[0][1] [L46] EXPR float_Array_0[4] [L46] EXPR float_Array_0[3] [L46] EXPR float_Array_0[1] [L46] EXPR float_Array_0[0] [L46] COND TRUE ! ((float_Array_0[4] / float_Array_0[3]) < (float_Array_0[1] - float_Array_0[0])) [L47] BOOL_unsigned_char_Array_0[0][1] [L47] COND TRUE BOOL_unsigned_char_Array_0[0][1] [L48] EXPR BOOL_unsigned_char_Array_0[0][0] [L48] BOOL_unsigned_char_Array_0[1][0] = (! BOOL_unsigned_char_Array_0[0][0]) [L99] RET step() [L100] CALL, EXPR property() [L90] EXPR unsigned_long_int_Array_0[1][1][1] [L90] EXPR unsigned_long_int_Array_0[0][1][1] [L90] EXPR unsigned_long_int_Array_0[1][0][1] [L90] EXPR ((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]) [L90] EXPR unsigned_long_int_Array_0[0][1][1] [L90] EXPR ((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]) [L90] EXPR (unsigned_long_int_Array_0[1][1][1] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]))))) && (((float_Array_0[4] / float_Array_0[3]) <= (float_Array_0[2] + (float_Array_0[1] - float_Array_0[0]))) ? (unsigned_long_int_Array_0[0][0][1] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]))))) : 1) [L90] EXPR float_Array_0[4] [L90] EXPR float_Array_0[3] [L90] EXPR float_Array_0[2] [L90] EXPR float_Array_0[1] [L90] EXPR float_Array_0[0] [L90] EXPR ((float_Array_0[4] / float_Array_0[3]) <= (float_Array_0[2] + (float_Array_0[1] - float_Array_0[0]))) ? (unsigned_long_int_Array_0[0][0][1] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]))))) : 1 [L90] EXPR unsigned_long_int_Array_0[0][0][1] [L90] EXPR unsigned_long_int_Array_0[0][1][1] [L90] EXPR unsigned_long_int_Array_0[1][0][1] [L90] EXPR ((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]) [L90] EXPR unsigned_long_int_Array_0[0][1][1] [L90] EXPR ((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]) [L90] EXPR ((float_Array_0[4] / float_Array_0[3]) <= (float_Array_0[2] + (float_Array_0[1] - float_Array_0[0]))) ? (unsigned_long_int_Array_0[0][0][1] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]))))) : 1 [L90] EXPR (unsigned_long_int_Array_0[1][1][1] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]))))) && (((float_Array_0[4] / float_Array_0[3]) <= (float_Array_0[2] + (float_Array_0[1] - float_Array_0[0]))) ? (unsigned_long_int_Array_0[0][0][1] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]))))) : 1) [L90] EXPR ((unsigned_long_int_Array_0[1][1][1] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]))))) && (((float_Array_0[4] / float_Array_0[3]) <= (float_Array_0[2] + (float_Array_0[1] - float_Array_0[0]))) ? (unsigned_long_int_Array_0[0][0][1] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]))))) : 1)) && (unsigned_long_int_Array_0[0][1][0] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) > (((unsigned_long_int_Array_0[1][1][0] + unsigned_long_int_Array_0[0][0][0]) - unsigned_long_int_Array_0[1][0][0]))) ? (unsigned_long_int_Array_0[0][1][1]) : (((unsigned_long_int_Array_0[1][1][0] + unsigned_long_int_Array_0[0][0][0]) - unsigned_long_int_Array_0[1][0][0])))))) [L90] EXPR (((unsigned_long_int_Array_0[1][1][1] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]))))) && (((float_Array_0[4] / float_Array_0[3]) <= (float_Array_0[2] + (float_Array_0[1] - float_Array_0[0]))) ? (unsigned_long_int_Array_0[0][0][1] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]))))) : 1)) && (unsigned_long_int_Array_0[0][1][0] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) > (((unsigned_long_int_Array_0[1][1][0] + unsigned_long_int_Array_0[0][0][0]) - unsigned_long_int_Array_0[1][0][0]))) ? (unsigned_long_int_Array_0[0][1][1]) : (((unsigned_long_int_Array_0[1][1][0] + unsigned_long_int_Array_0[0][0][0]) - unsigned_long_int_Array_0[1][0][0]))))))) && (BOOL_unsigned_char_Array_0[0][1] ? ((! ((float_Array_0[4] / float_Array_0[3]) < (float_Array_0[1] - float_Array_0[0]))) ? (BOOL_unsigned_char_Array_0[0][1] ? (BOOL_unsigned_char_Array_0[1][0] == ((unsigned char) (! BOOL_unsigned_char_Array_0[0][0]))) : 1) : 1) : 1) [L90] EXPR ((((unsigned_long_int_Array_0[1][1][1] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]))))) && (((float_Array_0[4] / float_Array_0[3]) <= (float_Array_0[2] + (float_Array_0[1] - float_Array_0[0]))) ? (unsigned_long_int_Array_0[0][0][1] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]))))) : 1)) && (unsigned_long_int_Array_0[0][1][0] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) > (((unsigned_long_int_Array_0[1][1][0] + unsigned_long_int_Array_0[0][0][0]) - unsigned_long_int_Array_0[1][0][0]))) ? (unsigned_long_int_Array_0[0][1][1]) : (((unsigned_long_int_Array_0[1][1][0] + unsigned_long_int_Array_0[0][0][0]) - unsigned_long_int_Array_0[1][0][0]))))))) && (BOOL_unsigned_char_Array_0[0][1] ? ((! ((float_Array_0[4] / float_Array_0[3]) < (float_Array_0[1] - float_Array_0[0]))) ? (BOOL_unsigned_char_Array_0[0][1] ? (BOOL_unsigned_char_Array_0[1][0] == ((unsigned char) (! BOOL_unsigned_char_Array_0[0][0]))) : 1) : 1) : 1)) && ((((- float_Array_0[4]) != 1.9f) || ((unsigned_long_int_Array_0[0][0][1] * unsigned_long_int_Array_0[1][0][0]) < unsigned_long_int_Array_0[1][0][1])) ? (BOOL_unsigned_char_Array_0[0][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[1][1]))) : (BOOL_unsigned_char_Array_0[0][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][1]))) [L90-L91] return ((((unsigned_long_int_Array_0[1][1][1] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]))))) && (((float_Array_0[4] / float_Array_0[3]) <= (float_Array_0[2] + (float_Array_0[1] - float_Array_0[0]))) ? (unsigned_long_int_Array_0[0][0][1] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) < (unsigned_long_int_Array_0[1][0][1])) ? (unsigned_long_int_Array_0[0][1][1]) : (unsigned_long_int_Array_0[1][0][1]))))) : 1)) && (unsigned_long_int_Array_0[0][1][0] == ((unsigned long int) ((((unsigned_long_int_Array_0[0][1][1]) > (((unsigned_long_int_Array_0[1][1][0] + unsigned_long_int_Array_0[0][0][0]) - unsigned_long_int_Array_0[1][0][0]))) ? (unsigned_long_int_Array_0[0][1][1]) : (((unsigned_long_int_Array_0[1][1][0] + unsigned_long_int_Array_0[0][0][0]) - unsigned_long_int_Array_0[1][0][0]))))))) && (BOOL_unsigned_char_Array_0[0][1] ? ((! ((float_Array_0[4] / float_Array_0[3]) < (float_Array_0[1] - float_Array_0[0]))) ? (BOOL_unsigned_char_Array_0[0][1] ? (BOOL_unsigned_char_Array_0[1][0] == ((unsigned char) (! BOOL_unsigned_char_Array_0[0][0]))) : 1) : 1) : 1)) && ((((- float_Array_0[4]) != 1.9f) || ((unsigned_long_int_Array_0[0][0][1] * unsigned_long_int_Array_0[1][0][0]) < unsigned_long_int_Array_0[1][0][1])) ? (BOOL_unsigned_char_Array_0[0][1] == ((unsigned char) (! BOOL_unsigned_char_Array_0[1][1]))) : (BOOL_unsigned_char_Array_0[0][1] == ((unsigned char) BOOL_unsigned_char_Array_0[1][1]))) ; [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, 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=49occurred 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: 0.2s SsaConstructionTime, 4.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 05:29:49,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-23.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E --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 a2911b8889dd63413414f522ab20bad4acbdc28dfebaab4294bb46a3c6eab490 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:29:52,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:29:52,864 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 05:29:52,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:29:52,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:29:52,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:29:52,939 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:29:52,939 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:29:52,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:29:52,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:29:52,940 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:29:52,944 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:29:52,944 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:29:52,944 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:29:52,945 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:29:52,945 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:29:52,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:29:52,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:29:52,945 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:29:52,946 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:29:52,946 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:29:52,946 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:29:52,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:29:52,946 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:29:52,947 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:29:52,947 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:29:52,947 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:29:52,947 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:29:52,947 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:29:52,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:29:52,947 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:29:52,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:29:52,947 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:29:52,947 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:29:52,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:29:52,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:29:52,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:29:52,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:29:52,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:29:52,948 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:29:52,948 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:29:52,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:29:52,948 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:29:52,948 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E 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 -> a2911b8889dd63413414f522ab20bad4acbdc28dfebaab4294bb46a3c6eab490 [2024-11-14 05:29:53,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:29:53,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:29:53,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:29:53,355 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:29:53,355 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:29:53,357 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-23.i Unable to find full path for "g++" [2024-11-14 05:29:55,812 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:29:56,202 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:29:56,203 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-23.i [2024-11-14 05:29:56,214 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/data/44dd2bdf7/71f961b1698c481faebe09a3aee67f7a/FLAG3354f78b1 [2024-11-14 05:29:56,244 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/data/44dd2bdf7/71f961b1698c481faebe09a3aee67f7a [2024-11-14 05:29:56,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:29:56,250 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:29:56,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:29:56,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:29:56,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:29:56,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:29:56" (1/1) ... [2024-11-14 05:29:56,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a58fc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:56, skipping insertion in model container [2024-11-14 05:29:56,264 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:29:56" (1/1) ... [2024-11-14 05:29:56,291 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:29:56,526 WARN L250 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_8852b25b-03cc-4578-a2f1-648626bf79f0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-23.i[916,929] [2024-11-14 05:29:56,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:29:56,694 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:29:56,708 WARN L250 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_8852b25b-03cc-4578-a2f1-648626bf79f0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-23.i[916,929] [2024-11-14 05:29:56,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:29:56,856 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:29:56,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:56 WrapperNode [2024-11-14 05:29:56,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:29:56,861 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:29:56,861 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:29:56,861 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:29:56,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:56" (1/1) ... [2024-11-14 05:29:56,910 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:56" (1/1) ... [2024-11-14 05:29:56,983 INFO L138 Inliner]: procedures = 33, calls = 180, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 538 [2024-11-14 05:29:56,989 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:29:56,989 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:29:56,989 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:29:56,990 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:29:57,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:56" (1/1) ... [2024-11-14 05:29:57,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:56" (1/1) ... [2024-11-14 05:29:57,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:56" (1/1) ... [2024-11-14 05:29:57,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:56" (1/1) ... [2024-11-14 05:29:57,082 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:56" (1/1) ... [2024-11-14 05:29:57,091 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:56" (1/1) ... [2024-11-14 05:29:57,102 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:56" (1/1) ... [2024-11-14 05:29:57,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:56" (1/1) ... [2024-11-14 05:29:57,116 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:29:57,117 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:29:57,117 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:29:57,117 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:29:57,119 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:56" (1/1) ... [2024-11-14 05:29:57,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:29:57,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:29:57,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:29:57,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:29:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:29:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 05:29:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:29:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-14 05:29:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-14 05:29:57,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 05:29:57,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-14 05:29:57,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-14 05:29:57,215 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:29:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:29:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:29:57,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:29:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-14 05:29:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 05:29:57,450 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:29:57,453 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:30:12,111 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-11-14 05:30:12,111 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:30:12,138 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:30:12,139 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:30:12,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:30:12 BoogieIcfgContainer [2024-11-14 05:30:12,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:30:12,144 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:30:12,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:30:12,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:30:12,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:29:56" (1/3) ... [2024-11-14 05:30:12,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7492d8a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:30:12, skipping insertion in model container [2024-11-14 05:30:12,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:29:56" (2/3) ... [2024-11-14 05:30:12,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7492d8a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:30:12, skipping insertion in model container [2024-11-14 05:30:12,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:30:12" (3/3) ... [2024-11-14 05:30:12,156 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-23.i [2024-11-14 05:30:12,175 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:30:12,177 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-23.i that has 2 procedures, 124 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:30:12,268 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:30:12,289 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@551f36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:30:12,289 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:30:12,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 101 states have (on average 1.4158415841584158) internal successors, (143), 102 states have internal predecessors, (143), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:30:12,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-14 05:30:12,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:12,320 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:30:12,321 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:30:12,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:12,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1796693472, now seen corresponding path program 1 times [2024-11-14 05:30:12,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:30:12,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297758] [2024-11-14 05:30:12,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:12,346 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:30:12,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:30:12,350 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:30:12,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 05:30:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:13,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 05:30:13,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:13,443 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-14 05:30:13,443 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:30:13,444 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:30:13,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297758] [2024-11-14 05:30:13,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:13,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:30:13,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:30:13,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127344444] [2024-11-14 05:30:13,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:13,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:30:13,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:30:13,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:30:13,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:30:13,520 INFO L87 Difference]: Start difference. First operand has 124 states, 101 states have (on average 1.4158415841584158) internal successors, (143), 102 states have internal predecessors, (143), 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 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-14 05:30:13,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:13,565 INFO L93 Difference]: Finished difference Result 241 states and 380 transitions. [2024-11-14 05:30:13,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:30:13,567 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 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 165 [2024-11-14 05:30:13,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:13,576 INFO L225 Difference]: With dead ends: 241 [2024-11-14 05:30:13,576 INFO L226 Difference]: Without dead ends: 120 [2024-11-14 05:30:13,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:30:13,583 INFO L432 NwaCegarLoop]: 176 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, 176 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:13,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:30:13,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-14 05:30:13,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-14 05:30:13,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 98 states have (on average 1.3877551020408163) internal successors, (136), 98 states have internal predecessors, (136), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:30:13,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 176 transitions. [2024-11-14 05:30:13,656 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 176 transitions. Word has length 165 [2024-11-14 05:30:13,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:13,657 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 176 transitions. [2024-11-14 05:30:13,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-14 05:30:13,657 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 176 transitions. [2024-11-14 05:30:13,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-14 05:30:13,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:13,662 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:30:13,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 05:30:13,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:30:13,866 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:30:13,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:13,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1257001428, now seen corresponding path program 1 times [2024-11-14 05:30:13,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:30:13,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358239410] [2024-11-14 05:30:13,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:13,868 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:30:13,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:30:13,871 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:30:13,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 05:30:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:14,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:30:14,675 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:14,793 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-14 05:30:14,797 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:30:14,797 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:30:14,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358239410] [2024-11-14 05:30:14,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358239410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:14,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:30:14,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:30:14,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93890003] [2024-11-14 05:30:14,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:14,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:30:14,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:30:14,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:30:14,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:30:14,803 INFO L87 Difference]: Start difference. First operand 120 states and 176 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-14 05:30:14,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:14,935 INFO L93 Difference]: Finished difference Result 239 states and 352 transitions. [2024-11-14 05:30:14,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:30:14,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 165 [2024-11-14 05:30:14,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:14,938 INFO L225 Difference]: With dead ends: 239 [2024-11-14 05:30:14,938 INFO L226 Difference]: Without dead ends: 122 [2024-11-14 05:30:14,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:30:14,941 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:14,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 511 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:30:14,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-14 05:30:14,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-14 05:30:14,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 100 states have (on average 1.38) internal successors, (138), 100 states have internal predecessors, (138), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:30:14,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 178 transitions. [2024-11-14 05:30:14,957 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 178 transitions. Word has length 165 [2024-11-14 05:30:14,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:14,959 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 178 transitions. [2024-11-14 05:30:14,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-14 05:30:14,959 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 178 transitions. [2024-11-14 05:30:14,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-14 05:30:14,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:14,963 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:30:14,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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)] Forceful destruction successful, exit code 0 [2024-11-14 05:30:15,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:30:15,164 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:30:15,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:15,164 INFO L85 PathProgramCache]: Analyzing trace with hash -822495830, now seen corresponding path program 1 times [2024-11-14 05:30:15,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:30:15,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401970904] [2024-11-14 05:30:15,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:15,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:30:15,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:30:15,170 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:30:15,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 05:30:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:15,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:30:15,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:16,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 41 [2024-11-14 05:30:16,576 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2024-11-14 05:30:16,578 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:30:16,578 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:30:16,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401970904] [2024-11-14 05:30:16,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401970904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:16,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:30:16,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:30:16,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457653526] [2024-11-14 05:30:16,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:16,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:30:16,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:30:16,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:30:16,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:30:16,585 INFO L87 Difference]: Start difference. First operand 122 states and 178 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-14 05:30:19,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:21,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:23,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:25,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:27,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:28,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:30,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:32,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:35,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:36,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:38,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:41,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:41,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:41,489 INFO L93 Difference]: Finished difference Result 242 states and 354 transitions. [2024-11-14 05:30:41,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:30:41,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 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 165 [2024-11-14 05:30:41,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:41,492 INFO L225 Difference]: With dead ends: 242 [2024-11-14 05:30:41,492 INFO L226 Difference]: Without dead ends: 123 [2024-11-14 05:30:41,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:30:41,497 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 155 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:41,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 483 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 7 Unknown, 0 Unchecked, 24.7s Time] [2024-11-14 05:30:41,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-14 05:30:41,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 122. [2024-11-14 05:30:41,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 100 states have (on average 1.37) internal successors, (137), 100 states have internal predecessors, (137), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:30:41,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 177 transitions. [2024-11-14 05:30:41,516 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 177 transitions. Word has length 165 [2024-11-14 05:30:41,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:41,516 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 177 transitions. [2024-11-14 05:30:41,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-14 05:30:41,517 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 177 transitions. [2024-11-14 05:30:41,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-14 05:30:41,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:41,521 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:30:41,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-14 05:30:41,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:30:41,721 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:30:41,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:41,722 INFO L85 PathProgramCache]: Analyzing trace with hash -2094322556, now seen corresponding path program 1 times [2024-11-14 05:30:41,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:30:41,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259277917] [2024-11-14 05:30:41,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:41,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:30:41,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:30:41,725 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:30:41,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-14 05:30:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:42,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:30:42,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:42,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2024-11-14 05:30:42,985 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-14 05:30:42,985 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:30:42,985 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:30:42,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259277917] [2024-11-14 05:30:42,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259277917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:42,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:30:42,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:30:42,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374213552] [2024-11-14 05:30:42,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:42,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:30:42,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:30:42,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:30:42,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:30:42,988 INFO L87 Difference]: Start difference. First operand 122 states and 177 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-14 05:30:46,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:47,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:49,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:50,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:53,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:55,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:57,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:30:58,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 05:31:00,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 05:31:02,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:31:02,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:31:02,286 INFO L93 Difference]: Finished difference Result 241 states and 351 transitions. [2024-11-14 05:31:02,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:31:02,287 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 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 167 [2024-11-14 05:31:02,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:31:02,289 INFO L225 Difference]: With dead ends: 241 [2024-11-14 05:31:02,289 INFO L226 Difference]: Without dead ends: 122 [2024-11-14 05:31:02,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:31:02,295 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 148 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:31:02,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 481 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 3 Unknown, 0 Unchecked, 19.1s Time] [2024-11-14 05:31:02,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-14 05:31:02,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2024-11-14 05:31:02,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 98 states have (on average 1.3673469387755102) internal successors, (134), 98 states have internal predecessors, (134), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:31:02,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 174 transitions. [2024-11-14 05:31:02,313 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 174 transitions. Word has length 167 [2024-11-14 05:31:02,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:31:02,313 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 174 transitions. [2024-11-14 05:31:02,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-14 05:31:02,314 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 174 transitions. [2024-11-14 05:31:02,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-14 05:31:02,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:31:02,317 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:31:02,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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)] Forceful destruction successful, exit code 0 [2024-11-14 05:31:02,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:31:02,518 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:31:02,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:31:02,519 INFO L85 PathProgramCache]: Analyzing trace with hash -2029281236, now seen corresponding path program 1 times [2024-11-14 05:31:02,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:31:02,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177100558] [2024-11-14 05:31:02,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:02,520 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:31:02,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:31:02,522 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:31:02,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-14 05:31:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:31:03,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 05:31:03,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:31:03,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 40 [2024-11-14 05:31:04,000 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 336 proven. 20 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2024-11-14 05:31:04,000 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:31:04,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 22 [2024-11-14 05:31:04,920 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 15 proven. 42 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-14 05:31:04,920 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:31:04,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177100558] [2024-11-14 05:31:04,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [177100558] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:31:04,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2028006026] [2024-11-14 05:31:04,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:04,921 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:31:04,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:31:04,937 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:31:04,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-14 05:31:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:31:06,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 05:31:06,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:31:07,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-14 05:31:09,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-14 05:31:09,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-14 05:31:10,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-14 05:31:11,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-14 05:31:11,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-14 05:31:12,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-14 05:31:12,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-14 05:31:13,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-14 05:31:13,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-14 05:31:14,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-14 05:31:14,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-14 05:31:15,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2024-11-14 05:31:15,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 51 [2024-11-14 05:31:15,591 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:31:15,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 18 [2024-11-14 05:31:15,746 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 84 proven. 411 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-14 05:31:15,747 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:31:16,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2028006026] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:31:16,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131637747] [2024-11-14 05:31:16,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:16,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:31:16,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:31:16,597 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:31:16,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 05:31:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:31:16,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 05:31:17,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:31:17,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 51 [2024-11-14 05:31:17,710 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 336 proven. 20 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2024-11-14 05:31:17,710 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:31:18,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 34 [2024-11-14 05:31:18,827 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 15 proven. 42 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-14 05:31:18,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131637747] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:31:18,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 5 imperfect interpolant sequences. [2024-11-14 05:31:18,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 11, 10, 9] total 26 [2024-11-14 05:31:18,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051846046] [2024-11-14 05:31:18,828 INFO L85 oduleStraightlineAll]: Using 5 imperfect interpolants to construct interpolant automaton [2024-11-14 05:31:18,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 05:31:18,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:31:18,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 05:31:18,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=747, Unknown=16, NotChecked=0, Total=870 [2024-11-14 05:31:18,833 INFO L87 Difference]: Start difference. First operand 120 states and 174 transitions. Second operand has 26 states, 24 states have (on average 7.458333333333333) internal successors, (179), 26 states have internal predecessors, (179), 9 states have call successors, (59), 7 states have call predecessors, (59), 9 states have return successors, (59), 7 states have call predecessors, (59), 9 states have call successors, (59) [2024-11-14 05:31:28,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:31:30,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:31:32,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:31:35,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:31:37,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:31:40,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:31:42,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:31:45,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:31:47,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:31:49,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:31:50,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:31:53,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:31:55,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:31:57,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:31:59,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:32:01,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:32:03,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:32:05,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:32:08,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:32:10,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:32:12,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:32:14,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:32:16,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:16,325 INFO L93 Difference]: Finished difference Result 302 states and 428 transitions. [2024-11-14 05:32:16,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 05:32:16,326 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 7.458333333333333) internal successors, (179), 26 states have internal predecessors, (179), 9 states have call successors, (59), 7 states have call predecessors, (59), 9 states have return successors, (59), 7 states have call predecessors, (59), 9 states have call successors, (59) Word has length 169 [2024-11-14 05:32:16,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:16,328 INFO L225 Difference]: With dead ends: 302 [2024-11-14 05:32:16,328 INFO L226 Difference]: Without dead ends: 173 [2024-11-14 05:32:16,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 895 GetRequests, 842 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=515, Invalid=2429, Unknown=26, NotChecked=0, Total=2970 [2024-11-14 05:32:16,333 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 389 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 108 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:16,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 937 Invalid, 1745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1627 Invalid, 10 Unknown, 0 Unchecked, 53.3s Time] [2024-11-14 05:32:16,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-14 05:32:16,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 166. [2024-11-14 05:32:16,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 140 states have (on average 1.3571428571428572) internal successors, (190), 141 states have internal predecessors, (190), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 05:32:16,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 234 transitions. [2024-11-14 05:32:16,365 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 234 transitions. Word has length 169 [2024-11-14 05:32:16,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:16,365 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 234 transitions. [2024-11-14 05:32:16,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 7.458333333333333) internal successors, (179), 26 states have internal predecessors, (179), 9 states have call successors, (59), 7 states have call predecessors, (59), 9 states have return successors, (59), 7 states have call predecessors, (59), 9 states have call successors, (59) [2024-11-14 05:32:16,366 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 234 transitions. [2024-11-14 05:32:16,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-14 05:32:16,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:16,369 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:32:16,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-14 05:32:16,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-14 05:32:16,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-14 05:32:16,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:32:16,971 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:32:16,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:16,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1625390124, now seen corresponding path program 1 times [2024-11-14 05:32:16,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:32:16,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972031838] [2024-11-14 05:32:16,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:16,972 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:32:16,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:32:16,974 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:32:16,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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 (9)] Waiting until timeout for monitored process [2024-11-14 05:32:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:17,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 05:32:17,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:17,691 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 05:32:17,691 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:32:17,691 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:32:17,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972031838] [2024-11-14 05:32:17,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972031838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:32:17,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:32:17,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:32:17,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891765969] [2024-11-14 05:32:17,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:32:17,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:32:17,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:32:17,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:32:17,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:32:17,696 INFO L87 Difference]: Start difference. First operand 166 states and 234 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:32:17,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:17,791 INFO L93 Difference]: Finished difference Result 330 states and 467 transitions. [2024-11-14 05:32:17,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:32:17,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 169 [2024-11-14 05:32:17,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:17,798 INFO L225 Difference]: With dead ends: 330 [2024-11-14 05:32:17,798 INFO L226 Difference]: Without dead ends: 167 [2024-11-14 05:32:17,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:32:17,801 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:17,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 336 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:32:17,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-14 05:32:17,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-14 05:32:17,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 141 states have (on average 1.3546099290780143) internal successors, (191), 142 states have internal predecessors, (191), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 05:32:17,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 235 transitions. [2024-11-14 05:32:17,842 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 235 transitions. Word has length 169 [2024-11-14 05:32:17,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:17,844 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 235 transitions. [2024-11-14 05:32:17,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:32:17,845 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 235 transitions. [2024-11-14 05:32:17,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-14 05:32:17,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:17,864 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:32:17,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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 (9)] Ended with exit code 0 [2024-11-14 05:32:18,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:32:18,065 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:32:18,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:18,066 INFO L85 PathProgramCache]: Analyzing trace with hash -368754582, now seen corresponding path program 1 times [2024-11-14 05:32:18,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:32:18,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123143501] [2024-11-14 05:32:18,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:18,066 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:32:18,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:32:18,069 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:32:18,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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 (10)] Waiting until timeout for monitored process [2024-11-14 05:32:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:18,968 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 05:32:18,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:21,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-14 05:32:21,588 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:32:21,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23 [2024-11-14 05:32:21,923 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:32:21,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 30 [2024-11-14 05:32:22,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2024-11-14 05:32:22,246 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:32:22,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 18 [2024-11-14 05:32:22,352 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 05:32:22,353 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:32:22,353 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:32:22,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123143501] [2024-11-14 05:32:22,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1123143501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:32:22,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:32:22,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 05:32:22,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311284522] [2024-11-14 05:32:22,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:32:22,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 05:32:22,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:32:22,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 05:32:22,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:32:22,354 INFO L87 Difference]: Start difference. First operand 167 states and 235 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:32:25,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:32:27,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:32:29,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:32:31,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:32:33,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:32:35,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:32:38,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:32:41,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:32:44,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:32:46,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:32:49,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:32:51,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 05:32:53,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:32:53,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:53,994 INFO L93 Difference]: Finished difference Result 535 states and 748 transitions. [2024-11-14 05:32:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:32:53,995 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 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 169 [2024-11-14 05:32:53,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:53,998 INFO L225 Difference]: With dead ends: 535 [2024-11-14 05:32:53,998 INFO L226 Difference]: Without dead ends: 371 [2024-11-14 05:32:53,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-14 05:32:54,000 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 387 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 25 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:54,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 519 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 565 Invalid, 9 Unknown, 0 Unchecked, 31.4s Time] [2024-11-14 05:32:54,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-14 05:32:54,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 190. [2024-11-14 05:32:54,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 164 states have (on average 1.3719512195121952) internal successors, (225), 165 states have internal predecessors, (225), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 05:32:54,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 269 transitions. [2024-11-14 05:32:54,022 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 269 transitions. Word has length 169 [2024-11-14 05:32:54,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:54,023 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 269 transitions. [2024-11-14 05:32:54,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:32:54,023 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 269 transitions. [2024-11-14 05:32:54,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-14 05:32:54,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:54,026 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:32:54,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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 (10)] Ended with exit code 0 [2024-11-14 05:32:54,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:32:54,226 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:32:54,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:54,227 INFO L85 PathProgramCache]: Analyzing trace with hash -955560596, now seen corresponding path program 1 times [2024-11-14 05:32:54,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:32:54,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [776675228] [2024-11-14 05:32:54,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:54,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:32:54,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:32:54,229 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:32:54,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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 (11)] Waiting until timeout for monitored process [2024-11-14 05:32:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:54,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 05:32:54,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:56,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-14 05:32:57,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-14 05:32:57,195 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:32:57,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 22 [2024-11-14 05:32:57,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 17 [2024-11-14 05:32:57,419 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:32:57,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 10 [2024-11-14 05:32:57,509 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 05:32:57,509 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:32:57,510 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:32:57,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [776675228] [2024-11-14 05:32:57,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [776675228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:32:57,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:32:57,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 05:32:57,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263878438] [2024-11-14 05:32:57,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:32:57,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 05:32:57,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:32:57,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 05:32:57,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:32:57,511 INFO L87 Difference]: Start difference. First operand 190 states and 269 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:33:00,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:02,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:04,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:06,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:08,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:11,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:12,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:13,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:15,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:16,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:18,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:20,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:22,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:24,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:26,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:28,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:30,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:32,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:33,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:37,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:37,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:33:37,483 INFO L93 Difference]: Finished difference Result 433 states and 609 transitions. [2024-11-14 05:33:37,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:33:37,485 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 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 169 [2024-11-14 05:33:37,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:33:37,487 INFO L225 Difference]: With dead ends: 433 [2024-11-14 05:33:37,487 INFO L226 Difference]: Without dead ends: 246 [2024-11-14 05:33:37,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:33:37,489 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 156 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 6 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:33:37,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 601 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 572 Invalid, 12 Unknown, 0 Unchecked, 39.7s Time] [2024-11-14 05:33:37,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-14 05:33:37,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 199. [2024-11-14 05:33:37,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 173 states have (on average 1.369942196531792) internal successors, (237), 174 states have internal predecessors, (237), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 05:33:37,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 281 transitions. [2024-11-14 05:33:37,517 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 281 transitions. Word has length 169 [2024-11-14 05:33:37,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:33:37,517 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 281 transitions. [2024-11-14 05:33:37,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:33:37,518 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 281 transitions. [2024-11-14 05:33:37,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-14 05:33:37,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:37,521 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:33:37,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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 (11)] Ended with exit code 0 [2024-11-14 05:33:37,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:33:37,722 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:33:37,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:37,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1186403032, now seen corresponding path program 1 times [2024-11-14 05:33:37,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:33:37,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553319567] [2024-11-14 05:33:37,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:37,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:33:37,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:33:37,726 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:33:37,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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 (12)] Waiting until timeout for monitored process [2024-11-14 05:33:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:38,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 05:33:38,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:33:40,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-14 05:33:41,290 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:33:41,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23 [2024-11-14 05:33:41,412 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:33:41,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23 [2024-11-14 05:33:41,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2024-11-14 05:33:41,607 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:33:41,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 11 [2024-11-14 05:33:41,656 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 05:33:41,657 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:33:41,657 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:33:41,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553319567] [2024-11-14 05:33:41,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553319567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:33:41,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:33:41,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:33:41,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090390614] [2024-11-14 05:33:41,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:33:41,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:33:41,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:33:41,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:33:41,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:33:41,659 INFO L87 Difference]: Start difference. First operand 199 states and 281 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:33:44,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:46,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:48,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:50,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:52,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:55,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:56,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:33:58,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:33:58,216 INFO L93 Difference]: Finished difference Result 440 states and 617 transitions. [2024-11-14 05:33:58,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:33:58,218 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 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 169 [2024-11-14 05:33:58,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:33:58,220 INFO L225 Difference]: With dead ends: 440 [2024-11-14 05:33:58,220 INFO L226 Difference]: Without dead ends: 244 [2024-11-14 05:33:58,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:33:58,221 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 232 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 19 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:33:58,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 451 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 381 Invalid, 3 Unknown, 0 Unchecked, 16.5s Time] [2024-11-14 05:33:58,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-14 05:33:58,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 187. [2024-11-14 05:33:58,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 161 states have (on average 1.360248447204969) internal successors, (219), 162 states have internal predecessors, (219), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 05:33:58,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 263 transitions. [2024-11-14 05:33:58,242 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 263 transitions. Word has length 169 [2024-11-14 05:33:58,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:33:58,243 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 263 transitions. [2024-11-14 05:33:58,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:33:58,243 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 263 transitions. [2024-11-14 05:33:58,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-14 05:33:58,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:58,244 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:33:58,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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 (12)] Ended with exit code 0 [2024-11-14 05:33:58,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:33:58,445 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:33:58,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:58,445 INFO L85 PathProgramCache]: Analyzing trace with hash -234741076, now seen corresponding path program 1 times [2024-11-14 05:33:58,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:33:58,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631600199] [2024-11-14 05:33:58,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:58,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:33:58,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:33:58,447 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:33:58,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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 (13)] Waiting until timeout for monitored process [2024-11-14 05:33:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:59,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 05:33:59,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:01,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-14 05:34:01,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-14 05:34:01,474 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:34:01,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 22 [2024-11-14 05:34:01,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 17 [2024-11-14 05:34:01,684 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:34:01,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 10 [2024-11-14 05:34:01,771 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 05:34:01,771 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:34:01,771 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:34:01,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631600199] [2024-11-14 05:34:01,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631600199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:34:01,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:34:01,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 05:34:01,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863615669] [2024-11-14 05:34:01,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:34:01,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 05:34:01,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:34:01,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 05:34:01,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:34:01,773 INFO L87 Difference]: Start difference. First operand 187 states and 263 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:34:04,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:07,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:09,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:11,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:13,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:15,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:17,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:19,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:19,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:34:19,822 INFO L93 Difference]: Finished difference Result 429 states and 597 transitions. [2024-11-14 05:34:19,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:34:19,823 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 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 169 [2024-11-14 05:34:19,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:34:19,825 INFO L225 Difference]: With dead ends: 429 [2024-11-14 05:34:19,825 INFO L226 Difference]: Without dead ends: 245 [2024-11-14 05:34:19,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:34:19,826 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 154 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:34:19,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 637 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 659 Invalid, 2 Unknown, 0 Unchecked, 17.8s Time] [2024-11-14 05:34:19,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-14 05:34:19,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 156. [2024-11-14 05:34:19,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 130 states have (on average 1.323076923076923) internal successors, (172), 131 states have internal predecessors, (172), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 05:34:19,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 216 transitions. [2024-11-14 05:34:19,852 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 216 transitions. Word has length 169 [2024-11-14 05:34:19,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:34:19,853 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 216 transitions. [2024-11-14 05:34:19,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:34:19,853 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 216 transitions. [2024-11-14 05:34:19,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-14 05:34:19,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:19,854 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:34:19,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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 (13)] Ended with exit code 0 [2024-11-14 05:34:20,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:34:20,055 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:34:20,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:20,055 INFO L85 PathProgramCache]: Analyzing trace with hash -821547090, now seen corresponding path program 1 times [2024-11-14 05:34:20,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:34:20,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213553876] [2024-11-14 05:34:20,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:20,056 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:34:20,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:34:20,058 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:34:20,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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 (14)] Waiting until timeout for monitored process [2024-11-14 05:34:20,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:20,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 05:34:20,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:22,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-14 05:34:22,859 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:34:22,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 22 [2024-11-14 05:34:22,969 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:34:22,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 22 [2024-11-14 05:34:23,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 17 [2024-11-14 05:34:23,110 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:34:23,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 10 [2024-11-14 05:34:23,149 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 05:34:23,149 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:34:23,149 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:34:23,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213553876] [2024-11-14 05:34:23,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213553876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:34:23,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:34:23,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:34:23,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360427603] [2024-11-14 05:34:23,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:34:23,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:34:23,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:34:23,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:34:23,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:34:23,151 INFO L87 Difference]: Start difference. First operand 156 states and 216 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:34:26,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:28,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:30,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:32,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:35,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:36,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:39,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:41,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:44,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:45,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:34:45,933 INFO L93 Difference]: Finished difference Result 353 states and 482 transitions. [2024-11-14 05:34:45,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:34:45,934 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 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 169 [2024-11-14 05:34:45,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:34:45,936 INFO L225 Difference]: With dead ends: 353 [2024-11-14 05:34:45,936 INFO L226 Difference]: Without dead ends: 205 [2024-11-14 05:34:45,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:34:45,938 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 150 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 7 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:34:45,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 502 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 521 Invalid, 6 Unknown, 0 Unchecked, 22.7s Time] [2024-11-14 05:34:45,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-14 05:34:45,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 149. [2024-11-14 05:34:45,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 125 states have (on average 1.32) internal successors, (165), 125 states have internal predecessors, (165), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:34:45,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 205 transitions. [2024-11-14 05:34:45,958 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 205 transitions. Word has length 169 [2024-11-14 05:34:45,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:34:45,959 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 205 transitions. [2024-11-14 05:34:45,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:34:45,959 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 205 transitions. [2024-11-14 05:34:45,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-14 05:34:45,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:45,960 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:34:45,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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 (14)] Ended with exit code 0 [2024-11-14 05:34:46,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:34:46,161 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:34:46,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:46,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1739664226, now seen corresponding path program 1 times [2024-11-14 05:34:46,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:34:46,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475581045] [2024-11-14 05:34:46,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:46,162 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:34:46,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:34:46,164 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:34:46,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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 (15)] Waiting until timeout for monitored process [2024-11-14 05:34:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:46,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:34:46,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:47,069 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 05:34:47,069 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:34:47,069 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:34:47,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475581045] [2024-11-14 05:34:47,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475581045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:34:47,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:34:47,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:34:47,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116247637] [2024-11-14 05:34:47,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:34:47,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:34:47,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:34:47,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:34:47,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:34:47,071 INFO L87 Difference]: Start difference. First operand 149 states and 205 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:34:47,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:34:47,221 INFO L93 Difference]: Finished difference Result 298 states and 411 transitions. [2024-11-14 05:34:47,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:34:47,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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 171 [2024-11-14 05:34:47,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:34:47,224 INFO L225 Difference]: With dead ends: 298 [2024-11-14 05:34:47,224 INFO L226 Difference]: Without dead ends: 152 [2024-11-14 05:34:47,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:34:47,225 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:34:47,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 656 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:34:47,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-14 05:34:47,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-14 05:34:47,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 128 states have (on average 1.3125) internal successors, (168), 128 states have internal predecessors, (168), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:34:47,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 208 transitions. [2024-11-14 05:34:47,245 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 208 transitions. Word has length 171 [2024-11-14 05:34:47,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:34:47,245 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 208 transitions. [2024-11-14 05:34:47,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:34:47,246 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 208 transitions. [2024-11-14 05:34:47,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-14 05:34:47,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:47,250 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:34:47,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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 (15)] Ended with exit code 0 [2024-11-14 05:34:47,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:34:47,451 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:34:47,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:47,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1699337725, now seen corresponding path program 1 times [2024-11-14 05:34:47,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:34:47,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112291143] [2024-11-14 05:34:47,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:47,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:34:47,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:34:47,455 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:34:47,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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 (16)] Waiting until timeout for monitored process [2024-11-14 05:34:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:48,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:34:48,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:48,538 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:34:48,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 11 [2024-11-14 05:34:48,576 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-14 05:34:48,576 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:34:48,576 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:34:48,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112291143] [2024-11-14 05:34:48,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112291143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:34:48,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:34:48,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:34:48,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042911285] [2024-11-14 05:34:48,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:34:48,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:34:48,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:34:48,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:34:48,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:34:48,578 INFO L87 Difference]: Start difference. First operand 152 states and 208 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:34:51,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:52,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:54,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:56,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:34:58,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:35:01,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:35:03,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:35:03,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:35:03,546 INFO L93 Difference]: Finished difference Result 335 states and 458 transitions. [2024-11-14 05:35:03,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:35:03,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 173 [2024-11-14 05:35:03,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:35:03,550 INFO L225 Difference]: With dead ends: 335 [2024-11-14 05:35:03,550 INFO L226 Difference]: Without dead ends: 186 [2024-11-14 05:35:03,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:35:03,551 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 38 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:35:03,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 504 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 4 Unknown, 0 Unchecked, 14.9s Time] [2024-11-14 05:35:03,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-14 05:35:03,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 156. [2024-11-14 05:35:03,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 132 states have (on average 1.3106060606060606) internal successors, (173), 132 states have internal predecessors, (173), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:35:03,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 213 transitions. [2024-11-14 05:35:03,576 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 213 transitions. Word has length 173 [2024-11-14 05:35:03,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:35:03,577 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 213 transitions. [2024-11-14 05:35:03,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-14 05:35:03,577 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 213 transitions. [2024-11-14 05:35:03,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-14 05:35:03,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:35:03,581 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:35:03,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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 (16)] Ended with exit code 0 [2024-11-14 05:35:03,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:35:03,781 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:35:03,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:35:03,782 INFO L85 PathProgramCache]: Analyzing trace with hash 2008823557, now seen corresponding path program 1 times [2024-11-14 05:35:03,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:35:03,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [245668562] [2024-11-14 05:35:03,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:35:03,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:35:03,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:35:03,784 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:35:03,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8852b25b-03cc-4578-a2f1-648626bf79f0/bin/utaipan-verify-sOmjnqqW8E/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 (17)] Waiting until timeout for monitored process