./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3507c00d68b8e41390815967879286d70904cb2355267878593fbddaafb4b556 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:54:55,747 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:54:55,814 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:54:55,820 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:54:55,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:54:55,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:54:55,845 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:54:55,845 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:54:55,845 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:54:55,846 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:54:55,846 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:54:55,846 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:54:55,846 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:54:55,846 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:54:55,846 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:54:55,847 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:54:55,847 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:54:55,847 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:54:55,847 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:54:55,847 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:54:55,847 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:54:55,847 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:54:55,847 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:54:55,847 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:54:55,847 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:54:55,848 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:54:55,848 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:54:55,848 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:54:55,848 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:54:55,848 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:54:55,848 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:54:55,848 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:54:55,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:54:55,848 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:54:55,848 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:54:55,849 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:54:55,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:54:55,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:54:55,849 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:54:55,849 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:54:55,849 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:54:55,849 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:54:55,849 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:54:55,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:54:55,849 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:54:55,850 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:54:55,850 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:54:55,850 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:54:55,850 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1 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 -> Automizer 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 -> 3507c00d68b8e41390815967879286d70904cb2355267878593fbddaafb4b556 [2024-12-02 11:54:56,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:54:56,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:54:56,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:54:56,135 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:54:56,136 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:54:56,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c [2024-12-02 11:54:59,270 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/data/339c81732/b39182a25c9a4512a9bdafb5db32c14b/FLAG08f2cbadc [2024-12-02 11:54:59,449 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:54:59,450 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c [2024-12-02 11:54:59,456 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/data/339c81732/b39182a25c9a4512a9bdafb5db32c14b/FLAG08f2cbadc [2024-12-02 11:54:59,473 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/data/339c81732/b39182a25c9a4512a9bdafb5db32c14b [2024-12-02 11:54:59,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:54:59,476 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:54:59,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:54:59,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:54:59,482 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:54:59,482 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:54:59" (1/1) ... [2024-12-02 11:54:59,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2430c8dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:59, skipping insertion in model container [2024-12-02 11:54:59,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:54:59" (1/1) ... [2024-12-02 11:54:59,498 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:54:59,643 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_74867028-0f46-4a62-99f6-113352400fbd/sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c[1314,1327] [2024-12-02 11:54:59,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:54:59,662 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:54:59,681 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_74867028-0f46-4a62-99f6-113352400fbd/sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c[1314,1327] [2024-12-02 11:54:59,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:54:59,703 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:54:59,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:59 WrapperNode [2024-12-02 11:54:59,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:54:59,705 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:54:59,705 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:54:59,705 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:54:59,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:59" (1/1) ... [2024-12-02 11:54:59,720 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:59" (1/1) ... [2024-12-02 11:54:59,742 INFO L138 Inliner]: procedures = 18, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 149 [2024-12-02 11:54:59,743 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:54:59,743 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:54:59,743 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:54:59,743 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:54:59,752 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:59" (1/1) ... [2024-12-02 11:54:59,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:59" (1/1) ... [2024-12-02 11:54:59,754 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:59" (1/1) ... [2024-12-02 11:54:59,767 INFO L175 MemorySlicer]: Split 21 memory accesses to 3 slices as follows [2, 11, 8]. 52 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-12-02 11:54:59,767 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:59" (1/1) ... [2024-12-02 11:54:59,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:59" (1/1) ... [2024-12-02 11:54:59,776 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:59" (1/1) ... [2024-12-02 11:54:59,777 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:59" (1/1) ... [2024-12-02 11:54:59,779 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:59" (1/1) ... [2024-12-02 11:54:59,781 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:59" (1/1) ... [2024-12-02 11:54:59,782 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:59" (1/1) ... [2024-12-02 11:54:59,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:54:59,785 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:54:59,785 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:54:59,785 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:54:59,786 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:59" (1/1) ... [2024-12-02 11:54:59,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:54:59,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:54:59,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:54:59,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:54:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:54:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:54:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 11:54:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 11:54:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 11:54:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-12-02 11:54:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-12-02 11:54:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-12-02 11:54:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:54:59,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:54:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-12-02 11:54:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-12-02 11:54:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-12-02 11:54:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 11:54:59,925 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:54:59,928 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:55:00,112 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-12-02 11:55:00,112 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:55:00,123 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:55:00,123 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 11:55:00,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:55:00 BoogieIcfgContainer [2024-12-02 11:55:00,124 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:55:00,126 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:55:00,126 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:55:00,131 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:55:00,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:54:59" (1/3) ... [2024-12-02 11:55:00,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae1d854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:55:00, skipping insertion in model container [2024-12-02 11:55:00,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:59" (2/3) ... [2024-12-02 11:55:00,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae1d854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:55:00, skipping insertion in model container [2024-12-02 11:55:00,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:55:00" (3/3) ... [2024-12-02 11:55:00,134 INFO L128 eAbstractionObserver]: Analyzing ICFG interpolation.c.v+nlh-reducer.c [2024-12-02 11:55:00,152 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:55:00,154 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG interpolation.c.v+nlh-reducer.c that has 1 procedures, 25 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 11:55:00,215 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:55:00,228 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=PETRI_NET, 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;@44233118, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:55:00,228 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:55:00,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:55:00,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-02 11:55:00,237 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:55:00,238 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:55:00,238 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:55:00,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:55:00,244 INFO L85 PathProgramCache]: Analyzing trace with hash 775758574, now seen corresponding path program 1 times [2024-12-02 11:55:00,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:55:00,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100874029] [2024-12-02 11:55:00,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:55:00,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:55:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:55:00,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:55:00,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:55:00,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100874029] [2024-12-02 11:55:00,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100874029] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:55:00,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:55:00,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:55:00,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851007501] [2024-12-02 11:55:00,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:55:00,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:55:00,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:55:00,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:55:00,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:55:00,567 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:55:00,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:55:00,618 INFO L93 Difference]: Finished difference Result 32 states and 45 transitions. [2024-12-02 11:55:00,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:55:00,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-12-02 11:55:00,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:55:00,626 INFO L225 Difference]: With dead ends: 32 [2024-12-02 11:55:00,626 INFO L226 Difference]: Without dead ends: 22 [2024-12-02 11:55:00,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:55:00,631 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:55:00,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:55:00,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-12-02 11:55:00,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-12-02 11:55:00,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:55:00,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2024-12-02 11:55:00,656 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 13 [2024-12-02 11:55:00,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:55:00,656 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2024-12-02 11:55:00,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:55:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2024-12-02 11:55:00,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-02 11:55:00,657 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:55:00,657 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:55:00,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:55:00,658 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:55:00,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:55:00,658 INFO L85 PathProgramCache]: Analyzing trace with hash 792769235, now seen corresponding path program 1 times [2024-12-02 11:55:00,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:55:00,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557753317] [2024-12-02 11:55:00,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:55:00,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:55:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:55:00,688 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:55:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:55:00,732 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 11:55:00,732 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:55:00,734 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 11:55:00,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:55:00,740 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 11:55:00,761 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 11:55:00,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:55:00 BoogieIcfgContainer [2024-12-02 11:55:00,764 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 11:55:00,764 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:55:00,764 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:55:00,764 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:55:00,765 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:55:00" (3/4) ... [2024-12-02 11:55:00,767 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 11:55:00,768 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:55:00,768 INFO L158 Benchmark]: Toolchain (without parser) took 1292.09ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 88.3MB in the end (delta: 4.5MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2024-12-02 11:55:00,769 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:55:00,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.67ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 80.9MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:55:00,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.87ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:55:00,770 INFO L158 Benchmark]: Boogie Preprocessor took 41.08ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:55:00,770 INFO L158 Benchmark]: RCFGBuilder took 338.93ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 64.9MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:55:00,771 INFO L158 Benchmark]: TraceAbstraction took 637.67ms. Allocated memory is still 117.4MB. Free memory was 64.4MB in the beginning and 88.9MB in the end (delta: -24.5MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2024-12-02 11:55:00,771 INFO L158 Benchmark]: Witness Printer took 3.46ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 88.3MB in the end (delta: 592.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:55:00,773 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.67ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 80.9MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.87ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.08ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 338.93ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 64.9MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 637.67ms. Allocated memory is still 117.4MB. Free memory was 64.4MB in the beginning and 88.9MB in the end (delta: -24.5MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. * Witness Printer took 3.46ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 88.3MB in the end (delta: 592.3kB). 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: 51]: 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 22, overapproximation of someBinaryFLOATComparisonOperation at line 32, overapproximation of someBinaryFLOATComparisonOperation at line 24, overapproximation of someBinaryDOUBLEComparisonOperation at line 38, overapproximation of to_real at line 18, overapproximation of someBinaryArithmeticFLOAToperation at line 36. Possible FailurePath: [L1] int __return_main; [L12] int __return_132; VAL [__return_132=0, __return_main=0] [L15] int main__i; [L16] float main__z; [L17] float main__t; [L18] float main__min[5] = { 5, 10, 12, 30, 150 }; [L18] float main__min[5] = { 5, 10, 12, 30, 150 }; [L18] float main__min[5] = { 5, 10, 12, 30, 150 }; [L18] float main__min[5] = { 5, 10, 12, 30, 150 }; [L18] float main__min[5] = { 5, 10, 12, 30, 150 }; [L18] float main__min[5] = { 5, 10, 12, 30, 150 }; [L19] float main__max[5] = { 10, 12, 30, 150, 300 }; [L19] float main__max[5] = { 10, 12, 30, 150, 300 }; [L19] float main__max[5] = { 10, 12, 30, 150, 300 }; [L19] float main__max[5] = { 10, 12, 30, 150, 300 }; [L19] float main__max[5] = { 10, 12, 30, 150, 300 }; [L19] float main__max[5] = { 10, 12, 30, 150, 300 }; [L20] main__t = __VERIFIER_nondet_float() [L21] int main____CPAchecker_TMP_0; [L22] EXPR main__min[0] VAL [__return_132=0, __return_main=0] [L22] COND TRUE main__t >= (main__min[0]) [L24] EXPR main__max[4UL] VAL [__return_132=0, __return_main=0] [L24] COND TRUE main__t <= (main__max[4UL]) [L26] main____CPAchecker_TMP_0 = 1 VAL [__return_132=0, __return_main=0, main____CPAchecker_TMP_0=1, main__max={5:0}] [L27] COND TRUE main____CPAchecker_TMP_0 != 0 [L29] main__i = 0 VAL [__return_132=0, __return_main=0, main__i=0, main__max={5:0}] [L30] COND TRUE main__i < 5UL [L32] EXPR main__max[main__i] VAL [__return_132=0, __return_main=0] [L32] COND TRUE main__t <= (main__max[main__i]) [L36] EXPR main__min[main__i] [L36] EXPR main__max[main__i] [L36] EXPR main__min[main__i] [L36] main__z = (main__t - (main__min[main__i])) / ((main__max[main__i]) - (main__min[main__i])) [L37] int main____CPAchecker_TMP_1; VAL [__return_132=0, __return_main=0, main__i=0, main__max={5:0}] [L38] COND FALSE !(main__z >= 0.0) VAL [__return_132=0, __return_main=0, main__i=0, main__max={5:0}] [L64] main____CPAchecker_TMP_1 = 0 VAL [__return_132=0, __return_main=0, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}] [L45] int __tmp_1; [L46] __tmp_1 = main____CPAchecker_TMP_1 [L47] int __VERIFIER_assert__cond; [L48] __VERIFIER_assert__cond = __tmp_1 VAL [__VERIFIER_assert__cond=0, __return_132=0, __return_main=0, main__i=0, main__max={5:0}] [L49] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_132=0, __return_main=0, main__i=0, main__max={5:0}] [L51] reach_error() VAL [__return_132=0, __return_main=0, main__i=0, main__max={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 121 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 33 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 11:55:00,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3507c00d68b8e41390815967879286d70904cb2355267878593fbddaafb4b556 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:55:03,119 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:55:03,215 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 11:55:03,222 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:55:03,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:55:03,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:55:03,251 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:55:03,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:55:03,251 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:55:03,252 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:55:03,252 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:55:03,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:55:03,252 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:55:03,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:55:03,253 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:55:03,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:55:03,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:55:03,253 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:55:03,253 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:55:03,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:55:03,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:55:03,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:55:03,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:55:03,254 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 11:55:03,254 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 11:55:03,254 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 11:55:03,254 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:55:03,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:55:03,254 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:55:03,254 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:55:03,255 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:55:03,255 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:55:03,255 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:55:03,255 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:55:03,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:55:03,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:55:03,255 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:55:03,255 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:55:03,255 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:55:03,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:55:03,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:55:03,256 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:55:03,256 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:55:03,256 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:55:03,256 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 11:55:03,256 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 11:55:03,256 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:55:03,256 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:55:03,256 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:55:03,257 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:55:03,257 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1 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 -> Automizer 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 -> 3507c00d68b8e41390815967879286d70904cb2355267878593fbddaafb4b556 [2024-12-02 11:55:03,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:55:03,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:55:03,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:55:03,565 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:55:03,566 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:55:03,567 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c [2024-12-02 11:55:06,763 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/data/7b9b4ac5a/211cfcd7ea85469b9e6b5939704d7d2f/FLAG0c2103e50 [2024-12-02 11:55:06,993 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:55:06,994 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c [2024-12-02 11:55:07,001 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/data/7b9b4ac5a/211cfcd7ea85469b9e6b5939704d7d2f/FLAG0c2103e50 [2024-12-02 11:55:07,014 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/data/7b9b4ac5a/211cfcd7ea85469b9e6b5939704d7d2f [2024-12-02 11:55:07,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:55:07,018 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:55:07,019 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:55:07,019 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:55:07,023 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:55:07,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:55:07" (1/1) ... [2024-12-02 11:55:07,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46749db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:55:07, skipping insertion in model container [2024-12-02 11:55:07,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:55:07" (1/1) ... [2024-12-02 11:55:07,042 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:55:07,217 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_74867028-0f46-4a62-99f6-113352400fbd/sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c[1314,1327] [2024-12-02 11:55:07,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:55:07,240 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:55:07,262 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_74867028-0f46-4a62-99f6-113352400fbd/sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c[1314,1327] [2024-12-02 11:55:07,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:55:07,284 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:55:07,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:55:07 WrapperNode [2024-12-02 11:55:07,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:55:07,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:55:07,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:55:07,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:55:07,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:55:07" (1/1) ... [2024-12-02 11:55:07,300 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:55:07" (1/1) ... [2024-12-02 11:55:07,321 INFO L138 Inliner]: procedures = 19, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 150 [2024-12-02 11:55:07,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:55:07,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:55:07,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:55:07,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:55:07,331 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:55:07" (1/1) ... [2024-12-02 11:55:07,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:55:07" (1/1) ... [2024-12-02 11:55:07,336 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:55:07" (1/1) ... [2024-12-02 11:55:07,350 INFO L175 MemorySlicer]: Split 21 memory accesses to 3 slices as follows [2, 11, 8]. 52 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-12-02 11:55:07,350 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:55:07" (1/1) ... [2024-12-02 11:55:07,350 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:55:07" (1/1) ... [2024-12-02 11:55:07,362 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:55:07" (1/1) ... [2024-12-02 11:55:07,363 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:55:07" (1/1) ... [2024-12-02 11:55:07,366 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:55:07" (1/1) ... [2024-12-02 11:55:07,368 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:55:07" (1/1) ... [2024-12-02 11:55:07,369 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:55:07" (1/1) ... [2024-12-02 11:55:07,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:55:07,374 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:55:07,374 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:55:07,374 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:55:07,376 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:55:07" (1/1) ... [2024-12-02 11:55:07,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:55:07,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:55:07,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:55:07,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:55:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:55:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-12-02 11:55:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-12-02 11:55:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-12-02 11:55:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 11:55:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 11:55:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 11:55:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 11:55:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-02 11:55:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-02 11:55:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-12-02 11:55:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:55:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:55:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 11:55:07,517 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:55:07,518 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:55:12,089 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-12-02 11:55:12,090 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:55:12,097 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:55:12,097 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 11:55:12,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:55:12 BoogieIcfgContainer [2024-12-02 11:55:12,098 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:55:12,099 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:55:12,099 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:55:12,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:55:12,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:55:07" (1/3) ... [2024-12-02 11:55:12,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eaf7200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:55:12, skipping insertion in model container [2024-12-02 11:55:12,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:55:07" (2/3) ... [2024-12-02 11:55:12,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eaf7200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:55:12, skipping insertion in model container [2024-12-02 11:55:12,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:55:12" (3/3) ... [2024-12-02 11:55:12,105 INFO L128 eAbstractionObserver]: Analyzing ICFG interpolation.c.v+nlh-reducer.c [2024-12-02 11:55:12,117 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:55:12,118 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG interpolation.c.v+nlh-reducer.c that has 1 procedures, 25 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 11:55:12,157 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:55:12,166 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=PETRI_NET, 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;@43df7c42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:55:12,166 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:55:12,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:55:12,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-02 11:55:12,173 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:55:12,174 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:55:12,174 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:55:12,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:55:12,178 INFO L85 PathProgramCache]: Analyzing trace with hash 775758574, now seen corresponding path program 1 times [2024-12-02 11:55:12,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:55:12,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684888579] [2024-12-02 11:55:12,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:55:12,188 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 [2024-12-02 11:55:12,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:55:12,190 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 11:55:12,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:55:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:55:12,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:55:12,576 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:55:12,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:55:12,665 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:55:12,666 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:55:12,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684888579] [2024-12-02 11:55:12,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684888579] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:55:12,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:55:12,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:55:12,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055688247] [2024-12-02 11:55:12,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:55:12,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:55:12,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:55:12,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:55:12,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:55:12,692 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:55:16,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:55:16,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:55:16,835 INFO L93 Difference]: Finished difference Result 32 states and 45 transitions. [2024-12-02 11:55:16,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:55:16,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-12-02 11:55:16,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:55:16,844 INFO L225 Difference]: With dead ends: 32 [2024-12-02 11:55:16,844 INFO L226 Difference]: Without dead ends: 22 [2024-12-02 11:55:16,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:55:16,849 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:55:16,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 11:55:16,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-12-02 11:55:16,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-12-02 11:55:16,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:55:16,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2024-12-02 11:55:16,876 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 13 [2024-12-02 11:55:16,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:55:16,876 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2024-12-02 11:55:16,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:55:16,877 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2024-12-02 11:55:16,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-02 11:55:16,877 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:55:16,877 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:55:16,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:55:17,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:55:17,078 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:55:17,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:55:17,079 INFO L85 PathProgramCache]: Analyzing trace with hash 792769235, now seen corresponding path program 1 times [2024-12-02 11:55:17,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:55:17,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12094320] [2024-12-02 11:55:17,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:55:17,080 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 [2024-12-02 11:55:17,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:55:17,082 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 11:55:17,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 11:55:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:55:17,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 11:55:17,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:55:19,224 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:55:19,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 86 [2024-12-02 11:55:19,248 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 99 treesize of output 51 [2024-12-02 11:55:55,654 WARN L286 SmtUtils]: Spent 15.51s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 11:56:12,452 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:56:17,978 WARN L286 SmtUtils]: Spent 5.53s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:56:26,078 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:56:31,114 WARN L286 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:56:35,144 WARN L851 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|v_ULTIMATE.start_main_~main__t~0#1_18| (_ FloatingPoint 8 24)) (v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1))) (.cse0 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (= .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32))) (fp.leq |v_ULTIMATE.start_main_~main__t~0#1_18| .cse1) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |v_ULTIMATE.start_main_~main__t~0#1_18| .cse0) (fp.sub roundNearestTiesToEven .cse1 .cse0))) (_ +zero 11 53))) (= .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32))) (fp.geq |v_ULTIMATE.start_main_~main__t~0#1_18| .cse0)))) is different from false [2024-12-02 11:56:39,157 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|v_ULTIMATE.start_main_~main__t~0#1_18| (_ FloatingPoint 8 24)) (v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1))) (.cse0 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (= .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32))) (fp.leq |v_ULTIMATE.start_main_~main__t~0#1_18| .cse1) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |v_ULTIMATE.start_main_~main__t~0#1_18| .cse0) (fp.sub roundNearestTiesToEven .cse1 .cse0))) (_ +zero 11 53))) (= .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32))) (fp.geq |v_ULTIMATE.start_main_~main__t~0#1_18| .cse0)))) is different from true [2024-12-02 11:56:51,271 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:56:57,655 WARN L286 SmtUtils]: Spent 6.38s on a formula simplification. DAG size of input: 7 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:57:03,342 WARN L286 SmtUtils]: Spent 5.69s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:57:11,446 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:57:16,603 WARN L286 SmtUtils]: Spent 5.16s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:57:20,630 WARN L851 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|v_ULTIMATE.start_main_~main__t~0#1_18| (_ FloatingPoint 8 24)) (v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1))) (.cse0 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (= .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32))) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |v_ULTIMATE.start_main_~main__t~0#1_18| .cse0) (fp.sub roundNearestTiesToEven .cse1 .cse0))) (_ +zero 11 53))) (= .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32))) (fp.geq |v_ULTIMATE.start_main_~main__t~0#1_18| .cse0)))) is different from false [2024-12-02 11:57:24,644 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|v_ULTIMATE.start_main_~main__t~0#1_18| (_ FloatingPoint 8 24)) (v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1))) (.cse0 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (= .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32))) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |v_ULTIMATE.start_main_~main__t~0#1_18| .cse0) (fp.sub roundNearestTiesToEven .cse1 .cse0))) (_ +zero 11 53))) (= .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32))) (fp.geq |v_ULTIMATE.start_main_~main__t~0#1_18| .cse0)))) is different from true [2024-12-02 11:57:36,779 WARN L286 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:57:43,249 WARN L286 SmtUtils]: Spent 6.47s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:57:51,342 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:58:05,665 WARN L286 SmtUtils]: Spent 5.78s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:58:10,782 WARN L286 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:58:18,878 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:58:26,139 WARN L286 SmtUtils]: Spent 7.26s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:58:26,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:58:26,140 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:58:26,140 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:58:26,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12094320] [2024-12-02 11:58:26,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12094320] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:58:26,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:58:26,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 11:58:26,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863720000] [2024-12-02 11:58:26,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:58:26,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 11:58:26,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:58:26,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 11:58:26,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=61, Unknown=4, NotChecked=34, Total=132 [2024-12-02 11:58:26,143 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:58:27,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:58:31,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:58:33,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:58:35,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:58:36,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:58:38,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:58:41,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:58:45,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:58:49,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:58:53,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:58:56,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.36s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:59:00,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:59:04,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:59:08,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:59:12,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:59:15,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:59:19,896 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse7 (select |c_#memory_int#1| |c_ULTIMATE.start_main_~#main__max~0#1.base|))) (let ((.cse0 (let ((.cse8 (select .cse7 (_ bv0 32)))) (fp ((_ extract 31 31) .cse8) ((_ extract 30 23) .cse8) ((_ extract 22 0) .cse8)))) (.cse4 (let ((.cse6 (select .cse7 (_ bv16 32)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6)))) (.cse1 (let ((.cse5 (select (select |c_#memory_int#2| |c_ULTIMATE.start_main_~#main__min~0#1.base|) (_ bv0 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (and (fp.leq |c_ULTIMATE.start_main_~main__t~0#1| .cse0) (= |c_ULTIMATE.start_main_~#main__max~0#1.offset| (_ bv0 32)) (fp.geq |c_ULTIMATE.start_main_~main__t~0#1| .cse1) (= (_ bv0 32) |c_ULTIMATE.start_main_~main__i~0#1|) (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|v_ULTIMATE.start_main_~main__t~0#1_18| (_ FloatingPoint 8 24)) (v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1))) (.cse2 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (= .cse2 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32))) (fp.leq |v_ULTIMATE.start_main_~main__t~0#1_18| .cse3) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |v_ULTIMATE.start_main_~main__t~0#1_18| .cse2) (fp.sub roundNearestTiesToEven .cse3 .cse2))) (_ +zero 11 53))) (= .cse3 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32))) (fp.geq |v_ULTIMATE.start_main_~main__t~0#1_18| .cse2)))) (= .cse0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32))) (= .cse4 |c_ULTIMATE.start_main_#t~mem6#1|) (= (_ bv0 32) |c_ULTIMATE.start_main_~#main__min~0#1.offset|) (= .cse4 ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32))) (= .cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32))) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2024-12-02 11:59:25,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:59:29,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:59:33,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:59:37,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:59:41,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:59:45,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:59:49,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:59:53,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:59:57,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:59:59,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:00:01,393 WARN L539 Checker$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 [0] [2024-12-02 12:00:05,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:00:07,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:00:10,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:00:12,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:00:12,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:00:12,555 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2024-12-02 12:00:12,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:00:12,556 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-12-02 12:00:12,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:00:12,557 INFO L225 Difference]: With dead ends: 30 [2024-12-02 12:00:12,557 INFO L226 Difference]: Without dead ends: 25 [2024-12-02 12:00:12,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 47.4s TimeCoverageRelationStatistics Valid=35, Invalid=62, Unknown=5, NotChecked=54, Total=156 [2024-12-02 12:00:12,558 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 22 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 102.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 91 IncrementalHoareTripleChecker+Unchecked, 102.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:00:12,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 33 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 14 Unknown, 91 Unchecked, 102.3s Time] [2024-12-02 12:00:12,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-12-02 12:00:12,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2024-12-02 12:00:12,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:00:12,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2024-12-02 12:00:12,561 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 13 [2024-12-02 12:00:12,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:00:12,562 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2024-12-02 12:00:12,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:00:12,562 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2024-12-02 12:00:12,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-02 12:00:12,562 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:00:12,562 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:00:12,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 12:00:12,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 12:00:12,763 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:00:12,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:00:12,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1710804433, now seen corresponding path program 1 times [2024-12-02 12:00:12,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:00:12,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614041820] [2024-12-02 12:00:12,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:00:12,764 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 [2024-12-02 12:00:12,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:00:12,766 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 12:00:12,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 12:00:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:00:13,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 12:00:13,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:00:15,463 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:00:15,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 86 [2024-12-02 12:00:15,483 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 99 treesize of output 51 [2024-12-02 12:01:02,250 WARN L286 SmtUtils]: Spent 15.60s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 12:01:09,821 WARN L286 SmtUtils]: Spent 7.56s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:01:17,921 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:02:44,187 WARN L286 SmtUtils]: Spent 40.88s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 12:02:55,553 WARN L286 SmtUtils]: Spent 7.33s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:03:03,665 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:03:11,795 WARN L286 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:03:17,748 WARN L286 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:03:25,822 WARN L286 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:03:29,851 WARN L851 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_6 (_ BitVec 32)) (|v_ULTIMATE.start_main_~main__t~0#1_19| (_ FloatingPoint 8 24)) (v_arrayElimCell_4 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4))) (.cse1 (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6)))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |v_ULTIMATE.start_main_~main__t~0#1_19| .cse1) (fp.sub roundNearestTiesToEven .cse2 .cse1))))) (and (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32)) .cse1) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32)) .cse2) (fp.leq |v_ULTIMATE.start_main_~main__t~0#1_19| .cse2) (fp.geq .cse0 (_ +zero 11 53)))))) is different from false [2024-12-02 12:03:33,867 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_6 (_ BitVec 32)) (|v_ULTIMATE.start_main_~main__t~0#1_19| (_ FloatingPoint 8 24)) (v_arrayElimCell_4 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4))) (.cse1 (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6)))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |v_ULTIMATE.start_main_~main__t~0#1_19| .cse1) (fp.sub roundNearestTiesToEven .cse2 .cse1))))) (and (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv5 32)) .cse1) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ bv10 32)) .cse2) (fp.leq |v_ULTIMATE.start_main_~main__t~0#1_19| .cse2) (fp.geq .cse0 (_ +zero 11 53)))))) is different from true [2024-12-02 12:03:43,244 WARN L286 SmtUtils]: Spent 5.35s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:03:51,353 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:03:59,456 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:04:07,557 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:04:15,624 WARN L286 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:04:25,573 WARN L286 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:04:33,673 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:04:41,780 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:04:49,780 WARN L286 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:04:57,849 WARN L286 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:05:08,706 WARN L286 SmtUtils]: Spent 6.82s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:05:16,809 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:05:24,910 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:05:32,649 WARN L286 SmtUtils]: Spent 7.74s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:05:40,714 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:05:40,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:05:40,714 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:05:40,714 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:05:40,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614041820] [2024-12-02 12:05:40,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614041820] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:40,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:40,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 12:05:40,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052158373] [2024-12-02 12:05:40,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:40,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 12:05:40,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:05:40,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 12:05:40,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=71, Unknown=9, NotChecked=18, Total=132 [2024-12-02 12:05:40,716 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:05:44,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:05:45,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:05:47,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:05:50,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:05:53,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:05:56,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:06:00,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:01,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:06:05,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:09,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:11,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:15,471 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32))) (.cse3 ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32)))) (and (exists ((v_arrayElimCell_6 (_ BitVec 32)) (|v_ULTIMATE.start_main_~main__t~0#1_19| (_ FloatingPoint 8 24)) (v_arrayElimCell_4 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6))) (.cse1 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4)))) (and (= |c_ULTIMATE.start_main_~main__z~0#1| (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |v_ULTIMATE.start_main_~main__t~0#1_19| .cse0) (fp.sub c_currentRoundingMode .cse1 .cse0))) (= .cse2 .cse1) (= .cse3 .cse0) (fp.leq |v_ULTIMATE.start_main_~main__t~0#1_19| .cse1)))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~main__z~0#1|) (_ +zero 11 53)) (exists ((v_arrayElimCell_5 (_ BitVec 32))) (= (fp ((_ extract 31 31) v_arrayElimCell_5) ((_ extract 30 23) v_arrayElimCell_5) ((_ extract 22 0) v_arrayElimCell_5)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32)))) (exists ((v_arrayElimCell_6 (_ BitVec 32)) (|v_ULTIMATE.start_main_~main__t~0#1_19| (_ FloatingPoint 8 24)) (v_arrayElimCell_4 (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) v_arrayElimCell_6) ((_ extract 30 23) v_arrayElimCell_6) ((_ extract 22 0) v_arrayElimCell_6))) (.cse5 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4)))) (and (= |c_ULTIMATE.start_main_~main__z~0#1| (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |v_ULTIMATE.start_main_~main__t~0#1_19| .cse4) (fp.sub c_currentRoundingMode .cse5 .cse4))) (= .cse2 .cse5) (= .cse3 .cse4) (fp.geq |v_ULTIMATE.start_main_~main__t~0#1_19| .cse4) (fp.leq |v_ULTIMATE.start_main_~main__t~0#1_19| .cse5)))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2024-12-02 12:06:17,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:20,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:25,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:26,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:30,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:32,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:34,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:35,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:36,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:38,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:39,491 WARN L539 Checker$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 [0] [2024-12-02 12:06:41,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:42,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:44,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:46,979 WARN L539 Checker$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 [0] [2024-12-02 12:06:49,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:06:49,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:06:49,028 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2024-12-02 12:06:49,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:06:49,029 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-12-02 12:06:49,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:06:49,030 INFO L225 Difference]: With dead ends: 30 [2024-12-02 12:06:49,030 INFO L226 Difference]: Without dead ends: 22 [2024-12-02 12:06:49,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 127.6s TimeCoverageRelationStatistics Valid=36, Invalid=72, Unknown=10, NotChecked=38, Total=156 [2024-12-02 12:06:49,031 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 33 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 64.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:06:49,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 52 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 2 Unknown, 69 Unchecked, 64.1s Time] [2024-12-02 12:06:49,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-12-02 12:06:49,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-12-02 12:06:49,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:06:49,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2024-12-02 12:06:49,033 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 14 [2024-12-02 12:06:49,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:06:49,033 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2024-12-02 12:06:49,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:06:49,034 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2024-12-02 12:06:49,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-02 12:06:49,034 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:06:49,034 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:06:49,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-12-02 12:06:49,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 12:06:49,235 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:06:49,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:06:49,235 INFO L85 PathProgramCache]: Analyzing trace with hash -252887217, now seen corresponding path program 1 times [2024-12-02 12:06:49,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:06:49,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902069575] [2024-12-02 12:06:49,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:06:49,236 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 [2024-12-02 12:06:49,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:06:49,238 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 12:06:49,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 12:06:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:06:49,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 12:06:49,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:06:52,749 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:06:52,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 179 treesize of output 107 [2024-12-02 12:06:52,776 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 78 treesize of output 42 [2024-12-02 12:07:06,110 WARN L286 SmtUtils]: Spent 7.06s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:07:43,968 WARN L286 SmtUtils]: Spent 20.29s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 12:07:54,857 WARN L286 SmtUtils]: Spent 6.87s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 12:07:57,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:07:57,901 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:07:57,901 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:07:57,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902069575] [2024-12-02 12:07:57,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902069575] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:07:57,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:07:57,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 12:07:57,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121958115] [2024-12-02 12:07:57,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:07:57,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 12:07:57,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:07:57,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 12:07:57,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:07:57,906 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:08:00,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:03,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:05,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:06,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:07,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:11,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:17,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.97s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:18,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:20,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:21,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:25,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:29,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:33,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:37,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:41,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:45,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:49,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:53,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:08:57,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:09:01,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:09:05,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:09:07,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:09:08,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:09:09,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:09:11,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:09:12,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:09:12,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:09:12,554 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2024-12-02 12:09:12,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:09:12,556 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-12-02 12:09:12,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:09:12,556 INFO L225 Difference]: With dead ends: 30 [2024-12-02 12:09:12,556 INFO L226 Difference]: Without dead ends: 25 [2024-12-02 12:09:12,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 38.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:09:12,557 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 20 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:09:12,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 30 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 11 Unknown, 0 Unchecked, 74.6s Time] [2024-12-02 12:09:12,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-12-02 12:09:12,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2024-12-02 12:09:12,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:09:12,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2024-12-02 12:09:12,559 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 15 [2024-12-02 12:09:12,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:09:12,559 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2024-12-02 12:09:12,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:09:12,559 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-12-02 12:09:12,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-02 12:09:12,560 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:09:12,560 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:09:12,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 12:09:12,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 12:09:12,760 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:09:12,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:09:12,761 INFO L85 PathProgramCache]: Analyzing trace with hash 233583923, now seen corresponding path program 1 times [2024-12-02 12:09:12,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:09:12,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659047769] [2024-12-02 12:09:12,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:09:12,761 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 [2024-12-02 12:09:12,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:09:12,763 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 12:09:12,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74867028-0f46-4a62-99f6-113352400fbd/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 12:09:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:09:13,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 12:09:13,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:09:16,682 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:09:16,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 179 treesize of output 107 [2024-12-02 12:09:16,739 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:09:16,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 53 [2024-12-02 12:10:08,322 WARN L286 SmtUtils]: Spent 18.46s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)