./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd --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 3d80131755697383884f625dd9587f1c200aa06d2b7c943b2856d52f75da1766 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:22:55,767 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:22:55,869 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 16:22:55,877 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:22:55,877 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:22:55,900 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:22:55,901 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:22:55,901 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:22:55,902 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:22:55,902 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:22:55,902 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:22:55,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:22:55,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:22:55,903 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:22:55,903 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:22:55,903 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:22:55,904 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:22:55,904 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:22:55,904 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:22:55,904 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:22:55,904 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:22:55,904 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:22:55,905 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:22:55,905 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:22:55,905 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:22:55,905 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:22:55,905 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:22:55,905 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:22:55,906 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:22:55,906 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:22:55,906 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:22:55,906 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:22:55,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:22:55,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:22:55,907 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:22:55,907 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:22:55,907 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:22:55,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:22:55,907 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:22:55,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:22:55,908 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:22:55,908 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:22:55,908 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_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd 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 -> 3d80131755697383884f625dd9587f1c200aa06d2b7c943b2856d52f75da1766 [2024-11-13 16:22:56,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:22:56,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:22:56,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:22:56,258 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:22:56,259 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:22:56,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c Unable to find full path for "g++" [2024-11-13 16:22:58,205 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:22:58,521 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:22:58,528 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2024-11-13 16:22:58,556 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/data/6a06a6ce1/ae786eca48024c10b72682e8aae9ef9b/FLAG6e304f530 [2024-11-13 16:22:58,583 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/data/6a06a6ce1/ae786eca48024c10b72682e8aae9ef9b [2024-11-13 16:22:58,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:22:58,591 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:22:58,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:22:58,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:22:58,599 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:22:58,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:22:58" (1/1) ... [2024-11-13 16:22:58,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1368b064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:22:58, skipping insertion in model container [2024-11-13 16:22:58,603 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:22:58" (1/1) ... [2024-11-13 16:22:58,623 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:22:58,841 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_98b1609a-fff7-4e9a-8e20-0605da19e817/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2024-11-13 16:22:58,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:22:58,867 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:22:58,891 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_98b1609a-fff7-4e9a-8e20-0605da19e817/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2024-11-13 16:22:58,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:22:58,918 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:22:58,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:22:58 WrapperNode [2024-11-13 16:22:58,921 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:22:58,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:22:58,923 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:22:58,924 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:22:58,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:22:58" (1/1) ... [2024-11-13 16:22:58,939 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:22:58" (1/1) ... [2024-11-13 16:22:58,958 INFO L138 Inliner]: procedures = 18, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 72 [2024-11-13 16:22:58,960 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:22:58,961 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:22:58,961 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:22:58,961 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:22:58,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:22:58" (1/1) ... [2024-11-13 16:22:58,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:22:58" (1/1) ... [2024-11-13 16:22:58,974 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:22:58" (1/1) ... [2024-11-13 16:22:58,987 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-11-13 16:22:58,987 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:22:58" (1/1) ... [2024-11-13 16:22:58,988 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:22:58" (1/1) ... [2024-11-13 16:22:58,997 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:22:58" (1/1) ... [2024-11-13 16:22:58,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:22:58" (1/1) ... [2024-11-13 16:22:59,001 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:22:58" (1/1) ... [2024-11-13 16:22:59,002 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:22:58" (1/1) ... [2024-11-13 16:22:59,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:22:59,004 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:22:59,004 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:22:59,005 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:22:59,006 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:22:58" (1/1) ... [2024-11-13 16:22:59,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:22:59,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:22:59,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:22:59,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:22:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:22:59,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:22:59,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 16:22:59,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:22:59,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-13 16:22:59,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-13 16:22:59,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 16:22:59,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 16:22:59,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-13 16:22:59,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-13 16:22:59,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:22:59,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:22:59,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 16:22:59,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 16:22:59,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:22:59,193 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:22:59,196 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:22:59,379 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-13 16:22:59,382 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:22:59,395 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:22:59,395 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 16:22:59,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:22:59 BoogieIcfgContainer [2024-11-13 16:22:59,396 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:22:59,400 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:22:59,401 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:22:59,406 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:22:59,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:22:58" (1/3) ... [2024-11-13 16:22:59,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e435957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:22:59, skipping insertion in model container [2024-11-13 16:22:59,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:22:58" (2/3) ... [2024-11-13 16:22:59,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e435957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:22:59, skipping insertion in model container [2024-11-13 16:22:59,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:22:59" (3/3) ... [2024-11-13 16:22:59,411 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c.v+cfa-reducer.c [2024-11-13 16:22:59,429 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:22:59,431 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG inv_sqrt_Quake.c.v+cfa-reducer.c that has 1 procedures, 15 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-13 16:22:59,509 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:22:59,531 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;@4aac575e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:22:59,532 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 16:22:59,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 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) [2024-11-13 16:22:59,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 16:22:59,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:22:59,544 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:22:59,545 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:22:59,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:22:59,554 INFO L85 PathProgramCache]: Analyzing trace with hash -2137295023, now seen corresponding path program 1 times [2024-11-13 16:22:59,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:22:59,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43124820] [2024-11-13 16:22:59,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:22:59,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:22:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:22:59,721 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:22:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:22:59,777 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:22:59,780 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 16:22:59,781 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 16:22:59,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:22:59,790 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-13 16:22:59,818 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 16:22:59,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 04:22:59 BoogieIcfgContainer [2024-11-13 16:22:59,822 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 16:22:59,823 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:22:59,823 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:22:59,823 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:22:59,824 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:22:59" (3/4) ... [2024-11-13 16:22:59,828 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:22:59,829 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:22:59,830 INFO L158 Benchmark]: Toolchain (without parser) took 1238.90ms. Allocated memory is still 142.6MB. Free memory was 119.5MB in the beginning and 79.5MB in the end (delta: 39.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 16:22:59,830 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 105.0MB in the end (delta: 209.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:22:59,831 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.62ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 107.8MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:22:59,831 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.25ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 106.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:22:59,832 INFO L158 Benchmark]: Boogie Preprocessor took 42.55ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 105.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:22:59,832 INFO L158 Benchmark]: RCFGBuilder took 391.96ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 94.2MB in the end (delta: 10.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:22:59,832 INFO L158 Benchmark]: TraceAbstraction took 422.09ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 79.9MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:22:59,833 INFO L158 Benchmark]: Witness Printer took 5.69ms. Allocated memory is still 142.6MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:22:59,835 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 105.0MB in the end (delta: 209.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.62ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 107.8MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.25ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 106.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.55ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 105.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 391.96ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 94.2MB in the end (delta: 10.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 422.09ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 79.9MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 5.69ms. Allocated memory is still 142.6MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 59]: 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 someBinaryArithmeticDOUBLEoperation at line 37, overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of someBinaryDOUBLEComparisonOperation at line 25. Possible FailurePath: [L1] int __return_main; [L17] float __return_72; [L18] int __return_87; VAL [__return_72=0, __return_87=0, __return_main=0] [L21] float main__a; [L22] float main__r; [L23] main__a = __VERIFIER_nondet_float() [L24] int main____CPAchecker_TMP_0; VAL [__return_72=0, __return_87=0, __return_main=0] [L25] COND TRUE main__a >= 0.10000000149011612 VAL [__return_72=0, __return_87=0, __return_main=0] [L27] COND TRUE main__a <= 100.0 [L29] main____CPAchecker_TMP_0 = 1 VAL [__return_72=0, __return_87=0, __return_main=0, main____CPAchecker_TMP_0=1] [L30] COND TRUE main____CPAchecker_TMP_0 != 0 [L33] float __tmp_1; [L34] __tmp_1 = main__a [L35] float InvSqrt__x; [L36] InvSqrt__x = __tmp_1 [L37] float InvSqrt__xhalf = 0.5 * InvSqrt__x; [L38] union float_int InvSqrt__i; [L39] InvSqrt__i.f = InvSqrt__x [L40] EXPR InvSqrt__i.i [L40] InvSqrt__i.i = 1597463007 - ((InvSqrt__i.i) >> 1) [L41] EXPR InvSqrt__i.f [L41] InvSqrt__x = InvSqrt__i.f [L42] InvSqrt__x = InvSqrt__x * (1.5 - ((InvSqrt__xhalf * InvSqrt__x) * InvSqrt__x)) [L43] __return_72 = InvSqrt__x [L44] main__r = __return_72 [L45] int main____CPAchecker_TMP_1; VAL [__return_72=1597463016, __return_87=0, __return_main=0] [L46] COND FALSE !(main__r >= 0.0) VAL [__return_72=1597463016, __return_87=0, __return_main=0] [L72] main____CPAchecker_TMP_1 = 0 VAL [__return_72=1597463016, __return_87=0, __return_main=0, main____CPAchecker_TMP_1=0] [L53] int __tmp_2; [L54] __tmp_2 = main____CPAchecker_TMP_1 [L55] int __VERIFIER_assert__cond; [L56] __VERIFIER_assert__cond = __tmp_2 VAL [__VERIFIER_assert__cond=0, __return_72=1597463016, __return_87=0, __return_main=0] [L57] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_72=1597463016, __return_87=0, __return_main=0] [L59] reach_error() VAL [__return_72=1597463016, __return_87=0, __return_main=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 16:22:59,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/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_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd --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 3d80131755697383884f625dd9587f1c200aa06d2b7c943b2856d52f75da1766 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:23:02,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:23:02,711 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 16:23:02,717 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:23:02,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:23:02,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:23:02,743 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:23:02,744 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:23:02,744 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:23:02,744 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:23:02,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:23:02,745 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:23:02,745 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:23:02,745 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:23:02,746 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:23:02,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:23:02,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:23:02,746 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:23:02,746 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:23:02,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:23:02,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:23:02,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:23:02,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:23:02,747 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 16:23:02,747 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 16:23:02,747 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:23:02,747 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 16:23:02,748 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:23:02,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:23:02,748 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:23:02,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:23:02,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:23:02,748 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:23:02,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:23:02,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:23:02,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:23:02,749 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:23:02,749 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:23:02,749 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 16:23:02,749 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 16:23:02,750 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:23:02,750 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:23:02,750 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:23:02,750 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:23:02,750 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_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd 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 -> 3d80131755697383884f625dd9587f1c200aa06d2b7c943b2856d52f75da1766 [2024-11-13 16:23:03,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:23:03,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:23:03,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:23:03,179 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:23:03,179 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:23:03,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c Unable to find full path for "g++" [2024-11-13 16:23:05,199 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:23:05,453 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:23:05,454 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2024-11-13 16:23:05,465 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/data/cfb0665cd/ca9fad9007254a469da9d1b32171ec14/FLAGce6d89f1a [2024-11-13 16:23:05,771 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/data/cfb0665cd/ca9fad9007254a469da9d1b32171ec14 [2024-11-13 16:23:05,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:23:05,777 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:23:05,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:23:05,780 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:23:05,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:23:05,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:23:05" (1/1) ... [2024-11-13 16:23:05,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e203584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:05, skipping insertion in model container [2024-11-13 16:23:05,790 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:23:05" (1/1) ... [2024-11-13 16:23:05,810 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:23:06,023 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_98b1609a-fff7-4e9a-8e20-0605da19e817/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2024-11-13 16:23:06,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:23:06,059 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:23:06,088 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_98b1609a-fff7-4e9a-8e20-0605da19e817/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2024-11-13 16:23:06,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:23:06,119 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:23:06,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:06 WrapperNode [2024-11-13 16:23:06,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:23:06,122 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:23:06,122 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:23:06,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:23:06,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:06" (1/1) ... [2024-11-13 16:23:06,146 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:06" (1/1) ... [2024-11-13 16:23:06,170 INFO L138 Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2024-11-13 16:23:06,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:23:06,174 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:23:06,174 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:23:06,174 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:23:06,183 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:06" (1/1) ... [2024-11-13 16:23:06,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:06" (1/1) ... [2024-11-13 16:23:06,188 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:06" (1/1) ... [2024-11-13 16:23:06,208 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-11-13 16:23:06,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:06" (1/1) ... [2024-11-13 16:23:06,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:06" (1/1) ... [2024-11-13 16:23:06,221 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:06" (1/1) ... [2024-11-13 16:23:06,227 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:06" (1/1) ... [2024-11-13 16:23:06,231 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:06" (1/1) ... [2024-11-13 16:23:06,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:06" (1/1) ... [2024-11-13 16:23:06,239 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:23:06,240 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:23:06,240 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:23:06,240 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:23:06,241 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:06" (1/1) ... [2024-11-13 16:23:06,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:23:06,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:23:06,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:23:06,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:23:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:23:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 16:23:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 16:23:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:23:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-13 16:23:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-13 16:23:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-13 16:23:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-13 16:23:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:23:06,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:23:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-13 16:23:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-13 16:23:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:23:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-13 16:23:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-13 16:23:06,385 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:23:06,387 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:23:11,041 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-13 16:23:11,042 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:23:11,054 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:23:11,056 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 16:23:11,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:23:11 BoogieIcfgContainer [2024-11-13 16:23:11,056 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:23:11,059 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:23:11,059 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:23:11,064 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:23:11,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:23:05" (1/3) ... [2024-11-13 16:23:11,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7954c0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:23:11, skipping insertion in model container [2024-11-13 16:23:11,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:23:06" (2/3) ... [2024-11-13 16:23:11,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7954c0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:23:11, skipping insertion in model container [2024-11-13 16:23:11,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:23:11" (3/3) ... [2024-11-13 16:23:11,067 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c.v+cfa-reducer.c [2024-11-13 16:23:11,084 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:23:11,086 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG inv_sqrt_Quake.c.v+cfa-reducer.c that has 1 procedures, 15 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-13 16:23:11,144 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:23:11,158 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;@76c0bb83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:23:11,158 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 16:23:11,162 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 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) [2024-11-13 16:23:11,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 16:23:11,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:23:11,169 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:23:11,170 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:23:11,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:23:11,175 INFO L85 PathProgramCache]: Analyzing trace with hash -2137295023, now seen corresponding path program 1 times [2024-11-13 16:23:11,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:23:11,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40784215] [2024-11-13 16:23:11,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:23:11,189 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 16:23:11,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 16:23:11,194 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 16:23:11,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-13 16:23:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:23:14,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 16:23:14,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:23:26,607 WARN L286 SmtUtils]: Spent 8.36s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:23:35,024 WARN L286 SmtUtils]: Spent 8.42s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:23:43,221 WARN L286 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:23:47,349 WARN L851 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_10 (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (fp ((_ extract 31 31) v_ArrVal_10) ((_ extract 30 23) v_ArrVal_10) ((_ extract 22 0) v_ArrVal_10))))) (and (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 100.0)) (= |c_ULTIMATE.start_main_~main__r~0#1| ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (_ bv1597463007 32) (bvneg (bvashr v_ArrVal_10 (_ bv1 32)))))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse1) (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) .cse0)) .cse1) .cse1)))))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2024-11-13 16:23:59,733 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:24:08,154 WARN L286 SmtUtils]: Spent 8.42s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:24:16,589 WARN L286 SmtUtils]: Spent 8.43s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:24:20,710 WARN L851 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_10 (_ BitVec 32))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) v_ArrVal_10) ((_ extract 30 23) v_ArrVal_10) ((_ extract 22 0) v_ArrVal_10))))) (and (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (let ((.cse0 (let ((.cse2 (bvadd (_ bv1597463007 32) (bvneg (bvashr v_ArrVal_10 (_ bv1 32)))))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse0) (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)) .cse1)) .cse0) .cse0))))))) (_ +zero 11 53))) (fp.geq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 2500000037252903.0 25000000000000000.0))) (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 100.0))))) is different from false [2024-11-13 16:24:24,777 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_10 (_ BitVec 32))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) v_ArrVal_10) ((_ extract 30 23) v_ArrVal_10) ((_ extract 22 0) v_ArrVal_10))))) (and (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (let ((.cse0 (let ((.cse2 (bvadd (_ bv1597463007 32) (bvneg (bvashr v_ArrVal_10 (_ bv1 32)))))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse0) (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)) .cse1)) .cse0) .cse0))))))) (_ +zero 11 53))) (fp.geq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 2500000037252903.0 25000000000000000.0))) (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 100.0))))) is different from true [2024-11-13 16:24:37,109 WARN L286 SmtUtils]: Spent 8.22s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:24:45,458 WARN L286 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:24:53,804 WARN L286 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:25:06,153 WARN L286 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:25:14,506 WARN L286 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:25:22,808 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:25:35,111 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:25:43,414 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:25:51,773 WARN L286 SmtUtils]: Spent 8.36s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:25:51,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:25:51,780 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:25:51,781 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:25:51,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40784215] [2024-11-13 16:25:51,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40784215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:51,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:51,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:25:51,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912571635] [2024-11-13 16:25:51,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:51,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:25:51,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:25:51,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:25:51,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=11, Unknown=3, NotChecked=14, Total=42 [2024-11-13 16:25:51,807 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 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 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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) [2024-11-13 16:25:57,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 16:26:01,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 16:26:05,194 WARN L539 Checker$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 [] [2024-11-13 16:26:05,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:26:05,839 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2024-11-13 16:26:05,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:26:05,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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 10 [2024-11-13 16:26:05,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:26:05,855 INFO L225 Difference]: With dead ends: 27 [2024-11-13 16:26:05,855 INFO L226 Difference]: Without dead ends: 12 [2024-11-13 16:26:05,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=14, Invalid=11, Unknown=3, NotChecked=14, Total=42 [2024-11-13 16:26:05,860 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:26:05,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 27 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 3 Unknown, 65 Unchecked, 14.0s Time] [2024-11-13 16:26:05,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-13 16:26:05,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-13 16:26:05,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2024-11-13 16:26:05,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-13 16:26:05,892 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2024-11-13 16:26:05,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:26:05,893 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-13 16:26:05,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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) [2024-11-13 16:26:05,893 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-13 16:26:05,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 16:26:05,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:26:05,893 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:26:05,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-13 16:26:06,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 16:26:06,094 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:26:06,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:26:06,095 INFO L85 PathProgramCache]: Analyzing trace with hash 2140661612, now seen corresponding path program 1 times [2024-11-13 16:26:06,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:26:06,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431466420] [2024-11-13 16:26:06,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:26:06,096 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 16:26:06,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 16:26:06,097 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 16:26:06,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-13 16:26:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:26:06,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:26:06,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:26:06,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:26:06,738 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:26:06,739 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:26:06,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431466420] [2024-11-13 16:26:06,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431466420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:26:06,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:26:06,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:26:06,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780332510] [2024-11-13 16:26:06,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:26:06,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:26:06,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:26:06,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:26:06,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:26:06,742 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-13 16:26:10,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 16:26:11,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:26:11,063 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2024-11-13 16:26:11,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:26:11,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-11-13 16:26:11,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:26:11,064 INFO L225 Difference]: With dead ends: 16 [2024-11-13 16:26:11,064 INFO L226 Difference]: Without dead ends: 12 [2024-11-13 16:26:11,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:26:11,066 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:26:11,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-13 16:26:11,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-13 16:26:11,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-13 16:26:11,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 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) [2024-11-13 16:26:11,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2024-11-13 16:26:11,069 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2024-11-13 16:26:11,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:26:11,069 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2024-11-13 16:26:11,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-13 16:26:11,070 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2024-11-13 16:26:11,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 16:26:11,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:26:11,070 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:26:11,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-13 16:26:11,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 16:26:11,271 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:26:11,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:26:11,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1946484073, now seen corresponding path program 1 times [2024-11-13 16:26:11,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:26:11,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [854742726] [2024-11-13 16:26:11,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:26:11,272 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 16:26:11,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 16:26:11,274 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 16:26:11,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-13 16:26:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:26:13,022 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 16:26:13,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:26:23,641 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:26:31,947 WARN L286 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:26:40,507 WARN L286 SmtUtils]: Spent 8.56s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:26:44,639 WARN L851 $PredicateComparison]: unable to prove that (and (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_8|))))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 100.0)) (= ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_8| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse1) (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) .cse0)) .cse1) .cse1)))))) |c_ULTIMATE.start_main_~main__r~0#1|) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2024-11-13 16:26:48,712 WARN L873 $PredicateComparison]: unable to prove that (and (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_8|))))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 100.0)) (= ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_8| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse1) (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) .cse0)) .cse1) .cse1)))))) |c_ULTIMATE.start_main_~main__r~0#1|) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2024-11-13 16:26:56,961 WARN L286 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:27:05,370 WARN L286 SmtUtils]: Spent 8.41s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:27:13,868 WARN L286 SmtUtils]: Spent 8.50s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:27:18,304 WARN L851 $PredicateComparison]: unable to prove that (and (fp.geq ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~main__r~0#1|) (_ +zero 11 53)) (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_8|))))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 100.0)) (= ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_8| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse1) (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) .cse0)) .cse1) .cse1)))))) |c_ULTIMATE.start_main_~main__r~0#1|) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2024-11-13 16:27:30,931 WARN L286 SmtUtils]: Spent 8.39s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:27:39,331 WARN L286 SmtUtils]: Spent 8.40s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:27:47,803 WARN L286 SmtUtils]: Spent 8.47s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:27:56,201 WARN L286 SmtUtils]: Spent 8.40s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:28:00,288 WARN L851 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_8|))))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_8| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse2) (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)) .cse0)) .cse2) .cse2))))))))) (and (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 100.0)) (fp.geq .cse1 (_ +zero 11 53)) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 2500000037252903.0 25000000000000000.0))) (not (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))))) is different from false [2024-11-13 16:28:04,344 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_8|))))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_8| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse2) (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)) .cse0)) .cse2) .cse2))))))))) (and (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 100.0)) (fp.geq .cse1 (_ +zero 11 53)) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 2500000037252903.0 25000000000000000.0))) (not (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))))) is different from true [2024-11-13 16:28:16,750 WARN L286 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:28:25,055 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:28:33,375 WARN L286 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:28:41,697 WARN L286 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:28:54,088 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:29:02,393 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:29:10,709 WARN L286 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:29:19,017 WARN L286 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:29:31,418 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:29:39,712 WARN L286 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:29:48,022 WARN L286 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:29:56,335 WARN L286 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 16:29:56,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:29:56,335 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:29:56,336 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:29:56,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [854742726] [2024-11-13 16:29:56,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [854742726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:29:56,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:29:56,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 16:29:56,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402465859] [2024-11-13 16:29:56,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:29:56,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 16:29:56,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:29:56,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 16:29:56,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=11, Unknown=5, NotChecked=24, Total=56 [2024-11-13 16:29:56,337 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2024-11-13 16:30:00,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 16:30:04,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 16:30:08,822 WARN L539 Checker$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 [] [2024-11-13 16:30:08,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:30:08,824 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2024-11-13 16:30:08,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 16:30:08,897 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 11 [2024-11-13 16:30:08,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:30:08,897 INFO L225 Difference]: With dead ends: 12 [2024-11-13 16:30:08,897 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 16:30:08,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.3s TimeCoverageRelationStatistics Valid=16, Invalid=11, Unknown=5, NotChecked=24, Total=56 [2024-11-13 16:30:08,898 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:30:08,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 3 Unknown, 44 Unchecked, 12.5s Time] [2024-11-13 16:30:08,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 16:30:08,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 16:30:08,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-13 16:30:08,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 16:30:08,900 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2024-11-13 16:30:08,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:30:08,900 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 16:30:08,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2024-11-13 16:30:08,900 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 16:30:08,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 16:30:08,902 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 16:30:08,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 16:30:09,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 16:30:09,106 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-13 16:30:09,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 16:30:09,113 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 16:30:09,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 04:30:09 BoogieIcfgContainer [2024-11-13 16:30:09,119 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 16:30:09,120 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:30:09,120 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:30:09,120 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:30:09,121 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:23:11" (3/4) ... [2024-11-13 16:30:09,123 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 16:30:09,129 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-13 16:30:09,130 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-13 16:30:09,130 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 16:30:09,130 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 16:30:09,195 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 16:30:09,195 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 16:30:09,195 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:30:09,196 INFO L158 Benchmark]: Toolchain (without parser) took 423419.85ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 47.7MB in the end (delta: 45.7MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. [2024-11-13 16:30:09,197 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:30:09,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.74ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 81.2MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:30:09,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.11ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:30:09,198 INFO L158 Benchmark]: Boogie Preprocessor took 65.39ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.1MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:30:09,198 INFO L158 Benchmark]: RCFGBuilder took 4816.46ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 66.5MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:30:09,199 INFO L158 Benchmark]: TraceAbstraction took 418060.04ms. Allocated memory is still 117.4MB. Free memory was 65.9MB in the beginning and 52.7MB in the end (delta: 13.2MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2024-11-13 16:30:09,199 INFO L158 Benchmark]: Witness Printer took 75.80ms. Allocated memory is still 117.4MB. Free memory was 52.7MB in the beginning and 47.7MB in the end (delta: 4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:30:09,201 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.74ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 81.2MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.11ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 65.39ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.1MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 4816.46ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 66.5MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 418060.04ms. Allocated memory is still 117.4MB. Free memory was 65.9MB in the beginning and 52.7MB in the end (delta: 13.2MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Witness Printer took 75.80ms. Allocated memory is still 117.4MB. Free memory was 52.7MB in the beginning and 47.7MB in the end (delta: 4.9MB). Peak memory consumption was 8.4MB. 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 - PositiveResult [Line: 59]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 418.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 31.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 30.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 30.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 109 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 26 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 19, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 5.0s SatisfiabilityAnalysisTime, 381.1s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 11 QuantifiedInterpolants, 1963 SizeOfPredicates, 8 NumberOfNonLiveVariables, 143 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 16:30:09,418 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-11-13 16:30:09,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b1609a-fff7-4e9a-8e20-0605da19e817/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE