./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 a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/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_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX --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 0.2.5-dev-a016563 [2024-11-08 16:19:59,067 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:19:59,177 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:19:59,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:19:59,183 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:19:59,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:19:59,214 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:19:59,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:19:59,219 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:19:59,220 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:19:59,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:19:59,221 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:19:59,222 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:19:59,222 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:19:59,223 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:19:59,223 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:19:59,224 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:19:59,225 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:19:59,225 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:19:59,226 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:19:59,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:19:59,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:19:59,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:19:59,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:19:59,228 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:19:59,228 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:19:59,229 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:19:59,229 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:19:59,230 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:19:59,230 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:19:59,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:19:59,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:19:59,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:19:59,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:19:59,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:19:59,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:19:59,233 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:19:59,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:19:59,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:19:59,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:19:59,235 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:19:59,235 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:19:59,236 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d80131755697383884f625dd9587f1c200aa06d2b7c943b2856d52f75da1766 [2024-11-08 16:19:59,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:19:59,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:19:59,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:19:59,647 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:19:59,648 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:19:59,649 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c Unable to find full path for "g++" [2024-11-08 16:20:02,097 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:20:02,368 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:20:02,370 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2024-11-08 16:20:02,388 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/data/a11aef4d1/ede45a648e4b4024b4a9d5e1f61e2ada/FLAG274e0ad3a [2024-11-08 16:20:02,415 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/data/a11aef4d1/ede45a648e4b4024b4a9d5e1f61e2ada [2024-11-08 16:20:02,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:20:02,420 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:20:02,421 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:20:02,422 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:20:02,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:20:02,434 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:20:02" (1/1) ... [2024-11-08 16:20:02,435 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46ad77a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:02, skipping insertion in model container [2024-11-08 16:20:02,435 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:20:02" (1/1) ... [2024-11-08 16:20:02,465 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:20:02,797 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_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2024-11-08 16:20:02,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:20:02,837 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:20:02,875 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_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2024-11-08 16:20:02,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:20:02,908 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:20:02,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:02 WrapperNode [2024-11-08 16:20:02,909 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:20:02,911 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:20:02,911 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:20:02,911 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:20:02,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:02" (1/1) ... [2024-11-08 16:20:02,932 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:02" (1/1) ... [2024-11-08 16:20:02,957 INFO L138 Inliner]: procedures = 18, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 72 [2024-11-08 16:20:02,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:20:02,960 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:20:02,961 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:20:02,961 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:20:02,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:02" (1/1) ... [2024-11-08 16:20:02,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:02" (1/1) ... [2024-11-08 16:20:02,977 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:02" (1/1) ... [2024-11-08 16:20:03,006 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]. [2024-11-08 16:20:03,006 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:02" (1/1) ... [2024-11-08 16:20:03,007 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:02" (1/1) ... [2024-11-08 16:20:03,018 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:02" (1/1) ... [2024-11-08 16:20:03,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:02" (1/1) ... [2024-11-08 16:20:03,029 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:02" (1/1) ... [2024-11-08 16:20:03,030 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:02" (1/1) ... [2024-11-08 16:20:03,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:20:03,037 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:20:03,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:20:03,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:20:03,042 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:02" (1/1) ... [2024-11-08 16:20:03,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:20:03,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:20:03,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:20:03,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:20:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:20:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:20:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:20:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:20:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-08 16:20:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-08 16:20:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:20:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:20:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-08 16:20:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-08 16:20:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:20:03,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:20:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:20:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:20:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:20:03,257 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:20:03,262 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:20:03,422 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-08 16:20:03,422 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:20:03,439 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:20:03,440 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:20:03,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:20:03 BoogieIcfgContainer [2024-11-08 16:20:03,441 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:20:03,444 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:20:03,444 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:20:03,449 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:20:03,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:20:02" (1/3) ... [2024-11-08 16:20:03,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbfd849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:20:03, skipping insertion in model container [2024-11-08 16:20:03,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:02" (2/3) ... [2024-11-08 16:20:03,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbfd849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:20:03, skipping insertion in model container [2024-11-08 16:20:03,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:20:03" (3/3) ... [2024-11-08 16:20:03,453 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c.v+cfa-reducer.c [2024-11-08 16:20:03,480 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:20:03,480 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:20:03,552 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:20:03,563 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;@53b1a3af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:20:03,564 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:20:03,569 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) [2024-11-08 16:20:03,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 16:20:03,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:03,579 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:20:03,580 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:03,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:03,588 INFO L85 PathProgramCache]: Analyzing trace with hash -2137295023, now seen corresponding path program 1 times [2024-11-08 16:20:03,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:20:03,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879776732] [2024-11-08 16:20:03,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:03,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:20:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:20:03,825 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:20:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:20:03,876 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:20:03,879 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:20:03,881 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 16:20:03,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:20:03,890 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 16:20:03,928 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:20:03,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:20:03 BoogieIcfgContainer [2024-11-08 16:20:03,935 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:20:03,936 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:20:03,937 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:20:03,938 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:20:03,939 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:20:03" (3/4) ... [2024-11-08 16:20:03,943 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 16:20:03,945 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:20:03,947 INFO L158 Benchmark]: Toolchain (without parser) took 1526.26ms. Allocated memory was 113.2MB in the beginning and 157.3MB in the end (delta: 44.0MB). Free memory was 75.9MB in the beginning and 121.8MB in the end (delta: -45.9MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2024-11-08 16:20:03,948 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 113.2MB. Free memory was 84.3MB in the beginning and 84.2MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:20:03,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 488.39ms. Allocated memory is still 113.2MB. Free memory was 75.4MB in the beginning and 62.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 16:20:03,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.93ms. Allocated memory is still 113.2MB. Free memory was 62.4MB in the beginning and 60.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:20:03,952 INFO L158 Benchmark]: Boogie Preprocessor took 75.94ms. Allocated memory is still 113.2MB. Free memory was 60.7MB in the beginning and 58.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:20:03,954 INFO L158 Benchmark]: RCFGBuilder took 404.54ms. Allocated memory is still 113.2MB. Free memory was 58.6MB in the beginning and 47.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 16:20:03,955 INFO L158 Benchmark]: TraceAbstraction took 491.61ms. Allocated memory was 113.2MB in the beginning and 157.3MB in the end (delta: 44.0MB). Free memory was 46.9MB in the beginning and 121.8MB in the end (delta: -74.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:20:03,956 INFO L158 Benchmark]: Witness Printer took 8.70ms. Allocated memory is still 157.3MB. Free memory was 121.8MB in the beginning and 121.8MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:20:03,964 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 113.2MB. Free memory was 84.3MB in the beginning and 84.2MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 488.39ms. Allocated memory is still 113.2MB. Free memory was 75.4MB in the beginning and 62.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.93ms. Allocated memory is still 113.2MB. Free memory was 62.4MB in the beginning and 60.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.94ms. Allocated memory is still 113.2MB. Free memory was 60.7MB in the beginning and 58.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 404.54ms. Allocated memory is still 113.2MB. Free memory was 58.6MB in the beginning and 47.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 491.61ms. Allocated memory was 113.2MB in the beginning and 157.3MB in the end (delta: 44.0MB). Free memory was 46.9MB in the beginning and 121.8MB in the end (delta: -74.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.70ms. Allocated memory is still 157.3MB. Free memory was 121.8MB in the beginning and 121.8MB in the end (delta: 2.6kB). 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 someBinaryDOUBLEComparisonOperation at line 46, overapproximation of someBinaryArithmeticDOUBLEoperation at line 37. 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: 0.4s, 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 [2024-11-08 16:20:04,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/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_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX --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 0.2.5-dev-a016563 [2024-11-08 16:20:07,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:20:07,167 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 16:20:07,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:20:07,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:20:07,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:20:07,221 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:20:07,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:20:07,222 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:20:07,224 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:20:07,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:20:07,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:20:07,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:20:07,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:20:07,228 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:20:07,229 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:20:07,229 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:20:07,230 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:20:07,230 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:20:07,230 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:20:07,231 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:20:07,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:20:07,238 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:20:07,238 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 16:20:07,239 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 16:20:07,239 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:20:07,239 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 16:20:07,240 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:20:07,240 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:20:07,240 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:20:07,241 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:20:07,241 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:20:07,241 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:20:07,242 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:20:07,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:20:07,242 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:20:07,243 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:20:07,243 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:20:07,243 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 16:20:07,243 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 16:20:07,245 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:20:07,246 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:20:07,246 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:20:07,246 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:20:07,247 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d80131755697383884f625dd9587f1c200aa06d2b7c943b2856d52f75da1766 [2024-11-08 16:20:07,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:20:07,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:20:07,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:20:07,765 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:20:07,765 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:20:07,767 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c Unable to find full path for "g++" [2024-11-08 16:20:10,202 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:20:10,490 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:20:10,491 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2024-11-08 16:20:10,504 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/data/1f53c8802/80b80202ad664d43b65fe3ce38c570a4/FLAGd628e7b31 [2024-11-08 16:20:10,521 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/data/1f53c8802/80b80202ad664d43b65fe3ce38c570a4 [2024-11-08 16:20:10,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:20:10,527 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:20:10,529 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:20:10,529 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:20:10,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:20:10,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:20:10" (1/1) ... [2024-11-08 16:20:10,539 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a0c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:10, skipping insertion in model container [2024-11-08 16:20:10,539 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:20:10" (1/1) ... [2024-11-08 16:20:10,567 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:20:10,904 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_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2024-11-08 16:20:10,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:20:10,943 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:20:10,979 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_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2024-11-08 16:20:10,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:20:11,017 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:20:11,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:11 WrapperNode [2024-11-08 16:20:11,017 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:20:11,020 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:20:11,020 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:20:11,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:20:11,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:11" (1/1) ... [2024-11-08 16:20:11,045 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:11" (1/1) ... [2024-11-08 16:20:11,070 INFO L138 Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2024-11-08 16:20:11,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:20:11,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:20:11,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:20:11,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:20:11,086 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:11" (1/1) ... [2024-11-08 16:20:11,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:11" (1/1) ... [2024-11-08 16:20:11,095 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:11" (1/1) ... [2024-11-08 16:20:11,128 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]. [2024-11-08 16:20:11,147 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:11" (1/1) ... [2024-11-08 16:20:11,148 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:11" (1/1) ... [2024-11-08 16:20:11,164 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:11" (1/1) ... [2024-11-08 16:20:11,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:11" (1/1) ... [2024-11-08 16:20:11,168 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:11" (1/1) ... [2024-11-08 16:20:11,170 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:11" (1/1) ... [2024-11-08 16:20:11,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:20:11,178 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:20:11,178 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:20:11,178 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:20:11,179 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:11" (1/1) ... [2024-11-08 16:20:11,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:20:11,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:20:11,223 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:20:11,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:20:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:20:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 16:20:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 16:20:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:20:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-08 16:20:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-08 16:20:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 16:20:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 16:20:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:20:11,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:20:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-08 16:20:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-08 16:20:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:20:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 16:20:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 16:20:11,418 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:20:11,421 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:20:16,384 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-08 16:20:16,385 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:20:16,399 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:20:16,399 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:20:16,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:20:16 BoogieIcfgContainer [2024-11-08 16:20:16,400 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:20:16,407 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:20:16,407 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:20:16,415 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:20:16,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:20:10" (1/3) ... [2024-11-08 16:20:16,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714fb4a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:20:16, skipping insertion in model container [2024-11-08 16:20:16,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:20:11" (2/3) ... [2024-11-08 16:20:16,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714fb4a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:20:16, skipping insertion in model container [2024-11-08 16:20:16,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:20:16" (3/3) ... [2024-11-08 16:20:16,419 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c.v+cfa-reducer.c [2024-11-08 16:20:16,448 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:20:16,448 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:20:16,536 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:20:16,547 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;@165d0e9c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:20:16,548 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:20:16,556 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) [2024-11-08 16:20:16,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 16:20:16,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:20:16,569 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:20:16,569 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:20:16,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:20:16,578 INFO L85 PathProgramCache]: Analyzing trace with hash -2137295023, now seen corresponding path program 1 times [2024-11-08 16:20:16,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:20:16,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919106900] [2024-11-08 16:20:16,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:20:16,598 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 [2024-11-08 16:20:16,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 16:20:16,602 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 16:20:16,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:20:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:20:19,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 16:20:19,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:20:29,943 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) [2024-11-08 16:20:38,301 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) [2024-11-08 16:20:46,522 WARN L286 SmtUtils]: Spent 8.22s 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) [2024-11-08 16:20:50,632 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 [2024-11-08 16:21:03,001 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) [2024-11-08 16:21:11,450 WARN L286 SmtUtils]: Spent 8.45s 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) [2024-11-08 16:21:19,860 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) [2024-11-08 16:21:23,956 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 [2024-11-08 16:21:28,029 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 [2024-11-08 16:21:40,361 WARN L286 SmtUtils]: Spent 8.23s 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) [2024-11-08 16:21:48,782 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) [2024-11-08 16:21:57,150 WARN L286 SmtUtils]: Spent 8.37s 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) [2024-11-08 16:22:09,480 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) [2024-11-08 16:22:17,880 WARN L286 SmtUtils]: Spent 8.40s 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) [2024-11-08 16:22:26,263 WARN L286 SmtUtils]: Spent 8.38s 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) [2024-11-08 16:22:38,580 WARN L286 SmtUtils]: Spent 8.20s 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) [2024-11-08 16:22:46,992 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) [2024-11-08 16:22:55,415 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) [2024-11-08 16:22:55,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:22:55,418 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:22:55,419 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:22:55,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919106900] [2024-11-08 16:22:55,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919106900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:22:55,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:22:55,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:22:55,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338305936] [2024-11-08 16:22:55,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:22:55,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:22:55,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:22:55,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:22:55,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=11, Unknown=3, NotChecked=14, Total=42 [2024-11-08 16:22:55,469 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) [2024-11-08 16:23:01,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 16:23:05,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 16:23:09,213 WARN L539 Checker$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 [] [2024-11-08 16:23:10,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:23:10,045 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2024-11-08 16:23:10,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:23:10,055 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 [2024-11-08 16:23:10,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:23:10,066 INFO L225 Difference]: With dead ends: 27 [2024-11-08 16:23:10,068 INFO L226 Difference]: Without dead ends: 12 [2024-11-08 16:23:10,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=14, Invalid=11, Unknown=3, NotChecked=14, Total=42 [2024-11-08 16:23:10,081 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s 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, 14.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:23:10,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 27 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 3 Unknown, 65 Unchecked, 14.5s Time] [2024-11-08 16:23:10,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-08 16:23:10,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-08 16:23:10,125 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) [2024-11-08 16:23:10,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-08 16:23:10,128 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2024-11-08 16:23:10,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:23:10,128 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-08 16:23:10,129 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) [2024-11-08 16:23:10,129 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-08 16:23:10,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 16:23:10,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:23:10,131 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:23:10,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-08 16:23:10,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:23:10,332 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:23:10,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:23:10,333 INFO L85 PathProgramCache]: Analyzing trace with hash 2140661612, now seen corresponding path program 1 times [2024-11-08 16:23:10,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:23:10,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887276159] [2024-11-08 16:23:10,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:23:10,335 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 [2024-11-08 16:23:10,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 16:23:10,339 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 16:23:10,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:23:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:23:10,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 16:23:10,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:23:11,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:23:11,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:23:11,155 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:23:11,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887276159] [2024-11-08 16:23:11,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1887276159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:23:11,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:23:11,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:23:11,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013482772] [2024-11-08 16:23:11,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:23:11,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:23:11,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:23:11,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:23:11,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:23:11,161 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) [2024-11-08 16:23:15,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 16:23:15,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:23:15,569 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2024-11-08 16:23:15,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:23:15,570 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 [2024-11-08 16:23:15,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:23:15,571 INFO L225 Difference]: With dead ends: 16 [2024-11-08 16:23:15,571 INFO L226 Difference]: Without dead ends: 12 [2024-11-08 16:23:15,571 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 [2024-11-08 16:23:15,573 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s 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, 4.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:23:15,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2024-11-08 16:23:15,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-08 16:23:15,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-08 16:23:15,578 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) [2024-11-08 16:23:15,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2024-11-08 16:23:15,579 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2024-11-08 16:23:15,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:23:15,579 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2024-11-08 16:23:15,580 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) [2024-11-08 16:23:15,580 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2024-11-08 16:23:15,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 16:23:15,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:23:15,581 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:23:15,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:23:15,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:23:15,782 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:23:15,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:23:15,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1946484073, now seen corresponding path program 1 times [2024-11-08 16:23:15,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:23:15,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412911616] [2024-11-08 16:23:15,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:23:15,785 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 [2024-11-08 16:23:15,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 16:23:15,787 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 16:23:15,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:23:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:23:18,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 16:23:18,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:23:29,548 WARN L286 SmtUtils]: Spent 8.23s 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) [2024-11-08 16:23:37,926 WARN L286 SmtUtils]: Spent 8.38s 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) [2024-11-08 16:23:46,392 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) [2024-11-08 16:23:50,538 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 [2024-11-08 16:23:58,869 WARN L286 SmtUtils]: Spent 8.30s 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) [2024-11-08 16:24:07,302 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) [2024-11-08 16:24:15,808 WARN L286 SmtUtils]: Spent 8.51s 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) [2024-11-08 16:24:20,338 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 [2024-11-08 16:24:33,069 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) [2024-11-08 16:24:41,542 WARN L286 SmtUtils]: Spent 8.47s 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) [2024-11-08 16:24:49,999 WARN L286 SmtUtils]: Spent 8.46s 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) [2024-11-08 16:24:58,421 WARN L286 SmtUtils]: Spent 8.42s 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) [2024-11-08 16:25:02,526 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 [2024-11-08 16:25:06,598 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 [2024-11-08 16:25:19,083 WARN L286 SmtUtils]: Spent 8.37s 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) [2024-11-08 16:25:27,503 WARN L286 SmtUtils]: Spent 8.42s 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) [2024-11-08 16:25:35,929 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) [2024-11-08 16:25:44,314 WARN L286 SmtUtils]: Spent 8.38s 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) [2024-11-08 16:25:56,795 WARN L286 SmtUtils]: Spent 8.38s 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) [2024-11-08 16:26:05,224 WARN L286 SmtUtils]: Spent 8.43s 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) [2024-11-08 16:26:13,643 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) [2024-11-08 16:26:22,028 WARN L286 SmtUtils]: Spent 8.38s 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) [2024-11-08 16:26:34,526 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) [2024-11-08 16:26:43,016 WARN L286 SmtUtils]: Spent 8.49s 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) [2024-11-08 16:26:51,422 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) [2024-11-08 16:26:59,812 WARN L286 SmtUtils]: Spent 8.39s 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) [2024-11-08 16:26:59,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:26:59,813 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:26:59,813 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:26:59,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412911616] [2024-11-08 16:26:59,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412911616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:26:59,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:26:59,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:26:59,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414999912] [2024-11-08 16:26:59,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:26:59,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:26:59,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:26:59,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:26:59,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=12, Unknown=4, NotChecked=24, Total=56 [2024-11-08 16:26:59,817 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) [2024-11-08 16:27:04,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 16:27:08,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 16:27:12,573 WARN L539 Checker$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 [] [2024-11-08 16:27:12,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:27:12,575 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2024-11-08 16:27:12,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:27:12,704 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 [2024-11-08 16:27:12,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:27:12,705 INFO L225 Difference]: With dead ends: 12 [2024-11-08 16:27:12,705 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 16:27:12,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=16, Invalid=12, Unknown=4, NotChecked=24, Total=56 [2024-11-08 16:27:12,707 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s 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, 12.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:27:12,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 3 Unknown, 44 Unchecked, 12.8s Time] [2024-11-08 16:27:12,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 16:27:12,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 16:27:12,709 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) [2024-11-08 16:27:12,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 16:27:12,709 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2024-11-08 16:27:12,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:27:12,710 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 16:27:12,710 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) [2024-11-08 16:27:12,710 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 16:27:12,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 16:27:12,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 16:27:12,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:27:12,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 16:27:12,917 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-08 16:27:12,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 16:27:12,925 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:27:12,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:27:12 BoogieIcfgContainer [2024-11-08 16:27:12,932 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:27:12,932 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:27:12,933 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:27:12,933 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:27:12,933 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:20:16" (3/4) ... [2024-11-08 16:27:12,937 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 16:27:12,947 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-08 16:27:12,947 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 16:27:12,947 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 16:27:12,948 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 16:27:13,072 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 16:27:13,073 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 16:27:13,073 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:27:13,074 INFO L158 Benchmark]: Toolchain (without parser) took 422547.20ms. Allocated memory was 77.6MB in the beginning and 102.8MB in the end (delta: 25.2MB). Free memory was 53.2MB in the beginning and 77.7MB in the end (delta: -24.5MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2024-11-08 16:27:13,074 INFO L158 Benchmark]: CDTParser took 1.66ms. Allocated memory is still 77.6MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:27:13,075 INFO L158 Benchmark]: CACSL2BoogieTranslator took 489.24ms. Allocated memory is still 77.6MB. Free memory was 52.9MB in the beginning and 39.1MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 16:27:13,075 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.46ms. Allocated memory is still 77.6MB. Free memory was 39.1MB in the beginning and 37.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:27:13,075 INFO L158 Benchmark]: Boogie Preprocessor took 101.94ms. Allocated memory is still 77.6MB. Free memory was 37.3MB in the beginning and 56.6MB in the end (delta: -19.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 16:27:13,076 INFO L158 Benchmark]: RCFGBuilder took 5222.46ms. Allocated memory is still 77.6MB. Free memory was 56.6MB in the beginning and 44.6MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 16:27:13,076 INFO L158 Benchmark]: TraceAbstraction took 416525.26ms. Allocated memory was 77.6MB in the beginning and 102.8MB in the end (delta: 25.2MB). Free memory was 44.0MB in the beginning and 47.0MB in the end (delta: -3.0MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2024-11-08 16:27:13,077 INFO L158 Benchmark]: Witness Printer took 140.69ms. Allocated memory is still 102.8MB. Free memory was 46.4MB in the beginning and 77.7MB in the end (delta: -31.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:27:13,080 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.66ms. Allocated memory is still 77.6MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 489.24ms. Allocated memory is still 77.6MB. Free memory was 52.9MB in the beginning and 39.1MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.46ms. Allocated memory is still 77.6MB. Free memory was 39.1MB in the beginning and 37.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 101.94ms. Allocated memory is still 77.6MB. Free memory was 37.3MB in the beginning and 56.6MB in the end (delta: -19.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 5222.46ms. Allocated memory is still 77.6MB. Free memory was 56.6MB in the beginning and 44.6MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 416525.26ms. Allocated memory was 77.6MB in the beginning and 102.8MB in the end (delta: 25.2MB). Free memory was 44.0MB in the beginning and 47.0MB in the end (delta: -3.0MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * Witness Printer took 140.69ms. Allocated memory is still 102.8MB. Free memory was 46.4MB in the beginning and 77.7MB in the end (delta: -31.2MB). Peak memory consumption was 2.1MB. 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: 416.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 32.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 31.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 31.4s 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, 31.9s 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: 0.1s SsaConstructionTime, 5.6s SatisfiabilityAnalysisTime, 377.8s 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! [2024-11-08 16:27:13,301 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-11-08 16:27:13,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b76e1a2-75bd-40ad-8df6-a12f5b51c373/bin/uautomizer-verify-jihMAELWvX/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