./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_8+soft_float_4-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_8+soft_float_4-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya --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 3a1b0d13ed57f2c287b7c5c279f90464e92ac535bf47194a470e4f6c38d6c07a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:08:31,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:08:31,716 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 06:08:31,721 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:08:31,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:08:31,747 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:08:31,748 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:08:31,749 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:08:31,750 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:08:31,750 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:08:31,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:08:31,751 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:08:31,752 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:08:31,753 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:08:31,753 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:08:31,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:08:31,754 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:08:31,755 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:08:31,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:08:31,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:08:31,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:08:31,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:08:31,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:08:31,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:08:31,760 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:08:31,761 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:08:31,761 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:08:31,762 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:08:31,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:08:31,763 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:08:31,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:08:31,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:08:31,764 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:08:31,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:08:31,764 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:08:31,764 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:08:31,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:08:31,765 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:08:31,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:08:31,765 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:08:31,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:08:31,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:08:31,766 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_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a1b0d13ed57f2c287b7c5c279f90464e92ac535bf47194a470e4f6c38d6c07a [2023-11-29 06:08:32,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:08:32,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:08:32,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:08:32,054 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:08:32,055 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:08:32,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/combinations/square_8+soft_float_4-3a.c.cil.c [2023-11-29 06:08:35,123 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:08:35,323 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:08:35,324 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/sv-benchmarks/c/combinations/square_8+soft_float_4-3a.c.cil.c [2023-11-29 06:08:35,332 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/data/49af6fecd/2d06671e9ac24b31accff6db71a72f46/FLAG954e5d6ae [2023-11-29 06:08:35,346 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/data/49af6fecd/2d06671e9ac24b31accff6db71a72f46 [2023-11-29 06:08:35,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:08:35,349 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:08:35,350 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:08:35,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:08:35,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:08:35,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:08:35" (1/1) ... [2023-11-29 06:08:35,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7153be2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:35, skipping insertion in model container [2023-11-29 06:08:35,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:08:35" (1/1) ... [2023-11-29 06:08:35,389 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:08:35,537 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/sv-benchmarks/c/combinations/square_8+soft_float_4-3a.c.cil.c[1995,2008] [2023-11-29 06:08:35,543 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/sv-benchmarks/c/combinations/square_8+soft_float_4-3a.c.cil.c[2364,2377] [2023-11-29 06:08:35,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:08:35,600 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:08:35,614 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/sv-benchmarks/c/combinations/square_8+soft_float_4-3a.c.cil.c[1995,2008] [2023-11-29 06:08:35,616 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/sv-benchmarks/c/combinations/square_8+soft_float_4-3a.c.cil.c[2364,2377] [2023-11-29 06:08:35,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:08:35,664 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:08:35,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:35 WrapperNode [2023-11-29 06:08:35,665 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:08:35,666 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:08:35,666 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:08:35,666 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:08:35,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:35" (1/1) ... [2023-11-29 06:08:35,682 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:35" (1/1) ... [2023-11-29 06:08:35,702 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 79 [2023-11-29 06:08:35,703 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:08:35,703 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:08:35,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:08:35,703 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:08:35,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:35" (1/1) ... [2023-11-29 06:08:35,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:35" (1/1) ... [2023-11-29 06:08:35,715 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:35" (1/1) ... [2023-11-29 06:08:35,730 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 06:08:35,731 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:35" (1/1) ... [2023-11-29 06:08:35,731 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:35" (1/1) ... [2023-11-29 06:08:35,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:35" (1/1) ... [2023-11-29 06:08:35,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:35" (1/1) ... [2023-11-29 06:08:35,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:35" (1/1) ... [2023-11-29 06:08:35,754 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:35" (1/1) ... [2023-11-29 06:08:35,759 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:08:35,760 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:08:35,760 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:08:35,760 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:08:35,761 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:35" (1/1) ... [2023-11-29 06:08:35,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:08:35,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:35,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:35,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:08:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:08:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-11-29 06:08:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-11-29 06:08:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2023-11-29 06:08:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2023-11-29 06:08:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:08:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:08:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:08:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 06:08:35,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 06:08:35,923 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:08:35,925 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:08:36,309 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:08:36,339 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:08:36,339 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 06:08:36,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:08:36 BoogieIcfgContainer [2023-11-29 06:08:36,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:08:36,343 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:08:36,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:08:36,346 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:08:36,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:08:35" (1/3) ... [2023-11-29 06:08:36,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5299ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:08:36, skipping insertion in model container [2023-11-29 06:08:36,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:35" (2/3) ... [2023-11-29 06:08:36,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5299ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:08:36, skipping insertion in model container [2023-11-29 06:08:36,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:08:36" (3/3) ... [2023-11-29 06:08:36,349 INFO L112 eAbstractionObserver]: Analyzing ICFG square_8+soft_float_4-3a.c.cil.c [2023-11-29 06:08:36,367 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:08:36,367 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 06:08:36,419 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:08:36,426 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@22f18f24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:08:36,427 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 06:08:36,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 59 states have (on average 1.6101694915254237) internal successors, (95), 61 states have internal predecessors, (95), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 06:08:36,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 06:08:36,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:08:36,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 06:08:36,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:08:36,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:36,443 INFO L85 PathProgramCache]: Analyzing trace with hash -85966440, now seen corresponding path program 1 times [2023-11-29 06:08:36,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:08:36,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708414961] [2023-11-29 06:08:36,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:08:36,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:08:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:08:36,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:08:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:08:36,582 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:08:36,584 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 06:08:36,585 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-29 06:08:36,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-11-29 06:08:36,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:08:36,594 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 06:08:36,597 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:08:36,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:08:36 BoogieIcfgContainer [2023-11-29 06:08:36,612 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:08:36,613 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:08:36,613 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:08:36,613 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:08:36,613 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:08:36" (3/4) ... [2023-11-29 06:08:36,616 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 06:08:36,617 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:08:36,619 INFO L158 Benchmark]: Toolchain (without parser) took 1268.95ms. Allocated memory is still 161.5MB. Free memory was 119.8MB in the beginning and 65.9MB in the end (delta: 53.9MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2023-11-29 06:08:36,619 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 100.7MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:08:36,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.85ms. Allocated memory is still 161.5MB. Free memory was 119.8MB in the beginning and 105.8MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 06:08:36,621 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.80ms. Allocated memory is still 161.5MB. Free memory was 105.8MB in the beginning and 103.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:08:36,621 INFO L158 Benchmark]: Boogie Preprocessor took 55.71ms. Allocated memory is still 161.5MB. Free memory was 103.7MB in the beginning and 101.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:08:36,622 INFO L158 Benchmark]: RCFGBuilder took 580.09ms. Allocated memory is still 161.5MB. Free memory was 101.0MB in the beginning and 80.6MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 06:08:36,623 INFO L158 Benchmark]: TraceAbstraction took 269.44ms. Allocated memory is still 161.5MB. Free memory was 80.0MB in the beginning and 66.5MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 06:08:36,624 INFO L158 Benchmark]: Witness Printer took 4.87ms. Allocated memory is still 161.5MB. Free memory was 66.5MB in the beginning and 65.9MB in the end (delta: 612.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:08:36,627 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 100.7MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.85ms. Allocated memory is still 161.5MB. Free memory was 119.8MB in the beginning and 105.8MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.80ms. Allocated memory is still 161.5MB. Free memory was 105.8MB in the beginning and 103.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.71ms. Allocated memory is still 161.5MB. Free memory was 103.7MB in the beginning and 101.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 580.09ms. Allocated memory is still 161.5MB. Free memory was 101.0MB in the beginning and 80.6MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 269.44ms. Allocated memory is still 161.5MB. Free memory was 80.0MB in the beginning and 66.5MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 4.87ms. Allocated memory is still 161.5MB. Free memory was 66.5MB in the beginning and 65.9MB in the end (delta: 612.9kB). 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: 48]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L309] COND TRUE __VERIFIER_nondet_int() [L310] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=53, x=53] [L47] COND TRUE !(result >= 0.0f && result < 1.5f) VAL [IN=53, x=53] [L48] reach_error() VAL [IN=53, x=53] - UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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=74occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 06:08:36,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/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_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_8+soft_float_4-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya --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 3a1b0d13ed57f2c287b7c5c279f90464e92ac535bf47194a470e4f6c38d6c07a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:08:38,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:08:38,926 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 06:08:38,940 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:08:38,941 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:08:38,972 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:08:38,973 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:08:38,973 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:08:38,974 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:08:38,975 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:08:38,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:08:38,976 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:08:38,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:08:38,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:08:38,978 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:08:38,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:08:38,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:08:38,980 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:08:38,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:08:38,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:08:38,981 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:08:38,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:08:38,982 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:08:38,983 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 06:08:38,983 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 06:08:38,983 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 06:08:38,984 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:08:38,984 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:08:38,985 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:08:38,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:08:38,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:08:38,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:08:38,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:08:38,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:08:38,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:08:38,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:08:38,988 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:08:38,988 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 06:08:38,988 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 06:08:38,988 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:08:38,989 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:08:38,989 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:08:38,989 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:08:38,990 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:08:38,990 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 06:08:38,990 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_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a1b0d13ed57f2c287b7c5c279f90464e92ac535bf47194a470e4f6c38d6c07a [2023-11-29 06:08:39,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:08:39,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:08:39,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:08:39,368 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:08:39,369 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:08:39,370 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/combinations/square_8+soft_float_4-3a.c.cil.c [2023-11-29 06:08:42,490 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:08:42,709 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:08:42,710 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/sv-benchmarks/c/combinations/square_8+soft_float_4-3a.c.cil.c [2023-11-29 06:08:42,722 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/data/b60ac4299/4ef3ab1a5f18489d9b0e8f5d809bab33/FLAG5295e9ebf [2023-11-29 06:08:42,741 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/data/b60ac4299/4ef3ab1a5f18489d9b0e8f5d809bab33 [2023-11-29 06:08:42,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:08:42,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:08:42,747 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:08:42,748 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:08:42,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:08:42,754 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:08:42" (1/1) ... [2023-11-29 06:08:42,756 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c5b5e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:42, skipping insertion in model container [2023-11-29 06:08:42,756 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:08:42" (1/1) ... [2023-11-29 06:08:42,796 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:08:42,985 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/sv-benchmarks/c/combinations/square_8+soft_float_4-3a.c.cil.c[1995,2008] [2023-11-29 06:08:42,992 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/sv-benchmarks/c/combinations/square_8+soft_float_4-3a.c.cil.c[2364,2377] [2023-11-29 06:08:43,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:08:43,052 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:08:43,069 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/sv-benchmarks/c/combinations/square_8+soft_float_4-3a.c.cil.c[1995,2008] [2023-11-29 06:08:43,071 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/sv-benchmarks/c/combinations/square_8+soft_float_4-3a.c.cil.c[2364,2377] [2023-11-29 06:08:43,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:08:43,117 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:08:43,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:43 WrapperNode [2023-11-29 06:08:43,119 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:08:43,120 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:08:43,120 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:08:43,120 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:08:43,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:43" (1/1) ... [2023-11-29 06:08:43,143 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:43" (1/1) ... [2023-11-29 06:08:43,167 INFO L138 Inliner]: procedures = 28, calls = 20, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2023-11-29 06:08:43,168 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:08:43,169 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:08:43,169 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:08:43,169 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:08:43,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:43" (1/1) ... [2023-11-29 06:08:43,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:43" (1/1) ... [2023-11-29 06:08:43,187 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:43" (1/1) ... [2023-11-29 06:08:43,214 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 06:08:43,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:43" (1/1) ... [2023-11-29 06:08:43,215 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:43" (1/1) ... [2023-11-29 06:08:43,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:43" (1/1) ... [2023-11-29 06:08:43,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:43" (1/1) ... [2023-11-29 06:08:43,235 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:43" (1/1) ... [2023-11-29 06:08:43,237 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:43" (1/1) ... [2023-11-29 06:08:43,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:08:43,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:08:43,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:08:43,243 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:08:43,243 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:43" (1/1) ... [2023-11-29 06:08:43,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:08:43,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:08:43,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:08:43,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:08:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:08:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 06:08:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-11-29 06:08:43,310 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-11-29 06:08:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2023-11-29 06:08:43,310 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2023-11-29 06:08:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:08:43,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:08:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 06:08:43,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 06:08:43,404 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:08:43,407 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:08:47,525 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:08:47,558 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:08:47,558 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 06:08:47,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:08:47 BoogieIcfgContainer [2023-11-29 06:08:47,559 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:08:47,563 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:08:47,563 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:08:47,566 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:08:47,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:08:42" (1/3) ... [2023-11-29 06:08:47,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b182458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:08:47, skipping insertion in model container [2023-11-29 06:08:47,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:08:43" (2/3) ... [2023-11-29 06:08:47,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b182458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:08:47, skipping insertion in model container [2023-11-29 06:08:47,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:08:47" (3/3) ... [2023-11-29 06:08:47,570 INFO L112 eAbstractionObserver]: Analyzing ICFG square_8+soft_float_4-3a.c.cil.c [2023-11-29 06:08:47,587 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:08:47,587 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 06:08:47,636 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:08:47,642 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@49445d4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:08:47,643 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 06:08:47,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 42 states have (on average 1.5476190476190477) internal successors, (65), 44 states have internal predecessors, (65), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 06:08:47,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 06:08:47,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:08:47,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 06:08:47,656 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:08:47,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:47,661 INFO L85 PathProgramCache]: Analyzing trace with hash 2011176783, now seen corresponding path program 1 times [2023-11-29 06:08:47,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:08:47,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478368005] [2023-11-29 06:08:47,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:08:47,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:08:47,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:08:47,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:08:47,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 06:08:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:48,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 06:08:48,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:48,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:08:48,273 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:08:48,274 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:08:48,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478368005] [2023-11-29 06:08:48,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478368005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:08:48,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:08:48,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:08:48,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790989442] [2023-11-29 06:08:48,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:08:48,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:08:48,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:08:48,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:08:48,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:08:48,309 INFO L87 Difference]: Start difference. First operand has 57 states, 42 states have (on average 1.5476190476190477) internal successors, (65), 44 states have internal predecessors, (65), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-29 06:08:48,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:08:48,369 INFO L93 Difference]: Finished difference Result 110 states and 168 transitions. [2023-11-29 06:08:48,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:08:48,372 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-29 06:08:48,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:08:48,380 INFO L225 Difference]: With dead ends: 110 [2023-11-29 06:08:48,380 INFO L226 Difference]: Without dead ends: 53 [2023-11-29 06:08:48,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:08:48,388 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:08:48,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:08:48,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-29 06:08:48,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-29 06:08:48,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 41 states have internal predecessors, (54), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 06:08:48,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 71 transitions. [2023-11-29 06:08:48,447 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 71 transitions. Word has length 6 [2023-11-29 06:08:48,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:08:48,448 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 71 transitions. [2023-11-29 06:08:48,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-29 06:08:48,448 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 71 transitions. [2023-11-29 06:08:48,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 06:08:48,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:08:48,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 06:08:48,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:08:48,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:08:48,651 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:08:48,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:48,652 INFO L85 PathProgramCache]: Analyzing trace with hash 2011236365, now seen corresponding path program 1 times [2023-11-29 06:08:48,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:08:48,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114587922] [2023-11-29 06:08:48,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:08:48,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:08:48,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:08:48,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:08:48,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 06:09:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:09:14,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:09:14,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:09:22,967 WARN L293 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 06:09:31,237 WARN L293 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 06:09:39,396 WARN L293 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 06:09:43,485 WARN L854 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0) (= (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) |c_ULTIMATE.start_main1_~result~0#1|) (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2023-11-29 06:09:47,534 WARN L876 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0) (= (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) |c_ULTIMATE.start_main1_~result~0#1|) (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2023-11-29 06:10:03,837 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 06:10:12,126 WARN L293 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 06:10:20,421 WARN L293 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 06:10:32,830 WARN L293 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 06:10:40,991 WARN L293 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 06:10:49,320 WARN L293 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 06:10:53,454 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0))) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0))) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)))) (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0))) (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (_ +zero 8 24))) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0))))) is different from false [2023-11-29 06:10:57,502 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0))) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0))) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)))) (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0))) (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (_ +zero 8 24))) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0))))) is different from true [2023-11-29 06:10:57,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:10:57,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:10:57,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:10:57,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114587922] [2023-11-29 06:10:57,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [114587922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:10:57,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:10:57,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:10:57,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54679811] [2023-11-29 06:10:57,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:10:57,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:10:57,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:10:57,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:10:57,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=11, Unknown=4, NotChecked=14, Total=42 [2023-11-29 06:10:57,507 INFO L87 Difference]: Start difference. First operand 53 states and 71 transitions. Second operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 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) [2023-11-29 06:11:01,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 06:11:05,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 06:11:10,063 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0) (= (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) |c_ULTIMATE.start_main1_~result~0#1|) (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)))) (fp.lt |c_ULTIMATE.start_main1_~IN~0#1| .cse0) (fp.geq |c_ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2023-11-29 06:11:10,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:11:10,390 INFO L93 Difference]: Finished difference Result 53 states and 71 transitions. [2023-11-29 06:11:10,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:11:10,391 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 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 6 [2023-11-29 06:11:10,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:11:10,393 INFO L225 Difference]: With dead ends: 53 [2023-11-29 06:11:10,393 INFO L226 Difference]: Without dead ends: 48 [2023-11-29 06:11:10,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=20, Invalid=17, Unknown=5, NotChecked=30, Total=72 [2023-11-29 06:11:10,395 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 67 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 142 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:11:10,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 155 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 2 Unknown, 142 Unchecked, 8.6s Time] [2023-11-29 06:11:10,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-29 06:11:10,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-29 06:11:10,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 35 states have (on average 1.4) internal successors, (49), 36 states have internal predecessors, (49), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 06:11:10,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 66 transitions. [2023-11-29 06:11:10,408 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 66 transitions. Word has length 6 [2023-11-29 06:11:10,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:11:10,408 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 66 transitions. [2023-11-29 06:11:10,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 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) [2023-11-29 06:11:10,409 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 66 transitions. [2023-11-29 06:11:10,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 06:11:10,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:10,410 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:10,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 06:11:10,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:10,611 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:10,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:10,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1646139112, now seen corresponding path program 1 times [2023-11-29 06:11:10,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:11:10,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109095507] [2023-11-29 06:11:10,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:10,613 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:10,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:11:10,614 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:11:10,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 06:11:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:10,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:11:10,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:11:11,076 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 06:11:11,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:11:11,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:11:11,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109095507] [2023-11-29 06:11:11,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109095507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:11:11,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:11:11,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:11:11,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306728123] [2023-11-29 06:11:11,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:11:11,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:11:11,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:11:11,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:11:11,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:11:11,080 INFO L87 Difference]: Start difference. First operand 48 states and 66 transitions. Second operand has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 06:11:11,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:11:11,617 INFO L93 Difference]: Finished difference Result 93 states and 130 transitions. [2023-11-29 06:11:11,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:11:11,618 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-11-29 06:11:11,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:11:11,621 INFO L225 Difference]: With dead ends: 93 [2023-11-29 06:11:11,621 INFO L226 Difference]: Without dead ends: 66 [2023-11-29 06:11:11,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:11:11,624 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 16 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:11:11,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 398 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:11:11,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-29 06:11:11,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 57. [2023-11-29 06:11:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 43 states have internal predecessors, (55), 10 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-29 06:11:11,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 77 transitions. [2023-11-29 06:11:11,639 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 77 transitions. Word has length 28 [2023-11-29 06:11:11,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:11:11,640 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 77 transitions. [2023-11-29 06:11:11,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 06:11:11,640 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 77 transitions. [2023-11-29 06:11:11,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 06:11:11,642 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:11,642 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:11,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 06:11:11,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:11,847 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:11,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:11,849 INFO L85 PathProgramCache]: Analyzing trace with hash 478532291, now seen corresponding path program 1 times [2023-11-29 06:11:11,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:11:11,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858746557] [2023-11-29 06:11:11,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:11,851 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:11,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:11:11,855 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:11:11,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 06:11:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:11,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:11:11,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:11:12,472 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 06:11:12,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:11:12,690 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 06:11:12,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:11:12,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858746557] [2023-11-29 06:11:12,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858746557] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:11:12,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:11:12,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2023-11-29 06:11:12,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111654726] [2023-11-29 06:11:12,692 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:11:12,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:11:12,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:11:12,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:11:12,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:11:12,694 INFO L87 Difference]: Start difference. First operand 57 states and 77 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:11:13,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:11:13,420 INFO L93 Difference]: Finished difference Result 112 states and 152 transitions. [2023-11-29 06:11:13,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:11:13,421 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2023-11-29 06:11:13,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:11:13,422 INFO L225 Difference]: With dead ends: 112 [2023-11-29 06:11:13,422 INFO L226 Difference]: Without dead ends: 85 [2023-11-29 06:11:13,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:11:13,424 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 21 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:11:13,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 453 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:11:13,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-29 06:11:13,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 66. [2023-11-29 06:11:13,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 49 states have internal predecessors, (62), 12 states have call successors, (12), 5 states have call predecessors, (12), 6 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) [2023-11-29 06:11:13,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 89 transitions. [2023-11-29 06:11:13,443 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 89 transitions. Word has length 32 [2023-11-29 06:11:13,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:11:13,443 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 89 transitions. [2023-11-29 06:11:13,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:11:13,444 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 89 transitions. [2023-11-29 06:11:13,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 06:11:13,445 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:13,446 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:13,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 06:11:13,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:13,646 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:13,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:13,647 INFO L85 PathProgramCache]: Analyzing trace with hash -490985982, now seen corresponding path program 1 times [2023-11-29 06:11:13,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:11:13,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357502719] [2023-11-29 06:11:13,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:13,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:13,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:11:13,648 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:11:13,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 06:11:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:13,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:11:13,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:11:14,106 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 06:11:14,106 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:11:14,348 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 06:11:14,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:11:14,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357502719] [2023-11-29 06:11:14,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [357502719] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:11:14,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:11:14,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2023-11-29 06:11:14,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836066322] [2023-11-29 06:11:14,349 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:11:14,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:11:14,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:11:14,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:11:14,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:11:14,350 INFO L87 Difference]: Start difference. First operand 66 states and 89 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:11:14,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:11:14,872 INFO L93 Difference]: Finished difference Result 105 states and 142 transitions. [2023-11-29 06:11:14,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:11:14,872 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2023-11-29 06:11:14,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:11:14,874 INFO L225 Difference]: With dead ends: 105 [2023-11-29 06:11:14,874 INFO L226 Difference]: Without dead ends: 82 [2023-11-29 06:11:14,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:11:14,875 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 13 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:11:14,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 413 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:11:14,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-11-29 06:11:14,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 75. [2023-11-29 06:11:14,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 53 states have (on average 1.2830188679245282) internal successors, (68), 55 states have internal predecessors, (68), 14 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2023-11-29 06:11:14,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 99 transitions. [2023-11-29 06:11:14,886 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 99 transitions. Word has length 35 [2023-11-29 06:11:14,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:11:14,886 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 99 transitions. [2023-11-29 06:11:14,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:11:14,886 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 99 transitions. [2023-11-29 06:11:14,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 06:11:14,888 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:14,888 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:14,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 06:11:15,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:15,088 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:15,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:15,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1559779026, now seen corresponding path program 2 times [2023-11-29 06:11:15,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:11:15,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294074139] [2023-11-29 06:11:15,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:11:15,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:15,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:11:15,091 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:11:15,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/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 (7)] Waiting until timeout for monitored process [2023-11-29 06:11:15,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 06:11:15,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:11:15,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:11:15,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:11:15,528 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:11:15,528 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:11:15,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:11:15,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294074139] [2023-11-29 06:11:15,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294074139] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:11:15,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:11:15,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:11:15,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367050787] [2023-11-29 06:11:15,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:11:15,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:11:15,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:11:15,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:11:15,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:11:15,530 INFO L87 Difference]: Start difference. First operand 75 states and 99 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 06:11:20,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:11:20,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:11:20,233 INFO L93 Difference]: Finished difference Result 96 states and 127 transitions. [2023-11-29 06:11:20,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:11:20,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2023-11-29 06:11:20,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:11:20,236 INFO L225 Difference]: With dead ends: 96 [2023-11-29 06:11:20,236 INFO L226 Difference]: Without dead ends: 94 [2023-11-29 06:11:20,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:11:20,238 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 17 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:11:20,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 298 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2023-11-29 06:11:20,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-29 06:11:20,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 81. [2023-11-29 06:11:20,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 57 states have (on average 1.280701754385965) internal successors, (73), 60 states have internal predecessors, (73), 15 states have call successors, (15), 7 states have call predecessors, (15), 8 states have return successors, (18), 13 states have call predecessors, (18), 14 states have call successors, (18) [2023-11-29 06:11:20,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 106 transitions. [2023-11-29 06:11:20,249 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 106 transitions. Word has length 36 [2023-11-29 06:11:20,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:11:20,249 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 106 transitions. [2023-11-29 06:11:20,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 06:11:20,250 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 106 transitions. [2023-11-29 06:11:20,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 06:11:20,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:20,251 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:20,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/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 (7)] Ended with exit code 0 [2023-11-29 06:11:20,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:20,452 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:20,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:20,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1502520724, now seen corresponding path program 1 times [2023-11-29 06:11:20,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:11:20,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217311302] [2023-11-29 06:11:20,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:20,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:20,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:11:20,454 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:11:20,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/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 (8)] Waiting until timeout for monitored process [2023-11-29 06:11:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:20,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:11:20,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:11:20,858 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:11:20,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:11:20,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:11:20,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217311302] [2023-11-29 06:11:20,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217311302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:11:20,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:11:20,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:11:20,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845417199] [2023-11-29 06:11:20,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:11:20,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:11:20,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:11:20,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:11:20,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:11:20,861 INFO L87 Difference]: Start difference. First operand 81 states and 106 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 06:11:25,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:11:25,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:11:25,641 INFO L93 Difference]: Finished difference Result 91 states and 117 transitions. [2023-11-29 06:11:25,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:11:25,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2023-11-29 06:11:25,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:11:25,643 INFO L225 Difference]: With dead ends: 91 [2023-11-29 06:11:25,643 INFO L226 Difference]: Without dead ends: 89 [2023-11-29 06:11:25,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:11:25,644 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 26 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:11:25,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 271 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2023-11-29 06:11:25,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-29 06:11:25,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2023-11-29 06:11:25,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 58 states have internal predecessors, (71), 14 states have call successors, (14), 7 states have call predecessors, (14), 8 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2023-11-29 06:11:25,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 102 transitions. [2023-11-29 06:11:25,657 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 102 transitions. Word has length 36 [2023-11-29 06:11:25,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:11:25,658 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 102 transitions. [2023-11-29 06:11:25,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 06:11:25,658 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 102 transitions. [2023-11-29 06:11:25,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 06:11:25,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:25,660 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:25,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/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 (8)] Ended with exit code 0 [2023-11-29 06:11:25,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:25,860 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:25,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:25,861 INFO L85 PathProgramCache]: Analyzing trace with hash 704027381, now seen corresponding path program 1 times [2023-11-29 06:11:25,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:11:25,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787950365] [2023-11-29 06:11:25,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:25,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:25,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:11:25,862 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:11:25,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 06:11:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:25,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:11:25,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:11:26,679 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 06:11:26,679 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:11:26,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:11:26,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787950365] [2023-11-29 06:11:26,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787950365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:11:26,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:11:26,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 06:11:26,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051286531] [2023-11-29 06:11:26,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:11:26,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:11:26,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:11:26,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:11:26,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:11:26,681 INFO L87 Difference]: Start difference. First operand 79 states and 102 transitions. Second operand has 11 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:11:28,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:11:28,113 INFO L93 Difference]: Finished difference Result 117 states and 156 transitions. [2023-11-29 06:11:28,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:11:28,114 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2023-11-29 06:11:28,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:11:28,116 INFO L225 Difference]: With dead ends: 117 [2023-11-29 06:11:28,116 INFO L226 Difference]: Without dead ends: 110 [2023-11-29 06:11:28,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:11:28,117 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 30 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:11:28,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 614 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:11:28,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-29 06:11:28,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 93. [2023-11-29 06:11:28,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 67 states have internal predecessors, (82), 18 states have call successors, (18), 7 states have call predecessors, (18), 9 states have return successors, (24), 18 states have call predecessors, (24), 17 states have call successors, (24) [2023-11-29 06:11:28,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 124 transitions. [2023-11-29 06:11:28,137 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 124 transitions. Word has length 39 [2023-11-29 06:11:28,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:11:28,137 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 124 transitions. [2023-11-29 06:11:28,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:11:28,138 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 124 transitions. [2023-11-29 06:11:28,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 06:11:28,140 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:28,140 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:28,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-29 06:11:28,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:28,341 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:28,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:28,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1960839867, now seen corresponding path program 1 times [2023-11-29 06:11:28,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:11:28,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061860452] [2023-11-29 06:11:28,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:28,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:28,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:11:28,342 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:11:28,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 06:11:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:28,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:11:28,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:11:29,134 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 06:11:29,135 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:11:30,060 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 06:11:30,060 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:11:30,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2061860452] [2023-11-29 06:11:30,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2061860452] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:11:30,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:11:30,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 14 [2023-11-29 06:11:30,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375724742] [2023-11-29 06:11:30,061 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:11:30,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:11:30,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:11:30,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:11:30,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:11:30,063 INFO L87 Difference]: Start difference. First operand 93 states and 124 transitions. Second operand has 14 states, 11 states have (on average 2.727272727272727) internal successors, (30), 12 states have internal predecessors, (30), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:11:31,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:11:31,791 INFO L93 Difference]: Finished difference Result 124 states and 164 transitions. [2023-11-29 06:11:31,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:11:31,792 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 2.727272727272727) internal successors, (30), 12 states have internal predecessors, (30), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 41 [2023-11-29 06:11:31,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:11:31,793 INFO L225 Difference]: With dead ends: 124 [2023-11-29 06:11:31,793 INFO L226 Difference]: Without dead ends: 116 [2023-11-29 06:11:31,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:11:31,795 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 30 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:11:31,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 661 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:11:31,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-29 06:11:31,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 103. [2023-11-29 06:11:31,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 73 states have (on average 1.2465753424657535) internal successors, (91), 74 states have internal predecessors, (91), 19 states have call successors, (19), 7 states have call predecessors, (19), 10 states have return successors, (26), 21 states have call predecessors, (26), 18 states have call successors, (26) [2023-11-29 06:11:31,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 136 transitions. [2023-11-29 06:11:31,808 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 136 transitions. Word has length 41 [2023-11-29 06:11:31,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:11:31,808 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 136 transitions. [2023-11-29 06:11:31,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 2.727272727272727) internal successors, (30), 12 states have internal predecessors, (30), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:11:31,808 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 136 transitions. [2023-11-29 06:11:31,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 06:11:31,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:31,810 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:31,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-29 06:11:32,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:32,010 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:32,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:32,011 INFO L85 PathProgramCache]: Analyzing trace with hash 2018098169, now seen corresponding path program 1 times [2023-11-29 06:11:32,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:11:32,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953141830] [2023-11-29 06:11:32,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:32,011 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:32,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:11:32,012 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:11:32,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 06:11:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:32,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:11:32,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:11:32,251 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-29 06:11:32,251 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:11:32,251 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:11:32,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953141830] [2023-11-29 06:11:32,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953141830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:11:32,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:11:32,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:11:32,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795147374] [2023-11-29 06:11:32,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:11:32,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:11:32,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:11:32,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:11:32,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:11:32,253 INFO L87 Difference]: Start difference. First operand 103 states and 136 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:11:32,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:11:32,549 INFO L93 Difference]: Finished difference Result 111 states and 143 transitions. [2023-11-29 06:11:32,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:11:32,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 41 [2023-11-29 06:11:32,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:11:32,551 INFO L225 Difference]: With dead ends: 111 [2023-11-29 06:11:32,551 INFO L226 Difference]: Without dead ends: 96 [2023-11-29 06:11:32,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:11:32,552 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 6 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:11:32,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 291 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:11:32,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-29 06:11:32,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-11-29 06:11:32,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 68 states have (on average 1.2352941176470589) internal successors, (84), 70 states have internal predecessors, (84), 17 states have call successors, (17), 7 states have call predecessors, (17), 10 states have return successors, (23), 18 states have call predecessors, (23), 16 states have call successors, (23) [2023-11-29 06:11:32,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 124 transitions. [2023-11-29 06:11:32,566 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 124 transitions. Word has length 41 [2023-11-29 06:11:32,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:11:32,567 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 124 transitions. [2023-11-29 06:11:32,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:11:32,567 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 124 transitions. [2023-11-29 06:11:32,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 06:11:32,568 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:32,568 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:32,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-11-29 06:11:32,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:32,769 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:32,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:32,769 INFO L85 PathProgramCache]: Analyzing trace with hash -2133104112, now seen corresponding path program 1 times [2023-11-29 06:11:32,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:11:32,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568152776] [2023-11-29 06:11:32,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:32,770 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:32,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:11:32,771 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:11:32,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 06:11:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:11:32,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:11:32,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:11:33,280 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 06:11:33,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:11:33,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:11:33,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568152776] [2023-11-29 06:11:33,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568152776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:11:33,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:11:33,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:11:33,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483423315] [2023-11-29 06:11:33,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:11:33,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:11:33,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:11:33,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:11:33,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:11:33,283 INFO L87 Difference]: Start difference. First operand 96 states and 124 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 06:11:34,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:11:34,096 INFO L93 Difference]: Finished difference Result 148 states and 188 transitions. [2023-11-29 06:11:34,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:11:34,097 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 45 [2023-11-29 06:11:34,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:11:34,098 INFO L225 Difference]: With dead ends: 148 [2023-11-29 06:11:34,098 INFO L226 Difference]: Without dead ends: 113 [2023-11-29 06:11:34,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:11:34,099 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 15 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:11:34,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 551 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:11:34,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-29 06:11:34,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 96. [2023-11-29 06:11:34,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 71 states have internal predecessors, (84), 15 states have call successors, (15), 8 states have call predecessors, (15), 11 states have return successors, (19), 16 states have call predecessors, (19), 14 states have call successors, (19) [2023-11-29 06:11:34,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 118 transitions. [2023-11-29 06:11:34,109 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 118 transitions. Word has length 45 [2023-11-29 06:11:34,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:11:34,109 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 118 transitions. [2023-11-29 06:11:34,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 06:11:34,110 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 118 transitions. [2023-11-29 06:11:34,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 06:11:34,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:11:34,111 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:34,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-29 06:11:34,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:34,311 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:11:34,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:11:34,311 INFO L85 PathProgramCache]: Analyzing trace with hash -890656185, now seen corresponding path program 1 times [2023-11-29 06:11:34,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:11:34,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558664114] [2023-11-29 06:11:34,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:11:34,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:34,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:11:34,313 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:11:34,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-29 06:11:34,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:11:34,356 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:11:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:11:34,419 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-29 06:11:34,420 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 06:11:34,420 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-29 06:11:34,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-11-29 06:11:34,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-29 06:11:34,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:11:34,625 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:11:34,628 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:11:34,648 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated [2023-11-29 06:11:34,649 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated [2023-11-29 06:11:34,651 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret13 could not be translated [2023-11-29 06:11:34,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:11:34 BoogieIcfgContainer [2023-11-29 06:11:34,663 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:11:34,664 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:11:34,664 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:11:34,664 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:11:34,665 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:08:47" (3/4) ... [2023-11-29 06:11:34,666 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-29 06:11:34,671 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated [2023-11-29 06:11:34,672 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated [2023-11-29 06:11:34,673 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret13 could not be translated [2023-11-29 06:11:34,727 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 06:11:34,727 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:11:34,728 INFO L158 Benchmark]: Toolchain (without parser) took 171982.05ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 48.1MB in the beginning and 71.4MB in the end (delta: -23.3MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2023-11-29 06:11:34,728 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 71.3MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:11:34,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.65ms. Allocated memory is still 71.3MB. Free memory was 47.9MB in the beginning and 33.1MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 06:11:34,729 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.09ms. Allocated memory is still 71.3MB. Free memory was 33.1MB in the beginning and 31.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:11:34,729 INFO L158 Benchmark]: Boogie Preprocessor took 72.65ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 31.4MB in the beginning and 77.6MB in the end (delta: -46.2MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2023-11-29 06:11:34,730 INFO L158 Benchmark]: RCFGBuilder took 4317.34ms. Allocated memory is still 98.6MB. Free memory was 77.6MB in the beginning and 60.4MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 06:11:34,730 INFO L158 Benchmark]: TraceAbstraction took 167100.73ms. Allocated memory is still 98.6MB. Free memory was 59.7MB in the beginning and 74.7MB in the end (delta: -14.9MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2023-11-29 06:11:34,730 INFO L158 Benchmark]: Witness Printer took 63.08ms. Allocated memory is still 98.6MB. Free memory was 74.7MB in the beginning and 71.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 06:11:34,732 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 71.3MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.65ms. Allocated memory is still 71.3MB. Free memory was 47.9MB in the beginning and 33.1MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.09ms. Allocated memory is still 71.3MB. Free memory was 33.1MB in the beginning and 31.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.65ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 31.4MB in the beginning and 77.6MB in the end (delta: -46.2MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * RCFGBuilder took 4317.34ms. Allocated memory is still 98.6MB. Free memory was 77.6MB in the beginning and 60.4MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 167100.73ms. Allocated memory is still 98.6MB. Free memory was 59.7MB in the beginning and 74.7MB in the end (delta: -14.9MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Witness Printer took 63.08ms. Allocated memory is still 98.6MB. Free memory was 74.7MB in the beginning and 71.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret13 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret13 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 60]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L309] COND FALSE !(__VERIFIER_nondet_int()) [L312] CALL main2() [L269] unsigned int a ; [L270] unsigned int ma = __VERIFIER_nondet_uint(); [L271] signed char ea = __VERIFIER_nondet_char(); [L272] unsigned int b ; [L273] unsigned int mb = __VERIFIER_nondet_uint(); [L274] signed char eb = __VERIFIER_nondet_char(); [L275] unsigned int r_add1 ; [L276] unsigned int r_add2 ; [L277] unsigned int zero ; [L278] int tmp ; [L279] int tmp___0 ; [L280] int __retres14 ; [L284] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L72] COND TRUE ! m [L73] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L123] return (__retres4); [L284] RET, EXPR base2flt(0, 0) [L284] zero = base2flt(0, 0) [L285] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L72] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L78] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L100] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L102] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L119] m = m & ~ (1U << 24U) [L120] res = m | ((unsigned int )(e + 128) << 24U) [L121] __retres4 = res VAL [\old(e)=0, \old(m)=16777216, __retres4=2147483648, e=0, m=0, res=2147483648] [L123] return (__retres4); [L285] RET, EXPR base2flt(ma, ea) VAL [ea=0, ma=16777216, zero=0] [L285] a = base2flt(ma, ea) [L286] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=64, \old(m)=16777216] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=64, \old(m)=16777216, e=64, m=16777216] [L72] COND FALSE !(! m) VAL [\old(e)=64, \old(m)=16777216, e=64, m=16777216] [L78] COND FALSE !(m < 1U << 24U) VAL [\old(e)=64, \old(m)=16777216, e=64, m=16777216] [L100] COND TRUE 1 VAL [\old(e)=64, \old(m)=16777216, e=64, m=16777216] [L102] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=64, \old(m)=16777216, e=64, m=16777216] [L119] m = m & ~ (1U << 24U) [L120] res = m | ((unsigned int )(e + 128) << 24U) [L121] __retres4 = res VAL [\old(e)=64, \old(m)=16777216, __retres4=3221225472, e=64, m=0, res=3221225472] [L123] return (__retres4); [L286] RET, EXPR base2flt(mb, eb) VAL [a=2147483648, ea=0, eb=64, ma=16777216, mb=16777216, zero=0] [L286] b = base2flt(mb, eb) [L287] CALL addflt(a, b) VAL [\old(a)=2147483648, \old(b)=3221225472] [L127] unsigned int res ; [L128] unsigned int ma ; [L129] unsigned int mb ; [L130] unsigned int delta ; [L131] int ea ; [L132] int eb ; [L133] unsigned int tmp ; [L134] unsigned int __retres10 ; VAL [\old(a)=2147483648, \old(b)=3221225472, a=2147483648, b=3221225472] [L137] COND TRUE a < b [L138] tmp = a [L139] a = b [L140] b = tmp VAL [\old(a)=2147483648, \old(b)=3221225472, a=3221225472, b=2147483648, tmp=2147483648] [L144] COND FALSE !(! b) [L151] ma = a & ((1U << 24U) - 1U) [L152] ea = (int )(a >> 24U) - 128 [L153] ma = ma | (1U << 24U) [L154] mb = b & ((1U << 24U) - 1U) [L155] eb = (int )(b >> 24U) - 128 [L156] mb = mb | (1U << 24U) VAL [\old(a)=2147483648, \old(b)=3221225472, a=3221225472, b=2147483648, ea=64, eb=0, ma=16777216, mb=16777216, tmp=2147483648] [L157] CALL __VERIFIER_assert(ea >= eb) VAL [\old(cond)=1] [L59] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L157] RET __VERIFIER_assert(ea >= eb) VAL [\old(a)=2147483648, \old(b)=3221225472, a=3221225472, b=2147483648, ea=64, eb=0, ma=16777216, mb=16777216, tmp=2147483648] [L158] delta = ea - eb VAL [\old(a)=2147483648, \old(b)=3221225472, a=3221225472, b=2147483648, delta=64, ea=64, eb=0, ma=16777216, mb=16777216, tmp=2147483648] [L159] CALL __VERIFIER_assert(delta < sizeof(mb) * 8) VAL [\old(cond)=0] [L59] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L60] reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 48]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 57 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 167.0s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 28.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 264 SdHoareTripleChecker+Valid, 22.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 241 mSDsluCounter, 4175 SdHoareTripleChecker+Invalid, 21.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 142 IncrementalHoareTripleChecker+Unchecked, 3490 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 930 IncrementalHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 685 mSDtfsCounter, 930 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 472 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 26.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=9, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 105 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 26.4s SatisfiabilityAnalysisTime, 108.8s InterpolantComputationTime, 387 NumberOfCodeBlocks, 371 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 439 ConstructedInterpolants, 4 QuantifiedInterpolants, 953 SizeOfPredicates, 39 NumberOfNonLiveVariables, 701 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 163/183 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 proved your program to be incorrect! [2023-11-29 06:11:34,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57a033c-585a-4b7b-a25f-5140f87d20d8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE