./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d52da112b6c70caf5a0051f5b07592777e147cdc0a968527b7dd1b58dd51c406 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:40:27,182 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:40:27,240 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:40:27,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:40:27,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:40:27,266 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:40:27,266 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:40:27,267 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:40:27,267 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:40:27,267 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:40:27,267 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:40:27,267 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:40:27,268 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:40:27,268 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:40:27,268 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:40:27,268 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:40:27,268 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:40:27,268 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:40:27,268 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:40:27,268 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:40:27,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:40:27,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:40:27,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:40:27,269 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:40:27,269 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:40:27,269 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:40:27,269 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:40:27,269 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:40:27,269 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:40:27,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:40:27,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:40:27,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:40:27,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:40:27,270 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:40:27,270 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:40:27,270 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:40:27,270 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:40:27,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:40:27,270 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:40:27,270 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:40:27,270 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:40:27,270 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:40:27,270 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:40:27,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:40:27,270 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:40:27,271 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:40:27,271 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:40:27,271 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:40:27,271 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d52da112b6c70caf5a0051f5b07592777e147cdc0a968527b7dd1b58dd51c406 [2024-12-02 06:40:27,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:40:27,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:40:27,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:40:27,530 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:40:27,531 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:40:27,532 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i [2024-12-02 06:40:30,308 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/data/cb1f97b80/da3c0c25d8de4e33ae58eaea62bae8fe/FLAG7f5eab21f [2024-12-02 06:40:30,493 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:40:30,494 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i [2024-12-02 06:40:30,499 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/data/cb1f97b80/da3c0c25d8de4e33ae58eaea62bae8fe/FLAG7f5eab21f [2024-12-02 06:40:30,513 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/data/cb1f97b80/da3c0c25d8de4e33ae58eaea62bae8fe [2024-12-02 06:40:30,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:40:30,517 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:40:30,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:40:30,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:40:30,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:40:30,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:40:30" (1/1) ... [2024-12-02 06:40:30,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ea0a4b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:30, skipping insertion in model container [2024-12-02 06:40:30,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:40:30" (1/1) ... [2024-12-02 06:40:30,542 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:40:30,693 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i[915,928] [2024-12-02 06:40:30,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:40:30,749 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:40:30,762 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i[915,928] [2024-12-02 06:40:30,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:40:30,801 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:40:30,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:30 WrapperNode [2024-12-02 06:40:30,802 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:40:30,803 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:40:30,803 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:40:30,803 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:40:30,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:30" (1/1) ... [2024-12-02 06:40:30,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:30" (1/1) ... [2024-12-02 06:40:30,846 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135 [2024-12-02 06:40:30,846 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:40:30,847 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:40:30,847 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:40:30,847 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:40:30,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:30" (1/1) ... [2024-12-02 06:40:30,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:30" (1/1) ... [2024-12-02 06:40:30,860 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:30" (1/1) ... [2024-12-02 06:40:30,874 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]. [2024-12-02 06:40:30,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:30" (1/1) ... [2024-12-02 06:40:30,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:30" (1/1) ... [2024-12-02 06:40:30,880 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:30" (1/1) ... [2024-12-02 06:40:30,881 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:30" (1/1) ... [2024-12-02 06:40:30,885 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:30" (1/1) ... [2024-12-02 06:40:30,887 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:30" (1/1) ... [2024-12-02 06:40:30,888 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:30" (1/1) ... [2024-12-02 06:40:30,891 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:40:30,892 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:40:30,892 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:40:30,892 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:40:30,893 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:30" (1/1) ... [2024-12-02 06:40:30,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:40:30,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:40:30,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:40:30,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:40:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:40:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 06:40:30,957 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 06:40:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:40:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:40:30,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:40:31,032 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:40:31,033 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:40:31,264 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-12-02 06:40:31,264 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:40:31,271 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:40:31,271 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 06:40:31,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:31 BoogieIcfgContainer [2024-12-02 06:40:31,272 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:40:31,273 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:40:31,273 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:40:31,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:40:31,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:40:30" (1/3) ... [2024-12-02 06:40:31,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6793b439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:40:31, skipping insertion in model container [2024-12-02 06:40:31,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:30" (2/3) ... [2024-12-02 06:40:31,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6793b439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:40:31, skipping insertion in model container [2024-12-02 06:40:31,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:31" (3/3) ... [2024-12-02 06:40:31,279 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-92.i [2024-12-02 06:40:31,292 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:40:31,294 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-92.i that has 2 procedures, 61 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 06:40:31,347 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:40:31,358 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@14959d8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:40:31,358 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:40:31,363 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 42 states have internal predecessors, (56), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 06:40:31,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 06:40:31,375 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:31,375 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:31,376 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:31,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:31,382 INFO L85 PathProgramCache]: Analyzing trace with hash 500852861, now seen corresponding path program 1 times [2024-12-02 06:40:31,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:31,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236685821] [2024-12-02 06:40:31,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:31,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:31,611 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 06:40:31,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:31,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236685821] [2024-12-02 06:40:31,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236685821] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:40:31,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229997144] [2024-12-02 06:40:31,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:31,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:40:31,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:40:31,615 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:40:31,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:40:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:31,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 06:40:31,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:40:31,781 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 06:40:31,782 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:40:31,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229997144] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:31,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:40:31,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 06:40:31,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037892133] [2024-12-02 06:40:31,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:31,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:40:31,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:31,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:40:31,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:40:31,810 INFO L87 Difference]: Start difference. First operand has 61 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 42 states have internal predecessors, (56), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 06:40:31,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:31,832 INFO L93 Difference]: Finished difference Result 115 states and 191 transitions. [2024-12-02 06:40:31,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:40:31,834 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 111 [2024-12-02 06:40:31,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:31,839 INFO L225 Difference]: With dead ends: 115 [2024-12-02 06:40:31,839 INFO L226 Difference]: Without dead ends: 57 [2024-12-02 06:40:31,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:40:31,845 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:31,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:40:31,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-12-02 06:40:31,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-12-02 06:40:31,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 06:40:31,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 83 transitions. [2024-12-02 06:40:31,880 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 83 transitions. Word has length 111 [2024-12-02 06:40:31,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:31,880 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 83 transitions. [2024-12-02 06:40:31,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 06:40:31,881 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 83 transitions. [2024-12-02 06:40:31,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 06:40:31,884 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:31,884 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:31,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:40:32,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:40:32,085 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:32,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:32,086 INFO L85 PathProgramCache]: Analyzing trace with hash -2111517569, now seen corresponding path program 1 times [2024-12-02 06:40:32,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:32,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211071541] [2024-12-02 06:40:32,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:32,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:32,256 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 06:40:32,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:32,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211071541] [2024-12-02 06:40:32,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211071541] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:32,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:32,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:40:32,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755996547] [2024-12-02 06:40:32,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:32,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:40:32,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:32,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:40:32,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:40:32,259 INFO L87 Difference]: Start difference. First operand 57 states and 83 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 06:40:32,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:32,308 INFO L93 Difference]: Finished difference Result 153 states and 223 transitions. [2024-12-02 06:40:32,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:40:32,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2024-12-02 06:40:32,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:32,311 INFO L225 Difference]: With dead ends: 153 [2024-12-02 06:40:32,311 INFO L226 Difference]: Without dead ends: 99 [2024-12-02 06:40:32,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:40:32,312 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 57 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:32,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 209 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:40:32,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-12-02 06:40:32,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 96. [2024-12-02 06:40:32,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 63 states have (on average 1.2698412698412698) internal successors, (80), 64 states have internal predecessors, (80), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 06:40:32,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 140 transitions. [2024-12-02 06:40:32,327 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 140 transitions. Word has length 111 [2024-12-02 06:40:32,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:32,328 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 140 transitions. [2024-12-02 06:40:32,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 06:40:32,328 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 140 transitions. [2024-12-02 06:40:32,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 06:40:32,330 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:32,330 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:32,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:40:32,330 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:32,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:32,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1431459199, now seen corresponding path program 1 times [2024-12-02 06:40:32,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:32,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158068722] [2024-12-02 06:40:32,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:32,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:32,677 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 06:40:32,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:32,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158068722] [2024-12-02 06:40:32,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158068722] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:32,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:32,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:40:32,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363459923] [2024-12-02 06:40:32,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:32,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:40:32,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:32,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:40:32,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:40:32,680 INFO L87 Difference]: Start difference. First operand 96 states and 140 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 06:40:32,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:32,887 INFO L93 Difference]: Finished difference Result 191 states and 279 transitions. [2024-12-02 06:40:32,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:40:32,887 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2024-12-02 06:40:32,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:32,890 INFO L225 Difference]: With dead ends: 191 [2024-12-02 06:40:32,891 INFO L226 Difference]: Without dead ends: 98 [2024-12-02 06:40:32,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:40:32,892 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 26 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:32,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 157 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:40:32,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-12-02 06:40:32,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2024-12-02 06:40:32,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 64 states have internal predecessors, (78), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 06:40:32,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 138 transitions. [2024-12-02 06:40:32,908 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 138 transitions. Word has length 111 [2024-12-02 06:40:32,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:32,909 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 138 transitions. [2024-12-02 06:40:32,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 06:40:32,909 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 138 transitions. [2024-12-02 06:40:32,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 06:40:32,911 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:32,911 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:32,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:40:32,911 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:32,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:32,912 INFO L85 PathProgramCache]: Analyzing trace with hash -2076908260, now seen corresponding path program 1 times [2024-12-02 06:40:32,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:32,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850646757] [2024-12-02 06:40:32,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:32,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 06:40:32,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [589927017] [2024-12-02 06:40:32,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:32,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:40:32,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:40:32,994 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:40:32,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:40:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:40:33,102 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:40:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:40:33,186 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 06:40:33,186 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 06:40:33,187 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 06:40:33,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 06:40:33,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:40:33,391 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-12-02 06:40:33,458 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 06:40:33,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:40:33 BoogieIcfgContainer [2024-12-02 06:40:33,461 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 06:40:33,462 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 06:40:33,462 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 06:40:33,462 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 06:40:33,463 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:31" (3/4) ... [2024-12-02 06:40:33,465 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 06:40:33,466 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 06:40:33,467 INFO L158 Benchmark]: Toolchain (without parser) took 2949.59ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 73.6MB in the end (delta: 18.9MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2024-12-02 06:40:33,467 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:40:33,467 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.94ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 79.8MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:40:33,467 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.04ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:40:33,468 INFO L158 Benchmark]: Boogie Preprocessor took 44.11ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 76.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:40:33,468 INFO L158 Benchmark]: RCFGBuilder took 379.97ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 59.4MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 06:40:33,468 INFO L158 Benchmark]: TraceAbstraction took 2188.59ms. Allocated memory is still 117.4MB. Free memory was 58.9MB in the beginning and 73.6MB in the end (delta: -14.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:40:33,469 INFO L158 Benchmark]: Witness Printer took 3.71ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 73.6MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:40:33,470 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.94ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 79.8MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.04ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.11ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 76.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 379.97ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 59.4MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2188.59ms. Allocated memory is still 117.4MB. Free memory was 58.9MB in the beginning and 73.6MB in the end (delta: -14.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.71ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 73.6MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 95, overapproximation of someBinaryDOUBLEComparisonOperation at line 95, overapproximation of someBinaryDOUBLEComparisonOperation at line 81. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 32; [L23] signed char var_1_2 = 2; [L24] signed char var_1_3 = 8; [L25] signed char var_1_4 = 0; [L26] signed char var_1_5 = 32; [L27] signed char var_1_6 = 10; [L28] double var_1_7 = 1000000.625; [L29] double var_1_8 = 16.65; [L30] signed char var_1_9 = 25; [L31] unsigned char var_1_10 = 0; [L32] unsigned char var_1_11 = 0; [L33] float var_1_12 = 0.25; [L34] unsigned short int var_1_13 = 54726; VAL [isInitial=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L99] isInitial = 1 [L100] FCALL initially() [L102] FCALL updateLastVariables() [L103] CALL updateVariables() [L65] var_1_2 = __VERIFIER_nondet_char() [L66] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L66] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L67] CALL assume_abort_if_not(var_1_2 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L67] RET assume_abort_if_not(var_1_2 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L68] var_1_3 = __VERIFIER_nondet_char() [L69] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L69] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L70] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L70] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L71] var_1_4 = __VERIFIER_nondet_char() [L72] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L72] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L73] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L73] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L74] var_1_5 = __VERIFIER_nondet_char() [L75] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L75] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L76] CALL assume_abort_if_not(var_1_5 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L76] RET assume_abort_if_not(var_1_5 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L77] var_1_6 = __VERIFIER_nondet_char() [L78] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L78] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L79] CALL assume_abort_if_not(var_1_6 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L79] RET assume_abort_if_not(var_1_6 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L80] var_1_8 = __VERIFIER_nondet_double() [L81] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L81] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L82] var_1_10 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L83] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L84] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L84] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L85] var_1_11 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L86] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L87] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L87] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L88] var_1_13 = __VERIFIER_nondet_ushort() [L89] CALL assume_abort_if_not(var_1_13 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L89] RET assume_abort_if_not(var_1_13 >= 32767) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L90] CALL assume_abort_if_not(var_1_13 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L90] RET assume_abort_if_not(var_1_13 <= 65535) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L103] RET updateVariables() [L104] CALL step() [L38] var_1_1 = ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))) [L39] signed char stepLocal_0 = var_1_4; VAL [isInitial=1, stepLocal_0=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L40] EXPR var_1_6 & var_1_3 VAL [isInitial=1, stepLocal_0=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L40] COND TRUE ((~ var_1_5) * (var_1_6 & var_1_3)) >= stepLocal_0 [L41] var_1_7 = var_1_8 VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L43] unsigned char stepLocal_1 = var_1_10; VAL [isInitial=1, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L44] COND FALSE !(stepLocal_1 && var_1_11) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L47] signed long int stepLocal_4 = var_1_13 - var_1_5; [L48] unsigned char stepLocal_3 = var_1_10; [L49] unsigned char stepLocal_2 = var_1_10; VAL [isInitial=1, stepLocal_2=0, stepLocal_3=0, stepLocal_4=32767, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L50] COND FALSE !(var_1_11 || stepLocal_3) [L61] var_1_12 = var_1_8 VAL [isInitial=1, stepLocal_2=0, stepLocal_4=32767, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L104] RET step() [L105] CALL, EXPR property() [L95] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L95] EXPR var_1_6 & var_1_3 VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L95] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L95-L96] return (((var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : 1)) && ((var_1_10 && var_1_11) ? (var_1_9 == ((signed char) (var_1_3 - var_1_2))) : 1)) && ((var_1_11 || var_1_10) ? ((var_1_10 || (((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3))) < 32)) ? (((var_1_13 - var_1_5) < var_1_2) ? (var_1_12 == ((float) var_1_8)) : (var_1_12 == ((float) var_1_8))) : (var_1_12 == ((float) var_1_8))) : (var_1_12 == ((float) var_1_8))) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L19] reach_error() VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 449 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 170 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 71 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 279 mSDtfsCounter, 71 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=2, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 670 NumberOfCodeBlocks, 670 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 440 ConstructedInterpolants, 0 QuantifiedInterpolants, 1255 SizeOfPredicates, 0 NumberOfNonLiveVariables, 263 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2144/2176 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 06:40:33,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d52da112b6c70caf5a0051f5b07592777e147cdc0a968527b7dd1b58dd51c406 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:40:35,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:40:35,644 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 06:40:35,650 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:40:35,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:40:35,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:40:35,676 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:40:35,676 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:40:35,677 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:40:35,677 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:40:35,677 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:40:35,677 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:40:35,677 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:40:35,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:40:35,678 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:40:35,678 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:40:35,678 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:40:35,678 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:40:35,678 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:40:35,678 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:40:35,678 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:40:35,678 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:40:35,679 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:40:35,679 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 06:40:35,679 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 06:40:35,679 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 06:40:35,679 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:40:35,679 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:40:35,679 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:40:35,679 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:40:35,679 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:40:35,679 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:40:35,679 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:40:35,680 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:40:35,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:40:35,680 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:40:35,680 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:40:35,680 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:40:35,680 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:40:35,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:40:35,680 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:40:35,680 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:40:35,680 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:40:35,681 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:40:35,681 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 06:40:35,681 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 06:40:35,681 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:40:35,681 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:40:35,681 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:40:35,681 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:40:35,681 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d52da112b6c70caf5a0051f5b07592777e147cdc0a968527b7dd1b58dd51c406 [2024-12-02 06:40:35,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:40:35,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:40:35,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:40:35,968 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:40:35,968 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:40:35,969 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i [2024-12-02 06:40:38,786 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/data/61cf0c58e/cdd1688487f3404496b1a2668e4c5e28/FLAG78e400fbe [2024-12-02 06:40:38,978 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:40:38,978 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i [2024-12-02 06:40:38,987 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/data/61cf0c58e/cdd1688487f3404496b1a2668e4c5e28/FLAG78e400fbe [2024-12-02 06:40:39,338 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/data/61cf0c58e/cdd1688487f3404496b1a2668e4c5e28 [2024-12-02 06:40:39,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:40:39,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:40:39,341 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:40:39,341 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:40:39,345 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:40:39,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:40:39" (1/1) ... [2024-12-02 06:40:39,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42adf2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:39, skipping insertion in model container [2024-12-02 06:40:39,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:40:39" (1/1) ... [2024-12-02 06:40:39,359 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:40:39,474 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i[915,928] [2024-12-02 06:40:39,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:40:39,523 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:40:39,531 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i[915,928] [2024-12-02 06:40:39,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:40:39,563 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:40:39,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:39 WrapperNode [2024-12-02 06:40:39,564 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:40:39,565 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:40:39,565 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:40:39,565 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:40:39,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:39" (1/1) ... [2024-12-02 06:40:39,580 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:39" (1/1) ... [2024-12-02 06:40:39,602 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2024-12-02 06:40:39,603 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:40:39,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:40:39,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:40:39,604 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:40:39,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:39" (1/1) ... [2024-12-02 06:40:39,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:39" (1/1) ... [2024-12-02 06:40:39,615 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:39" (1/1) ... [2024-12-02 06:40:39,625 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]. [2024-12-02 06:40:39,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:39" (1/1) ... [2024-12-02 06:40:39,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:39" (1/1) ... [2024-12-02 06:40:39,632 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:39" (1/1) ... [2024-12-02 06:40:39,632 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:39" (1/1) ... [2024-12-02 06:40:39,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:39" (1/1) ... [2024-12-02 06:40:39,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:39" (1/1) ... [2024-12-02 06:40:39,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:39" (1/1) ... [2024-12-02 06:40:39,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:40:39,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:40:39,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:40:39,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:40:39,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:39" (1/1) ... [2024-12-02 06:40:39,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:40:39,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:40:39,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:40:39,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:40:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:40:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 06:40:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 06:40:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 06:40:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:40:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:40:39,763 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:40:39,765 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:40:40,477 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-12-02 06:40:40,477 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:40:40,485 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:40:40,485 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 06:40:40,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:40 BoogieIcfgContainer [2024-12-02 06:40:40,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:40:40,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:40:40,487 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:40:40,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:40:40,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:40:39" (1/3) ... [2024-12-02 06:40:40,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a28b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:40:40, skipping insertion in model container [2024-12-02 06:40:40,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:39" (2/3) ... [2024-12-02 06:40:40,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a28b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:40:40, skipping insertion in model container [2024-12-02 06:40:40,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:40" (3/3) ... [2024-12-02 06:40:40,494 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-92.i [2024-12-02 06:40:40,505 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:40:40,506 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-92.i that has 2 procedures, 52 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 06:40:40,547 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:40:40,558 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@565a69ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:40:40,558 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:40:40,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 06:40:40,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 06:40:40,568 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:40,569 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:40,569 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:40,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:40,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1811266942, now seen corresponding path program 1 times [2024-12-02 06:40:40,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:40:40,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668024234] [2024-12-02 06:40:40,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:40,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:40:40,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:40:40,585 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:40:40,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 06:40:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:40,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 06:40:40,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:40:40,796 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-12-02 06:40:40,797 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:40:40,797 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:40:40,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668024234] [2024-12-02 06:40:40,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668024234] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:40,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:40,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:40:40,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40993533] [2024-12-02 06:40:40,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:40,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:40:40,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:40:40,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:40:40,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:40:40,825 INFO L87 Difference]: Start difference. First operand has 52 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 06:40:40,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:40,852 INFO L93 Difference]: Finished difference Result 97 states and 163 transitions. [2024-12-02 06:40:40,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:40:40,854 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 108 [2024-12-02 06:40:40,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:40,860 INFO L225 Difference]: With dead ends: 97 [2024-12-02 06:40:40,861 INFO L226 Difference]: Without dead ends: 48 [2024-12-02 06:40:40,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:40:40,867 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:40,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:40:40,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-12-02 06:40:40,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-12-02 06:40:40,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 06:40:40,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 69 transitions. [2024-12-02 06:40:40,906 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 69 transitions. Word has length 108 [2024-12-02 06:40:40,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:40,907 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 69 transitions. [2024-12-02 06:40:40,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 06:40:40,907 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2024-12-02 06:40:40,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 06:40:40,910 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:40,910 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:40,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 06:40:41,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:40:41,111 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:41,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:41,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1752934588, now seen corresponding path program 1 times [2024-12-02 06:40:41,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:40:41,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503171441] [2024-12-02 06:40:41,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:41,112 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:40:41,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:40:41,114 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:40:41,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 06:40:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:41,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 06:40:41,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:40:41,306 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 06:40:41,307 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:40:41,307 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:40:41,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503171441] [2024-12-02 06:40:41,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503171441] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:41,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:40:41,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:40:41,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682331491] [2024-12-02 06:40:41,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:41,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:40:41,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:40:41,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:40:41,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:40:41,310 INFO L87 Difference]: Start difference. First operand 48 states and 69 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 06:40:41,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:41,684 INFO L93 Difference]: Finished difference Result 129 states and 186 transitions. [2024-12-02 06:40:41,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:40:41,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2024-12-02 06:40:41,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:41,694 INFO L225 Difference]: With dead ends: 129 [2024-12-02 06:40:41,694 INFO L226 Difference]: Without dead ends: 84 [2024-12-02 06:40:41,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:40:41,695 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 48 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:40:41,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 171 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:40:41,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-12-02 06:40:41,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2024-12-02 06:40:41,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 48 states have (on average 1.1875) internal successors, (57), 49 states have internal predecessors, (57), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 06:40:41,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 117 transitions. [2024-12-02 06:40:41,713 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 117 transitions. Word has length 108 [2024-12-02 06:40:41,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:41,714 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 117 transitions. [2024-12-02 06:40:41,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 06:40:41,714 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 117 transitions. [2024-12-02 06:40:41,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 06:40:41,716 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:41,716 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:41,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 06:40:41,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:40:41,917 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:41,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:41,918 INFO L85 PathProgramCache]: Analyzing trace with hash -767025346, now seen corresponding path program 1 times [2024-12-02 06:40:41,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:40:41,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264558249] [2024-12-02 06:40:41,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:41,918 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:40:41,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:40:41,921 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:40:41,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 06:40:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:42,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 06:40:42,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:40:59,298 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 256 proven. 162 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-12-02 06:40:59,298 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:41:50,106 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 06:41:50,106 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:41:50,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264558249] [2024-12-02 06:41:50,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [264558249] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:41:50,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 06:41:50,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 10] total 31 [2024-12-02 06:41:50,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526430016] [2024-12-02 06:41:50,107 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 06:41:50,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 06:41:50,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:41:50,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 06:41:50,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=735, Unknown=0, NotChecked=0, Total=930 [2024-12-02 06:41:50,110 INFO L87 Difference]: Start difference. First operand 81 states and 117 transitions. Second operand has 31 states, 31 states have (on average 2.3225806451612905) internal successors, (72), 29 states have internal predecessors, (72), 8 states have call successors, (34), 7 states have call predecessors, (34), 9 states have return successors, (34), 7 states have call predecessors, (34), 8 states have call successors, (34) [2024-12-02 06:42:47,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:42:47,954 INFO L93 Difference]: Finished difference Result 167 states and 198 transitions. [2024-12-02 06:42:47,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-12-02 06:42:47,961 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.3225806451612905) internal successors, (72), 29 states have internal predecessors, (72), 8 states have call successors, (34), 7 states have call predecessors, (34), 9 states have return successors, (34), 7 states have call predecessors, (34), 8 states have call successors, (34) Word has length 108 [2024-12-02 06:42:47,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:42:47,964 INFO L225 Difference]: With dead ends: 167 [2024-12-02 06:42:47,964 INFO L226 Difference]: Without dead ends: 165 [2024-12-02 06:42:47,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 77.5s TimeCoverageRelationStatistics Valid=563, Invalid=1987, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 06:42:47,967 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 142 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2024-12-02 06:42:47,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 415 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 15.7s Time] [2024-12-02 06:42:47,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-12-02 06:42:47,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 136. [2024-12-02 06:42:47,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 91 states have (on average 1.120879120879121) internal successors, (102), 92 states have internal predecessors, (102), 30 states have call successors, (30), 14 states have call predecessors, (30), 14 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 06:42:47,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 162 transitions. [2024-12-02 06:42:47,991 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 162 transitions. Word has length 108 [2024-12-02 06:42:47,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:42:47,992 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 162 transitions. [2024-12-02 06:42:47,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.3225806451612905) internal successors, (72), 29 states have internal predecessors, (72), 8 states have call successors, (34), 7 states have call predecessors, (34), 9 states have return successors, (34), 7 states have call predecessors, (34), 8 states have call successors, (34) [2024-12-02 06:42:47,993 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 162 transitions. [2024-12-02 06:42:47,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 06:42:47,994 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:42:47,994 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:42:47,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-12-02 06:42:48,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:42:48,195 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:42:48,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:42:48,195 INFO L85 PathProgramCache]: Analyzing trace with hash -86966976, now seen corresponding path program 1 times [2024-12-02 06:42:48,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:42:48,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405397642] [2024-12-02 06:42:48,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:42:48,196 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:42:48,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:42:48,197 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:42:48,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 06:42:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:42:48,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 06:42:48,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:43:13,126 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 276 proven. 201 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-12-02 06:43:13,126 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:44:09,971 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:44:09,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405397642] [2024-12-02 06:44:09,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405397642] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:44:09,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1770291829] [2024-12-02 06:44:09,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:44:09,971 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 06:44:09,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 06:44:09,978 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 06:44:09,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-12-02 06:44:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:44:10,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 06:44:10,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:45:18,468 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 288 proven. 195 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-12-02 06:45:18,468 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:46:16,864 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 06:46:16,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1770291829] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:46:16,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:46:16,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 37, 10] total 73 [2024-12-02 06:46:16,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664569376] [2024-12-02 06:46:16,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:46:16,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2024-12-02 06:46:16,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:46:16,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2024-12-02 06:46:16,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=894, Invalid=4508, Unknown=0, NotChecked=0, Total=5402 [2024-12-02 06:46:16,868 INFO L87 Difference]: Start difference. First operand 136 states and 162 transitions. Second operand has 73 states, 73 states have (on average 1.8493150684931507) internal successors, (135), 66 states have internal predecessors, (135), 21 states have call successors, (50), 20 states have call predecessors, (50), 25 states have return successors, (51), 20 states have call predecessors, (51), 21 states have call successors, (51) [2024-12-02 06:47:45,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:47:45,928 INFO L93 Difference]: Finished difference Result 200 states and 223 transitions. [2024-12-02 06:47:45,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-12-02 06:47:45,935 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 1.8493150684931507) internal successors, (135), 66 states have internal predecessors, (135), 21 states have call successors, (50), 20 states have call predecessors, (50), 25 states have return successors, (51), 20 states have call predecessors, (51), 21 states have call successors, (51) Word has length 108 [2024-12-02 06:47:45,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:47:45,938 INFO L225 Difference]: With dead ends: 200 [2024-12-02 06:47:45,938 INFO L226 Difference]: Without dead ends: 198 [2024-12-02 06:47:45,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3573 ImplicationChecksByTransitivity, 161.5s TimeCoverageRelationStatistics Valid=1582, Invalid=7538, Unknown=0, NotChecked=0, Total=9120 [2024-12-02 06:47:45,941 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 192 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:47:45,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 688 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 40.4s Time] [2024-12-02 06:47:45,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-12-02 06:47:45,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 164. [2024-12-02 06:47:45,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 111 states have (on average 1.0810810810810811) internal successors, (120), 112 states have internal predecessors, (120), 30 states have call successors, (30), 22 states have call predecessors, (30), 22 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 06:47:45,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 180 transitions. [2024-12-02 06:47:45,968 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 180 transitions. Word has length 108 [2024-12-02 06:47:45,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:47:45,969 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 180 transitions. [2024-12-02 06:47:45,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 1.8493150684931507) internal successors, (135), 66 states have internal predecessors, (135), 21 states have call successors, (50), 20 states have call predecessors, (50), 25 states have return successors, (51), 20 states have call predecessors, (51), 21 states have call successors, (51) [2024-12-02 06:47:45,969 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 180 transitions. [2024-12-02 06:47:45,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:47:45,971 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:47:45,971 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:47:45,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-12-02 06:47:46,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-12-02 06:47:46,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:47:46,372 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:47:46,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:47:46,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1899090784, now seen corresponding path program 1 times [2024-12-02 06:47:46,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:47:46,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980330022] [2024-12-02 06:47:46,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:47:46,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:47:46,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:47:46,375 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:47:46,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-12-02 06:47:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:47:46,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 06:47:46,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:47:46,733 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-12-02 06:47:46,733 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:47:46,931 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 06:47:46,932 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:47:46,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980330022] [2024-12-02 06:47:46,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980330022] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 06:47:46,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:47:46,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-12-02 06:47:46,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554717686] [2024-12-02 06:47:46,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:47:46,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:47:46,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:47:46,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:47:46,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-12-02 06:47:46,934 INFO L87 Difference]: Start difference. First operand 164 states and 180 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 06:47:47,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:47:47,725 INFO L93 Difference]: Finished difference Result 327 states and 358 transitions. [2024-12-02 06:47:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:47:47,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-12-02 06:47:47,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:47:47,727 INFO L225 Difference]: With dead ends: 327 [2024-12-02 06:47:47,727 INFO L226 Difference]: Without dead ends: 166 [2024-12-02 06:47:47,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:47:47,728 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 64 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:47:47,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 262 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:47:47,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-12-02 06:47:47,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 164. [2024-12-02 06:47:47,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 111 states have (on average 1.072072072072072) internal successors, (119), 112 states have internal predecessors, (119), 30 states have call successors, (30), 22 states have call predecessors, (30), 22 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 06:47:47,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 179 transitions. [2024-12-02 06:47:47,744 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 179 transitions. Word has length 109 [2024-12-02 06:47:47,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:47:47,744 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 179 transitions. [2024-12-02 06:47:47,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 06:47:47,744 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 179 transitions. [2024-12-02 06:47:47,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:47:47,745 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:47:47,746 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:47:47,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-12-02 06:47:47,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:47:47,946 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:47:47,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:47:47,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1586529886, now seen corresponding path program 1 times [2024-12-02 06:47:47,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:47:47,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989716990] [2024-12-02 06:47:47,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:47:47,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:47:47,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:47:47,949 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:47:47,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-12-02 06:47:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:47:48,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-02 06:47:48,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:48:08,160 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 294 proven. 159 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-12-02 06:48:08,160 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:49:38,455 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 06:49:38,455 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:49:38,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989716990] [2024-12-02 06:49:38,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1989716990] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:49:38,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 06:49:38,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 12] total 37 [2024-12-02 06:49:38,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5971086] [2024-12-02 06:49:38,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 06:49:38,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-12-02 06:49:38,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:49:38,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-12-02 06:49:38,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=1062, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 06:49:38,457 INFO L87 Difference]: Start difference. First operand 164 states and 179 transitions. Second operand has 37 states, 37 states have (on average 2.1621621621621623) internal successors, (80), 35 states have internal predecessors, (80), 10 states have call successors, (34), 8 states have call predecessors, (34), 11 states have return successors, (34), 9 states have call predecessors, (34), 10 states have call successors, (34) [2024-12-02 06:50:50,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:50:50,203 INFO L93 Difference]: Finished difference Result 211 states and 231 transitions. [2024-12-02 06:50:50,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-12-02 06:50:50,210 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.1621621621621623) internal successors, (80), 35 states have internal predecessors, (80), 10 states have call successors, (34), 8 states have call predecessors, (34), 11 states have return successors, (34), 9 states have call predecessors, (34), 10 states have call successors, (34) Word has length 109 [2024-12-02 06:50:50,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:50:50,211 INFO L225 Difference]: With dead ends: 211 [2024-12-02 06:50:50,212 INFO L226 Difference]: Without dead ends: 209 [2024-12-02 06:50:50,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 744 ImplicationChecksByTransitivity, 96.8s TimeCoverageRelationStatistics Valid=597, Invalid=2159, Unknown=0, NotChecked=0, Total=2756 [2024-12-02 06:50:50,213 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 153 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:50:50,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 419 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 34.1s Time] [2024-12-02 06:50:50,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-12-02 06:50:50,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 103. [2024-12-02 06:50:50,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 73 states have (on average 1.1232876712328768) internal successors, (82), 73 states have internal predecessors, (82), 17 states have call successors, (17), 12 states have call predecessors, (17), 12 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 06:50:50,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 116 transitions. [2024-12-02 06:50:50,231 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 116 transitions. Word has length 109 [2024-12-02 06:50:50,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:50:50,231 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 116 transitions. [2024-12-02 06:50:50,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.1621621621621623) internal successors, (80), 35 states have internal predecessors, (80), 10 states have call successors, (34), 8 states have call predecessors, (34), 11 states have return successors, (34), 9 states have call predecessors, (34), 10 states have call successors, (34) [2024-12-02 06:50:50,231 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 116 transitions. [2024-12-02 06:50:50,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:50:50,232 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:50:50,233 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:50:50,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-12-02 06:50:50,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:50:50,433 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:50:50,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:50:50,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1193502876, now seen corresponding path program 1 times [2024-12-02 06:50:50,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:50:50,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346000697] [2024-12-02 06:50:50,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:50,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:50:50,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:50:50,435 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:50:50,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-12-02 06:50:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:50,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-02 06:50:50,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:51:18,912 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 341 proven. 177 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-02 06:51:18,912 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:53:19,610 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 06:53:19,610 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:53:19,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346000697] [2024-12-02 06:53:19,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346000697] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:53:19,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 06:53:19,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 12] total 52 [2024-12-02 06:53:19,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669310710] [2024-12-02 06:53:19,610 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 06:53:19,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-12-02 06:53:19,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:53:19,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-12-02 06:53:19,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=546, Invalid=2106, Unknown=0, NotChecked=0, Total=2652 [2024-12-02 06:53:19,613 INFO L87 Difference]: Start difference. First operand 103 states and 116 transitions. Second operand has 52 states, 52 states have (on average 1.8269230769230769) internal successors, (95), 48 states have internal predecessors, (95), 15 states have call successors, (34), 13 states have call predecessors, (34), 16 states have return successors, (34), 14 states have call predecessors, (34), 15 states have call successors, (34) [2024-12-02 06:55:00,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:00,385 INFO L93 Difference]: Finished difference Result 132 states and 146 transitions. [2024-12-02 06:55:00,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-12-02 06:55:00,392 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 1.8269230769230769) internal successors, (95), 48 states have internal predecessors, (95), 15 states have call successors, (34), 13 states have call predecessors, (34), 16 states have return successors, (34), 14 states have call predecessors, (34), 15 states have call successors, (34) Word has length 109 [2024-12-02 06:55:00,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:00,393 INFO L225 Difference]: With dead ends: 132 [2024-12-02 06:55:00,393 INFO L226 Difference]: Without dead ends: 130 [2024-12-02 06:55:00,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1309 ImplicationChecksByTransitivity, 142.2s TimeCoverageRelationStatistics Valid=941, Invalid=3615, Unknown=0, NotChecked=0, Total=4556 [2024-12-02 06:55:00,396 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 134 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:00,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 708 Invalid, 1247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 50.6s Time] [2024-12-02 06:55:00,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-12-02 06:55:00,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 98. [2024-12-02 06:55:00,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 68 states have (on average 1.088235294117647) internal successors, (74), 68 states have internal predecessors, (74), 17 states have call successors, (17), 12 states have call predecessors, (17), 12 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 06:55:00,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2024-12-02 06:55:00,410 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 108 transitions. Word has length 109 [2024-12-02 06:55:00,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:00,411 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 108 transitions. [2024-12-02 06:55:00,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 1.8269230769230769) internal successors, (95), 48 states have internal predecessors, (95), 15 states have call successors, (34), 13 states have call predecessors, (34), 16 states have return successors, (34), 14 states have call predecessors, (34), 15 states have call successors, (34) [2024-12-02 06:55:00,411 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 108 transitions. [2024-12-02 06:55:00,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 06:55:00,413 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:00,413 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:55:00,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-12-02 06:55:00,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:55:00,614 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:00,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:00,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1019396977, now seen corresponding path program 1 times [2024-12-02 06:55:00,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:55:00,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658494371] [2024-12-02 06:55:00,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:00,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:55:00,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:55:00,616 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:55:00,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-12-02 06:55:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:00,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 06:55:00,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:55:02,121 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 288 proven. 108 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-12-02 06:55:02,121 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:55:02,613 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 06:55:02,613 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:55:02,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658494371] [2024-12-02 06:55:02,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [658494371] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:55:02,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 06:55:02,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 6] total 19 [2024-12-02 06:55:02,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661288233] [2024-12-02 06:55:02,614 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 06:55:02,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 06:55:02,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:55:02,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 06:55:02,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:55:02,615 INFO L87 Difference]: Start difference. First operand 98 states and 108 transitions. Second operand has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 18 states have internal predecessors, (68), 6 states have call successors, (33), 5 states have call predecessors, (33), 9 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2024-12-02 06:55:05,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:05,064 INFO L93 Difference]: Finished difference Result 205 states and 223 transitions. [2024-12-02 06:55:05,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 06:55:05,070 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 18 states have internal predecessors, (68), 6 states have call successors, (33), 5 states have call predecessors, (33), 9 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 110 [2024-12-02 06:55:05,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:05,072 INFO L225 Difference]: With dead ends: 205 [2024-12-02 06:55:05,072 INFO L226 Difference]: Without dead ends: 110 [2024-12-02 06:55:05,073 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2024-12-02 06:55:05,073 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 105 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:05,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 211 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 06:55:05,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-12-02 06:55:05,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2024-12-02 06:55:05,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 74 states have (on average 1.0675675675675675) internal successors, (79), 74 states have internal predecessors, (79), 17 states have call successors, (17), 14 states have call predecessors, (17), 14 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 06:55:05,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 113 transitions. [2024-12-02 06:55:05,086 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 113 transitions. Word has length 110 [2024-12-02 06:55:05,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:05,086 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 113 transitions. [2024-12-02 06:55:05,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 18 states have internal predecessors, (68), 6 states have call successors, (33), 5 states have call predecessors, (33), 9 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2024-12-02 06:55:05,086 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 113 transitions. [2024-12-02 06:55:05,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 06:55:05,087 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:05,087 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:55:05,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-12-02 06:55:05,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:55:05,288 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:05,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:05,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1021244019, now seen corresponding path program 1 times [2024-12-02 06:55:05,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:55:05,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132264743] [2024-12-02 06:55:05,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:05,289 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 06:55:05,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:55:05,290 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 06:55:05,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfebf9d7-06e8-4710-8b51-1f650a52bff4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-12-02 06:55:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:05,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 06:55:05,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:55:26,876 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 256 proven. 162 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-12-02 06:55:26,876 INFO L312 TraceCheckSpWp]: Computing backward predicates...