./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.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_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB --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 ee450cdb7362593087eaa4f51cf0609baf72f213a54e3b9dfb94348c9a8e8899 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:07:35,360 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:07:35,451 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:07:35,460 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:07:35,460 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:07:35,503 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:07:35,504 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:07:35,504 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:07:35,504 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:07:35,504 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:07:35,505 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:07:35,505 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:07:35,505 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:07:35,505 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:07:35,505 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:07:35,505 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:07:35,506 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:07:35,506 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:07:35,508 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:07:35,508 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:07:35,508 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:07:35,508 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:07:35,509 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:07:35,509 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:07:35,509 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:07:35,509 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:07:35,509 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:07:35,509 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:07:35,509 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:07:35,509 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:07:35,510 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:07:35,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:07:35,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:07:35,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:07:35,510 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:07:35,511 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:07:35,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:07:35,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:07:35,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:07:35,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:07:35,511 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:07:35,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:07:35,511 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:07:35,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:07:35,512 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:07:35,512 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:07:35,512 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:07:35,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:07:35,512 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_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB 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 -> ee450cdb7362593087eaa4f51cf0609baf72f213a54e3b9dfb94348c9a8e8899 [2024-11-28 03:07:35,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:07:35,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:07:35,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:07:35,826 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:07:35,826 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:07:35,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i [2024-11-28 03:07:38,824 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/data/5b514a3b2/9991be5fca5e4d07a1e7e04394c03701/FLAG0121bd5ea [2024-11-28 03:07:39,174 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:07:39,176 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i [2024-11-28 03:07:39,192 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/data/5b514a3b2/9991be5fca5e4d07a1e7e04394c03701/FLAG0121bd5ea [2024-11-28 03:07:39,217 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/data/5b514a3b2/9991be5fca5e4d07a1e7e04394c03701 [2024-11-28 03:07:39,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:07:39,223 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:07:39,225 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:07:39,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:07:39,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:07:39,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@213c03d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39, skipping insertion in model container [2024-11-28 03:07:39,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,256 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:07:39,450 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_5193596e-4137-40ff-969e-52f4005fb3d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i[915,928] [2024-11-28 03:07:39,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:07:39,518 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:07:39,531 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_5193596e-4137-40ff-969e-52f4005fb3d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i[915,928] [2024-11-28 03:07:39,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:07:39,574 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:07:39,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39 WrapperNode [2024-11-28 03:07:39,575 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:07:39,576 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:07:39,576 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:07:39,576 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:07:39,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,596 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,619 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 72 [2024-11-28 03:07:39,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:07:39,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:07:39,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:07:39,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:07:39,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,636 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,659 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]. [2024-11-28 03:07:39,660 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,660 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,667 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,671 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,675 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,679 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,680 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:07:39,684 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:07:39,684 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:07:39,684 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:07:39,685 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (1/1) ... [2024-11-28 03:07:39,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:07:39,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:39,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:07:39,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:07:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:07:39,758 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:07:39,758 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:07:39,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:07:39,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:07:39,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:07:39,836 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:07:39,839 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:07:40,075 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-28 03:07:40,076 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:07:40,087 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:07:40,087 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:07:40,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:40 BoogieIcfgContainer [2024-11-28 03:07:40,088 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:07:40,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:07:40,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:07:40,096 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:07:40,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:07:39" (1/3) ... [2024-11-28 03:07:40,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56eea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:07:40, skipping insertion in model container [2024-11-28 03:07:40,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:39" (2/3) ... [2024-11-28 03:07:40,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56eea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:07:40, skipping insertion in model container [2024-11-28 03:07:40,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:40" (3/3) ... [2024-11-28 03:07:40,100 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-49.i [2024-11-28 03:07:40,118 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:07:40,120 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-49.i that has 2 procedures, 34 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:07:40,181 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:07:40,199 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;@7c4f2d79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:07:40,199 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:07:40,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:07:40,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 03:07:40,213 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:40,213 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:40,214 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:40,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:40,220 INFO L85 PathProgramCache]: Analyzing trace with hash -783009165, now seen corresponding path program 1 times [2024-11-28 03:07:40,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:40,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375529341] [2024-11-28 03:07:40,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:40,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:40,478 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-28 03:07:40,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:07:40,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375529341] [2024-11-28 03:07:40,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375529341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:07:40,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569653699] [2024-11-28 03:07:40,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:40,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:07:40,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:40,493 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:07:40,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:07:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:40,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:07:40,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:40,687 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-28 03:07:40,687 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:07:40,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569653699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:40,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:07:40,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:07:40,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713504979] [2024-11-28 03:07:40,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:40,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:07:40,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:07:40,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:07:40,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:07:40,726 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:07:40,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:40,751 INFO L93 Difference]: Finished difference Result 61 states and 94 transitions. [2024-11-28 03:07:40,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:07:40,754 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2024-11-28 03:07:40,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:40,761 INFO L225 Difference]: With dead ends: 61 [2024-11-28 03:07:40,761 INFO L226 Difference]: Without dead ends: 30 [2024-11-28 03:07:40,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:07:40,769 INFO L435 NwaCegarLoop]: 39 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, 39 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 [2024-11-28 03:07:40,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:07:40,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-28 03:07:40,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-28 03:07:40,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:07:40,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2024-11-28 03:07:40,825 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 55 [2024-11-28 03:07:40,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:40,826 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2024-11-28 03:07:40,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:07:40,826 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-11-28 03:07:40,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 03:07:40,830 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:40,831 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:40,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:07:41,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:07:41,035 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:41,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:41,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1077986871, now seen corresponding path program 1 times [2024-11-28 03:07:41,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:07:41,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938035711] [2024-11-28 03:07:41,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:41,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:07:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:07:41,147 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:07:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:07:41,208 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:07:41,209 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:07:41,210 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:07:41,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:07:41,216 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 03:07:41,257 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:07:41,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:07:41 BoogieIcfgContainer [2024-11-28 03:07:41,261 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:07:41,261 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:07:41,262 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:07:41,262 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:07:41,263 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:40" (3/4) ... [2024-11-28 03:07:41,265 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:07:41,266 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:07:41,267 INFO L158 Benchmark]: Toolchain (without parser) took 2044.82ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 84.7MB in the end (delta: 8.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-28 03:07:41,267 INFO L158 Benchmark]: CDTParser took 1.33ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:07:41,268 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.97ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 81.4MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:07:41,268 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.71ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:07:41,269 INFO L158 Benchmark]: Boogie Preprocessor took 59.07ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 78.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:07:41,269 INFO L158 Benchmark]: RCFGBuilder took 403.63ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 67.4MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:07:41,270 INFO L158 Benchmark]: TraceAbstraction took 1170.60ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 85.3MB in the end (delta: -18.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:07:41,270 INFO L158 Benchmark]: Witness Printer took 4.77ms. Allocated memory is still 117.4MB. Free memory was 85.3MB in the beginning and 84.7MB in the end (delta: 549.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:07:41,272 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.33ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.97ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 81.4MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.71ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.07ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 78.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 403.63ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 67.4MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1170.60ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 85.3MB in the end (delta: -18.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.77ms. Allocated memory is still 117.4MB. Free memory was 85.3MB in the beginning and 84.7MB in the end (delta: 549.7kB). 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 61, overapproximation of someBinaryFLOATComparisonOperation at line 56, overapproximation of someBinaryFLOATComparisonOperation at line 54. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 0.25; [L23] signed long int var_1_2 = 64; [L24] signed long int var_1_3 = -1; [L25] signed long int var_1_4 = -256; [L26] float var_1_5 = 3.5; [L27] float var_1_6 = 32.5; VAL [isInitial=0, var_1_1=1/4, var_1_2=64, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L65] isInitial = 1 [L66] FCALL initially() [L68] FCALL updateLastVariables() [L69] CALL updateVariables() [L44] var_1_2 = __VERIFIER_nondet_long() [L45] CALL assume_abort_if_not(var_1_2 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L45] RET assume_abort_if_not(var_1_2 >= -2147483648) VAL [isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L46] CALL assume_abort_if_not(var_1_2 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L46] RET assume_abort_if_not(var_1_2 <= 2147483647) VAL [isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L47] var_1_3 = __VERIFIER_nondet_long() [L48] CALL assume_abort_if_not(var_1_3 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L48] RET assume_abort_if_not(var_1_3 >= -2147483648) VAL [isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L49] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L49] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L50] var_1_4 = __VERIFIER_nondet_long() [L51] CALL assume_abort_if_not(var_1_4 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_5=7/2, var_1_6=65/2] [L51] RET assume_abort_if_not(var_1_4 >= -2147483648) VAL [isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_5=7/2, var_1_6=65/2] [L52] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_5=7/2, var_1_6=65/2] [L52] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_5=7/2, var_1_6=65/2] [L53] var_1_5 = __VERIFIER_nondet_float() [L54] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_6=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_6=65/2] [L54] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_6=65/2] [L55] var_1_6 = __VERIFIER_nondet_float() [L56] CALL assume_abort_if_not((var_1_6 >= -922337.2036854765600e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0] [L56] RET assume_abort_if_not((var_1_6 >= -922337.2036854765600e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0] [L69] RET updateVariables() [L70] CALL step() [L31] signed long int stepLocal_1 = var_1_2; [L32] signed long int stepLocal_0 = var_1_2; VAL [isInitial=1, stepLocal_0=-100001, stepLocal_1=-100001, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0] [L33] COND FALSE !(-100000 <= stepLocal_1) [L40] var_1_1 = var_1_6 VAL [isInitial=1, stepLocal_0=-100001, var_1_1=69, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_6=69] [L70] RET step() [L71] CALL, EXPR property() [L61-L62] return (-100000 <= var_1_2) ? ((var_1_2 <= (var_1_3 + var_1_4)) ? (var_1_1 == ((float) ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))))) : (var_1_1 == ((float) ((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) : (var_1_1 == ((float) var_1_6)) ; VAL [\result=0, isInitial=1, var_1_1=69, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_6=69] [L71] RET, EXPR property() [L71] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=69, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_6=69] [L19] reach_error() VAL [isInitial=1, var_1_1=69, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_6=69] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 39 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 139 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 210/224 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 [2024-11-28 03:07:41,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/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_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB --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 ee450cdb7362593087eaa4f51cf0609baf72f213a54e3b9dfb94348c9a8e8899 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:07:44,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:07:44,292 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 03:07:44,303 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:07:44,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:07:44,393 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:07:44,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:07:44,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:07:44,400 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:07:44,400 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:07:44,400 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:07:44,400 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:07:44,401 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:07:44,401 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:07:44,401 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:07:44,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:07:44,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:07:44,402 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:07:44,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:07:44,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:07:44,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:07:44,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:07:44,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:07:44,402 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:07:44,402 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:07:44,402 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:07:44,403 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:07:44,403 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:07:44,408 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:07:44,408 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:07:44,408 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:07:44,408 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:07:44,408 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:07:44,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:07:44,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:07:44,409 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:07:44,409 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:07:44,409 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:07:44,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:07:44,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:07:44,409 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:07:44,409 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:07:44,410 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:07:44,410 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:07:44,410 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:07:44,410 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:07:44,410 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:07:44,410 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:07:44,410 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:07:44,410 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:07:44,410 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_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB 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 -> ee450cdb7362593087eaa4f51cf0609baf72f213a54e3b9dfb94348c9a8e8899 [2024-11-28 03:07:44,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:07:44,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:07:44,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:07:44,810 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:07:44,811 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:07:44,814 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i [2024-11-28 03:07:47,957 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/data/4d16107ac/a3e8c04b579b47c8a6bb7b294fb46b89/FLAGe3613c844 [2024-11-28 03:07:48,214 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:07:48,215 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i [2024-11-28 03:07:48,234 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/data/4d16107ac/a3e8c04b579b47c8a6bb7b294fb46b89/FLAGe3613c844 [2024-11-28 03:07:48,259 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/data/4d16107ac/a3e8c04b579b47c8a6bb7b294fb46b89 [2024-11-28 03:07:48,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:07:48,268 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:07:48,270 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:07:48,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:07:48,277 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:07:48,279 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:48" (1/1) ... [2024-11-28 03:07:48,280 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@701437e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48, skipping insertion in model container [2024-11-28 03:07:48,280 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:48" (1/1) ... [2024-11-28 03:07:48,305 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:07:48,498 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_5193596e-4137-40ff-969e-52f4005fb3d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i[915,928] [2024-11-28 03:07:48,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:07:48,571 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:07:48,583 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_5193596e-4137-40ff-969e-52f4005fb3d6/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i[915,928] [2024-11-28 03:07:48,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:07:48,633 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:07:48,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48 WrapperNode [2024-11-28 03:07:48,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:07:48,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:07:48,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:07:48,636 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:07:48,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2024-11-28 03:07:48,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2024-11-28 03:07:48,696 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 69 [2024-11-28 03:07:48,699 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:07:48,700 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:07:48,700 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:07:48,700 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:07:48,711 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2024-11-28 03:07:48,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2024-11-28 03:07:48,715 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2024-11-28 03:07:48,735 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]. [2024-11-28 03:07:48,735 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2024-11-28 03:07:48,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2024-11-28 03:07:48,747 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2024-11-28 03:07:48,752 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2024-11-28 03:07:48,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2024-11-28 03:07:48,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2024-11-28 03:07:48,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2024-11-28 03:07:48,770 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:07:48,771 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:07:48,771 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:07:48,771 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:07:48,773 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (1/1) ... [2024-11-28 03:07:48,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:07:48,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:07:48,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:07:48,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:07:48,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:07:48,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:07:48,857 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:07:48,857 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:07:48,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:07:48,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:07:48,961 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:07:48,964 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:07:49,211 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-28 03:07:49,211 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:07:49,228 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:07:49,228 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:07:49,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:49 BoogieIcfgContainer [2024-11-28 03:07:49,229 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:07:49,231 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:07:49,231 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:07:49,238 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:07:49,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:07:48" (1/3) ... [2024-11-28 03:07:49,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52058fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:07:49, skipping insertion in model container [2024-11-28 03:07:49,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:48" (2/3) ... [2024-11-28 03:07:49,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52058fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:07:49, skipping insertion in model container [2024-11-28 03:07:49,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:49" (3/3) ... [2024-11-28 03:07:49,242 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-49.i [2024-11-28 03:07:49,260 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:07:49,262 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-49.i that has 2 procedures, 34 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:07:49,339 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:07:49,358 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;@11e5aca1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:07:49,359 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:07:49,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:07:49,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 03:07:49,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:49,377 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:49,377 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:49,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:49,386 INFO L85 PathProgramCache]: Analyzing trace with hash -783009165, now seen corresponding path program 1 times [2024-11-28 03:07:49,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:07:49,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956978756] [2024-11-28 03:07:49,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:49,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:07:49,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:07:49,408 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:07:49,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-28 03:07:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:49,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:07:49,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:49,672 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-28 03:07:49,673 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:07:49,676 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:07:49,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956978756] [2024-11-28 03:07:49,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956978756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:49,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:49,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:07:49,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402456115] [2024-11-28 03:07:49,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:49,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:07:49,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:07:49,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:07:49,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:07:49,713 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:07:49,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:49,746 INFO L93 Difference]: Finished difference Result 61 states and 94 transitions. [2024-11-28 03:07:49,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:07:49,749 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2024-11-28 03:07:49,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:49,756 INFO L225 Difference]: With dead ends: 61 [2024-11-28 03:07:49,756 INFO L226 Difference]: Without dead ends: 30 [2024-11-28 03:07:49,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:07:49,769 INFO L435 NwaCegarLoop]: 39 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, 39 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 [2024-11-28 03:07:49,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:07:49,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-28 03:07:49,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-28 03:07:49,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:07:49,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2024-11-28 03:07:49,826 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 55 [2024-11-28 03:07:49,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:49,827 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2024-11-28 03:07:49,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:07:49,828 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-11-28 03:07:49,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 03:07:49,831 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:49,832 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:49,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-28 03:07:50,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:07:50,033 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:50,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:50,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1077986871, now seen corresponding path program 1 times [2024-11-28 03:07:50,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:07:50,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512693657] [2024-11-28 03:07:50,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:50,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:07:50,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:07:50,049 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:07:50,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-28 03:07:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:50,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:07:50,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:54,957 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-28 03:07:54,957 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:07:54,958 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:07:54,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512693657] [2024-11-28 03:07:54,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512693657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:07:54,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:07:54,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:07:54,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474977495] [2024-11-28 03:07:54,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:07:54,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:07:54,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:07:54,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:07:54,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:07:54,962 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 03:07:55,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:07:55,890 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2024-11-28 03:07:55,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:07:55,891 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 55 [2024-11-28 03:07:55,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:07:55,893 INFO L225 Difference]: With dead ends: 44 [2024-11-28 03:07:55,893 INFO L226 Difference]: Without dead ends: 42 [2024-11-28 03:07:55,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:07:55,895 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 43 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:07:55,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 120 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:07:55,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-28 03:07:55,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2024-11-28 03:07:55,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:07:55,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2024-11-28 03:07:55,907 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 55 [2024-11-28 03:07:55,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:07:55,907 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2024-11-28 03:07:55,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 03:07:55,908 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2024-11-28 03:07:55,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 03:07:55,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:07:55,910 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:07:55,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-28 03:07:56,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:07:56,114 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:07:56,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:07:56,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1177705700, now seen corresponding path program 1 times [2024-11-28 03:07:56,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:07:56,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123194903] [2024-11-28 03:07:56,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:07:56,115 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:07:56,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:07:56,120 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:07:56,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-28 03:07:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:07:56,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:07:56,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:07:58,784 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 43 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 03:07:58,785 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:08:08,882 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-28 03:08:08,882 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:08:08,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123194903] [2024-11-28 03:08:08,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123194903] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:08:08,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:08:08,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-28 03:08:08,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572415867] [2024-11-28 03:08:08,883 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:08:08,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:08:08,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:08:08,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:08:08,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:08:08,885 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 03:08:11,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:11,041 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2024-11-28 03:08:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:08:11,044 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 56 [2024-11-28 03:08:11,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:11,045 INFO L225 Difference]: With dead ends: 49 [2024-11-28 03:08:11,045 INFO L226 Difference]: Without dead ends: 47 [2024-11-28 03:08:11,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:08:11,047 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 54 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:11,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 207 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:08:11,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-28 03:08:11,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2024-11-28 03:08:11,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.103448275862069) internal successors, (32), 29 states have internal predecessors, (32), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:08:11,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2024-11-28 03:08:11,057 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 56 [2024-11-28 03:08:11,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:11,057 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2024-11-28 03:08:11,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 03:08:11,058 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2024-11-28 03:08:11,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 03:08:11,059 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:08:11,059 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:08:11,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-28 03:08:11,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:08:11,263 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:08:11,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:11,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1175858658, now seen corresponding path program 1 times [2024-11-28 03:08:11,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:08:11,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483140922] [2024-11-28 03:08:11,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:11,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:08:11,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:08:11,268 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:08:11,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:08:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:11,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:08:11,396 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:08:13,551 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 03:08:13,551 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:08:13,551 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:08:13,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483140922] [2024-11-28 03:08:13,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483140922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:08:13,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:08:13,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:08:13,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535071587] [2024-11-28 03:08:13,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:13,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:08:13,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:08:13,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:08:13,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:08:13,553 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:08:14,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:14,813 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2024-11-28 03:08:14,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:08:14,815 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2024-11-28 03:08:14,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:14,815 INFO L225 Difference]: With dead ends: 44 [2024-11-28 03:08:14,815 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:08:14,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:08:14,817 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 28 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:14,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 133 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:08:14,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:08:14,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:08:14,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:08:14,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:08:14,819 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2024-11-28 03:08:14,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:14,819 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:08:14,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:08:14,819 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:08:14,819 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:08:14,822 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:08:14,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:08:15,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:08:15,025 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:08:15,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:08:16,990 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:08:17,006 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 03:08:17,007 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 03:08:17,007 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 03:08:17,007 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 03:08:17,007 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 03:08:17,008 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 03:08:17,008 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 03:08:17,009 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 03:08:17,009 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 03:08:17,009 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-28 03:08:17,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:08:17 BoogieIcfgContainer [2024-11-28 03:08:17,009 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:08:17,011 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:08:17,011 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:08:17,011 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:08:17,012 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:49" (3/4) ... [2024-11-28 03:08:17,015 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:08:17,021 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 03:08:17,025 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-28 03:08:17,027 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 03:08:17,027 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:08:17,027 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:08:17,118 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:08:17,118 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:08:17,118 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:08:17,119 INFO L158 Benchmark]: Toolchain (without parser) took 28853.06ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 92.8MB in the beginning and 145.0MB in the end (delta: -52.1MB). Peak memory consumption was 98.4MB. Max. memory is 16.1GB. [2024-11-28 03:08:17,120 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 117.4MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:08:17,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.62ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 80.5MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:08:17,123 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.30ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:08:17,123 INFO L158 Benchmark]: Boogie Preprocessor took 70.37ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.3MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:08:17,123 INFO L158 Benchmark]: RCFGBuilder took 457.69ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 65.4MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:08:17,124 INFO L158 Benchmark]: TraceAbstraction took 27778.20ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 64.9MB in the beginning and 150.2MB in the end (delta: -85.3MB). Peak memory consumption was 64.8MB. Max. memory is 16.1GB. [2024-11-28 03:08:17,124 INFO L158 Benchmark]: Witness Printer took 107.58ms. Allocated memory is still 268.4MB. Free memory was 150.2MB in the beginning and 145.0MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:08:17,127 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 117.4MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.62ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 80.5MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.30ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.37ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.3MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 457.69ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 65.4MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 27778.20ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 64.9MB in the beginning and 150.2MB in the end (delta: -85.3MB). Peak memory consumption was 64.8MB. Max. memory is 16.1GB. * Witness Printer took 107.58ms. Allocated memory is still 268.4MB. Free memory was 150.2MB in the beginning and 145.0MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.7s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 144 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 499 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 384 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 669 IncrementalHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 115 mSDtfsCounter, 669 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 287 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=3, InterpolantAutomatonStates: 44, 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, 4 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 19.7s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 273 ConstructedInterpolants, 3 QuantifiedInterpolants, 3115 SizeOfPredicates, 27 NumberOfNonLiveVariables, 378 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 554/560 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 03:08:17,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193596e-4137-40ff-969e-52f4005fb3d6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE