./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-nonlinear/bound-grocery.c --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_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-nonlinear/bound-grocery.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3d98f9912f2edd7d39da105bd0d4d0aa0050c2422dc467789771f1f7cd0212f6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:41:10,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:41:10,870 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:41:10,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:41:10,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:41:10,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:41:10,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:41:10,897 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:41:10,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:41:10,898 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:41:10,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:41:10,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:41:10,898 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:41:10,898 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:41:10,898 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:41:10,899 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:41:10,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:41:10,899 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:41:10,899 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:41:10,899 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:41:10,899 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:41:10,899 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:41:10,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:41:10,899 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:41:10,899 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:41:10,899 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:41:10,899 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:41:10,900 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:41:10,900 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:41:10,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:41:10,900 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:41:10,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:41:10,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:41:10,900 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:41:10,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:41:10,900 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:41:10,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:41:10,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:41:10,901 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:41:10,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:41:10,901 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:41:10,901 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:41:10,901 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:41:10,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:41:10,901 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:41:10,901 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:41:10,901 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:41:10,901 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:41:10,901 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_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d98f9912f2edd7d39da105bd0d4d0aa0050c2422dc467789771f1f7cd0212f6 [2024-12-02 11:41:11,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:41:11,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:41:11,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:41:11,151 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:41:11,152 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:41:11,153 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/floats-nonlinear/bound-grocery.c [2024-12-02 11:41:13,845 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/data/a14feba36/1fd94b3a12d245a3b7b1bb1e99c5d0b1/FLAG582b3d674 [2024-12-02 11:41:14,033 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:41:14,033 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/sv-benchmarks/c/floats-nonlinear/bound-grocery.c [2024-12-02 11:41:14,038 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/data/a14feba36/1fd94b3a12d245a3b7b1bb1e99c5d0b1/FLAG582b3d674 [2024-12-02 11:41:14,051 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/data/a14feba36/1fd94b3a12d245a3b7b1bb1e99c5d0b1 [2024-12-02 11:41:14,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:41:14,054 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:41:14,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:41:14,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:41:14,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:41:14,059 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,060 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ee2250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14, skipping insertion in model container [2024-12-02 11:41:14,060 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,070 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:41:14,172 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_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/sv-benchmarks/c/floats-nonlinear/bound-grocery.c[616,629] [2024-12-02 11:41:14,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:41:14,195 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:41:14,204 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_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/sv-benchmarks/c/floats-nonlinear/bound-grocery.c[616,629] [2024-12-02 11:41:14,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:41:14,222 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:41:14,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14 WrapperNode [2024-12-02 11:41:14,223 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:41:14,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:41:14,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:41:14,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:41:14,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,234 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,249 INFO L138 Inliner]: procedures = 15, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2024-12-02 11:41:14,250 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:41:14,250 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:41:14,250 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:41:14,251 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:41:14,257 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,259 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,269 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:41:14,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,273 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,274 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,276 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,279 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:41:14,280 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:41:14,280 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:41:14,280 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:41:14,281 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:41:14,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:41:14,307 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:41:14,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:41:14,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:41:14,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:41:14,331 INFO L130 BoogieDeclarations]: Found specification of procedure check_domain [2024-12-02 11:41:14,331 INFO L138 BoogieDeclarations]: Found implementation of procedure check_domain [2024-12-02 11:41:14,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:41:14,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:41:14,381 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:41:14,383 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:41:14,507 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-12-02 11:41:14,507 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:41:14,514 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:41:14,514 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 11:41:14,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:41:14 BoogieIcfgContainer [2024-12-02 11:41:14,515 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:41:14,517 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:41:14,517 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:41:14,522 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:41:14,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:41:14" (1/3) ... [2024-12-02 11:41:14,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42270d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:41:14, skipping insertion in model container [2024-12-02 11:41:14,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (2/3) ... [2024-12-02 11:41:14,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42270d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:41:14, skipping insertion in model container [2024-12-02 11:41:14,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:41:14" (3/3) ... [2024-12-02 11:41:14,524 INFO L128 eAbstractionObserver]: Analyzing ICFG bound-grocery.c [2024-12-02 11:41:14,538 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:41:14,540 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bound-grocery.c that has 2 procedures, 28 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 11:41:14,581 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:41:14,592 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;@658b00d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:41:14,592 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:41:14,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 22 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 11:41:14,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-02 11:41:14,600 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:14,601 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:41:14,601 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:14,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:14,605 INFO L85 PathProgramCache]: Analyzing trace with hash -36567605, now seen corresponding path program 1 times [2024-12-02 11:41:14,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:14,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851936840] [2024-12-02 11:41:14,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:14,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:14,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:41:14,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:14,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851936840] [2024-12-02 11:41:14,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851936840] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:14,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:14,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:41:14,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221712986] [2024-12-02 11:41:14,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:14,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:41:14,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:14,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:41:14,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:41:14,874 INFO L87 Difference]: Start difference. First operand has 28 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 22 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:41:14,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:14,921 INFO L93 Difference]: Finished difference Result 53 states and 70 transitions. [2024-12-02 11:41:14,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:41:14,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-12-02 11:41:14,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:14,927 INFO L225 Difference]: With dead ends: 53 [2024-12-02 11:41:14,928 INFO L226 Difference]: Without dead ends: 28 [2024-12-02 11:41:14,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:41:14,932 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:14,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:14,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-12-02 11:41:14,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-12-02 11:41:14,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 11:41:14,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2024-12-02 11:41:14,960 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 17 [2024-12-02 11:41:14,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:14,960 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2024-12-02 11:41:14,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:41:14,960 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2024-12-02 11:41:14,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-02 11:41:14,962 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:14,962 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:41:14,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:41:14,962 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:14,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:14,963 INFO L85 PathProgramCache]: Analyzing trace with hash -329970612, now seen corresponding path program 1 times [2024-12-02 11:41:14,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:14,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749376380] [2024-12-02 11:41:14,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:14,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:15,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:41:15,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:15,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749376380] [2024-12-02 11:41:15,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749376380] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:15,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:15,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:41:15,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691250783] [2024-12-02 11:41:15,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:15,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:41:15,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:15,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:41:15,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:41:15,010 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:41:15,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:15,026 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2024-12-02 11:41:15,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:41:15,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-12-02 11:41:15,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:15,027 INFO L225 Difference]: With dead ends: 33 [2024-12-02 11:41:15,027 INFO L226 Difference]: Without dead ends: 29 [2024-12-02 11:41:15,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:41:15,028 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:15,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:15,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-12-02 11:41:15,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-12-02 11:41:15,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 11:41:15,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2024-12-02 11:41:15,034 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 17 [2024-12-02 11:41:15,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:15,034 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2024-12-02 11:41:15,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:41:15,035 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2024-12-02 11:41:15,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-02 11:41:15,035 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:15,035 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:41:15,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:41:15,036 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:15,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:15,036 INFO L85 PathProgramCache]: Analyzing trace with hash -329911030, now seen corresponding path program 1 times [2024-12-02 11:41:15,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:15,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953672907] [2024-12-02 11:41:15,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:15,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:15,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:41:15,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:15,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953672907] [2024-12-02 11:41:15,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953672907] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:15,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:15,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:41:15,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150145047] [2024-12-02 11:41:15,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:15,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:41:15,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:15,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:41:15,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:41:15,129 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:41:15,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:15,145 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2024-12-02 11:41:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:41:15,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-12-02 11:41:15,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:15,146 INFO L225 Difference]: With dead ends: 33 [2024-12-02 11:41:15,146 INFO L226 Difference]: Without dead ends: 28 [2024-12-02 11:41:15,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:41:15,147 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:15,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:15,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-12-02 11:41:15,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-12-02 11:41:15,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 11:41:15,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2024-12-02 11:41:15,161 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 17 [2024-12-02 11:41:15,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:15,161 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2024-12-02 11:41:15,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:41:15,161 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2024-12-02 11:41:15,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-02 11:41:15,162 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:15,162 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:41:15,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:41:15,162 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:15,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:15,163 INFO L85 PathProgramCache]: Analyzing trace with hash -752866454, now seen corresponding path program 1 times [2024-12-02 11:41:15,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:15,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870513042] [2024-12-02 11:41:15,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:15,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:15,221 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 11:41:15,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:15,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870513042] [2024-12-02 11:41:15,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870513042] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:15,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:15,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:41:15,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109261108] [2024-12-02 11:41:15,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:15,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:41:15,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:15,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:41:15,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:41:15,223 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 11:41:15,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:15,243 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2024-12-02 11:41:15,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:41:15,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2024-12-02 11:41:15,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:15,244 INFO L225 Difference]: With dead ends: 43 [2024-12-02 11:41:15,244 INFO L226 Difference]: Without dead ends: 28 [2024-12-02 11:41:15,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:41:15,245 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:15,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:15,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-12-02 11:41:15,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-12-02 11:41:15,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 11:41:15,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2024-12-02 11:41:15,250 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 23 [2024-12-02 11:41:15,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:15,251 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2024-12-02 11:41:15,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 11:41:15,251 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2024-12-02 11:41:15,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-02 11:41:15,251 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:15,252 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:41:15,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:41:15,252 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:15,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:15,252 INFO L85 PathProgramCache]: Analyzing trace with hash 475007939, now seen corresponding path program 1 times [2024-12-02 11:41:15,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:15,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128707534] [2024-12-02 11:41:15,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:15,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:15,309 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 11:41:15,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:15,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128707534] [2024-12-02 11:41:15,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128707534] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:15,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:15,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:41:15,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452510902] [2024-12-02 11:41:15,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:15,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:41:15,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:15,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:41:15,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:41:15,311 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 11:41:15,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:15,335 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions. [2024-12-02 11:41:15,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:41:15,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2024-12-02 11:41:15,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:15,336 INFO L225 Difference]: With dead ends: 47 [2024-12-02 11:41:15,336 INFO L226 Difference]: Without dead ends: 28 [2024-12-02 11:41:15,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:41:15,337 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:15,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:15,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-12-02 11:41:15,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2024-12-02 11:41:15,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 11:41:15,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2024-12-02 11:41:15,341 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 29 [2024-12-02 11:41:15,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:15,341 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2024-12-02 11:41:15,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 11:41:15,342 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2024-12-02 11:41:15,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-12-02 11:41:15,342 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:15,342 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:41:15,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:41:15,343 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:15,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:15,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1979909910, now seen corresponding path program 1 times [2024-12-02 11:41:15,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:15,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362378389] [2024-12-02 11:41:15,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:15,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:41:15,362 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:41:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:41:15,389 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 11:41:15,390 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:41:15,390 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 11:41:15,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:41:15,395 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-12-02 11:41:15,416 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 11:41:15,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:41:15 BoogieIcfgContainer [2024-12-02 11:41:15,419 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 11:41:15,419 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:41:15,419 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:41:15,419 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:41:15,420 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:41:14" (3/4) ... [2024-12-02 11:41:15,422 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 11:41:15,423 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:41:15,424 INFO L158 Benchmark]: Toolchain (without parser) took 1369.78ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 91.8MB in the end (delta: 23.9MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-12-02 11:41:15,424 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 82.8MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:41:15,424 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.75ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 104.9MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:41:15,425 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.35ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 103.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:41:15,425 INFO L158 Benchmark]: Boogie Preprocessor took 29.18ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 102.2MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:41:15,425 INFO L158 Benchmark]: RCFGBuilder took 234.64ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 90.5MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:41:15,425 INFO L158 Benchmark]: TraceAbstraction took 901.60ms. Allocated memory is still 142.6MB. Free memory was 89.7MB in the beginning and 91.8MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:41:15,426 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 91.8MB in the end (delta: 15.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:41:15,427 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 82.8MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 167.75ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 104.9MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.35ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 103.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.18ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 102.2MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 234.64ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 90.5MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 901.60ms. Allocated memory is still 142.6MB. Free memory was 89.7MB in the beginning and 91.8MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 91.8MB in the end (delta: 15.8kB). 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: 18]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 26, overapproximation of someBinaryDOUBLEComparisonOperation at line 33. Possible FailurePath: [L40] double x, y, z, w; [L41] x = __VERIFIER_nondet_double() [L42] y = __VERIFIER_nondet_double() [L43] z = __VERIFIER_nondet_double() [L44] w = __VERIFIER_nondet_double() [L45] CALL, EXPR solve(x, y, z, w) [L30] CALL, EXPR check_domain(item1) VAL [\old(x)=54] [L26] COND TRUE x >= 0.0 && x <= 711.0 [L26] return 1; VAL [\old(x)=54, \result=1] [L30] RET, EXPR check_domain(item1) VAL [item1=54, item2=55, item3=56, item4=53] [L30] EXPR check_domain(item1) && check_domain(item2) VAL [item1=54, item2=55, item3=56, item4=53] [L30] CALL, EXPR check_domain(item2) VAL [\old(x)=55] [L26] COND TRUE x >= 0.0 && x <= 711.0 [L26] return 1; VAL [\old(x)=55, \result=1] [L30] RET, EXPR check_domain(item2) VAL [item1=54, item2=55, item3=56, item4=53] [L30] EXPR check_domain(item1) && check_domain(item2) VAL [item1=54, item2=55, item3=56, item4=53] [L30] EXPR check_domain(item1) && check_domain(item2) && check_domain(item3) VAL [item1=54, item2=55, item3=56, item4=53] [L30] CALL, EXPR check_domain(item3) VAL [\old(x)=56] [L26] COND TRUE x >= 0.0 && x <= 711.0 [L26] return 1; VAL [\old(x)=56, \result=1] [L30] RET, EXPR check_domain(item3) VAL [item1=54, item2=55, item3=56, item4=53] [L30] EXPR check_domain(item1) && check_domain(item2) && check_domain(item3) VAL [item1=54, item2=55, item3=56, item4=53] [L30-L31] EXPR check_domain(item1) && check_domain(item2) && check_domain(item3) && check_domain(item4) VAL [item1=54, item2=55, item3=56, item4=53] [L31] CALL, EXPR check_domain(item4) VAL [\old(x)=53] [L26] COND TRUE x >= 0.0 && x <= 711.0 [L26] return 1; VAL [\old(x)=53, \result=1] [L31] RET, EXPR check_domain(item4) VAL [item1=54, item2=55, item3=56, item4=53] [L30-L31] EXPR check_domain(item1) && check_domain(item2) && check_domain(item3) && check_domain(item4) VAL [item1=54, item2=55, item3=56, item4=53] [L30-L33] COND TRUE check_domain(item1) && check_domain(item2) && check_domain(item3) && check_domain(item4) && item1 + item2 + item3 + item4 == 711.0 && (item1 + 0.0) * item2 * item3 * item4 == 711.0 * 100 * 100 * 100 && item1 <= item2 && item2 <= item3 && item3 <= item4 [L34] return 1; VAL [\result=1, item1=54, item2=55, item3=56, item4=53] [L45] RET, EXPR solve(x, y, z, w) [L45] CALL __VERIFIER_assert(!solve(x, y, z, w)) [L16] COND TRUE !(cond) [L18] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 398 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 250 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 63 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 148 mSDtfsCounter, 63 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, InterpolantAutomatonStates: 20, 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, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 11:41:15,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-nonlinear/bound-grocery.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3d98f9912f2edd7d39da105bd0d4d0aa0050c2422dc467789771f1f7cd0212f6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:41:17,368 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:41:17,450 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 11:41:17,457 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:41:17,457 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:41:17,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:41:17,479 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:41:17,479 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:41:17,480 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:41:17,480 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:41:17,480 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:41:17,480 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:41:17,480 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:41:17,480 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:41:17,481 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:41:17,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:41:17,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:41:17,481 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:41:17,481 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:41:17,481 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:41:17,481 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:41:17,481 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:41:17,481 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:41:17,481 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 11:41:17,482 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 11:41:17,482 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 11:41:17,482 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:41:17,482 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:41:17,482 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:41:17,482 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:41:17,482 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:41:17,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:41:17,482 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:41:17,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:41:17,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:41:17,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:41:17,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:41:17,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:41:17,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:41:17,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:41:17,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:41:17,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:41:17,483 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:41:17,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:41:17,484 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 11:41:17,484 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 11:41:17,484 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:41:17,484 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:41:17,484 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:41:17,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:41:17,484 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_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d98f9912f2edd7d39da105bd0d4d0aa0050c2422dc467789771f1f7cd0212f6 [2024-12-02 11:41:17,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:41:17,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:41:17,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:41:17,727 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:41:17,727 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:41:17,728 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/floats-nonlinear/bound-grocery.c [2024-12-02 11:41:20,331 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/data/42eb2e7fd/e2c2f6c739404255addf95edd6a248b7/FLAGb9cd0f08a [2024-12-02 11:41:20,561 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:41:20,562 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/sv-benchmarks/c/floats-nonlinear/bound-grocery.c [2024-12-02 11:41:20,569 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/data/42eb2e7fd/e2c2f6c739404255addf95edd6a248b7/FLAGb9cd0f08a [2024-12-02 11:41:20,914 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/data/42eb2e7fd/e2c2f6c739404255addf95edd6a248b7 [2024-12-02 11:41:20,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:41:20,917 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:41:20,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:41:20,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:41:20,922 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:41:20,922 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:41:20" (1/1) ... [2024-12-02 11:41:20,923 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b184cd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:20, skipping insertion in model container [2024-12-02 11:41:20,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:41:20" (1/1) ... [2024-12-02 11:41:20,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:41:21,040 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_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/sv-benchmarks/c/floats-nonlinear/bound-grocery.c[616,629] [2024-12-02 11:41:21,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:41:21,065 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:41:21,073 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_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/sv-benchmarks/c/floats-nonlinear/bound-grocery.c[616,629] [2024-12-02 11:41:21,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:41:21,092 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:41:21,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:21 WrapperNode [2024-12-02 11:41:21,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:41:21,093 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:41:21,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:41:21,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:41:21,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:21" (1/1) ... [2024-12-02 11:41:21,105 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:21" (1/1) ... [2024-12-02 11:41:21,120 INFO L138 Inliner]: procedures = 16, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2024-12-02 11:41:21,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:41:21,121 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:41:21,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:41:21,121 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:41:21,127 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:21" (1/1) ... [2024-12-02 11:41:21,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:21" (1/1) ... [2024-12-02 11:41:21,129 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:21" (1/1) ... [2024-12-02 11:41:21,140 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:41:21,141 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:21" (1/1) ... [2024-12-02 11:41:21,141 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:21" (1/1) ... [2024-12-02 11:41:21,147 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:21" (1/1) ... [2024-12-02 11:41:21,148 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:21" (1/1) ... [2024-12-02 11:41:21,150 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:21" (1/1) ... [2024-12-02 11:41:21,151 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:21" (1/1) ... [2024-12-02 11:41:21,152 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:21" (1/1) ... [2024-12-02 11:41:21,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:41:21,155 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:41:21,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:41:21,155 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:41:21,156 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:21" (1/1) ... [2024-12-02 11:41:21,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:41:21,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:41:21,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:41:21,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:41:21,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:41:21,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 11:41:21,211 INFO L130 BoogieDeclarations]: Found specification of procedure check_domain [2024-12-02 11:41:21,211 INFO L138 BoogieDeclarations]: Found implementation of procedure check_domain [2024-12-02 11:41:21,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:41:21,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:41:21,273 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:41:21,275 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:41:29,658 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-12-02 11:41:29,659 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:41:29,669 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:41:29,669 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 11:41:29,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:41:29 BoogieIcfgContainer [2024-12-02 11:41:29,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:41:29,672 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:41:29,673 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:41:29,677 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:41:29,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:41:20" (1/3) ... [2024-12-02 11:41:29,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2687d8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:41:29, skipping insertion in model container [2024-12-02 11:41:29,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:21" (2/3) ... [2024-12-02 11:41:29,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2687d8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:41:29, skipping insertion in model container [2024-12-02 11:41:29,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:41:29" (3/3) ... [2024-12-02 11:41:29,680 INFO L128 eAbstractionObserver]: Analyzing ICFG bound-grocery.c [2024-12-02 11:41:29,692 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:41:29,694 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bound-grocery.c that has 2 procedures, 28 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 11:41:29,734 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:41:29,743 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;@70d5153d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:41:29,743 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:41:29,747 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 22 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 11:41:29,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-02 11:41:29,753 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:29,753 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:41:29,754 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:29,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:29,759 INFO L85 PathProgramCache]: Analyzing trace with hash -36567605, now seen corresponding path program 1 times [2024-12-02 11:41:29,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:29,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501339697] [2024-12-02 11:41:29,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:29,769 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:41:29,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:29,771 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:41:29,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 11:41:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:30,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:41:30,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:30,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:41:30,847 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:41:30,848 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:30,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501339697] [2024-12-02 11:41:30,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501339697] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:30,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:30,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:41:30,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901195401] [2024-12-02 11:41:30,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:30,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:41:30,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:30,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:41:30,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:41:30,879 INFO L87 Difference]: Start difference. First operand has 28 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 22 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:41:35,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:41:39,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:41:43,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:41:47,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:41:48,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:48,076 INFO L93 Difference]: Finished difference Result 53 states and 70 transitions. [2024-12-02 11:41:48,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:41:48,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-12-02 11:41:48,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:48,085 INFO L225 Difference]: With dead ends: 53 [2024-12-02 11:41:48,085 INFO L226 Difference]: Without dead ends: 28 [2024-12-02 11:41:48,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:41:48,090 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:48,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 4 Unknown, 0 Unchecked, 17.2s Time] [2024-12-02 11:41:48,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-12-02 11:41:48,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-12-02 11:41:48,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 11:41:48,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2024-12-02 11:41:48,126 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 17 [2024-12-02 11:41:48,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:48,126 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2024-12-02 11:41:48,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:41:48,127 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2024-12-02 11:41:48,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-02 11:41:48,128 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:48,128 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:41:48,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 11:41:48,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:41:48,329 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:48,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:48,330 INFO L85 PathProgramCache]: Analyzing trace with hash -329970612, now seen corresponding path program 1 times [2024-12-02 11:41:48,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:48,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141065552] [2024-12-02 11:41:48,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:48,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:41:48,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:48,332 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:41:48,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 11:41:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:49,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 11:41:49,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:49,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:41:49,629 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:41:49,629 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:49,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141065552] [2024-12-02 11:41:49,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141065552] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:49,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:49,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:41:49,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811585970] [2024-12-02 11:41:49,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:49,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:41:49,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:49,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:41:49,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:41:49,632 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:41:54,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:41:58,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:42:02,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:42:06,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:42:10,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:42:14,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:42:18,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:42:22,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:42:26,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:42:30,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:42:35,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:42:39,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:42:43,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:42:47,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:42:47,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:47,224 INFO L93 Difference]: Finished difference Result 54 states and 74 transitions. [2024-12-02 11:42:47,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:42:47,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-12-02 11:42:47,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:47,317 INFO L225 Difference]: With dead ends: 54 [2024-12-02 11:42:47,317 INFO L226 Difference]: Without dead ends: 33 [2024-12-02 11:42:47,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:42:47,318 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 5 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:47,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 49 Invalid, 14 Unknown, 0 Unchecked, 57.6s Time] [2024-12-02 11:42:47,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-12-02 11:42:47,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-12-02 11:42:47,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 26 states have internal predecessors, (30), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 11:42:47,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2024-12-02 11:42:47,326 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 17 [2024-12-02 11:42:47,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:47,327 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2024-12-02 11:42:47,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:42:47,327 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2024-12-02 11:42:47,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-02 11:42:47,328 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:47,328 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:42:47,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 11:42:47,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:42:47,529 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:47,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:47,529 INFO L85 PathProgramCache]: Analyzing trace with hash -329911030, now seen corresponding path program 1 times [2024-12-02 11:42:47,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:47,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453254497] [2024-12-02 11:42:47,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:47,530 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:42:47,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:47,531 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:42:47,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 11:42:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:48,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 11:42:48,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:48,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:42:48,433 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:48,433 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:48,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453254497] [2024-12-02 11:42:48,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453254497] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:48,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:48,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:42:48,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215935993] [2024-12-02 11:42:48,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:48,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:42:48,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:48,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:42:48,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:42:48,435 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:42:52,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:42:52,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:52,807 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2024-12-02 11:42:52,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:42:52,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-12-02 11:42:52,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:52,809 INFO L225 Difference]: With dead ends: 37 [2024-12-02 11:42:52,809 INFO L226 Difference]: Without dead ends: 26 [2024-12-02 11:42:52,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:42:52,810 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:52,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2024-12-02 11:42:52,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-12-02 11:42:52,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-12-02 11:42:52,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 20 states have internal predecessors, (20), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-12-02 11:42:52,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2024-12-02 11:42:52,814 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 17 [2024-12-02 11:42:52,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:52,815 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2024-12-02 11:42:52,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:42:52,815 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2024-12-02 11:42:52,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-12-02 11:42:52,815 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:52,816 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:42:52,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 11:42:53,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:42:53,016 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:53,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:53,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1979909910, now seen corresponding path program 1 times [2024-12-02 11:42:53,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:53,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479573649] [2024-12-02 11:42:53,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:53,017 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:42:53,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:53,019 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:42:53,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 11:43:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:43:41,094 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:44:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:44:58,360 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-12-02 11:44:58,361 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:44:58,361 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 11:44:58,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-12-02 11:44:58,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:44:58,565 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-12-02 11:44:58,595 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 11:44:58,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:44:58 BoogieIcfgContainer [2024-12-02 11:44:58,597 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 11:44:58,598 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:44:58,598 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:44:58,598 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:44:58,599 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:41:29" (3/4) ... [2024-12-02 11:44:58,599 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-02 11:44:58,634 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 18. [2024-12-02 11:44:58,679 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 11:44:58,680 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 11:44:58,680 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:44:58,680 INFO L158 Benchmark]: Toolchain (without parser) took 217763.03ms. Allocated memory is still 92.3MB. Free memory was 69.8MB in the beginning and 62.2MB in the end (delta: 7.6MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2024-12-02 11:44:58,681 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:44:58,681 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.16ms. Allocated memory is still 92.3MB. Free memory was 69.6MB in the beginning and 58.1MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:44:58,681 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.19ms. Allocated memory is still 92.3MB. Free memory was 58.1MB in the beginning and 56.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:44:58,681 INFO L158 Benchmark]: Boogie Preprocessor took 33.82ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 55.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:44:58,682 INFO L158 Benchmark]: RCFGBuilder took 8514.91ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 43.6MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:44:58,682 INFO L158 Benchmark]: TraceAbstraction took 208925.14ms. Allocated memory is still 92.3MB. Free memory was 43.1MB in the beginning and 67.9MB in the end (delta: -24.8MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2024-12-02 11:44:58,682 INFO L158 Benchmark]: Witness Printer took 81.84ms. Allocated memory is still 92.3MB. Free memory was 67.3MB in the beginning and 62.2MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:44:58,684 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 174.16ms. Allocated memory is still 92.3MB. Free memory was 69.6MB in the beginning and 58.1MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.19ms. Allocated memory is still 92.3MB. Free memory was 58.1MB in the beginning and 56.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.82ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 55.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 8514.91ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 43.6MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 208925.14ms. Allocated memory is still 92.3MB. Free memory was 43.1MB in the beginning and 67.9MB in the end (delta: -24.8MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * Witness Printer took 81.84ms. Allocated memory is still 92.3MB. Free memory was 67.3MB in the beginning and 62.2MB in the end (delta: 5.1MB). 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 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L40] double x, y, z, w; [L41] x = __VERIFIER_nondet_double() [L42] y = __VERIFIER_nondet_double() [L43] z = __VERIFIER_nondet_double() [L44] w = __VERIFIER_nondet_double() [L45] CALL, EXPR solve(x, y, z, w) [L30] CALL, EXPR check_domain(item1) VAL [\old(x)=97.96355358841333] [L26] COND TRUE x >= 0.0 && x <= 711.0 [L26] return 1; VAL [\old(x)=97.96355358841333, \result=1] [L30] RET, EXPR check_domain(item1) VAL [item1=97.96355358841333, item2=127.28104205865783, item3=198.51868545987764, item4=287.23671889305115] [L30] EXPR check_domain(item1) && check_domain(item2) VAL [item1=97.96355358841333, item2=127.28104205865783, item3=198.51868545987764, item4=287.23671889305115] [L30] CALL, EXPR check_domain(item2) VAL [\old(x)=127.28104205865783] [L26] COND TRUE x >= 0.0 && x <= 711.0 [L26] return 1; VAL [\old(x)=127.28104205865783, \result=1] [L30] RET, EXPR check_domain(item2) VAL [item1=97.96355358841333, item2=127.28104205865783, item3=198.51868545987764, item4=287.23671889305115] [L30] EXPR check_domain(item1) && check_domain(item2) VAL [item1=97.96355358841333, item2=127.28104205865783, item3=198.51868545987764, item4=287.23671889305115] [L30] EXPR check_domain(item1) && check_domain(item2) && check_domain(item3) VAL [item1=97.96355358841333, item2=127.28104205865783, item3=198.51868545987764, item4=287.23671889305115] [L30] CALL, EXPR check_domain(item3) VAL [\old(x)=198.51868545987764] [L26] COND TRUE x >= 0.0 && x <= 711.0 [L26] return 1; VAL [\old(x)=198.51868545987764, \result=1] [L30] RET, EXPR check_domain(item3) VAL [item1=97.96355358841333, item2=127.28104205865783, item3=198.51868545987764, item4=287.23671889305115] [L30] EXPR check_domain(item1) && check_domain(item2) && check_domain(item3) VAL [item1=97.96355358841333, item2=127.28104205865783, item3=198.51868545987764, item4=287.23671889305115] [L30-L31] EXPR check_domain(item1) && check_domain(item2) && check_domain(item3) && check_domain(item4) VAL [item1=97.96355358841333, item2=127.28104205865783, item3=198.51868545987764, item4=287.23671889305115] [L31] CALL, EXPR check_domain(item4) VAL [\old(x)=287.23671889305115] [L26] COND TRUE x >= 0.0 && x <= 711.0 [L26] return 1; VAL [\old(x)=287.23671889305115, \result=1] [L31] RET, EXPR check_domain(item4) VAL [item1=97.96355358841333, item2=127.28104205865783, item3=198.51868545987764, item4=287.23671889305115] [L30-L31] EXPR check_domain(item1) && check_domain(item2) && check_domain(item3) && check_domain(item4) VAL [item1=97.96355358841333, item2=127.28104205865783, item3=198.51868545987764, item4=287.23671889305115] [L30-L33] COND TRUE check_domain(item1) && check_domain(item2) && check_domain(item3) && check_domain(item4) && item1 + item2 + item3 + item4 == 711.0 && (item1 + 0.0) * item2 * item3 * item4 == 711.0 * 100 * 100 * 100 && item1 <= item2 && item2 <= item3 && item3 <= item4 [L34] return 1; VAL [\result=1] [L45] RET, EXPR solve(x, y, z, w) [L45] CALL __VERIFIER_assert(!solve(x, y, z, w)) [L16] COND TRUE !(cond) [L18] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 208.8s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 79.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 19 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 79.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 363 SdHoareTripleChecker+Invalid, 78.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 269 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 94 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 50.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 SizeOfPredicates, 0 NumberOfNonLiveVariables, 137 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-12-02 11:44:58,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b84b2ee1-9fa9-4226-8d9d-a897593bb9df/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE