./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-22.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 980b1737abc4897cffcf9ffd697bb8a6c2567cb964b43bf5603c43f896e3728c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:36:48,190 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:36:48,242 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:36:48,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:36:48,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:36:48,268 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:36:48,269 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:36:48,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:36:48,269 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:36:48,269 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:36:48,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:36:48,270 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:36:48,270 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:36:48,270 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:36:48,270 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:36:48,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:36:48,270 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:36:48,271 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:36:48,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:36:48,271 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:36:48,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:36:48,271 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:36:48,271 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:36:48,271 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:36:48,271 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:36:48,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:36:48,271 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:36:48,271 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:36:48,271 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:36:48,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:36:48,272 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:36:48,272 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:36:48,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:36:48,272 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:36:48,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:36:48,272 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:36:48,272 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:36:48,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:36:48,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:36:48,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:36:48,273 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:36:48,273 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:36:48,273 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:36:48,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:36:48,273 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:36:48,273 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:36:48,273 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:36:48,273 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:36:48,273 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_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 -> 980b1737abc4897cffcf9ffd697bb8a6c2567cb964b43bf5603c43f896e3728c [2024-12-02 13:36:48,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:36:48,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:36:48,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:36:48,482 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:36:48,482 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:36:48,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-22.i [2024-12-02 13:36:51,152 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/data/95cc985fe/6ab5dab0cf89404883e63e26b9ee9591/FLAGc4e4105dd [2024-12-02 13:36:51,375 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:36:51,376 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-22.i [2024-12-02 13:36:51,382 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/data/95cc985fe/6ab5dab0cf89404883e63e26b9ee9591/FLAGc4e4105dd [2024-12-02 13:36:51,748 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/data/95cc985fe/6ab5dab0cf89404883e63e26b9ee9591 [2024-12-02 13:36:51,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:36:51,752 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:36:51,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:36:51,753 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:36:51,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:36:51,756 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:36:51" (1/1) ... [2024-12-02 13:36:51,757 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2882a17c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:51, skipping insertion in model container [2024-12-02 13:36:51,757 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:36:51" (1/1) ... [2024-12-02 13:36:51,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:36:51,866 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_3bc38fac-1a05-4449-a4a8-d82fd57380bb/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-22.i[915,928] [2024-12-02 13:36:51,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:36:51,896 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:36:51,904 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-22.i[915,928] [2024-12-02 13:36:51,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:36:51,925 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:36:51,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:51 WrapperNode [2024-12-02 13:36:51,925 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:36:51,926 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:36:51,926 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:36:51,926 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:36:51,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:51" (1/1) ... [2024-12-02 13:36:51,936 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:51" (1/1) ... [2024-12-02 13:36:51,950 INFO L138 Inliner]: procedures = 26, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 61 [2024-12-02 13:36:51,950 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:36:51,951 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:36:51,951 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:36:51,951 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:36:51,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:51" (1/1) ... [2024-12-02 13:36:51,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:51" (1/1) ... [2024-12-02 13:36:51,958 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:51" (1/1) ... [2024-12-02 13:36:51,969 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 13:36:51,969 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:51" (1/1) ... [2024-12-02 13:36:51,969 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:51" (1/1) ... [2024-12-02 13:36:51,974 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:51" (1/1) ... [2024-12-02 13:36:51,975 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:51" (1/1) ... [2024-12-02 13:36:51,978 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:51" (1/1) ... [2024-12-02 13:36:51,979 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:51" (1/1) ... [2024-12-02 13:36:51,980 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:51" (1/1) ... [2024-12-02 13:36:51,981 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:36:51,982 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:36:51,982 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:36:51,982 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:36:51,983 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:51" (1/1) ... [2024-12-02 13:36:51,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:36:51,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:36:52,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:36:52,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:36:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:36:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 13:36:52,027 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 13:36:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:36:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:36:52,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:36:52,074 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:36:52,076 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:36:52,188 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-12-02 13:36:52,188 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:36:52,196 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:36:52,196 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:36:52,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:36:52 BoogieIcfgContainer [2024-12-02 13:36:52,196 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:36:52,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:36:52,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:36:52,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:36:52,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:36:51" (1/3) ... [2024-12-02 13:36:52,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f23cbb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:36:52, skipping insertion in model container [2024-12-02 13:36:52,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:51" (2/3) ... [2024-12-02 13:36:52,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f23cbb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:36:52, skipping insertion in model container [2024-12-02 13:36:52,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:36:52" (3/3) ... [2024-12-02 13:36:52,204 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-22.i [2024-12-02 13:36:52,215 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:36:52,216 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-22.i that has 2 procedures, 31 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:36:52,256 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:36:52,266 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;@f905fc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:36:52,266 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:36:52,269 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 13:36:52,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 13:36:52,274 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:36:52,275 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:36:52,275 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:36:52,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:36:52,279 INFO L85 PathProgramCache]: Analyzing trace with hash -706627639, now seen corresponding path program 1 times [2024-12-02 13:36:52,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:36:52,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194077453] [2024-12-02 13:36:52,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:36:52,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:36:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:36:52,412 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 13:36:52,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:36:52,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194077453] [2024-12-02 13:36:52,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194077453] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:36:52,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139680854] [2024-12-02 13:36:52,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:36:52,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:36:52,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:36:52,419 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:36:52,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:36:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:36:52,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 13:36:52,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:36:52,517 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 13:36:52,517 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:36:52,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139680854] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:36:52,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:36:52,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 13:36:52,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636869855] [2024-12-02 13:36:52,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:36:52,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:36:52,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:36:52,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:36:52,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:36:52,543 INFO L87 Difference]: Start difference. First operand has 31 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 13:36:52,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:36:52,555 INFO L93 Difference]: Finished difference Result 55 states and 81 transitions. [2024-12-02 13:36:52,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:36:52,557 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2024-12-02 13:36:52,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:36:52,560 INFO L225 Difference]: With dead ends: 55 [2024-12-02 13:36:52,560 INFO L226 Difference]: Without dead ends: 27 [2024-12-02 13:36:52,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:36:52,564 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:36:52,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:36:52,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-12-02 13:36:52,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-12-02 13:36:52,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 13:36:52,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2024-12-02 13:36:52,589 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 40 [2024-12-02 13:36:52,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:36:52,590 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2024-12-02 13:36:52,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 13:36:52,590 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-12-02 13:36:52,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 13:36:52,591 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:36:52,591 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:36:52,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:36:52,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:36:52,792 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:36:52,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:36:52,793 INFO L85 PathProgramCache]: Analyzing trace with hash -51026809, now seen corresponding path program 1 times [2024-12-02 13:36:52,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:36:52,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210947720] [2024-12-02 13:36:52,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:36:52,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:36:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:36:52,841 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:36:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:36:52,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 13:36:52,889 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 13:36:52,890 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 13:36:52,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:36:52,894 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 13:36:52,912 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:36:52,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:36:52 BoogieIcfgContainer [2024-12-02 13:36:52,915 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:36:52,915 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:36:52,915 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:36:52,915 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:36:52,916 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:36:52" (3/4) ... [2024-12-02 13:36:52,917 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 13:36:52,918 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:36:52,919 INFO L158 Benchmark]: Toolchain (without parser) took 1166.86ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 88.5MB in the end (delta: 4.9MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2024-12-02 13:36:52,919 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:36:52,919 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.99ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 81.7MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:36:52,919 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.13ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:36:52,920 INFO L158 Benchmark]: Boogie Preprocessor took 30.78ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 79.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:36:52,920 INFO L158 Benchmark]: RCFGBuilder took 214.41ms. Allocated memory is still 117.4MB. Free memory was 78.7MB in the beginning and 68.1MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:36:52,920 INFO L158 Benchmark]: TraceAbstraction took 716.51ms. Allocated memory is still 117.4MB. Free memory was 67.6MB in the beginning and 88.5MB in the end (delta: -20.9MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2024-12-02 13:36:52,921 INFO L158 Benchmark]: Witness Printer took 2.86ms. Allocated memory is still 117.4MB. Free memory was 88.5MB in the beginning and 88.5MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:36:52,922 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 172.99ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 81.7MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.13ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.78ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 79.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 214.41ms. Allocated memory is still 117.4MB. Free memory was 78.7MB in the beginning and 68.1MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 716.51ms. Allocated memory is still 117.4MB. Free memory was 67.6MB in the beginning and 88.5MB in the end (delta: -20.9MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Witness Printer took 2.86ms. Allocated memory is still 117.4MB. Free memory was 88.5MB in the beginning and 88.5MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 54, overapproximation of someBinaryFLOATComparisonOperation at line 49, overapproximation of someBinaryDOUBLEComparisonOperation at line 36, overapproximation of someBinaryDOUBLEComparisonOperation at line 42, overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of someBinaryDOUBLEComparisonOperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 31. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] double var_1_2 = 999999.2; [L24] unsigned char var_1_3 = 0; [L25] float var_1_4 = 100.52; [L26] double var_1_5 = 31.2; [L27] float var_1_6 = 5.8; VAL [isInitial=0, var_1_1=0, var_1_2=4999996/5, var_1_3=0, var_1_4=2513/25, var_1_5=156/5, var_1_6=29/5] [L58] isInitial = 1 [L59] FCALL initially() [L61] FCALL updateLastVariables() [L62] CALL updateVariables() [L41] var_1_2 = __VERIFIER_nondet_double() [L42] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=0, var_1_4=2513/25, var_1_5=156/5, var_1_6=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=0, var_1_4=2513/25, var_1_5=156/5, var_1_6=29/5] [L42] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=0, var_1_3=0, var_1_4=2513/25, var_1_5=156/5, var_1_6=29/5] [L43] var_1_3 = __VERIFIER_nondet_uchar() [L44] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_4=2513/25, var_1_5=156/5, var_1_6=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_4=2513/25, var_1_5=156/5, var_1_6=29/5] [L44] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_1=0, var_1_4=2513/25, var_1_5=156/5, var_1_6=29/5] [L45] CALL assume_abort_if_not(var_1_3 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=0, var_1_4=2513/25, var_1_5=156/5, var_1_6=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=0, var_1_4=2513/25, var_1_5=156/5, var_1_6=29/5] [L45] RET assume_abort_if_not(var_1_3 <= 0) VAL [isInitial=1, var_1_1=0, var_1_3=0, var_1_4=2513/25, var_1_5=156/5, var_1_6=29/5] [L46] var_1_5 = __VERIFIER_nondet_double() [L47] CALL assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=0, var_1_4=2513/25, var_1_6=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=0, var_1_4=2513/25, var_1_6=29/5] [L47] RET assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=0, var_1_3=0, var_1_4=2513/25, var_1_6=29/5] [L48] var_1_6 = __VERIFIER_nondet_float() [L49] CALL assume_abort_if_not((var_1_6 >= -922337.2036854765600e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=0, var_1_4=2513/25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=0, var_1_4=2513/25] [L49] RET assume_abort_if_not((var_1_6 >= -922337.2036854765600e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=0, var_1_3=0, var_1_4=2513/25] [L62] RET updateVariables() [L63] CALL step() [L31] COND FALSE !(var_1_2 <= var_1_5) VAL [isInitial=1, var_1_1=0, var_1_3=0, var_1_4=2513/25] [L36] COND TRUE 1.125 >= var_1_4 [L37] var_1_1 = (! (! var_1_3)) VAL [isInitial=1, var_1_1=0, var_1_3=0, var_1_4=2513/25] [L63] RET step() [L64] CALL, EXPR property() [L54-L55] return ((1.125 >= var_1_4) ? (var_1_1 == ((unsigned char) (! (! var_1_3)))) : 1) && ((var_1_2 <= var_1_5) ? ((! var_1_3) ? (var_1_4 == ((float) var_1_6)) : 1) : 1) ; VAL [\result=0, isInitial=1, var_1_1=0, var_1_3=0, var_1_4=2513/25] [L64] RET, EXPR property() [L64] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=0, var_1_3=0, var_1_4=2513/25] [L19] reach_error() VAL [isInitial=1, var_1_1=0, var_1_3=0, var_1_4=2513/25] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 34 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 0 NumberOfNonLiveVariables, 106 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 72/80 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 13:36:52,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 980b1737abc4897cffcf9ffd697bb8a6c2567cb964b43bf5603c43f896e3728c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:36:54,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:36:55,018 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 13:36:55,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:36:55,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:36:55,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:36:55,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:36:55,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:36:55,051 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:36:55,051 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:36:55,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:36:55,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:36:55,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:36:55,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:36:55,052 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:36:55,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:36:55,052 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:36:55,052 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:36:55,052 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:36:55,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:36:55,052 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:36:55,052 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:36:55,052 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:36:55,052 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 13:36:55,053 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 13:36:55,053 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 13:36:55,053 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:36:55,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:36:55,053 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:36:55,053 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:36:55,053 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:36:55,053 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:36:55,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:36:55,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:36:55,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:36:55,053 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:36:55,054 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:36:55,054 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:36:55,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:36:55,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:36:55,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:36:55,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:36:55,054 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:36:55,054 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:36:55,054 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 13:36:55,054 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 13:36:55,054 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:36:55,054 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:36:55,055 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:36:55,055 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:36:55,055 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_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 -> 980b1737abc4897cffcf9ffd697bb8a6c2567cb964b43bf5603c43f896e3728c [2024-12-02 13:36:55,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:36:55,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:36:55,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:36:55,339 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:36:55,340 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:36:55,341 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-22.i [2024-12-02 13:36:58,104 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/data/4137f9b81/6d7b0dbfa4b1406ebed5407faa505e26/FLAG5fd25d328 [2024-12-02 13:36:58,256 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:36:58,257 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-22.i [2024-12-02 13:36:58,264 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/data/4137f9b81/6d7b0dbfa4b1406ebed5407faa505e26/FLAG5fd25d328 [2024-12-02 13:36:58,278 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/data/4137f9b81/6d7b0dbfa4b1406ebed5407faa505e26 [2024-12-02 13:36:58,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:36:58,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:36:58,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:36:58,283 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:36:58,287 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:36:58,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:36:58" (1/1) ... [2024-12-02 13:36:58,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4abe19da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58, skipping insertion in model container [2024-12-02 13:36:58,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:36:58" (1/1) ... [2024-12-02 13:36:58,302 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:36:58,436 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_3bc38fac-1a05-4449-a4a8-d82fd57380bb/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-22.i[915,928] [2024-12-02 13:36:58,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:36:58,475 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:36:58,486 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_3bc38fac-1a05-4449-a4a8-d82fd57380bb/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-22.i[915,928] [2024-12-02 13:36:58,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:36:58,510 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:36:58,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58 WrapperNode [2024-12-02 13:36:58,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:36:58,512 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:36:58,512 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:36:58,512 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:36:58,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2024-12-02 13:36:58,528 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2024-12-02 13:36:58,545 INFO L138 Inliner]: procedures = 27, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 61 [2024-12-02 13:36:58,545 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:36:58,546 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:36:58,546 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:36:58,546 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:36:58,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2024-12-02 13:36:58,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2024-12-02 13:36:58,557 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2024-12-02 13:36:58,568 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 13:36:58,568 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2024-12-02 13:36:58,568 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2024-12-02 13:36:58,574 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2024-12-02 13:36:58,575 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2024-12-02 13:36:58,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2024-12-02 13:36:58,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2024-12-02 13:36:58,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2024-12-02 13:36:58,582 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:36:58,583 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:36:58,583 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:36:58,583 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:36:58,584 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2024-12-02 13:36:58,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:36:58,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:36:58,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:36:58,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:36:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:36:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 13:36:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 13:36:58,638 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 13:36:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:36:58,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:36:58,702 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:36:58,704 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:36:58,945 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-12-02 13:36:58,945 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:36:58,953 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:36:58,953 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:36:58,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:36:58 BoogieIcfgContainer [2024-12-02 13:36:58,953 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:36:58,955 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:36:58,955 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:36:58,959 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:36:58,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:36:58" (1/3) ... [2024-12-02 13:36:58,960 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a5f591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:36:58, skipping insertion in model container [2024-12-02 13:36:58,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (2/3) ... [2024-12-02 13:36:58,960 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a5f591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:36:58, skipping insertion in model container [2024-12-02 13:36:58,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:36:58" (3/3) ... [2024-12-02 13:36:58,961 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-22.i [2024-12-02 13:36:58,972 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:36:58,973 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-22.i that has 2 procedures, 31 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:36:59,021 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:36:59,031 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;@6c93ebbe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:36:59,032 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:36:59,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 13:36:59,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 13:36:59,042 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:36:59,042 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:36:59,043 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:36:59,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:36:59,047 INFO L85 PathProgramCache]: Analyzing trace with hash -706627639, now seen corresponding path program 1 times [2024-12-02 13:36:59,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:36:59,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501917641] [2024-12-02 13:36:59,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:36:59,054 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 13:36:59,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:36:59,056 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:36:59,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:36:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:36:59,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 13:36:59,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:36:59,240 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 13:36:59,240 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:36:59,240 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:36:59,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501917641] [2024-12-02 13:36:59,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501917641] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:36:59,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:36:59,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:36:59,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855087578] [2024-12-02 13:36:59,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:36:59,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:36:59,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:36:59,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:36:59,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:36:59,268 INFO L87 Difference]: Start difference. First operand has 31 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 13:36:59,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:36:59,286 INFO L93 Difference]: Finished difference Result 55 states and 81 transitions. [2024-12-02 13:36:59,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:36:59,288 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2024-12-02 13:36:59,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:36:59,293 INFO L225 Difference]: With dead ends: 55 [2024-12-02 13:36:59,294 INFO L226 Difference]: Without dead ends: 27 [2024-12-02 13:36:59,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:36:59,300 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:36:59,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:36:59,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-12-02 13:36:59,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-12-02 13:36:59,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 13:36:59,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2024-12-02 13:36:59,331 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 40 [2024-12-02 13:36:59,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:36:59,331 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2024-12-02 13:36:59,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 13:36:59,332 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-12-02 13:36:59,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 13:36:59,333 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:36:59,333 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:36:59,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:36:59,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:36:59,534 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:36:59,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:36:59,535 INFO L85 PathProgramCache]: Analyzing trace with hash -51026809, now seen corresponding path program 1 times [2024-12-02 13:36:59,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:36:59,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070755005] [2024-12-02 13:36:59,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:36:59,536 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 13:36:59,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:36:59,538 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:36:59,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:36:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:36:59,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:36:59,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:37:00,078 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 13:37:00,078 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:37:00,078 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:37:00,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070755005] [2024-12-02 13:37:00,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070755005] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:37:00,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:37:00,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:37:00,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091726786] [2024-12-02 13:37:00,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:37:00,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:37:00,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:37:00,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:37:00,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:37:00,081 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 13:37:00,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:37:00,390 INFO L93 Difference]: Finished difference Result 75 states and 96 transitions. [2024-12-02 13:37:00,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:37:00,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 40 [2024-12-02 13:37:00,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:37:00,393 INFO L225 Difference]: With dead ends: 75 [2024-12-02 13:37:00,393 INFO L226 Difference]: Without dead ends: 51 [2024-12-02 13:37:00,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 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 13:37:00,394 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 9 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:37:00,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 53 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:37:00,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-12-02 13:37:00,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2024-12-02 13:37:00,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 36 states have internal predecessors, (43), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 13:37:00,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2024-12-02 13:37:00,405 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 63 transitions. Word has length 40 [2024-12-02 13:37:00,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:37:00,405 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 63 transitions. [2024-12-02 13:37:00,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 13:37:00,405 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2024-12-02 13:37:00,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 13:37:00,406 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:37:00,406 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:37:00,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:00,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:00,608 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:37:00,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:37:00,609 INFO L85 PathProgramCache]: Analyzing trace with hash -49179767, now seen corresponding path program 1 times [2024-12-02 13:37:00,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:37:00,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963219138] [2024-12-02 13:37:00,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:37:00,611 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 13:37:00,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:37:00,617 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:00,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:37:00,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 13:37:00,845 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:37:01,680 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 13:37:01,680 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:37:01,680 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:37:01,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963219138] [2024-12-02 13:37:01,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963219138] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:37:01,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:37:01,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:37:01,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337753399] [2024-12-02 13:37:01,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:37:01,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:37:01,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:37:01,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:37:01,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:37:01,682 INFO L87 Difference]: Start difference. First operand 49 states and 63 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 13:37:02,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:37:02,336 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions. [2024-12-02 13:37:02,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:37:02,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 40 [2024-12-02 13:37:02,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:37:02,338 INFO L225 Difference]: With dead ends: 60 [2024-12-02 13:37:02,338 INFO L226 Difference]: Without dead ends: 58 [2024-12-02 13:37:02,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:37:02,339 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 16 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:37:02,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 110 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:37:02,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-12-02 13:37:02,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 53. [2024-12-02 13:37:02,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.175) internal successors, (47), 40 states have internal predecessors, (47), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 13:37:02,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2024-12-02 13:37:02,346 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 40 [2024-12-02 13:37:02,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:37:02,347 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2024-12-02 13:37:02,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 13:37:02,347 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2024-12-02 13:37:02,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-12-02 13:37:02,348 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:37:02,348 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:37:02,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:02,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:02,549 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:37:02,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:37:02,549 INFO L85 PathProgramCache]: Analyzing trace with hash -294239510, now seen corresponding path program 1 times [2024-12-02 13:37:02,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:37:02,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008512395] [2024-12-02 13:37:02,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:37:02,550 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 13:37:02,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:37:02,551 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:02,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:37:02,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:37:02,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:37:02,763 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 13:37:02,763 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:37:02,881 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 13:37:02,881 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:37:02,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008512395] [2024-12-02 13:37:02,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008512395] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:37:02,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:37:02,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2024-12-02 13:37:02,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270074663] [2024-12-02 13:37:02,882 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:37:02,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:37:02,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:37:02,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:37:02,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:37:02,883 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 13:37:03,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:37:03,145 INFO L93 Difference]: Finished difference Result 111 states and 136 transitions. [2024-12-02 13:37:03,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:37:03,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 41 [2024-12-02 13:37:03,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:37:03,150 INFO L225 Difference]: With dead ends: 111 [2024-12-02 13:37:03,150 INFO L226 Difference]: Without dead ends: 61 [2024-12-02 13:37:03,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:37:03,151 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 31 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:37:03,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 58 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:37:03,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-12-02 13:37:03,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2024-12-02 13:37:03,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 41 states have internal predecessors, (45), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 13:37:03,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2024-12-02 13:37:03,160 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 41 [2024-12-02 13:37:03,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:37:03,160 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2024-12-02 13:37:03,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 13:37:03,160 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2024-12-02 13:37:03,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-12-02 13:37:03,161 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:37:03,161 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:37:03,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-12-02 13:37:03,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:03,362 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:37:03,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:37:03,362 INFO L85 PathProgramCache]: Analyzing trace with hash -353344854, now seen corresponding path program 1 times [2024-12-02 13:37:03,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:37:03,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544359877] [2024-12-02 13:37:03,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:37:03,363 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 13:37:03,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:37:03,365 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:03,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 (6)] Waiting until timeout for monitored process [2024-12-02 13:37:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:37:03,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 13:37:03,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:37:05,604 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 13:37:05,605 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:37:05,605 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:37:05,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544359877] [2024-12-02 13:37:05,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [544359877] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:37:05,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:37:05,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:37:05,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371518156] [2024-12-02 13:37:05,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:37:05,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:37:05,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:37:05,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:37:05,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:37:05,606 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 13:37:07,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:37:07,064 INFO L93 Difference]: Finished difference Result 108 states and 118 transitions. [2024-12-02 13:37:07,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 13:37:07,067 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 41 [2024-12-02 13:37:07,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:37:07,069 INFO L225 Difference]: With dead ends: 108 [2024-12-02 13:37:07,069 INFO L226 Difference]: Without dead ends: 106 [2024-12-02 13:37:07,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:37:07,070 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 54 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:37:07,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 174 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 13:37:07,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-12-02 13:37:07,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 76. [2024-12-02 13:37:07,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 57 states have (on average 1.087719298245614) internal successors, (62), 58 states have internal predecessors, (62), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 13:37:07,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2024-12-02 13:37:07,081 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 41 [2024-12-02 13:37:07,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:37:07,082 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2024-12-02 13:37:07,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 13:37:07,082 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2024-12-02 13:37:07,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-12-02 13:37:07,082 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:37:07,082 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:37:07,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 (6)] Ended with exit code 0 [2024-12-02 13:37:07,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:07,283 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:37:07,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:37:07,283 INFO L85 PathProgramCache]: Analyzing trace with hash -351497812, now seen corresponding path program 1 times [2024-12-02 13:37:07,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:37:07,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642638179] [2024-12-02 13:37:07,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:37:07,284 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 13:37:07,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:37:07,285 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:07,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-12-02 13:37:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:37:07,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 13:37:07,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:37:08,592 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 13:37:08,593 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:37:15,828 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:37:15,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642638179] [2024-12-02 13:37:15,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642638179] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:37:15,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [761501579] [2024-12-02 13:37:15,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:37:15,829 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 13:37:15,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 13:37:15,830 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 13:37:15,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-12-02 13:37:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:37:16,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 13:37:16,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:37:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 13:37:22,239 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:37:22,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [761501579] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:37:22,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:37:22,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 18 [2024-12-02 13:37:22,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523356828] [2024-12-02 13:37:22,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:37:22,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:37:22,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:37:22,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:37:22,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-12-02 13:37:22,240 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 13:37:26,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:37:26,840 INFO L93 Difference]: Finished difference Result 88 states and 96 transitions. [2024-12-02 13:37:26,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:37:26,841 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 41 [2024-12-02 13:37:26,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:37:26,843 INFO L225 Difference]: With dead ends: 88 [2024-12-02 13:37:26,843 INFO L226 Difference]: Without dead ends: 86 [2024-12-02 13:37:26,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=116, Invalid=640, Unknown=0, NotChecked=0, Total=756 [2024-12-02 13:37:26,844 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 34 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:37:26,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 157 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 13:37:26,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-12-02 13:37:26,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 79. [2024-12-02 13:37:26,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 60 states have (on average 1.0833333333333333) internal successors, (65), 61 states have internal predecessors, (65), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 13:37:26,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2024-12-02 13:37:26,853 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 41 [2024-12-02 13:37:26,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:37:26,853 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2024-12-02 13:37:26,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 13:37:26,854 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2024-12-02 13:37:26,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 13:37:26,855 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:37:26,855 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:37:26,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-12-02 13:37:27,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-12-02 13:37:27,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:27,256 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:37:27,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:37:27,256 INFO L85 PathProgramCache]: Analyzing trace with hash -102877155, now seen corresponding path program 1 times [2024-12-02 13:37:27,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:37:27,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995511358] [2024-12-02 13:37:27,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:37:27,257 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 13:37:27,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:37:27,258 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:27,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-12-02 13:37:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:37:27,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 13:37:27,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:37:28,417 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-12-02 13:37:28,417 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:37:28,417 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:37:28,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1995511358] [2024-12-02 13:37:28,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1995511358] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:37:28,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:37:28,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:37:28,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331547914] [2024-12-02 13:37:28,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:37:28,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:37:28,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:37:28,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:37:28,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:37:28,418 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 13:37:28,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:37:28,907 INFO L93 Difference]: Finished difference Result 92 states and 100 transitions. [2024-12-02 13:37:28,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:37:28,908 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 78 [2024-12-02 13:37:28,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:37:28,909 INFO L225 Difference]: With dead ends: 92 [2024-12-02 13:37:28,909 INFO L226 Difference]: Without dead ends: 90 [2024-12-02 13:37:28,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:37:28,910 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 15 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:37:28,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 135 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:37:28,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-12-02 13:37:28,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 79. [2024-12-02 13:37:28,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 60 states have (on average 1.0833333333333333) internal successors, (65), 61 states have internal predecessors, (65), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 13:37:28,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2024-12-02 13:37:28,920 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 78 [2024-12-02 13:37:28,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:37:28,920 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2024-12-02 13:37:28,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 13:37:28,921 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2024-12-02 13:37:28,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 13:37:28,922 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:37:28,922 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:37:28,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-12-02 13:37:29,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:29,123 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:37:29,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:37:29,123 INFO L85 PathProgramCache]: Analyzing trace with hash -101030113, now seen corresponding path program 1 times [2024-12-02 13:37:29,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:37:29,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1258230483] [2024-12-02 13:37:29,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:37:29,123 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 13:37:29,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:37:29,125 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:29,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-12-02 13:37:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:37:29,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:37:29,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:37:31,695 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-12-02 13:37:31,695 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:37:31,696 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:37:31,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1258230483] [2024-12-02 13:37:31,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1258230483] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:37:31,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:37:31,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:37:31,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958906769] [2024-12-02 13:37:31,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:37:31,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:37:31,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:37:31,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:37:31,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:37:31,696 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 13:37:32,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:37:32,430 INFO L93 Difference]: Finished difference Result 156 states and 173 transitions. [2024-12-02 13:37:32,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:37:32,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 78 [2024-12-02 13:37:32,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:37:32,436 INFO L225 Difference]: With dead ends: 156 [2024-12-02 13:37:32,436 INFO L226 Difference]: Without dead ends: 109 [2024-12-02 13:37:32,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:37:32,437 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:37:32,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 80 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 13:37:32,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-12-02 13:37:32,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2024-12-02 13:37:32,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 81 states have (on average 1.0740740740740742) internal successors, (87), 82 states have internal predecessors, (87), 16 states have call successors, (16), 10 states have call predecessors, (16), 10 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 13:37:32,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 119 transitions. [2024-12-02 13:37:32,445 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 119 transitions. Word has length 78 [2024-12-02 13:37:32,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:37:32,445 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 119 transitions. [2024-12-02 13:37:32,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 13:37:32,445 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 119 transitions. [2024-12-02 13:37:32,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 13:37:32,446 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:37:32,446 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:37:32,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-12-02 13:37:32,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:32,647 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:37:32,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:37:32,647 INFO L85 PathProgramCache]: Analyzing trace with hash 147116381, now seen corresponding path program 1 times [2024-12-02 13:37:32,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 13:37:32,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103632574] [2024-12-02 13:37:32,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:37:32,648 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 13:37:32,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 13:37:32,649 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:32,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-12-02 13:37:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:37:32,780 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 13:37:32,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:37:37,854 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 114 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-12-02 13:37:37,854 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:37:40,327 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 13:37:40,328 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 13:37:40,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103632574] [2024-12-02 13:37:40,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103632574] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:37:40,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:37:40,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-12-02 13:37:40,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217840211] [2024-12-02 13:37:40,328 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:37:40,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:37:40,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 13:37:40,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:37:40,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:37:40,329 INFO L87 Difference]: Start difference. First operand 108 states and 119 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 13:37:43,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:37:43,696 INFO L93 Difference]: Finished difference Result 186 states and 206 transitions. [2024-12-02 13:37:43,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:37:43,699 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 78 [2024-12-02 13:37:43,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:37:43,700 INFO L225 Difference]: With dead ends: 186 [2024-12-02 13:37:43,700 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 13:37:43,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 147 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:37:43,700 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 8 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:37:43,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 121 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 13:37:43,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 13:37:43,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 13:37:43,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:37:43,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 13:37:43,701 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2024-12-02 13:37:43,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:37:43,702 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:37:43,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 13:37:43,702 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 13:37:43,702 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 13:37:43,704 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 13:37:43,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-12-02 13:37:43,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 13:37:43,908 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:37:43,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 13:37:50,507 WARN L286 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 135 DAG size of output: 24 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 13:37:58,234 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:37:58,243 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 13:37:58,243 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 13:37:58,243 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 13:37:58,243 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 13:37:58,243 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 13:37:58,243 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-12-02 13:37:58,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:37:58 BoogieIcfgContainer [2024-12-02 13:37:58,245 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:37:58,245 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:37:58,245 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:37:58,246 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:37:58,246 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:36:58" (3/4) ... [2024-12-02 13:37:58,247 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 13:37:58,251 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 13:37:58,253 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-12-02 13:37:58,253 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 13:37:58,253 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 13:37:58,254 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 13:37:58,315 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 13:37:58,316 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 13:37:58,316 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:37:58,316 INFO L158 Benchmark]: Toolchain (without parser) took 60035.31ms. Allocated memory was 92.3MB in the beginning and 176.2MB in the end (delta: 83.9MB). Free memory was 70.0MB in the beginning and 62.6MB in the end (delta: 7.4MB). Peak memory consumption was 88.7MB. Max. memory is 16.1GB. [2024-12-02 13:37:58,317 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 83.9MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:37:58,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.12ms. Allocated memory is still 92.3MB. Free memory was 69.9MB in the beginning and 58.0MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:37:58,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.33ms. Allocated memory is still 92.3MB. Free memory was 57.9MB in the beginning and 56.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:37:58,317 INFO L158 Benchmark]: Boogie Preprocessor took 36.31ms. Allocated memory is still 92.3MB. Free memory was 56.5MB in the beginning and 54.8MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:37:58,318 INFO L158 Benchmark]: RCFGBuilder took 370.75ms. Allocated memory is still 92.3MB. Free memory was 54.7MB in the beginning and 43.8MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:37:58,318 INFO L158 Benchmark]: TraceAbstraction took 59289.88ms. Allocated memory was 92.3MB in the beginning and 176.2MB in the end (delta: 83.9MB). Free memory was 43.1MB in the beginning and 68.9MB in the end (delta: -25.8MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. [2024-12-02 13:37:58,318 INFO L158 Benchmark]: Witness Printer took 70.31ms. Allocated memory is still 176.2MB. Free memory was 68.9MB in the beginning and 62.6MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:37:58,320 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 83.9MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.12ms. Allocated memory is still 92.3MB. Free memory was 69.9MB in the beginning and 58.0MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.33ms. Allocated memory is still 92.3MB. Free memory was 57.9MB in the beginning and 56.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.31ms. Allocated memory is still 92.3MB. Free memory was 56.5MB in the beginning and 54.8MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 370.75ms. Allocated memory is still 92.3MB. Free memory was 54.7MB in the beginning and 43.8MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 59289.88ms. Allocated memory was 92.3MB in the beginning and 176.2MB in the end (delta: 83.9MB). Free memory was 43.1MB in the beginning and 68.9MB in the end (delta: -25.8MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. * Witness Printer took 70.31ms. Allocated memory is still 176.2MB. Free memory was 68.9MB in the beginning and 62.6MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.9s, OverallIterations: 9, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 182 SdHoareTripleChecker+Valid, 6.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 168 mSDsluCounter, 922 SdHoareTripleChecker+Invalid, 6.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 629 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 577 IncrementalHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 293 mSDtfsCounter, 577 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 658 GetRequests, 582 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 15.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=8, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 61 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 28.9s InterpolantComputationTime, 518 NumberOfCodeBlocks, 518 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 625 ConstructedInterpolants, 0 QuantifiedInterpolants, 2954 SizeOfPredicates, 51 NumberOfNonLiveVariables, 876 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 1085/1104 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: (var_1_3 <= 0) RESULT: Ultimate proved your program to be correct! [2024-12-02 13:37:58,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc38fac-1a05-4449-a4a8-d82fd57380bb/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 Result: TRUE