./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.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_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 06db6f319d52eb323239c55a3f8926e2d1f65f125a385def75e49857a30f4ad4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:19:27,276 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:19:27,332 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 12:19:27,336 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:19:27,336 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:19:27,356 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:19:27,357 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:19:27,357 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:19:27,357 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:19:27,357 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:19:27,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:19:27,358 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:19:27,358 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:19:27,358 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:19:27,358 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:19:27,359 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:19:27,359 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:19:27,359 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:19:27,359 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:19:27,359 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:19:27,359 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:19:27,359 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:19:27,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:19:27,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:19:27,359 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:19:27,359 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:19:27,360 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:19:27,360 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:19:27,360 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:19:27,360 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:19:27,360 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:19:27,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:19:27,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:19:27,360 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:19:27,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:19:27,361 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:19:27,361 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:19:27,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:19:27,361 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:19:27,361 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:19:27,361 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:19:27,361 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:19:27,361 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:19:27,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:19:27,362 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:19:27,362 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:19:27,362 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:19:27,362 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:19:27,362 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_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 -> 06db6f319d52eb323239c55a3f8926e2d1f65f125a385def75e49857a30f4ad4 [2024-12-02 12:19:27,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:19:27,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:19:27,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:19:27,594 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:19:27,594 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:19:27,595 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i [2024-12-02 12:19:30,208 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/data/5231d9fec/892d15f882384a369436ec46aba398d3/FLAG7390edc1f [2024-12-02 12:19:30,403 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:19:30,403 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i [2024-12-02 12:19:30,409 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/data/5231d9fec/892d15f882384a369436ec46aba398d3/FLAG7390edc1f [2024-12-02 12:19:30,776 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/data/5231d9fec/892d15f882384a369436ec46aba398d3 [2024-12-02 12:19:30,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:19:30,780 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:19:30,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:19:30,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:19:30,784 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:19:30,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:19:30" (1/1) ... [2024-12-02 12:19:30,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a031a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:30, skipping insertion in model container [2024-12-02 12:19:30,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:19:30" (1/1) ... [2024-12-02 12:19:30,801 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:19:30,907 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_251a668b-a4c6-4c08-81aa-edd685ccdd41/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i[916,929] [2024-12-02 12:19:30,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:19:30,959 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:19:30,968 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_251a668b-a4c6-4c08-81aa-edd685ccdd41/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i[916,929] [2024-12-02 12:19:30,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:19:31,017 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:19:31,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:31 WrapperNode [2024-12-02 12:19:31,018 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:19:31,019 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:19:31,019 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:19:31,019 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:19:31,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:31" (1/1) ... [2024-12-02 12:19:31,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:31" (1/1) ... [2024-12-02 12:19:31,067 INFO L138 Inliner]: procedures = 30, calls = 133, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 410 [2024-12-02 12:19:31,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:19:31,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:19:31,068 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:19:31,068 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:19:31,075 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:31" (1/1) ... [2024-12-02 12:19:31,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:31" (1/1) ... [2024-12-02 12:19:31,080 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:31" (1/1) ... [2024-12-02 12:19:31,087 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-12-02 12:19:31,087 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:31" (1/1) ... [2024-12-02 12:19:31,087 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:31" (1/1) ... [2024-12-02 12:19:31,103 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:31" (1/1) ... [2024-12-02 12:19:31,105 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:31" (1/1) ... [2024-12-02 12:19:31,110 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:31" (1/1) ... [2024-12-02 12:19:31,112 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:31" (1/1) ... [2024-12-02 12:19:31,114 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:31" (1/1) ... [2024-12-02 12:19:31,119 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:19:31,119 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:19:31,120 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:19:31,120 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:19:31,121 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:31" (1/1) ... [2024-12-02 12:19:31,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:19:31,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:19:31,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:19:31,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:19:31,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:19:31,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-12-02 12:19:31,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-12-02 12:19:31,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-12-02 12:19:31,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 12:19:31,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-12-02 12:19:31,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 12:19:31,179 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 12:19:31,179 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 12:19:31,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 12:19:31,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:19:31,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:19:31,277 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:19:31,279 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:19:31,668 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-12-02 12:19:31,668 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:19:31,678 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:19:31,678 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 12:19:31,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:19:31 BoogieIcfgContainer [2024-12-02 12:19:31,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:19:31,681 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:19:31,681 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:19:31,685 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:19:31,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:19:30" (1/3) ... [2024-12-02 12:19:31,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b98e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:19:31, skipping insertion in model container [2024-12-02 12:19:31,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:19:31" (2/3) ... [2024-12-02 12:19:31,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b98e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:19:31, skipping insertion in model container [2024-12-02 12:19:31,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:19:31" (3/3) ... [2024-12-02 12:19:31,687 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-31.i [2024-12-02 12:19:31,699 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:19:31,700 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-31.i that has 2 procedures, 87 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 12:19:31,749 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:19:31,759 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;@27ec22ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:19:31,760 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:19:31,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 12:19:31,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 12:19:31,770 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:19:31,771 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:19:31,771 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:19:31,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:19:31,776 INFO L85 PathProgramCache]: Analyzing trace with hash -686948204, now seen corresponding path program 1 times [2024-12-02 12:19:31,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:19:31,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654064018] [2024-12-02 12:19:31,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:19:31,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:19:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:19:32,100 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-12-02 12:19:32,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:19:32,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654064018] [2024-12-02 12:19:32,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654064018] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:19:32,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681817903] [2024-12-02 12:19:32,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:19:32,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:19:32,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:19:32,104 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:19:32,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:19:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:19:32,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 12:19:32,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:19:32,317 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-12-02 12:19:32,317 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:19:32,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681817903] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:19:32,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:19:32,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 12:19:32,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890258665] [2024-12-02 12:19:32,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:19:32,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:19:32,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:19:32,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:19:32,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:19:32,342 INFO L87 Difference]: Start difference. First operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 12:19:32,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:19:32,365 INFO L93 Difference]: Finished difference Result 167 states and 261 transitions. [2024-12-02 12:19:32,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:19:32,366 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2024-12-02 12:19:32,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:19:32,372 INFO L225 Difference]: With dead ends: 167 [2024-12-02 12:19:32,372 INFO L226 Difference]: Without dead ends: 83 [2024-12-02 12:19:32,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 95 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 12:19:32,377 INFO L435 NwaCegarLoop]: 121 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, 121 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 12:19:32,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:19:32,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-12-02 12:19:32,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-12-02 12:19:32,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 70 states have internal predecessors, (99), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 12:19:32,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 121 transitions. [2024-12-02 12:19:32,413 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 121 transitions. Word has length 94 [2024-12-02 12:19:32,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:19:32,413 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 121 transitions. [2024-12-02 12:19:32,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 12:19:32,414 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 121 transitions. [2024-12-02 12:19:32,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 12:19:32,417 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:19:32,417 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:19:32,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:19:32,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 12:19:32,618 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:19:32,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:19:32,618 INFO L85 PathProgramCache]: Analyzing trace with hash 862036710, now seen corresponding path program 1 times [2024-12-02 12:19:32,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:19:32,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809094467] [2024-12-02 12:19:32,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:19:32,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:19:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:19:33,000 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:19:33,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:19:33,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809094467] [2024-12-02 12:19:33,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809094467] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:19:33,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:19:33,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:19:33,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056785122] [2024-12-02 12:19:33,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:19:33,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:19:33,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:19:33,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:19:33,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:19:33,002 INFO L87 Difference]: Start difference. First operand 83 states and 121 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:19:33,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:19:33,025 INFO L93 Difference]: Finished difference Result 163 states and 239 transitions. [2024-12-02 12:19:33,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:19:33,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 94 [2024-12-02 12:19:33,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:19:33,027 INFO L225 Difference]: With dead ends: 163 [2024-12-02 12:19:33,027 INFO L226 Difference]: Without dead ends: 83 [2024-12-02 12:19:33,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:19:33,028 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:19:33,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 235 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:19:33,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-12-02 12:19:33,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-12-02 12:19:33,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 70 states have (on average 1.4) internal successors, (98), 70 states have internal predecessors, (98), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 12:19:33,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2024-12-02 12:19:33,037 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 120 transitions. Word has length 94 [2024-12-02 12:19:33,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:19:33,039 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 120 transitions. [2024-12-02 12:19:33,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:19:33,039 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 120 transitions. [2024-12-02 12:19:33,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 12:19:33,040 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:19:33,041 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:19:33,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:19:33,041 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:19:33,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:19:33,042 INFO L85 PathProgramCache]: Analyzing trace with hash -726311192, now seen corresponding path program 1 times [2024-12-02 12:19:33,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:19:33,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977701421] [2024-12-02 12:19:33,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:19:33,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:19:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:13,056 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:13,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:13,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977701421] [2024-12-02 12:30:13,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977701421] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:13,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:13,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:30:13,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154591962] [2024-12-02 12:30:13,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:13,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:30:13,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:13,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:30:13,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:30:13,059 INFO L87 Difference]: Start difference. First operand 83 states and 120 transitions. Second operand has 7 states, 5 states have (on average 8.4) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 12:30:13,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:13,538 INFO L93 Difference]: Finished difference Result 207 states and 297 transitions. [2024-12-02 12:30:13,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:30:13,539 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 8.4) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 3 states have call successors, (11) Word has length 94 [2024-12-02 12:30:13,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:13,540 INFO L225 Difference]: With dead ends: 207 [2024-12-02 12:30:13,540 INFO L226 Difference]: Without dead ends: 127 [2024-12-02 12:30:13,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:30:13,541 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 56 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:13,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 495 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:30:13,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-12-02 12:30:13,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 124. [2024-12-02 12:30:13,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 108 states have (on average 1.3981481481481481) internal successors, (151), 109 states have internal predecessors, (151), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 12:30:13,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 177 transitions. [2024-12-02 12:30:13,551 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 177 transitions. Word has length 94 [2024-12-02 12:30:13,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:13,552 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 177 transitions. [2024-12-02 12:30:13,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 8.4) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 12:30:13,552 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 177 transitions. [2024-12-02 12:30:13,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 12:30:13,553 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:13,553 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:13,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:30:13,554 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:13,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:13,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1593160989, now seen corresponding path program 1 times [2024-12-02 12:30:13,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:13,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389865426] [2024-12-02 12:30:13,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:13,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:13,745 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:13,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:13,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389865426] [2024-12-02 12:30:13,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389865426] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:13,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:13,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:30:13,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654937842] [2024-12-02 12:30:13,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:13,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:30:13,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:13,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:30:13,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:30:13,747 INFO L87 Difference]: Start difference. First operand 124 states and 177 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:13,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:13,764 INFO L93 Difference]: Finished difference Result 245 states and 351 transitions. [2024-12-02 12:30:13,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:30:13,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-12-02 12:30:13,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:13,767 INFO L225 Difference]: With dead ends: 245 [2024-12-02 12:30:13,767 INFO L226 Difference]: Without dead ends: 124 [2024-12-02 12:30:13,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 12:30:13,768 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:13,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:30:13,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-12-02 12:30:13,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-12-02 12:30:13,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 108 states have (on average 1.3796296296296295) internal successors, (149), 109 states have internal predecessors, (149), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 12:30:13,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 175 transitions. [2024-12-02 12:30:13,778 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 175 transitions. Word has length 96 [2024-12-02 12:30:13,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:13,779 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 175 transitions. [2024-12-02 12:30:13,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:13,779 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 175 transitions. [2024-12-02 12:30:13,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 12:30:13,780 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:13,781 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:13,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:30:13,781 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:13,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:13,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1986187999, now seen corresponding path program 1 times [2024-12-02 12:30:13,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:13,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589347481] [2024-12-02 12:30:13,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:13,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:14,950 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:14,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:14,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589347481] [2024-12-02 12:30:14,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589347481] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:14,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:14,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:30:14,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528631641] [2024-12-02 12:30:14,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:14,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:30:14,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:14,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:30:14,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:30:14,952 INFO L87 Difference]: Start difference. First operand 124 states and 175 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 12:30:15,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:15,639 INFO L93 Difference]: Finished difference Result 259 states and 364 transitions. [2024-12-02 12:30:15,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:30:15,639 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2024-12-02 12:30:15,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:15,641 INFO L225 Difference]: With dead ends: 259 [2024-12-02 12:30:15,641 INFO L226 Difference]: Without dead ends: 138 [2024-12-02 12:30:15,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:30:15,642 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 60 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:15,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 511 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:30:15,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-12-02 12:30:15,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 98. [2024-12-02 12:30:15,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 82 states have (on average 1.3414634146341464) internal successors, (110), 83 states have internal predecessors, (110), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 12:30:15,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 136 transitions. [2024-12-02 12:30:15,652 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 136 transitions. Word has length 96 [2024-12-02 12:30:15,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:15,653 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 136 transitions. [2024-12-02 12:30:15,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 12:30:15,653 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 136 transitions. [2024-12-02 12:30:15,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 12:30:15,654 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:15,655 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:15,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 12:30:15,655 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:15,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:15,655 INFO L85 PathProgramCache]: Analyzing trace with hash 798189168, now seen corresponding path program 1 times [2024-12-02 12:30:15,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:15,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278594878] [2024-12-02 12:30:15,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:15,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:16,310 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:16,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:16,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278594878] [2024-12-02 12:30:16,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278594878] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:16,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:16,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:30:16,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882686899] [2024-12-02 12:30:16,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:16,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:30:16,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:16,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:30:16,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:30:16,312 INFO L87 Difference]: Start difference. First operand 98 states and 136 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 12:30:16,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:16,679 INFO L93 Difference]: Finished difference Result 222 states and 308 transitions. [2024-12-02 12:30:16,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:30:16,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2024-12-02 12:30:16,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:16,681 INFO L225 Difference]: With dead ends: 222 [2024-12-02 12:30:16,681 INFO L226 Difference]: Without dead ends: 132 [2024-12-02 12:30:16,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:30:16,682 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 49 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:16,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 476 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:30:16,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-12-02 12:30:16,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 98. [2024-12-02 12:30:16,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 82 states have (on average 1.329268292682927) internal successors, (109), 83 states have internal predecessors, (109), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 12:30:16,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 135 transitions. [2024-12-02 12:30:16,692 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 135 transitions. Word has length 96 [2024-12-02 12:30:16,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:16,692 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 135 transitions. [2024-12-02 12:30:16,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 12:30:16,692 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 135 transitions. [2024-12-02 12:30:16,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 12:30:16,694 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:16,694 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:16,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 12:30:16,694 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:16,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:16,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1477097076, now seen corresponding path program 1 times [2024-12-02 12:30:16,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:16,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982705811] [2024-12-02 12:30:16,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:16,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:16,822 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 12:30:16,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:16,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982705811] [2024-12-02 12:30:16,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982705811] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:30:16,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576135610] [2024-12-02 12:30:16,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:16,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:30:16,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:30:16,825 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:30:16,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:30:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:16,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 12:30:16,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:30:17,046 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:17,046 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:30:17,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576135610] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:17,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:30:17,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-12-02 12:30:17,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865141090] [2024-12-02 12:30:17,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:17,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:30:17,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:17,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:30:17,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:30:17,048 INFO L87 Difference]: Start difference. First operand 98 states and 135 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:17,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:17,083 INFO L93 Difference]: Finished difference Result 191 states and 264 transitions. [2024-12-02 12:30:17,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:30:17,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 97 [2024-12-02 12:30:17,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:17,087 INFO L225 Difference]: With dead ends: 191 [2024-12-02 12:30:17,087 INFO L226 Difference]: Without dead ends: 101 [2024-12-02 12:30:17,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:30:17,088 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:17,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 454 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:30:17,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-12-02 12:30:17,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2024-12-02 12:30:17,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 83 states have (on average 1.3253012048192772) internal successors, (110), 84 states have internal predecessors, (110), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 12:30:17,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 136 transitions. [2024-12-02 12:30:17,098 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 136 transitions. Word has length 97 [2024-12-02 12:30:17,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:17,099 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 136 transitions. [2024-12-02 12:30:17,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:17,099 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 136 transitions. [2024-12-02 12:30:17,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 12:30:17,100 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:17,100 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:17,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 12:30:17,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:30:17,301 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:17,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:17,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1218931638, now seen corresponding path program 1 times [2024-12-02 12:30:17,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:17,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722209529] [2024-12-02 12:30:17,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:17,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:17,872 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:17,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:17,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722209529] [2024-12-02 12:30:17,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722209529] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:17,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:17,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:30:17,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995753766] [2024-12-02 12:30:17,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:17,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:30:17,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:17,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:30:17,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:30:17,873 INFO L87 Difference]: Start difference. First operand 99 states and 136 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 12:30:18,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:18,175 INFO L93 Difference]: Finished difference Result 219 states and 299 transitions. [2024-12-02 12:30:18,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:30:18,176 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2024-12-02 12:30:18,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:18,177 INFO L225 Difference]: With dead ends: 219 [2024-12-02 12:30:18,177 INFO L226 Difference]: Without dead ends: 128 [2024-12-02 12:30:18,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:30:18,178 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 38 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:18,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 386 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:30:18,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-12-02 12:30:18,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 99. [2024-12-02 12:30:18,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 83 states have (on average 1.3132530120481927) internal successors, (109), 84 states have internal predecessors, (109), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 12:30:18,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 135 transitions. [2024-12-02 12:30:18,186 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 135 transitions. Word has length 97 [2024-12-02 12:30:18,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:18,186 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 135 transitions. [2024-12-02 12:30:18,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 12:30:18,187 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 135 transitions. [2024-12-02 12:30:18,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 12:30:18,187 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:18,188 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:18,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:30:18,188 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:18,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:18,188 INFO L85 PathProgramCache]: Analyzing trace with hash 721006156, now seen corresponding path program 1 times [2024-12-02 12:30:18,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:18,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130252295] [2024-12-02 12:30:18,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:18,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:18,610 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:18,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:18,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130252295] [2024-12-02 12:30:18,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130252295] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:18,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:18,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:30:18,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437239491] [2024-12-02 12:30:18,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:18,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:30:18,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:18,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:30:18,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:30:18,611 INFO L87 Difference]: Start difference. First operand 99 states and 135 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 12:30:18,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:18,974 INFO L93 Difference]: Finished difference Result 269 states and 365 transitions. [2024-12-02 12:30:18,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:30:18,975 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2024-12-02 12:30:18,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:18,976 INFO L225 Difference]: With dead ends: 269 [2024-12-02 12:30:18,976 INFO L226 Difference]: Without dead ends: 178 [2024-12-02 12:30:18,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:30:18,977 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 72 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:18,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 520 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:30:18,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-12-02 12:30:18,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 175. [2024-12-02 12:30:18,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 149 states have (on average 1.308724832214765) internal successors, (195), 151 states have internal predecessors, (195), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 19 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 12:30:18,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 237 transitions. [2024-12-02 12:30:18,990 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 237 transitions. Word has length 98 [2024-12-02 12:30:18,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:18,991 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 237 transitions. [2024-12-02 12:30:18,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 12:30:18,991 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 237 transitions. [2024-12-02 12:30:18,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 12:30:18,992 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:18,992 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:18,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 12:30:18,992 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:18,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:18,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1669998802, now seen corresponding path program 1 times [2024-12-02 12:30:18,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:18,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887649359] [2024-12-02 12:30:18,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:18,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:19,201 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:19,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:19,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887649359] [2024-12-02 12:30:19,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887649359] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:19,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:19,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:30:19,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308512789] [2024-12-02 12:30:19,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:19,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:30:19,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:19,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:30:19,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:30:19,203 INFO L87 Difference]: Start difference. First operand 175 states and 237 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:19,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:19,457 INFO L93 Difference]: Finished difference Result 437 states and 584 transitions. [2024-12-02 12:30:19,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:30:19,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-12-02 12:30:19,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:19,460 INFO L225 Difference]: With dead ends: 437 [2024-12-02 12:30:19,460 INFO L226 Difference]: Without dead ends: 270 [2024-12-02 12:30:19,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:30:19,461 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 48 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:19,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 607 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:30:19,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-12-02 12:30:19,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 183. [2024-12-02 12:30:19,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 157 states have (on average 1.3184713375796178) internal successors, (207), 159 states have internal predecessors, (207), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 19 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 12:30:19,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 249 transitions. [2024-12-02 12:30:19,475 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 249 transitions. Word has length 99 [2024-12-02 12:30:19,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:19,475 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 249 transitions. [2024-12-02 12:30:19,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:19,475 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 249 transitions. [2024-12-02 12:30:19,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 12:30:19,477 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:19,477 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:19,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 12:30:19,477 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:19,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:19,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1603900140, now seen corresponding path program 1 times [2024-12-02 12:30:19,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:19,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504537142] [2024-12-02 12:30:19,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:19,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:19,667 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:19,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:19,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504537142] [2024-12-02 12:30:19,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504537142] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:19,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:19,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:30:19,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584954695] [2024-12-02 12:30:19,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:19,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:30:19,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:19,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:30:19,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:30:19,669 INFO L87 Difference]: Start difference. First operand 183 states and 249 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:19,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:19,843 INFO L93 Difference]: Finished difference Result 453 states and 611 transitions. [2024-12-02 12:30:19,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:30:19,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-12-02 12:30:19,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:19,845 INFO L225 Difference]: With dead ends: 453 [2024-12-02 12:30:19,846 INFO L226 Difference]: Without dead ends: 278 [2024-12-02 12:30:19,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:30:19,846 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 96 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:19,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 322 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:30:19,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-12-02 12:30:19,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 188. [2024-12-02 12:30:19,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 164 states have (on average 1.329268292682927) internal successors, (218), 165 states have internal predecessors, (218), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 12:30:19,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 256 transitions. [2024-12-02 12:30:19,862 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 256 transitions. Word has length 99 [2024-12-02 12:30:19,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:19,862 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 256 transitions. [2024-12-02 12:30:19,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:19,863 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 256 transitions. [2024-12-02 12:30:19,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 12:30:19,863 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:19,863 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:19,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 12:30:19,864 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:19,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:19,864 INFO L85 PathProgramCache]: Analyzing trace with hash 15552238, now seen corresponding path program 1 times [2024-12-02 12:30:19,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:19,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109561398] [2024-12-02 12:30:19,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:19,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:20,028 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:20,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:20,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109561398] [2024-12-02 12:30:20,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109561398] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:20,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:20,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:30:20,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100513302] [2024-12-02 12:30:20,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:20,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:30:20,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:20,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:30:20,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:30:20,029 INFO L87 Difference]: Start difference. First operand 188 states and 256 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:20,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:20,272 INFO L93 Difference]: Finished difference Result 464 states and 617 transitions. [2024-12-02 12:30:20,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:30:20,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-12-02 12:30:20,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:20,275 INFO L225 Difference]: With dead ends: 464 [2024-12-02 12:30:20,275 INFO L226 Difference]: Without dead ends: 279 [2024-12-02 12:30:20,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:30:20,276 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 55 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:20,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 373 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:30:20,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-12-02 12:30:20,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 267. [2024-12-02 12:30:20,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 231 states have (on average 1.277056277056277) internal successors, (295), 234 states have internal predecessors, (295), 27 states have call successors, (27), 8 states have call predecessors, (27), 8 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2024-12-02 12:30:20,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 349 transitions. [2024-12-02 12:30:20,298 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 349 transitions. Word has length 99 [2024-12-02 12:30:20,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:20,298 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 349 transitions. [2024-12-02 12:30:20,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:20,299 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 349 transitions. [2024-12-02 12:30:20,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 12:30:20,299 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:20,299 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:20,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 12:30:20,300 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:20,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:20,300 INFO L85 PathProgramCache]: Analyzing trace with hash -949172821, now seen corresponding path program 1 times [2024-12-02 12:30:20,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:20,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917445661] [2024-12-02 12:30:20,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:20,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:30:20,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1744284263] [2024-12-02 12:30:20,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:20,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:30:20,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:30:20,358 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:30:20,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 12:30:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:20,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 12:30:20,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:30:20,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 60 [2024-12-02 12:30:20,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 78 [2024-12-02 12:30:20,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 12:30:20,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 12:30:20,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 12:30:20,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 12:30:21,089 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:21,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 24 [2024-12-02 12:30:21,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:21,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 24 [2024-12-02 12:30:21,129 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:21,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24 [2024-12-02 12:30:21,178 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:21,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 12 [2024-12-02 12:30:21,228 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:21,228 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:30:21,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:21,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917445661] [2024-12-02 12:30:21,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 12:30:21,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744284263] [2024-12-02 12:30:21,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744284263] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:21,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:21,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:30:21,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537856533] [2024-12-02 12:30:21,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:21,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:30:21,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:21,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:30:21,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:30:21,230 INFO L87 Difference]: Start difference. First operand 267 states and 349 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:23,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:23,626 INFO L93 Difference]: Finished difference Result 826 states and 1089 transitions. [2024-12-02 12:30:23,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:30:23,626 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-12-02 12:30:23,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:23,628 INFO L225 Difference]: With dead ends: 826 [2024-12-02 12:30:23,628 INFO L226 Difference]: Without dead ends: 562 [2024-12-02 12:30:23,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:30:23,629 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 128 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:23,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 531 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 12:30:23,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-12-02 12:30:23,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 396. [2024-12-02 12:30:23,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 346 states have (on average 1.2658959537572254) internal successors, (438), 349 states have internal predecessors, (438), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 12:30:23,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 514 transitions. [2024-12-02 12:30:23,663 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 514 transitions. Word has length 99 [2024-12-02 12:30:23,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:23,663 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 514 transitions. [2024-12-02 12:30:23,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:23,664 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 514 transitions. [2024-12-02 12:30:23,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 12:30:23,664 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:23,665 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:23,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 12:30:23,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 12:30:23,865 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:23,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:23,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1418951654, now seen corresponding path program 1 times [2024-12-02 12:30:23,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:23,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538498342] [2024-12-02 12:30:23,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:23,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:24,009 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 12:30:24,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:24,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538498342] [2024-12-02 12:30:24,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538498342] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:30:24,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859769809] [2024-12-02 12:30:24,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:24,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:30:24,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:30:24,011 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:30:24,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 12:30:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:24,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 12:30:24,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:30:24,223 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:24,223 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:30:24,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859769809] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:24,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:30:24,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-12-02 12:30:24,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258736754] [2024-12-02 12:30:24,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:24,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:30:24,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:24,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:30:24,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:30:24,224 INFO L87 Difference]: Start difference. First operand 396 states and 514 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:24,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:24,278 INFO L93 Difference]: Finished difference Result 676 states and 880 transitions. [2024-12-02 12:30:24,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:30:24,279 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 100 [2024-12-02 12:30:24,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:24,281 INFO L225 Difference]: With dead ends: 676 [2024-12-02 12:30:24,281 INFO L226 Difference]: Without dead ends: 412 [2024-12-02 12:30:24,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:30:24,282 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:24,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 556 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:30:24,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-12-02 12:30:24,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 406. [2024-12-02 12:30:24,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 356 states have (on average 1.2584269662921348) internal successors, (448), 359 states have internal predecessors, (448), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 12:30:24,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 524 transitions. [2024-12-02 12:30:24,314 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 524 transitions. Word has length 100 [2024-12-02 12:30:24,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:24,314 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 524 transitions. [2024-12-02 12:30:24,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:24,315 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 524 transitions. [2024-12-02 12:30:24,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 12:30:24,316 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:24,316 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:24,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 12:30:24,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 12:30:24,516 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:24,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:24,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1251915825, now seen corresponding path program 1 times [2024-12-02 12:30:24,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:24,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674661428] [2024-12-02 12:30:24,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:24,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 12:30:24,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1600185423] [2024-12-02 12:30:24,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:24,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:30:24,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:30:24,586 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:30:24,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 12:30:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 12:30:25,091 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 12:30:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 12:30:25,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 12:30:25,398 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 12:30:25,399 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 12:30:25,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 12:30:25,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 12:30:25,603 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:30:25,647 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 12:30:25,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:30:25 BoogieIcfgContainer [2024-12-02 12:30:25,650 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 12:30:25,650 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 12:30:25,650 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 12:30:25,650 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 12:30:25,651 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:19:31" (3/4) ... [2024-12-02 12:30:25,652 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 12:30:25,653 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 12:30:25,653 INFO L158 Benchmark]: Toolchain (without parser) took 654873.77ms. Allocated memory was 117.4MB in the beginning and 394.3MB in the end (delta: 276.8MB). Free memory was 92.5MB in the beginning and 322.9MB in the end (delta: -230.4MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. [2024-12-02 12:30:25,653 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:30:25,654 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.49ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 77.4MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 12:30:25,654 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.26ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 74.1MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:30:25,654 INFO L158 Benchmark]: Boogie Preprocessor took 51.18ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 71.1MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 12:30:25,654 INFO L158 Benchmark]: RCFGBuilder took 559.13ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 43.8MB in the end (delta: 27.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 12:30:25,654 INFO L158 Benchmark]: TraceAbstraction took 653969.00ms. Allocated memory was 117.4MB in the beginning and 394.3MB in the end (delta: 276.8MB). Free memory was 43.3MB in the beginning and 322.9MB in the end (delta: -279.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:30:25,655 INFO L158 Benchmark]: Witness Printer took 2.70ms. Allocated memory is still 394.3MB. Free memory was 322.9MB in the beginning and 322.9MB in the end (delta: 52.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 12:30:25,656 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.49ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 77.4MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.26ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 74.1MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.18ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 71.1MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 559.13ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 43.8MB in the end (delta: 27.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 653969.00ms. Allocated memory was 117.4MB in the beginning and 394.3MB in the end (delta: 276.8MB). Free memory was 43.3MB in the beginning and 322.9MB in the end (delta: -279.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.70ms. Allocated memory is still 394.3MB. Free memory was 322.9MB in the beginning and 322.9MB in the end (delta: 52.9kB). Peak memory consumption was 8.4MB. 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 someBinaryDOUBLEComparisonOperation at line 111, overapproximation of someBinaryDOUBLEComparisonOperation at line 104, overapproximation of someBinaryDOUBLEComparisonOperation at line 104. Possible FailurePath: [L34] unsigned char isInitial = 0; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 200, 0, 1107940323, 0, 4, -32, 64, 4, 0.97, 32.6 }; [L47] signed long int last_1_WrapperStruct00_var_1_7 = 4; [L48] double last_1_WrapperStruct00_var_1_13 = 0.97; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L115] isInitial = 1 [L116] FCALL initially() [L118] CALL updateLastVariables() [L107] EXPR WrapperStruct00.var_1_7 [L107] last_1_WrapperStruct00_var_1_7 = WrapperStruct00.var_1_7 [L108] EXPR WrapperStruct00.var_1_13 [L108] last_1_WrapperStruct00_var_1_13 = WrapperStruct00.var_1_13 [L118] RET updateLastVariables() [L119] CALL updateVariables() [L88] WrapperStruct00.var_1_2 = __VERIFIER_nondet_uchar() [L89] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L89] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L89] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L90] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L90] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L90] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L91] WrapperStruct00.var_1_3 = __VERIFIER_nondet_long() [L92] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_3 >= 1073741822) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_3 >= 1073741822) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L93] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_3 <= 2147483646) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L93] RET assume_abort_if_not(WrapperStruct00.var_1_3 <= 2147483646) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L94] WrapperStruct00.var_1_6 = __VERIFIER_nondet_uchar() [L95] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L96] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L97] WrapperStruct00.var_1_8 = __VERIFIER_nondet_long() [L98] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= -1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L98] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= -1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L99] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L99] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L100] WrapperStruct00.var_1_12 = __VERIFIER_nondet_uchar() [L101] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L101] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L102] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 254) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L102] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 254) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L103] WrapperStruct00.var_1_14 = __VERIFIER_nondet_double() [L104] EXPR WrapperStruct00.var_1_14 [L104] EXPR WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F [L104] EXPR WrapperStruct00.var_1_14 [L104] EXPR WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L104] EXPR (WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L104] CALL assume_abort_if_not((WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L104] RET assume_abort_if_not((WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L119] RET updateVariables() [L120] CALL step() [L52] EXPR WrapperStruct00.var_1_3 [L52] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L52] COND FALSE !(! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) [L59] EXPR WrapperStruct00.var_1_12 [L59] WrapperStruct00.var_1_9 = WrapperStruct00.var_1_12 [L61] EXPR WrapperStruct00.var_1_9 [L61] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L61] COND FALSE !(WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) [L64] EXPR WrapperStruct00.var_1_9 [L64] EXPR WrapperStruct00.var_1_3 [L64] WrapperStruct00.var_1_7 = (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3) [L66] EXPR WrapperStruct00.var_1_9 [L66] EXPR WrapperStruct00.var_1_3 [L66] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L66] COND FALSE !((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) [L77] EXPR WrapperStruct00.var_1_14 [L77] WrapperStruct00.var_1_13 = WrapperStruct00.var_1_14 [L79] WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L79] COND TRUE WrapperStruct00.var_1_2 [L80] EXPR WrapperStruct00.var_1_3 [L80] EXPR WrapperStruct00.var_1_9 [L80] EXPR WrapperStruct00.var_1_9 [L80] WrapperStruct00.var_1_1 = ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9) [L120] RET step() [L121] CALL, EXPR property() [L111] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1) [L111] EXPR WrapperStruct00.var_1_1 [L111] EXPR WrapperStruct00.var_1_3 [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3)))) [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR (WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))) [L111] EXPR WrapperStruct00.var_1_7 [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_3 [L111] EXPR (WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR ((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12))) [L111] EXPR WrapperStruct00.var_1_3 [L111] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR (! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_12 [L111] EXPR (! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR ((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)))) && (((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_3 [L111] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR ((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14)) [L111] EXPR WrapperStruct00.var_1_13 [L111] EXPR WrapperStruct00.var_1_14 [L111] EXPR ((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)))) && (((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111-L112] return (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)))) && (((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) ; [L121] RET, EXPR property() [L121] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 653.9s, OverallIterations: 15, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 608 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 602 mSDsluCounter, 5819 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4150 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2313 IncrementalHoareTripleChecker+Invalid, 2364 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 1669 mSDtfsCounter, 2313 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 530 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=406occurred in iteration=14, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 472 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 644.4s InterpolantComputationTime, 1948 NumberOfCodeBlocks, 1948 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1632 ConstructedInterpolants, 0 QuantifiedInterpolants, 3613 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1517 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 3660/3740 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 12:30:25,862 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-12-02 12:30:25,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 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_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 06db6f319d52eb323239c55a3f8926e2d1f65f125a385def75e49857a30f4ad4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:30:27,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:30:27,764 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 12:30:27,770 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:30:27,771 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:30:27,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:30:27,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:30:27,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:30:27,795 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:30:27,796 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:30:27,796 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:30:27,796 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:30:27,796 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:30:27,797 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:30:27,797 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:30:27,797 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:30:27,797 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:30:27,797 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:30:27,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:30:27,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:30:27,797 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:30:27,798 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:30:27,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:30:27,798 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 12:30:27,798 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 12:30:27,798 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 12:30:27,798 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:30:27,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:30:27,798 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:30:27,798 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:30:27,798 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:30:27,798 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:30:27,798 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:30:27,799 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:30:27,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:30:27,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:30:27,799 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:30:27,799 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:30:27,799 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:30:27,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:30:27,799 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:30:27,799 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:30:27,800 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:30:27,800 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:30:27,800 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 12:30:27,800 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 12:30:27,800 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:30:27,800 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:30:27,800 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:30:27,800 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:30:27,800 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_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 -> 06db6f319d52eb323239c55a3f8926e2d1f65f125a385def75e49857a30f4ad4 [2024-12-02 12:30:28,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:30:28,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:30:28,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:30:28,044 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:30:28,045 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:30:28,046 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i [2024-12-02 12:30:30,754 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/data/528504e2b/c6bdab547f8f4aa688225538239aae3b/FLAG5bdb25f54 [2024-12-02 12:30:30,942 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:30:30,943 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i [2024-12-02 12:30:30,951 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/data/528504e2b/c6bdab547f8f4aa688225538239aae3b/FLAG5bdb25f54 [2024-12-02 12:30:31,307 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/data/528504e2b/c6bdab547f8f4aa688225538239aae3b [2024-12-02 12:30:31,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:30:31,310 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:30:31,312 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:30:31,312 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:30:31,315 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:30:31,315 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:30:31" (1/1) ... [2024-12-02 12:30:31,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31327731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:31, skipping insertion in model container [2024-12-02 12:30:31,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:30:31" (1/1) ... [2024-12-02 12:30:31,332 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:30:31,469 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_251a668b-a4c6-4c08-81aa-edd685ccdd41/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i[916,929] [2024-12-02 12:30:31,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:30:31,521 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:30:31,530 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_251a668b-a4c6-4c08-81aa-edd685ccdd41/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i[916,929] [2024-12-02 12:30:31,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:30:31,585 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:30:31,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:31 WrapperNode [2024-12-02 12:30:31,586 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:30:31,587 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:30:31,587 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:30:31,587 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:30:31,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:31" (1/1) ... [2024-12-02 12:30:31,606 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:31" (1/1) ... [2024-12-02 12:30:31,632 INFO L138 Inliner]: procedures = 34, calls = 133, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 407 [2024-12-02 12:30:31,632 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:30:31,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:30:31,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:30:31,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:30:31,641 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:31" (1/1) ... [2024-12-02 12:30:31,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:31" (1/1) ... [2024-12-02 12:30:31,646 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:31" (1/1) ... [2024-12-02 12:30:31,662 INFO L175 MemorySlicer]: Split 111 memory accesses to 2 slices as follows [2, 109]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 27 writes are split as follows [0, 27]. [2024-12-02 12:30:31,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:31" (1/1) ... [2024-12-02 12:30:31,662 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:31" (1/1) ... [2024-12-02 12:30:31,682 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:31" (1/1) ... [2024-12-02 12:30:31,683 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:31" (1/1) ... [2024-12-02 12:30:31,688 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:31" (1/1) ... [2024-12-02 12:30:31,690 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:31" (1/1) ... [2024-12-02 12:30:31,692 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:31" (1/1) ... [2024-12-02 12:30:31,696 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:30:31,697 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:30:31,697 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:30:31,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:30:31,698 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:31" (1/1) ... [2024-12-02 12:30:31,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:30:31,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:30:31,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:30:31,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:30:31,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:30:31,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-12-02 12:30:31,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-12-02 12:30:31,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#0 [2024-12-02 12:30:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#1 [2024-12-02 12:30:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-12-02 12:30:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-12-02 12:30:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 12:30:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 12:30:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 12:30:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 12:30:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 12:30:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 12:30:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-12-02 12:30:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-12-02 12:30:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-12-02 12:30:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-12-02 12:30:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 12:30:31,751 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 12:30:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:30:31,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:30:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 12:30:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 12:30:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 12:30:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 12:30:31,851 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:30:31,852 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:30:32,373 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-12-02 12:30:32,373 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:30:32,384 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:30:32,384 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 12:30:32,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:30:32 BoogieIcfgContainer [2024-12-02 12:30:32,385 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:30:32,386 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:30:32,386 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:30:32,390 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:30:32,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:30:31" (1/3) ... [2024-12-02 12:30:32,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735d9d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:30:32, skipping insertion in model container [2024-12-02 12:30:32,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:30:31" (2/3) ... [2024-12-02 12:30:32,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735d9d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:30:32, skipping insertion in model container [2024-12-02 12:30:32,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:30:32" (3/3) ... [2024-12-02 12:30:32,393 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-31.i [2024-12-02 12:30:32,404 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:30:32,405 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-31.i that has 2 procedures, 87 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 12:30:32,448 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:30:32,458 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;@6aa2cafd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:30:32,458 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:30:32,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 12:30:32,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 12:30:32,470 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:32,470 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:32,471 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:32,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:32,475 INFO L85 PathProgramCache]: Analyzing trace with hash -2081525877, now seen corresponding path program 1 times [2024-12-02 12:30:32,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:30:32,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651647099] [2024-12-02 12:30:32,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:32,483 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 12:30:32,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:30:32,485 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:32,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:32,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 12:30:32,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:30:32,774 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-12-02 12:30:32,775 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:30:32,775 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:30:32,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651647099] [2024-12-02 12:30:32,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651647099] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:32,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:32,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:30:32,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429708242] [2024-12-02 12:30:32,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:32,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:30:32,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:30:32,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:30:32,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:30:32,803 INFO L87 Difference]: Start difference. First operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 12:30:32,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:32,824 INFO L93 Difference]: Finished difference Result 164 states and 256 transitions. [2024-12-02 12:30:32,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:30:32,826 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2024-12-02 12:30:32,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:32,831 INFO L225 Difference]: With dead ends: 164 [2024-12-02 12:30:32,831 INFO L226 Difference]: Without dead ends: 80 [2024-12-02 12:30:32,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 93 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 12:30:32,836 INFO L435 NwaCegarLoop]: 114 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, 114 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 12:30:32,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:30:32,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-12-02 12:30:32,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-12-02 12:30:32,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 67 states have (on average 1.373134328358209) internal successors, (92), 67 states have internal predecessors, (92), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 12:30:32,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2024-12-02 12:30:32,874 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 94 [2024-12-02 12:30:32,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:32,875 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2024-12-02 12:30:32,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 12:30:32,875 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2024-12-02 12:30:32,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 12:30:32,878 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:32,879 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:32,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:33,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:33,079 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:33,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:33,080 INFO L85 PathProgramCache]: Analyzing trace with hash -532540963, now seen corresponding path program 1 times [2024-12-02 12:30:33,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:30:33,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336466980] [2024-12-02 12:30:33,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:33,081 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 12:30:33,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:30:33,083 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:33,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:33,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 12:30:33,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:30:33,332 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 12:30:33,332 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:30:33,332 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:30:33,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336466980] [2024-12-02 12:30:33,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336466980] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:33,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:33,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:30:33,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19254956] [2024-12-02 12:30:33,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:33,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:30:33,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:30:33,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:30:33,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:30:33,335 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 12:30:33,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:33,401 INFO L93 Difference]: Finished difference Result 159 states and 228 transitions. [2024-12-02 12:30:33,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:30:33,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2024-12-02 12:30:33,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:33,404 INFO L225 Difference]: With dead ends: 159 [2024-12-02 12:30:33,404 INFO L226 Difference]: Without dead ends: 82 [2024-12-02 12:30:33,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:30:33,405 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:33,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 325 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:30:33,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-12-02 12:30:33,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-12-02 12:30:33,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 69 states have internal predecessors, (94), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 12:30:33,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 116 transitions. [2024-12-02 12:30:33,416 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 116 transitions. Word has length 94 [2024-12-02 12:30:33,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:33,417 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 116 transitions. [2024-12-02 12:30:33,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 12:30:33,418 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 116 transitions. [2024-12-02 12:30:33,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 12:30:33,419 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:33,419 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:33,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:33,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:33,620 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:33,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:33,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1918744357, now seen corresponding path program 1 times [2024-12-02 12:30:33,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:30:33,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691777680] [2024-12-02 12:30:33,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:33,622 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 12:30:33,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:30:33,623 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:33,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:33,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 12:30:33,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:30:33,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 12:30:33,922 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:33,923 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:30:33,923 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:30:33,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691777680] [2024-12-02 12:30:33,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691777680] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:33,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:33,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:30:33,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162612721] [2024-12-02 12:30:33,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:33,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:30:33,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:30:33,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:30:33,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:30:33,925 INFO L87 Difference]: Start difference. First operand 82 states and 116 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:33,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:33,954 INFO L93 Difference]: Finished difference Result 161 states and 229 transitions. [2024-12-02 12:30:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:30:33,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 94 [2024-12-02 12:30:33,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:33,956 INFO L225 Difference]: With dead ends: 161 [2024-12-02 12:30:33,957 INFO L226 Difference]: Without dead ends: 82 [2024-12-02 12:30:33,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 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 12:30:33,958 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:33,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:30:33,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-12-02 12:30:33,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-12-02 12:30:33,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 69 states have (on average 1.3478260869565217) internal successors, (93), 69 states have internal predecessors, (93), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 12:30:33,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 115 transitions. [2024-12-02 12:30:33,967 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 115 transitions. Word has length 94 [2024-12-02 12:30:33,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:33,968 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 115 transitions. [2024-12-02 12:30:33,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:33,968 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 115 transitions. [2024-12-02 12:30:33,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 12:30:33,969 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:33,970 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:33,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:34,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:34,170 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:34,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:34,171 INFO L85 PathProgramCache]: Analyzing trace with hash 787875037, now seen corresponding path program 1 times [2024-12-02 12:30:34,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:30:34,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494273089] [2024-12-02 12:30:34,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:34,172 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 12:30:34,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:30:34,174 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:34,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:34,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 12:30:34,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:30:34,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 12:30:34,593 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:34,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 33 [2024-12-02 12:30:34,697 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:34,698 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:30:34,698 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:30:34,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494273089] [2024-12-02 12:30:34,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494273089] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:34,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:34,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:30:34,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229339137] [2024-12-02 12:30:34,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:34,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:30:34,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:30:34,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:30:34,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:30:34,699 INFO L87 Difference]: Start difference. First operand 82 states and 115 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:35,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:35,339 INFO L93 Difference]: Finished difference Result 203 states and 283 transitions. [2024-12-02 12:30:35,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:30:35,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 94 [2024-12-02 12:30:35,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:35,341 INFO L225 Difference]: With dead ends: 203 [2024-12-02 12:30:35,341 INFO L226 Difference]: Without dead ends: 124 [2024-12-02 12:30:35,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:30:35,342 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 52 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:35,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 359 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:30:35,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-12-02 12:30:35,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 121. [2024-12-02 12:30:35,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 105 states have (on average 1.3523809523809525) internal successors, (142), 106 states have internal predecessors, (142), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 12:30:35,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 168 transitions. [2024-12-02 12:30:35,354 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 168 transitions. Word has length 94 [2024-12-02 12:30:35,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:35,354 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 168 transitions. [2024-12-02 12:30:35,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:35,355 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 168 transitions. [2024-12-02 12:30:35,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 12:30:35,356 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:35,356 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:35,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:35,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:35,557 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:35,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:35,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1840859288, now seen corresponding path program 1 times [2024-12-02 12:30:35,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:30:35,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807331941] [2024-12-02 12:30:35,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:35,558 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 12:30:35,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:30:35,560 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:35,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:35,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 12:30:35,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:30:35,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 12:30:35,798 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:35,799 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:30:35,799 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:30:35,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807331941] [2024-12-02 12:30:35,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807331941] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:35,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:35,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:30:35,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060942420] [2024-12-02 12:30:35,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:35,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:30:35,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:30:35,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:30:35,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:30:35,800 INFO L87 Difference]: Start difference. First operand 121 states and 168 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:35,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:35,833 INFO L93 Difference]: Finished difference Result 239 states and 333 transitions. [2024-12-02 12:30:35,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:30:35,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-12-02 12:30:35,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:35,836 INFO L225 Difference]: With dead ends: 239 [2024-12-02 12:30:35,836 INFO L226 Difference]: Without dead ends: 121 [2024-12-02 12:30:35,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 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 12:30:35,837 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:35,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 218 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:30:35,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-12-02 12:30:35,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-12-02 12:30:35,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 105 states have (on average 1.3333333333333333) internal successors, (140), 106 states have internal predecessors, (140), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 12:30:35,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 166 transitions. [2024-12-02 12:30:35,849 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 166 transitions. Word has length 96 [2024-12-02 12:30:35,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:35,849 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 166 transitions. [2024-12-02 12:30:35,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:35,849 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 166 transitions. [2024-12-02 12:30:35,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 12:30:35,851 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:35,851 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:35,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:36,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:36,052 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:36,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:36,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1447832278, now seen corresponding path program 1 times [2024-12-02 12:30:36,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:30:36,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023187222] [2024-12-02 12:30:36,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:36,053 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 12:30:36,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:30:36,054 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:36,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:36,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 12:30:36,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:30:36,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 12:30:36,391 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:36,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 33 [2024-12-02 12:30:36,426 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:36,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 36 [2024-12-02 12:30:36,454 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:36,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 50 [2024-12-02 12:30:36,769 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:36,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 52 [2024-12-02 12:30:36,821 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:36,821 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:30:36,822 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:30:36,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023187222] [2024-12-02 12:30:36,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023187222] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:36,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:36,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:30:36,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414141857] [2024-12-02 12:30:36,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:36,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:30:36,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:30:36,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:30:36,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:30:36,823 INFO L87 Difference]: Start difference. First operand 121 states and 166 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:38,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:38,426 INFO L93 Difference]: Finished difference Result 256 states and 348 transitions. [2024-12-02 12:30:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 12:30:38,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-12-02 12:30:38,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:38,427 INFO L225 Difference]: With dead ends: 256 [2024-12-02 12:30:38,427 INFO L226 Difference]: Without dead ends: 138 [2024-12-02 12:30:38,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:30:38,428 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 121 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:38,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 476 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 12:30:38,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-12-02 12:30:38,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 97. [2024-12-02 12:30:38,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 81 states have (on average 1.2962962962962963) internal successors, (105), 82 states have internal predecessors, (105), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 12:30:38,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 131 transitions. [2024-12-02 12:30:38,436 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 131 transitions. Word has length 96 [2024-12-02 12:30:38,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:38,436 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 131 transitions. [2024-12-02 12:30:38,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:38,436 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 131 transitions. [2024-12-02 12:30:38,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 12:30:38,437 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:38,437 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:38,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:38,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:38,638 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:38,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:38,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1073875101, now seen corresponding path program 1 times [2024-12-02 12:30:38,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:30:38,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928059701] [2024-12-02 12:30:38,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:38,639 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 12:30:38,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:30:38,640 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:38,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-12-02 12:30:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:38,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 12:30:38,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:30:38,850 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:38,850 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:30:38,850 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:30:38,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928059701] [2024-12-02 12:30:38,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928059701] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:38,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:38,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:30:38,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315105435] [2024-12-02 12:30:38,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:38,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:30:38,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:30:38,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:30:38,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:30:38,852 INFO L87 Difference]: Start difference. First operand 97 states and 131 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:38,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:38,873 INFO L93 Difference]: Finished difference Result 187 states and 254 transitions. [2024-12-02 12:30:38,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:30:38,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-12-02 12:30:38,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:38,875 INFO L225 Difference]: With dead ends: 187 [2024-12-02 12:30:38,875 INFO L226 Difference]: Without dead ends: 98 [2024-12-02 12:30:38,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 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 12:30:38,876 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:38,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:30:38,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-12-02 12:30:38,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-12-02 12:30:38,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 82 states have (on average 1.2926829268292683) internal successors, (106), 83 states have internal predecessors, (106), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 12:30:38,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 132 transitions. [2024-12-02 12:30:38,887 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 132 transitions. Word has length 96 [2024-12-02 12:30:38,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:38,888 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 132 transitions. [2024-12-02 12:30:38,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:38,888 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 132 transitions. [2024-12-02 12:30:38,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 12:30:38,889 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:38,889 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:38,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-12-02 12:30:39,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:39,093 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:39,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:39,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1660681115, now seen corresponding path program 1 times [2024-12-02 12:30:39,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:30:39,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126470729] [2024-12-02 12:30:39,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:39,094 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 12:30:39,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:30:39,095 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:39,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:39,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 12:30:39,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:30:39,331 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:39,332 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:30:39,332 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:30:39,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126470729] [2024-12-02 12:30:39,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126470729] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:39,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:39,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:30:39,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879283305] [2024-12-02 12:30:39,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:39,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:30:39,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:30:39,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:30:39,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:30:39,333 INFO L87 Difference]: Start difference. First operand 98 states and 132 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:39,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:39,678 INFO L93 Difference]: Finished difference Result 220 states and 296 transitions. [2024-12-02 12:30:39,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:30:39,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-12-02 12:30:39,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:39,680 INFO L225 Difference]: With dead ends: 220 [2024-12-02 12:30:39,680 INFO L226 Difference]: Without dead ends: 130 [2024-12-02 12:30:39,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:30:39,681 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 44 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:39,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 397 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:30:39,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-12-02 12:30:39,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 98. [2024-12-02 12:30:39,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 82 states have (on average 1.2804878048780488) internal successors, (105), 83 states have internal predecessors, (105), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 12:30:39,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 131 transitions. [2024-12-02 12:30:39,688 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 131 transitions. Word has length 96 [2024-12-02 12:30:39,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:39,688 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 131 transitions. [2024-12-02 12:30:39,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:39,689 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 131 transitions. [2024-12-02 12:30:39,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 12:30:39,690 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:39,690 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:39,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:39,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:39,891 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:39,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:39,891 INFO L85 PathProgramCache]: Analyzing trace with hash 299377833, now seen corresponding path program 1 times [2024-12-02 12:30:39,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:30:39,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892452056] [2024-12-02 12:30:39,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:39,892 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 12:30:39,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:30:39,894 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:39,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:40,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 12:30:40,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:30:40,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 12:30:40,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 12:30:40,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 12:30:40,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 12:30:40,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-12-02 12:30:40,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:40,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 28 [2024-12-02 12:30:40,463 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:40,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 39 [2024-12-02 12:30:40,531 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:40,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 66 [2024-12-02 12:30:40,621 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:40,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 90 treesize of output 69 [2024-12-02 12:30:40,790 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:40,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 101 treesize of output 88 [2024-12-02 12:30:40,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:40,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 101 treesize of output 49 [2024-12-02 12:30:41,016 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 120 proven. 27 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-12-02 12:30:41,016 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:30:41,147 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:41,147 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:30:41,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892452056] [2024-12-02 12:30:41,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892452056] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 12:30:41,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:30:41,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-12-02 12:30:41,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689395801] [2024-12-02 12:30:41,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:41,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:30:41,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:30:41,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:30:41,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-12-02 12:30:41,148 INFO L87 Difference]: Start difference. First operand 98 states and 131 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:41,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:41,504 INFO L93 Difference]: Finished difference Result 213 states and 283 transitions. [2024-12-02 12:30:41,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:30:41,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 97 [2024-12-02 12:30:41,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:41,505 INFO L225 Difference]: With dead ends: 213 [2024-12-02 12:30:41,505 INFO L226 Difference]: Without dead ends: 123 [2024-12-02 12:30:41,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:30:41,506 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 34 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:41,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 313 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:30:41,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-12-02 12:30:41,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 98. [2024-12-02 12:30:41,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 82 states have (on average 1.2682926829268293) internal successors, (104), 83 states have internal predecessors, (104), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 12:30:41,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 130 transitions. [2024-12-02 12:30:41,515 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 130 transitions. Word has length 97 [2024-12-02 12:30:41,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:41,515 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 130 transitions. [2024-12-02 12:30:41,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:41,515 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 130 transitions. [2024-12-02 12:30:41,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-12-02 12:30:41,516 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:41,516 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:41,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:41,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:41,717 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:41,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:41,717 INFO L85 PathProgramCache]: Analyzing trace with hash -2015358015, now seen corresponding path program 1 times [2024-12-02 12:30:41,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:30:41,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088634492] [2024-12-02 12:30:41,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:41,718 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 12:30:41,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:30:41,719 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:41,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:30:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:42,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 12:30:42,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:30:42,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 12:30:42,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2024-12-02 12:30:42,036 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:42,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 47 [2024-12-02 12:30:42,076 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:42,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 70 [2024-12-02 12:30:44,499 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:44,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 96 treesize of output 92 [2024-12-02 12:30:44,941 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:30:44,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 142 treesize of output 60 [2024-12-02 12:30:44,987 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:30:44,987 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:30:44,987 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:30:44,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088634492] [2024-12-02 12:30:44,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1088634492] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:44,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:44,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:30:44,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823775239] [2024-12-02 12:30:44,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:44,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:30:44,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:30:44,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:30:44,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=50, Unknown=1, NotChecked=0, Total=72 [2024-12-02 12:30:44,989 INFO L87 Difference]: Start difference. First operand 98 states and 130 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:30:48,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:30:52,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:30:55,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:30:57,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:31:01,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.81s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:31:04,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:31:06,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:31:06,860 INFO L93 Difference]: Finished difference Result 301 states and 395 transitions. [2024-12-02 12:31:06,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:31:06,861 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 98 [2024-12-02 12:31:06,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:31:06,862 INFO L225 Difference]: With dead ends: 301 [2024-12-02 12:31:06,862 INFO L226 Difference]: Without dead ends: 211 [2024-12-02 12:31:06,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=63, Invalid=146, Unknown=1, NotChecked=0, Total=210 [2024-12-02 12:31:06,863 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 236 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 28 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:31:06,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 520 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 343 Invalid, 6 Unknown, 0 Unchecked, 21.5s Time] [2024-12-02 12:31:06,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-12-02 12:31:06,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 172. [2024-12-02 12:31:06,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 146 states have (on average 1.273972602739726) internal successors, (186), 148 states have internal predecessors, (186), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 19 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 12:31:06,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 228 transitions. [2024-12-02 12:31:06,876 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 228 transitions. Word has length 98 [2024-12-02 12:31:06,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:31:06,876 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 228 transitions. [2024-12-02 12:31:06,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:31:06,876 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 228 transitions. [2024-12-02 12:31:06,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 12:31:06,877 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:31:06,877 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:06,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:31:07,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:31:07,078 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:31:07,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:31:07,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1087608865, now seen corresponding path program 1 times [2024-12-02 12:31:07,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:31:07,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638413487] [2024-12-02 12:31:07,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:31:07,079 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 12:31:07,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:31:07,080 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:31:07,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 (12)] Waiting until timeout for monitored process [2024-12-02 12:31:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:31:07,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:31:07,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:31:07,297 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:31:07,297 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:31:07,297 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:31:07,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638413487] [2024-12-02 12:31:07,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638413487] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:31:07,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:31:07,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:31:07,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354124865] [2024-12-02 12:31:07,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:31:07,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:31:07,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:31:07,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:31:07,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:31:07,299 INFO L87 Difference]: Start difference. First operand 172 states and 228 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:31:07,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:31:07,678 INFO L93 Difference]: Finished difference Result 439 states and 576 transitions. [2024-12-02 12:31:07,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:31:07,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-12-02 12:31:07,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:31:07,680 INFO L225 Difference]: With dead ends: 439 [2024-12-02 12:31:07,680 INFO L226 Difference]: Without dead ends: 275 [2024-12-02 12:31:07,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:31:07,681 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 55 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:31:07,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 340 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:31:07,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-12-02 12:31:07,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 271. [2024-12-02 12:31:07,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 233 states have (on average 1.2489270386266094) internal successors, (291), 237 states have internal predecessors, (291), 29 states have call successors, (29), 8 states have call predecessors, (29), 8 states have return successors, (29), 25 states have call predecessors, (29), 29 states have call successors, (29) [2024-12-02 12:31:07,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 349 transitions. [2024-12-02 12:31:07,711 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 349 transitions. Word has length 99 [2024-12-02 12:31:07,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:31:07,711 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 349 transitions. [2024-12-02 12:31:07,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:31:07,711 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 349 transitions. [2024-12-02 12:31:07,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 12:31:07,712 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:31:07,712 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:07,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 (12)] Ended with exit code 0 [2024-12-02 12:31:07,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:31:07,913 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:31:07,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:31:07,913 INFO L85 PathProgramCache]: Analyzing trace with hash 758968289, now seen corresponding path program 1 times [2024-12-02 12:31:07,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:31:07,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633357307] [2024-12-02 12:31:07,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:31:07,914 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 12:31:07,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:31:07,915 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:31:07,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 (13)] Waiting until timeout for monitored process [2024-12-02 12:31:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:31:08,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 12:31:08,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:31:08,104 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:31:08,104 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:31:08,104 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:31:08,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [633357307] [2024-12-02 12:31:08,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [633357307] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:31:08,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:31:08,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:31:08,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601938580] [2024-12-02 12:31:08,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:31:08,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:31:08,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:31:08,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:31:08,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:31:08,105 INFO L87 Difference]: Start difference. First operand 271 states and 349 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:31:08,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:31:08,142 INFO L93 Difference]: Finished difference Result 536 states and 690 transitions. [2024-12-02 12:31:08,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:31:08,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-12-02 12:31:08,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:31:08,145 INFO L225 Difference]: With dead ends: 536 [2024-12-02 12:31:08,145 INFO L226 Difference]: Without dead ends: 273 [2024-12-02 12:31:08,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:31:08,146 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:31:08,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 426 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:31:08,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-12-02 12:31:08,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 269. [2024-12-02 12:31:08,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 231 states have (on average 1.2337662337662338) internal successors, (285), 235 states have internal predecessors, (285), 29 states have call successors, (29), 8 states have call predecessors, (29), 8 states have return successors, (29), 25 states have call predecessors, (29), 29 states have call successors, (29) [2024-12-02 12:31:08,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 343 transitions. [2024-12-02 12:31:08,177 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 343 transitions. Word has length 99 [2024-12-02 12:31:08,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:31:08,178 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 343 transitions. [2024-12-02 12:31:08,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:31:08,178 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 343 transitions. [2024-12-02 12:31:08,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 12:31:08,179 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:31:08,179 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:08,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 (13)] Ended with exit code 0 [2024-12-02 12:31:08,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:31:08,380 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:31:08,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:31:08,380 INFO L85 PathProgramCache]: Analyzing trace with hash -597942175, now seen corresponding path program 1 times [2024-12-02 12:31:08,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:31:08,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172065518] [2024-12-02 12:31:08,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:31:08,380 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 12:31:08,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:31:08,382 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:31:08,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 (14)] Waiting until timeout for monitored process [2024-12-02 12:31:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:31:08,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 12:31:08,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:31:08,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 12:31:08,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2024-12-02 12:31:08,669 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:31:08,669 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:31:08,669 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:31:08,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172065518] [2024-12-02 12:31:08,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172065518] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:31:08,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:31:08,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:31:08,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955065330] [2024-12-02 12:31:08,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:31:08,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:31:08,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:31:08,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:31:08,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:31:08,671 INFO L87 Difference]: Start difference. First operand 269 states and 343 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:31:09,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:31:09,056 INFO L93 Difference]: Finished difference Result 623 states and 790 transitions. [2024-12-02 12:31:09,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:31:09,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-12-02 12:31:09,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:31:09,058 INFO L225 Difference]: With dead ends: 623 [2024-12-02 12:31:09,058 INFO L226 Difference]: Without dead ends: 362 [2024-12-02 12:31:09,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:31:09,059 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 44 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:31:09,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 579 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:31:09,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-12-02 12:31:09,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 277. [2024-12-02 12:31:09,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 239 states have (on average 1.2426778242677825) internal successors, (297), 243 states have internal predecessors, (297), 29 states have call successors, (29), 8 states have call predecessors, (29), 8 states have return successors, (29), 25 states have call predecessors, (29), 29 states have call successors, (29) [2024-12-02 12:31:09,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 355 transitions. [2024-12-02 12:31:09,075 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 355 transitions. Word has length 99 [2024-12-02 12:31:09,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:31:09,075 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 355 transitions. [2024-12-02 12:31:09,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:31:09,075 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 355 transitions. [2024-12-02 12:31:09,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 12:31:09,076 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:31:09,076 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:09,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 (14)] Ended with exit code 0 [2024-12-02 12:31:09,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:31:09,276 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:31:09,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:31:09,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1619010529, now seen corresponding path program 1 times [2024-12-02 12:31:09,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:31:09,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131499556] [2024-12-02 12:31:09,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:31:09,277 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 12:31:09,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:31:09,278 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:31:09,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 (15)] Waiting until timeout for monitored process [2024-12-02 12:31:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:31:09,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 12:31:09,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:31:09,512 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:31:09,512 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:31:09,512 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:31:09,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131499556] [2024-12-02 12:31:09,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131499556] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:31:09,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:31:09,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:31:09,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031498241] [2024-12-02 12:31:09,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:31:09,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:31:09,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:31:09,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:31:09,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:31:09,513 INFO L87 Difference]: Start difference. First operand 277 states and 355 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:31:09,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:31:09,931 INFO L93 Difference]: Finished difference Result 616 states and 780 transitions. [2024-12-02 12:31:09,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:31:09,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-12-02 12:31:09,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:31:09,933 INFO L225 Difference]: With dead ends: 616 [2024-12-02 12:31:09,933 INFO L226 Difference]: Without dead ends: 347 [2024-12-02 12:31:09,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:31:09,934 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 46 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:31:09,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 371 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:31:09,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-12-02 12:31:09,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 260. [2024-12-02 12:31:09,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 224 states have (on average 1.2321428571428572) internal successors, (276), 227 states have internal predecessors, (276), 27 states have call successors, (27), 8 states have call predecessors, (27), 8 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2024-12-02 12:31:09,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 330 transitions. [2024-12-02 12:31:09,953 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 330 transitions. Word has length 99 [2024-12-02 12:31:09,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:31:09,953 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 330 transitions. [2024-12-02 12:31:09,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:31:09,953 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 330 transitions. [2024-12-02 12:31:09,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 12:31:09,954 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:31:09,954 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:09,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 (15)] Ended with exit code 0 [2024-12-02 12:31:10,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:31:10,154 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:31:10,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:31:10,155 INFO L85 PathProgramCache]: Analyzing trace with hash 122883806, now seen corresponding path program 1 times [2024-12-02 12:31:10,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:31:10,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [755168370] [2024-12-02 12:31:10,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:31:10,155 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 12:31:10,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:31:10,156 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:31:10,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 (16)] Waiting until timeout for monitored process [2024-12-02 12:31:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:31:10,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 12:31:10,458 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:31:10,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 68 [2024-12-02 12:31:10,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 100 [2024-12-02 12:31:10,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 12:31:10,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 12:31:10,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 12:31:10,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 12:31:10,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2024-12-02 12:31:13,805 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:31:13,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 64 [2024-12-02 12:31:13,985 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:31:13,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 89 treesize of output 77 [2024-12-02 12:31:18,197 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:31:18,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 104 treesize of output 94 [2024-12-02 12:31:18,837 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:31:18,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 118 treesize of output 42 [2024-12-02 12:31:18,899 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 106 proven. 24 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-12-02 12:31:18,899 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:31:19,799 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:31:19,799 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:31:19,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [755168370] [2024-12-02 12:31:19,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [755168370] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 12:31:19,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:31:19,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 18 [2024-12-02 12:31:19,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25302881] [2024-12-02 12:31:19,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:31:19,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:31:19,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:31:19,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:31:19,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=232, Unknown=2, NotChecked=0, Total=306 [2024-12-02 12:31:19,801 INFO L87 Difference]: Start difference. First operand 260 states and 330 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:31:24,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:31:28,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:31:32,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:31:36,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:31:41,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:31:45,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:31:49,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:31:53,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:31:54,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:31:54,037 INFO L93 Difference]: Finished difference Result 584 states and 741 transitions. [2024-12-02 12:31:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:31:54,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-12-02 12:31:54,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:31:54,042 INFO L225 Difference]: With dead ends: 584 [2024-12-02 12:31:54,042 INFO L226 Difference]: Without dead ends: 327 [2024-12-02 12:31:54,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=77, Invalid=263, Unknown=2, NotChecked=0, Total=342 [2024-12-02 12:31:54,043 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 80 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:31:54,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 308 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 8 Unknown, 0 Unchecked, 34.1s Time] [2024-12-02 12:31:54,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-12-02 12:31:54,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 291. [2024-12-02 12:31:54,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 255 states have (on average 1.219607843137255) internal successors, (311), 258 states have internal predecessors, (311), 27 states have call successors, (27), 8 states have call predecessors, (27), 8 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2024-12-02 12:31:54,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 365 transitions. [2024-12-02 12:31:54,072 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 365 transitions. Word has length 99 [2024-12-02 12:31:54,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:31:54,072 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 365 transitions. [2024-12-02 12:31:54,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:31:54,072 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 365 transitions. [2024-12-02 12:31:54,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 12:31:54,073 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:31:54,073 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:54,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 (16)] Ended with exit code 0 [2024-12-02 12:31:54,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:31:54,274 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:31:54,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:31:54,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1750032719, now seen corresponding path program 1 times [2024-12-02 12:31:54,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:31:54,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917258727] [2024-12-02 12:31:54,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:31:54,274 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 12:31:54,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:31:54,276 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:31:54,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 (17)] Waiting until timeout for monitored process [2024-12-02 12:31:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:31:54,478 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 12:31:54,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:31:54,503 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:31:54,503 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:31:54,503 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:31:54,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917258727] [2024-12-02 12:31:54,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917258727] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:31:54,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:31:54,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 12:31:54,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132392564] [2024-12-02 12:31:54,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:31:54,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:31:54,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:31:54,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:31:54,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:31:54,504 INFO L87 Difference]: Start difference. First operand 291 states and 365 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:31:54,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:31:54,563 INFO L93 Difference]: Finished difference Result 585 states and 735 transitions. [2024-12-02 12:31:54,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:31:54,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 100 [2024-12-02 12:31:54,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:31:54,565 INFO L225 Difference]: With dead ends: 585 [2024-12-02 12:31:54,565 INFO L226 Difference]: Without dead ends: 297 [2024-12-02 12:31:54,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:31:54,566 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:31:54,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 522 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:31:54,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-12-02 12:31:54,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 291. [2024-12-02 12:31:54,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 255 states have (on average 1.2117647058823529) internal successors, (309), 258 states have internal predecessors, (309), 27 states have call successors, (27), 8 states have call predecessors, (27), 8 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2024-12-02 12:31:54,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 363 transitions. [2024-12-02 12:31:54,581 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 363 transitions. Word has length 100 [2024-12-02 12:31:54,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:31:54,581 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 363 transitions. [2024-12-02 12:31:54,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:31:54,581 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 363 transitions. [2024-12-02 12:31:54,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 12:31:54,582 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:31:54,582 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:54,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 (17)] Ended with exit code 0 [2024-12-02 12:31:54,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:31:54,782 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:31:54,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:31:54,782 INFO L85 PathProgramCache]: Analyzing trace with hash 125932902, now seen corresponding path program 1 times [2024-12-02 12:31:54,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:31:54,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1913086073] [2024-12-02 12:31:54,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:31:54,783 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 12:31:54,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:31:54,784 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:31:54,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 (18)] Waiting until timeout for monitored process [2024-12-02 12:31:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:31:55,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 12:31:55,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:31:55,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 1 [2024-12-02 12:31:55,542 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:31:55,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 134 treesize of output 79 [2024-12-02 12:31:55,633 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:31:55,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 160 treesize of output 105 [2024-12-02 12:31:55,761 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:31:55,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 233 treesize of output 149 [2024-12-02 12:31:55,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:31:55,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 263 treesize of output 169 [2024-12-02 12:31:57,190 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:31:57,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 467 treesize of output 157 [2024-12-02 12:31:57,379 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 12:31:57,379 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:31:57,831 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:31:57,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1913086073] [2024-12-02 12:31:57,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1913086073] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:31:57,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1105490407] [2024-12-02 12:31:57,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:31:57,831 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 12:31:57,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 12:31:57,837 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 12:31:57,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-12-02 12:31:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:31:59,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 12:31:59,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:31:59,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 12:32:00,402 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:32:00,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 79 [2024-12-02 12:32:00,625 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:32:00,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 124 treesize of output 107 [2024-12-02 12:32:00,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:32:00,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 113 treesize of output 103 [2024-12-02 12:32:01,507 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:32:01,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 126 [2024-12-02 12:32:03,993 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:32:03,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 261 treesize of output 113 [2024-12-02 12:32:04,027 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 12:32:04,028 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:32:04,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1105490407] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:32:04,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:32:04,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 23 [2024-12-02 12:32:04,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439787817] [2024-12-02 12:32:04,262 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:32:04,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 12:32:04,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:32:04,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 12:32:04,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=693, Unknown=0, NotChecked=0, Total=812 [2024-12-02 12:32:04,263 INFO L87 Difference]: Start difference. First operand 291 states and 363 transitions. Second operand has 24 states, 24 states have (on average 4.041666666666667) internal successors, (97), 23 states have internal predecessors, (97), 4 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-12-02 12:32:19,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:32:19,786 INFO L93 Difference]: Finished difference Result 713 states and 880 transitions. [2024-12-02 12:32:19,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 12:32:19,787 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.041666666666667) internal successors, (97), 23 states have internal predecessors, (97), 4 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 100 [2024-12-02 12:32:19,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:32:19,789 INFO L225 Difference]: With dead ends: 713 [2024-12-02 12:32:19,789 INFO L226 Difference]: Without dead ends: 711 [2024-12-02 12:32:19,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 226 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=385, Invalid=1595, Unknown=0, NotChecked=0, Total=1980 [2024-12-02 12:32:19,790 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 584 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:32:19,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 788 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2024-12-02 12:32:19,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-12-02 12:32:19,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 624. [2024-12-02 12:32:19,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 553 states have (on average 1.2079566003616637) internal successors, (668), 560 states have internal predecessors, (668), 54 states have call successors, (54), 16 states have call predecessors, (54), 16 states have return successors, (54), 47 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 12:32:19,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 776 transitions. [2024-12-02 12:32:19,832 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 776 transitions. Word has length 100 [2024-12-02 12:32:19,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:32:19,832 INFO L471 AbstractCegarLoop]: Abstraction has 624 states and 776 transitions. [2024-12-02 12:32:19,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.041666666666667) internal successors, (97), 23 states have internal predecessors, (97), 4 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-12-02 12:32:19,832 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 776 transitions. [2024-12-02 12:32:19,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 12:32:19,833 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:32:19,833 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:19,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 (18)] Ended with exit code 0 [2024-12-02 12:32:20,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-12-02 12:32:20,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 12:32:20,234 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:32:20,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:32:20,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1425886408, now seen corresponding path program 1 times [2024-12-02 12:32:20,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:32:20,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568375941] [2024-12-02 12:32:20,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:32:20,235 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 12:32:20,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:32:20,236 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 12:32:20,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251a668b-a4c6-4c08-81aa-edd685ccdd41/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 (20)] Waiting until timeout for monitored process [2024-12-02 12:32:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:32:20,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-12-02 12:32:20,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:32:20,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 68 [2024-12-02 12:32:20,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 110 [2024-12-02 12:32:21,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 106 [2024-12-02 12:32:22,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 230 treesize of output 197 [2024-12-02 12:32:24,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 331 treesize of output 288 [2024-12-02 12:32:27,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 332 treesize of output 287 [2024-12-02 12:32:31,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 331 treesize of output 292 [2024-12-02 12:32:44,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 302 [2024-12-02 12:32:46,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 378 treesize of output 327 [2024-12-02 12:32:57,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 361 treesize of output 316 [2024-12-02 12:32:58,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 394 treesize of output 350 [2024-12-02 12:32:59,788 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 39 proven. 155 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-02 12:32:59,788 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:33:02,607 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 12:33:02,607 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:33:02,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568375941] [2024-12-02 12:33:02,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568375941] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 12:33:02,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:33:02,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 25 [2024-12-02 12:33:02,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977554829] [2024-12-02 12:33:02,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:33:02,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:33:02,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:33:02,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:33:02,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=495, Unknown=2, NotChecked=0, Total=600 [2024-12-02 12:33:02,608 INFO L87 Difference]: Start difference. First operand 624 states and 776 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 12:33:08,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:33:12,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:33:16,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:33:20,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:33:24,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:33:28,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:33:32,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:33:37,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:33:41,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:33:45,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []