./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.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_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 6af22983044ba27ae435cb0dcfcd33ee0fc69f0bc5638fc1b6ee52bc6b6af1dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 09:01:09,974 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 09:01:10,034 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 09:01:10,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 09:01:10,040 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 09:01:10,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 09:01:10,064 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 09:01:10,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 09:01:10,064 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 09:01:10,065 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 09:01:10,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 09:01:10,065 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 09:01:10,065 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 09:01:10,065 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 09:01:10,065 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 09:01:10,065 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 09:01:10,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 09:01:10,066 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 09:01:10,066 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 09:01:10,066 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 09:01:10,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 09:01:10,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 09:01:10,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 09:01:10,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 09:01:10,066 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 09:01:10,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 09:01:10,066 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 09:01:10,066 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 09:01:10,066 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 09:01:10,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:01:10,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:01:10,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:01:10,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:01:10,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 09:01:10,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:01:10,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:01:10,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:01:10,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:01:10,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 09:01:10,067 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 09:01:10,068 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 09:01:10,068 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 09:01:10,068 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 09:01:10,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 09:01:10,068 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 09:01:10,068 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 09:01:10,068 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 09:01:10,068 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 09:01:10,068 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_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 -> 6af22983044ba27ae435cb0dcfcd33ee0fc69f0bc5638fc1b6ee52bc6b6af1dd [2024-12-02 09:01:10,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 09:01:10,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 09:01:10,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 09:01:10,328 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 09:01:10,328 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 09:01:10,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i [2024-12-02 09:01:13,104 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/data/21932ebff/368c517e231942f2b4082f2ede13aa57/FLAG1989b2b48 [2024-12-02 09:01:13,322 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 09:01:13,323 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i [2024-12-02 09:01:13,332 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/data/21932ebff/368c517e231942f2b4082f2ede13aa57/FLAG1989b2b48 [2024-12-02 09:01:13,350 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/data/21932ebff/368c517e231942f2b4082f2ede13aa57 [2024-12-02 09:01:13,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 09:01:13,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 09:01:13,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 09:01:13,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 09:01:13,361 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 09:01:13,362 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:01:13" (1/1) ... [2024-12-02 09:01:13,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f6fe99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:13, skipping insertion in model container [2024-12-02 09:01:13,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:01:13" (1/1) ... [2024-12-02 09:01:13,382 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 09:01:13,527 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_b07f57bc-894a-466d-8662-2b9f019fe2c4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i[916,929] [2024-12-02 09:01:13,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:01:13,594 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 09:01:13,605 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_b07f57bc-894a-466d-8662-2b9f019fe2c4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i[916,929] [2024-12-02 09:01:13,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:01:13,667 INFO L204 MainTranslator]: Completed translation [2024-12-02 09:01:13,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:13 WrapperNode [2024-12-02 09:01:13,668 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 09:01:13,669 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 09:01:13,669 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 09:01:13,669 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 09:01:13,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:13" (1/1) ... [2024-12-02 09:01:13,689 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:13" (1/1) ... [2024-12-02 09:01:13,725 INFO L138 Inliner]: procedures = 30, calls = 176, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 496 [2024-12-02 09:01:13,725 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 09:01:13,726 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 09:01:13,726 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 09:01:13,726 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 09:01:13,734 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:13" (1/1) ... [2024-12-02 09:01:13,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:13" (1/1) ... [2024-12-02 09:01:13,740 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:13" (1/1) ... [2024-12-02 09:01:13,747 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-12-02 09:01:13,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:13" (1/1) ... [2024-12-02 09:01:13,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:13" (1/1) ... [2024-12-02 09:01:13,765 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:13" (1/1) ... [2024-12-02 09:01:13,766 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:13" (1/1) ... [2024-12-02 09:01:13,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:13" (1/1) ... [2024-12-02 09:01:13,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:13" (1/1) ... [2024-12-02 09:01:13,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:13" (1/1) ... [2024-12-02 09:01:13,780 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 09:01:13,781 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 09:01:13,781 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 09:01:13,781 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 09:01:13,782 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:13" (1/1) ... [2024-12-02 09:01:13,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:01:13,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:01:13,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 09:01:13,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 09:01:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 09:01:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-12-02 09:01:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-12-02 09:01:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 09:01:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-12-02 09:01:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-12-02 09:01:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 09:01:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 09:01:13,842 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 09:01:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 09:01:13,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 09:01:13,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 09:01:13,955 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 09:01:13,957 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 09:01:14,593 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-12-02 09:01:14,593 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 09:01:14,605 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 09:01:14,606 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 09:01:14,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:01:14 BoogieIcfgContainer [2024-12-02 09:01:14,606 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 09:01:14,609 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 09:01:14,609 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 09:01:14,613 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 09:01:14,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:01:13" (1/3) ... [2024-12-02 09:01:14,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b52e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:01:14, skipping insertion in model container [2024-12-02 09:01:14,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:13" (2/3) ... [2024-12-02 09:01:14,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b52e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:01:14, skipping insertion in model container [2024-12-02 09:01:14,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:01:14" (3/3) ... [2024-12-02 09:01:14,616 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-48.i [2024-12-02 09:01:14,631 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 09:01:14,632 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-48.i that has 2 procedures, 118 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 09:01:14,688 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 09:01:14,698 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;@3c92db59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 09:01:14,698 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 09:01:14,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 95 states have internal predecessors, (131), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 09:01:14,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 09:01:14,712 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:14,712 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:14,713 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:14,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:14,717 INFO L85 PathProgramCache]: Analyzing trace with hash 667391828, now seen corresponding path program 1 times [2024-12-02 09:01:14,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:14,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141614117] [2024-12-02 09:01:14,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:14,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:15,061 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2024-12-02 09:01:15,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:15,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141614117] [2024-12-02 09:01:15,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141614117] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:01:15,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293855146] [2024-12-02 09:01:15,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:15,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:15,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:01:15,065 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:01:15,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 09:01:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:15,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 09:01:15,367 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:15,389 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2024-12-02 09:01:15,390 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:01:15,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293855146] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:15,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:01:15,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 09:01:15,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898867812] [2024-12-02 09:01:15,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:15,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 09:01:15,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:15,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 09:01:15,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 09:01:15,419 INFO L87 Difference]: Start difference. First operand has 118 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 95 states have internal predecessors, (131), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:01:15,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:15,448 INFO L93 Difference]: Finished difference Result 229 states and 361 transitions. [2024-12-02 09:01:15,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 09:01:15,449 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 168 [2024-12-02 09:01:15,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:15,455 INFO L225 Difference]: With dead ends: 229 [2024-12-02 09:01:15,455 INFO L226 Difference]: Without dead ends: 114 [2024-12-02 09:01:15,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 169 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 09:01:15,460 INFO L435 NwaCegarLoop]: 164 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, 164 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 09:01:15,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:15,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-12-02 09:01:15,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-12-02 09:01:15,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 91 states have (on average 1.3406593406593406) internal successors, (122), 91 states have internal predecessors, (122), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 09:01:15,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 164 transitions. [2024-12-02 09:01:15,494 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 164 transitions. Word has length 168 [2024-12-02 09:01:15,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:15,494 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 164 transitions. [2024-12-02 09:01:15,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:01:15,494 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 164 transitions. [2024-12-02 09:01:15,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 09:01:15,496 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:15,496 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:15,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 09:01:15,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 09:01:15,697 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:15,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:15,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1509309966, now seen corresponding path program 1 times [2024-12-02 09:01:15,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:15,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072418210] [2024-12-02 09:01:15,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:15,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:16,042 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-02 09:01:16,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:16,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072418210] [2024-12-02 09:01:16,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072418210] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:16,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:16,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:01:16,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393455533] [2024-12-02 09:01:16,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:16,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:01:16,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:16,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:01:16,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:16,046 INFO L87 Difference]: Start difference. First operand 114 states and 164 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:01:16,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:16,093 INFO L93 Difference]: Finished difference Result 227 states and 328 transitions. [2024-12-02 09:01:16,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:01:16,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 168 [2024-12-02 09:01:16,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:16,095 INFO L225 Difference]: With dead ends: 227 [2024-12-02 09:01:16,095 INFO L226 Difference]: Without dead ends: 116 [2024-12-02 09:01:16,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:16,097 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 475 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 09:01:16,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 475 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:16,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-12-02 09:01:16,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-12-02 09:01:16,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 93 states have (on average 1.3333333333333333) internal successors, (124), 93 states have internal predecessors, (124), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 09:01:16,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 166 transitions. [2024-12-02 09:01:16,110 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 166 transitions. Word has length 168 [2024-12-02 09:01:16,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:16,111 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 166 transitions. [2024-12-02 09:01:16,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:01:16,111 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 166 transitions. [2024-12-02 09:01:16,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 09:01:16,114 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:16,114 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:16,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 09:01:16,114 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:16,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:16,115 INFO L85 PathProgramCache]: Analyzing trace with hash 888677872, now seen corresponding path program 1 times [2024-12-02 09:01:16,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:16,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914031219] [2024-12-02 09:01:16,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:16,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:16,408 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-02 09:01:16,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:16,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914031219] [2024-12-02 09:01:16,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914031219] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:16,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:16,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:01:16,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820176619] [2024-12-02 09:01:16,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:16,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:01:16,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:16,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:01:16,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:16,411 INFO L87 Difference]: Start difference. First operand 116 states and 166 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:01:16,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:16,458 INFO L93 Difference]: Finished difference Result 232 states and 333 transitions. [2024-12-02 09:01:16,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:01:16,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 168 [2024-12-02 09:01:16,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:16,460 INFO L225 Difference]: With dead ends: 232 [2024-12-02 09:01:16,460 INFO L226 Difference]: Without dead ends: 119 [2024-12-02 09:01:16,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:16,462 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 1 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:16,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 472 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:16,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-12-02 09:01:16,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 118. [2024-12-02 09:01:16,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 95 states have (on average 1.3263157894736841) internal successors, (126), 95 states have internal predecessors, (126), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 09:01:16,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 168 transitions. [2024-12-02 09:01:16,474 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 168 transitions. Word has length 168 [2024-12-02 09:01:16,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:16,475 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 168 transitions. [2024-12-02 09:01:16,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:01:16,476 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 168 transitions. [2024-12-02 09:01:16,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 09:01:16,478 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:16,478 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:16,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 09:01:16,479 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:16,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:16,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1568736242, now seen corresponding path program 1 times [2024-12-02 09:01:16,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:16,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678513375] [2024-12-02 09:01:16,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:16,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:16,824 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-02 09:01:16,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:16,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678513375] [2024-12-02 09:01:16,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678513375] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:16,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:16,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:01:16,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500190056] [2024-12-02 09:01:16,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:16,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:01:16,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:16,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:01:16,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:16,826 INFO L87 Difference]: Start difference. First operand 118 states and 168 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:01:16,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:16,860 INFO L93 Difference]: Finished difference Result 236 states and 337 transitions. [2024-12-02 09:01:16,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:01:16,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 168 [2024-12-02 09:01:16,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:16,863 INFO L225 Difference]: With dead ends: 236 [2024-12-02 09:01:16,863 INFO L226 Difference]: Without dead ends: 121 [2024-12-02 09:01:16,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:16,865 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 1 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:16,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 473 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:16,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-12-02 09:01:16,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 120. [2024-12-02 09:01:16,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 97 states have (on average 1.3195876288659794) internal successors, (128), 97 states have internal predecessors, (128), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 09:01:16,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 170 transitions. [2024-12-02 09:01:16,877 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 170 transitions. Word has length 168 [2024-12-02 09:01:16,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:16,877 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 170 transitions. [2024-12-02 09:01:16,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:01:16,878 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 170 transitions. [2024-12-02 09:01:16,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 09:01:16,880 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:16,880 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:16,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 09:01:16,881 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:16,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:16,881 INFO L85 PathProgramCache]: Analyzing trace with hash -951223692, now seen corresponding path program 1 times [2024-12-02 09:01:16,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:16,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498489805] [2024-12-02 09:01:16,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:16,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:17,177 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-02 09:01:17,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:17,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498489805] [2024-12-02 09:01:17,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498489805] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:17,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:17,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:01:17,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221864666] [2024-12-02 09:01:17,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:17,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:01:17,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:17,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:01:17,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:17,180 INFO L87 Difference]: Start difference. First operand 120 states and 170 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:01:17,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:17,213 INFO L93 Difference]: Finished difference Result 240 states and 341 transitions. [2024-12-02 09:01:17,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:01:17,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 168 [2024-12-02 09:01:17,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:17,215 INFO L225 Difference]: With dead ends: 240 [2024-12-02 09:01:17,215 INFO L226 Difference]: Without dead ends: 123 [2024-12-02 09:01:17,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:17,216 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 1 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:17,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 475 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:17,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-12-02 09:01:17,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 122. [2024-12-02 09:01:17,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 99 states have (on average 1.3131313131313131) internal successors, (130), 99 states have internal predecessors, (130), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 09:01:17,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 172 transitions. [2024-12-02 09:01:17,227 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 172 transitions. Word has length 168 [2024-12-02 09:01:17,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:17,227 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 172 transitions. [2024-12-02 09:01:17,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:01:17,228 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 172 transitions. [2024-12-02 09:01:17,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 09:01:17,230 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:17,230 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:17,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 09:01:17,231 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:17,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:17,231 INFO L85 PathProgramCache]: Analyzing trace with hash -949376650, now seen corresponding path program 1 times [2024-12-02 09:01:17,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:17,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422015318] [2024-12-02 09:01:17,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:17,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:01:17,431 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 09:01:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:01:17,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 09:01:17,596 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 09:01:17,598 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 09:01:17,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 09:01:17,602 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-12-02 09:01:17,656 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 09:01:17,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 09:01:17 BoogieIcfgContainer [2024-12-02 09:01:17,659 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 09:01:17,660 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 09:01:17,660 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 09:01:17,660 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 09:01:17,661 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:01:14" (3/4) ... [2024-12-02 09:01:17,663 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 09:01:17,664 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 09:01:17,665 INFO L158 Benchmark]: Toolchain (without parser) took 4310.89ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 116.8MB in the beginning and 197.5MB in the end (delta: -80.7MB). Peak memory consumption was 68.0MB. Max. memory is 16.1GB. [2024-12-02 09:01:17,665 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 09:01:17,665 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.74ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 98.4MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 09:01:17,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.44ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 94.1MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 09:01:17,666 INFO L158 Benchmark]: Boogie Preprocessor took 54.32ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 90.6MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 09:01:17,666 INFO L158 Benchmark]: RCFGBuilder took 825.27ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 57.4MB in the end (delta: 33.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 09:01:17,667 INFO L158 Benchmark]: TraceAbstraction took 3050.86ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 56.6MB in the beginning and 197.6MB in the end (delta: -140.9MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2024-12-02 09:01:17,667 INFO L158 Benchmark]: Witness Printer took 3.94ms. Allocated memory is still 293.6MB. Free memory was 197.6MB in the beginning and 197.5MB in the end (delta: 25.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 09:01:17,669 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.74ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 98.4MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.44ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 94.1MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.32ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 90.6MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 825.27ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 57.4MB in the end (delta: 33.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3050.86ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 56.6MB in the beginning and 197.6MB in the end (delta: -140.9MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * Witness Printer took 3.94ms. Allocated memory is still 293.6MB. Free memory was 197.6MB in the beginning and 197.5MB in the end (delta: 25.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 103, overapproximation of someBinaryFLOATComparisonOperation at line 69, overapproximation of someBinaryFLOATComparisonOperation at line 97, overapproximation of someBinaryFLOATComparisonOperation at line 101, overapproximation of someBinaryFLOATComparisonOperation at line 135, overapproximation of someBinaryFLOATComparisonOperation at line 97, overapproximation of someBinaryFLOATComparisonOperation at line 99, overapproximation of someBinaryFLOATComparisonOperation at line 105, overapproximation of someBinaryFLOATComparisonOperation at line 105, overapproximation of someBinaryFLOATComparisonOperation at line 99, overapproximation of someBinaryFLOATComparisonOperation at line 103, overapproximation of someBinaryFLOATComparisonOperation at line 101. Possible FailurePath: [L43] unsigned char isInitial = 0; [L44-L64] struct WrapperStruct00 WrapperStruct00 = { 32.8, 255.675, 5.5, 128.75, 4.5, 9.25, 5, 200, 8, 4, 100, 64, 1, 200, 2, 0, 1, 64, 100 }; [L65] unsigned char last_1_WrapperStruct00_var_1_7 = 5; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_7=5] [L139] isInitial = 1 [L140] FCALL initially() [L142] CALL updateLastVariables() [L132] EXPR WrapperStruct00.var_1_7 [L132] last_1_WrapperStruct00_var_1_7 = WrapperStruct00.var_1_7 [L142] RET updateLastVariables() [L143] CALL updateVariables() [L96] WrapperStruct00.var_1_2 = __VERIFIER_nondet_float() [L97] EXPR WrapperStruct00.var_1_2 [L97] EXPR WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F [L97] EXPR WrapperStruct00.var_1_2 [L97] EXPR WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L97] EXPR (WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L97] CALL assume_abort_if_not((WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L97] RET assume_abort_if_not((WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L98] WrapperStruct00.var_1_3 = __VERIFIER_nondet_float() [L99] EXPR WrapperStruct00.var_1_3 [L99] EXPR WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F [L99] EXPR WrapperStruct00.var_1_3 [L99] EXPR WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L99] EXPR (WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L99] CALL assume_abort_if_not((WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L99] RET assume_abort_if_not((WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L100] WrapperStruct00.var_1_4 = __VERIFIER_nondet_float() [L101] EXPR WrapperStruct00.var_1_4 [L101] EXPR WrapperStruct00.var_1_4 >= 0.0F && WrapperStruct00.var_1_4 <= -1.0e-20F [L101] EXPR WrapperStruct00.var_1_4 [L101] EXPR WrapperStruct00.var_1_4 >= 0.0F && WrapperStruct00.var_1_4 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L101] EXPR (WrapperStruct00.var_1_4 >= 0.0F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L101] CALL assume_abort_if_not((WrapperStruct00.var_1_4 >= 0.0F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L101] RET assume_abort_if_not((WrapperStruct00.var_1_4 >= 0.0F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L102] WrapperStruct00.var_1_5 = __VERIFIER_nondet_float() [L103] EXPR WrapperStruct00.var_1_5 [L103] EXPR WrapperStruct00.var_1_5 >= 0.0F && WrapperStruct00.var_1_5 <= -1.0e-20F [L103] EXPR WrapperStruct00.var_1_5 [L103] EXPR WrapperStruct00.var_1_5 >= 0.0F && WrapperStruct00.var_1_5 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L103] EXPR (WrapperStruct00.var_1_5 >= 0.0F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L103] CALL assume_abort_if_not((WrapperStruct00.var_1_5 >= 0.0F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L103] RET assume_abort_if_not((WrapperStruct00.var_1_5 >= 0.0F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L104] WrapperStruct00.var_1_6 = __VERIFIER_nondet_float() [L105] EXPR WrapperStruct00.var_1_6 [L105] EXPR WrapperStruct00.var_1_6 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_6 <= -1.0e-20F [L105] EXPR WrapperStruct00.var_1_6 [L105] EXPR WrapperStruct00.var_1_6 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_6 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L105] EXPR (WrapperStruct00.var_1_6 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_6 <= -1.0e-20F) || (WrapperStruct00.var_1_6 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_6 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L105] CALL assume_abort_if_not((WrapperStruct00.var_1_6 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_6 <= -1.0e-20F) || (WrapperStruct00.var_1_6 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_6 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L105] RET assume_abort_if_not((WrapperStruct00.var_1_6 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_6 <= -1.0e-20F) || (WrapperStruct00.var_1_6 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_6 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L106] WrapperStruct00.var_1_11 = __VERIFIER_nondet_uchar() [L107] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_11 >= 190) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L107] RET assume_abort_if_not(WrapperStruct00.var_1_11 >= 190) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L108] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_11 <= 254) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L108] RET assume_abort_if_not(WrapperStruct00.var_1_11 <= 254) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L109] WrapperStruct00.var_1_12 = __VERIFIER_nondet_uchar() [L110] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L110] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L111] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L111] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L111] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L112] WrapperStruct00.var_1_13 = __VERIFIER_nondet_uchar() [L113] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L113] CALL assume_abort_if_not(WrapperStruct00.var_1_13 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L113] RET assume_abort_if_not(WrapperStruct00.var_1_13 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L114] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L114] CALL assume_abort_if_not(WrapperStruct00.var_1_13 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L114] RET assume_abort_if_not(WrapperStruct00.var_1_13 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L115] WrapperStruct00.var_1_14 = __VERIFIER_nondet_uchar() [L116] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L116] CALL assume_abort_if_not(WrapperStruct00.var_1_14 >= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L116] RET assume_abort_if_not(WrapperStruct00.var_1_14 >= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L117] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L117] CALL assume_abort_if_not(WrapperStruct00.var_1_14 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L117] RET assume_abort_if_not(WrapperStruct00.var_1_14 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L118] WrapperStruct00.var_1_15 = __VERIFIER_nondet_uchar() [L119] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L119] CALL assume_abort_if_not(WrapperStruct00.var_1_15 >= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L119] RET assume_abort_if_not(WrapperStruct00.var_1_15 >= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L120] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L120] CALL assume_abort_if_not(WrapperStruct00.var_1_15 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L120] RET assume_abort_if_not(WrapperStruct00.var_1_15 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L121] WrapperStruct00.var_1_17 = __VERIFIER_nondet_uchar() [L122] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L122] CALL assume_abort_if_not(WrapperStruct00.var_1_17 >= 191) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L122] RET assume_abort_if_not(WrapperStruct00.var_1_17 >= 191) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L123] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L123] CALL assume_abort_if_not(WrapperStruct00.var_1_17 <= 255) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L123] RET assume_abort_if_not(WrapperStruct00.var_1_17 <= 255) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L124] WrapperStruct00.var_1_18 = __VERIFIER_nondet_uchar() [L125] EXPR WrapperStruct00.var_1_18 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L125] CALL assume_abort_if_not(WrapperStruct00.var_1_18 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L125] RET assume_abort_if_not(WrapperStruct00.var_1_18 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L126] EXPR WrapperStruct00.var_1_18 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L126] CALL assume_abort_if_not(WrapperStruct00.var_1_18 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L126] RET assume_abort_if_not(WrapperStruct00.var_1_18 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L127] WrapperStruct00.var_1_19 = __VERIFIER_nondet_uchar() [L128] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L128] CALL assume_abort_if_not(WrapperStruct00.var_1_19 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L128] RET assume_abort_if_not(WrapperStruct00.var_1_19 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L129] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L129] CALL assume_abort_if_not(WrapperStruct00.var_1_19 <= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L129] RET assume_abort_if_not(WrapperStruct00.var_1_19 <= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L143] RET updateVariables() [L144] CALL step() [L69] EXPR WrapperStruct00.var_1_2 [L69] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L69] COND FALSE !(WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) [L76] EXPR WrapperStruct00.var_1_6 [L76] WrapperStruct00.var_1_1 = WrapperStruct00.var_1_6 [L78] EXPR WrapperStruct00.var_1_14 [L78] WrapperStruct00.var_1_20 = WrapperStruct00.var_1_14 [L79] EXPR WrapperStruct00.var_1_17 [L79] WrapperStruct00.var_1_21 = WrapperStruct00.var_1_17 [L80] WrapperStruct00.var_1_22 = 4 [L81] EXPR WrapperStruct00.var_1_21 [L81] signed long int stepLocal_0 = WrapperStruct00.var_1_21; [L82] EXPR WrapperStruct00.var_1_17 [L82] EXPR WrapperStruct00.var_1_12 [L82] EXPR WrapperStruct00.var_1_18 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5, stepLocal_0=191] [L82] COND FALSE !(((WrapperStruct00.var_1_17 - WrapperStruct00.var_1_12) - (8 + WrapperStruct00.var_1_18)) > stepLocal_0) [L85] EXPR WrapperStruct00.var_1_19 [L85] WrapperStruct00.var_1_16 = WrapperStruct00.var_1_19 [L87] WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L87] COND FALSE !(WrapperStruct00.var_1_16) [L144] RET step() [L145] CALL, EXPR property() [L135] EXPR WrapperStruct00.var_1_2 [L135] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L135] EXPR (WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) ? ((WrapperStruct00.var_1_3 < ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5) + 1.395f)) ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) [L135] EXPR WrapperStruct00.var_1_1 [L135] EXPR WrapperStruct00.var_1_6 [L135] EXPR (WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) ? ((WrapperStruct00.var_1_3 < ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5) + 1.395f)) ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L135] EXPR ((WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) ? ((WrapperStruct00.var_1_3 < ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5) + 1.395f)) ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_16 ? ((last_1_WrapperStruct00_var_1_7 != last_1_WrapperStruct00_var_1_7) ? (WrapperStruct00.var_1_7 == ((unsigned char) ((WrapperStruct00.var_1_11 - WrapperStruct00.var_1_12) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_7 == ((unsigned char) (WrapperStruct00.var_1_11 - (((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_15))) - WrapperStruct00.var_1_12))))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L135] EXPR (((WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) ? ((WrapperStruct00.var_1_3 < ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5) + 1.395f)) ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_16 ? ((last_1_WrapperStruct00_var_1_7 != last_1_WrapperStruct00_var_1_7) ? (WrapperStruct00.var_1_7 == ((unsigned char) ((WrapperStruct00.var_1_11 - WrapperStruct00.var_1_12) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_7 == ((unsigned char) (WrapperStruct00.var_1_11 - (((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_15))) - WrapperStruct00.var_1_12))))) : 1)) && ((((WrapperStruct00.var_1_17 - WrapperStruct00.var_1_12) - (8 + WrapperStruct00.var_1_18)) > WrapperStruct00.var_1_21) ? (WrapperStruct00.var_1_16 == ((unsigned char) (! WrapperStruct00.var_1_19))) : (WrapperStruct00.var_1_16 == ((unsigned char) WrapperStruct00.var_1_19))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L135] EXPR ((((WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) ? ((WrapperStruct00.var_1_3 < ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5) + 1.395f)) ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_16 ? ((last_1_WrapperStruct00_var_1_7 != last_1_WrapperStruct00_var_1_7) ? (WrapperStruct00.var_1_7 == ((unsigned char) ((WrapperStruct00.var_1_11 - WrapperStruct00.var_1_12) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_7 == ((unsigned char) (WrapperStruct00.var_1_11 - (((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_15))) - WrapperStruct00.var_1_12))))) : 1)) && ((((WrapperStruct00.var_1_17 - WrapperStruct00.var_1_12) - (8 + WrapperStruct00.var_1_18)) > WrapperStruct00.var_1_21) ? (WrapperStruct00.var_1_16 == ((unsigned char) (! WrapperStruct00.var_1_19))) : (WrapperStruct00.var_1_16 == ((unsigned char) WrapperStruct00.var_1_19)))) && (WrapperStruct00.var_1_20 == ((unsigned long int) WrapperStruct00.var_1_14)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L135] EXPR (((((WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) ? ((WrapperStruct00.var_1_3 < ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5) + 1.395f)) ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_16 ? ((last_1_WrapperStruct00_var_1_7 != last_1_WrapperStruct00_var_1_7) ? (WrapperStruct00.var_1_7 == ((unsigned char) ((WrapperStruct00.var_1_11 - WrapperStruct00.var_1_12) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_7 == ((unsigned char) (WrapperStruct00.var_1_11 - (((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_15))) - WrapperStruct00.var_1_12))))) : 1)) && ((((WrapperStruct00.var_1_17 - WrapperStruct00.var_1_12) - (8 + WrapperStruct00.var_1_18)) > WrapperStruct00.var_1_21) ? (WrapperStruct00.var_1_16 == ((unsigned char) (! WrapperStruct00.var_1_19))) : (WrapperStruct00.var_1_16 == ((unsigned char) WrapperStruct00.var_1_19)))) && (WrapperStruct00.var_1_20 == ((unsigned long int) WrapperStruct00.var_1_14))) && (WrapperStruct00.var_1_21 == ((signed long int) WrapperStruct00.var_1_17)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L135] EXPR ((((((WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) ? ((WrapperStruct00.var_1_3 < ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5) + 1.395f)) ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_16 ? ((last_1_WrapperStruct00_var_1_7 != last_1_WrapperStruct00_var_1_7) ? (WrapperStruct00.var_1_7 == ((unsigned char) ((WrapperStruct00.var_1_11 - WrapperStruct00.var_1_12) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_7 == ((unsigned char) (WrapperStruct00.var_1_11 - (((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_15))) - WrapperStruct00.var_1_12))))) : 1)) && ((((WrapperStruct00.var_1_17 - WrapperStruct00.var_1_12) - (8 + WrapperStruct00.var_1_18)) > WrapperStruct00.var_1_21) ? (WrapperStruct00.var_1_16 == ((unsigned char) (! WrapperStruct00.var_1_19))) : (WrapperStruct00.var_1_16 == ((unsigned char) WrapperStruct00.var_1_19)))) && (WrapperStruct00.var_1_20 == ((unsigned long int) WrapperStruct00.var_1_14))) && (WrapperStruct00.var_1_21 == ((signed long int) WrapperStruct00.var_1_17))) && (WrapperStruct00.var_1_22 == ((unsigned char) 4)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L135-L136] return ((((((WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) ? ((WrapperStruct00.var_1_3 < ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5) + 1.395f)) ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_16 ? ((last_1_WrapperStruct00_var_1_7 != last_1_WrapperStruct00_var_1_7) ? (WrapperStruct00.var_1_7 == ((unsigned char) ((WrapperStruct00.var_1_11 - WrapperStruct00.var_1_12) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_7 == ((unsigned char) (WrapperStruct00.var_1_11 - (((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_15))) - WrapperStruct00.var_1_12))))) : 1)) && ((((WrapperStruct00.var_1_17 - WrapperStruct00.var_1_12) - (8 + WrapperStruct00.var_1_18)) > WrapperStruct00.var_1_21) ? (WrapperStruct00.var_1_16 == ((unsigned char) (! WrapperStruct00.var_1_19))) : (WrapperStruct00.var_1_16 == ((unsigned char) WrapperStruct00.var_1_19)))) && (WrapperStruct00.var_1_20 == ((unsigned long int) WrapperStruct00.var_1_14))) && (WrapperStruct00.var_1_21 == ((signed long int) WrapperStruct00.var_1_17))) && (WrapperStruct00.var_1_22 == ((unsigned char) 4)) ; [L145] RET, EXPR property() [L145] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 118 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 21, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 2059 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1250 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 809 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122occurred in iteration=5, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1176 NumberOfCodeBlocks, 1176 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1002 ConstructedInterpolants, 0 QuantifiedInterpolants, 1010 SizeOfPredicates, 0 NumberOfNonLiveVariables, 614 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 5000/5040 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 09:01:17,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 6af22983044ba27ae435cb0dcfcd33ee0fc69f0bc5638fc1b6ee52bc6b6af1dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 09:01:19,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 09:01:19,741 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 09:01:19,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 09:01:19,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 09:01:19,779 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 09:01:19,779 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 09:01:19,779 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 09:01:19,780 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 09:01:19,780 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 09:01:19,780 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 09:01:19,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 09:01:19,780 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 09:01:19,780 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 09:01:19,781 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 09:01:19,781 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 09:01:19,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 09:01:19,781 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 09:01:19,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 09:01:19,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 09:01:19,781 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 09:01:19,781 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 09:01:19,781 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 09:01:19,782 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 09:01:19,782 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 09:01:19,782 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 09:01:19,782 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 09:01:19,782 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 09:01:19,782 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 09:01:19,782 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 09:01:19,782 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 09:01:19,782 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:01:19,782 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:01:19,782 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:01:19,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:01:19,783 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 09:01:19,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:01:19,783 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:01:19,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:01:19,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:01:19,783 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 09:01:19,783 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 09:01:19,783 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 09:01:19,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 09:01:19,784 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 09:01:19,784 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 09:01:19,784 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 09:01:19,784 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 09:01:19,784 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 09:01:19,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 09:01:19,784 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_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 -> 6af22983044ba27ae435cb0dcfcd33ee0fc69f0bc5638fc1b6ee52bc6b6af1dd [2024-12-02 09:01:20,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 09:01:20,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 09:01:20,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 09:01:20,058 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 09:01:20,058 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 09:01:20,060 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i [2024-12-02 09:01:22,798 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/data/2658865dd/90ff351394eb44b3b5439bd628dd284e/FLAGb1b977a8a [2024-12-02 09:01:23,000 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 09:01:23,000 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i [2024-12-02 09:01:23,009 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/data/2658865dd/90ff351394eb44b3b5439bd628dd284e/FLAGb1b977a8a [2024-12-02 09:01:23,026 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/data/2658865dd/90ff351394eb44b3b5439bd628dd284e [2024-12-02 09:01:23,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 09:01:23,031 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 09:01:23,032 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 09:01:23,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 09:01:23,038 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 09:01:23,038 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:01:23" (1/1) ... [2024-12-02 09:01:23,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57d7e492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:23, skipping insertion in model container [2024-12-02 09:01:23,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:01:23" (1/1) ... [2024-12-02 09:01:23,059 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 09:01:23,205 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_b07f57bc-894a-466d-8662-2b9f019fe2c4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i[916,929] [2024-12-02 09:01:23,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:01:23,279 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 09:01:23,291 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_b07f57bc-894a-466d-8662-2b9f019fe2c4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i[916,929] [2024-12-02 09:01:23,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:01:23,370 INFO L204 MainTranslator]: Completed translation [2024-12-02 09:01:23,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:23 WrapperNode [2024-12-02 09:01:23,371 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 09:01:23,372 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 09:01:23,372 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 09:01:23,373 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 09:01:23,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:23" (1/1) ... [2024-12-02 09:01:23,396 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:23" (1/1) ... [2024-12-02 09:01:23,433 INFO L138 Inliner]: procedures = 34, calls = 176, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 495 [2024-12-02 09:01:23,433 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 09:01:23,434 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 09:01:23,434 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 09:01:23,434 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 09:01:23,443 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:23" (1/1) ... [2024-12-02 09:01:23,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:23" (1/1) ... [2024-12-02 09:01:23,449 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:23" (1/1) ... [2024-12-02 09:01:23,468 INFO L175 MemorySlicer]: Split 144 memory accesses to 2 slices as follows [2, 142]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 43 writes are split as follows [0, 43]. [2024-12-02 09:01:23,469 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:23" (1/1) ... [2024-12-02 09:01:23,469 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:23" (1/1) ... [2024-12-02 09:01:23,491 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:23" (1/1) ... [2024-12-02 09:01:23,492 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:23" (1/1) ... [2024-12-02 09:01:23,497 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:23" (1/1) ... [2024-12-02 09:01:23,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:23" (1/1) ... [2024-12-02 09:01:23,502 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:23" (1/1) ... [2024-12-02 09:01:23,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 09:01:23,507 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 09:01:23,507 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 09:01:23,507 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 09:01:23,508 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:23" (1/1) ... [2024-12-02 09:01:23,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:01:23,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:01:23,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 09:01:23,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 09:01:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 09:01:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 09:01:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 09:01:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 09:01:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 09:01:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-02 09:01:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-02 09:01:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 09:01:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 09:01:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-12-02 09:01:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-12-02 09:01:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-12-02 09:01:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-12-02 09:01:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-12-02 09:01:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-12-02 09:01:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 09:01:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 09:01:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-12-02 09:01:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-12-02 09:01:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 09:01:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 09:01:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 09:01:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 09:01:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 09:01:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 09:01:23,689 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 09:01:23,691 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 09:01:26,316 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-12-02 09:01:26,316 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 09:01:26,328 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 09:01:26,328 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 09:01:26,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:01:26 BoogieIcfgContainer [2024-12-02 09:01:26,329 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 09:01:26,339 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 09:01:26,339 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 09:01:26,343 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 09:01:26,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:01:23" (1/3) ... [2024-12-02 09:01:26,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fa52f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:01:26, skipping insertion in model container [2024-12-02 09:01:26,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:23" (2/3) ... [2024-12-02 09:01:26,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fa52f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:01:26, skipping insertion in model container [2024-12-02 09:01:26,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:01:26" (3/3) ... [2024-12-02 09:01:26,345 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-48.i [2024-12-02 09:01:26,360 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 09:01:26,361 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-48.i that has 2 procedures, 118 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 09:01:26,409 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 09:01:26,419 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;@6e4a20e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 09:01:26,419 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 09:01:26,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 95 states have internal predecessors, (131), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 09:01:26,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 09:01:26,437 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:26,438 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:26,438 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:26,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:26,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1073768961, now seen corresponding path program 1 times [2024-12-02 09:01:26,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:01:26,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1245820944] [2024-12-02 09:01:26,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:26,457 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 09:01:26,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:01:26,459 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:26,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:26,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 09:01:26,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:26,934 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 424 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2024-12-02 09:01:26,934 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:01:26,934 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:01:26,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1245820944] [2024-12-02 09:01:26,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1245820944] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:26,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:26,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 09:01:26,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425989376] [2024-12-02 09:01:26,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:26,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 09:01:26,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:01:26,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 09:01:26,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 09:01:26,962 INFO L87 Difference]: Start difference. First operand has 118 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 95 states have internal predecessors, (131), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:01:26,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:26,991 INFO L93 Difference]: Finished difference Result 229 states and 361 transitions. [2024-12-02 09:01:26,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 09:01:26,993 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 168 [2024-12-02 09:01:26,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:26,999 INFO L225 Difference]: With dead ends: 229 [2024-12-02 09:01:26,999 INFO L226 Difference]: Without dead ends: 114 [2024-12-02 09:01:27,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 167 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 09:01:27,004 INFO L435 NwaCegarLoop]: 164 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, 164 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 09:01:27,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:27,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-12-02 09:01:27,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-12-02 09:01:27,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 91 states have (on average 1.3406593406593406) internal successors, (122), 91 states have internal predecessors, (122), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 09:01:27,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 164 transitions. [2024-12-02 09:01:27,068 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 164 transitions. Word has length 168 [2024-12-02 09:01:27,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:27,069 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 164 transitions. [2024-12-02 09:01:27,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:01:27,069 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 164 transitions. [2024-12-02 09:01:27,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 09:01:27,073 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:27,073 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:27,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:27,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:27,274 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:27,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:27,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1044496541, now seen corresponding path program 1 times [2024-12-02 09:01:27,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:01:27,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772154910] [2024-12-02 09:01:27,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:27,276 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 09:01:27,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:01:27,277 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:27,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:27,635 INFO L256 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 09:01:27,641 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:27,707 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-02 09:01:27,707 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:01:27,707 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:01:27,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772154910] [2024-12-02 09:01:27,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772154910] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:27,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:27,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 09:01:27,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760126347] [2024-12-02 09:01:27,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:27,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:01:27,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:01:27,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:01:27,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:01:27,710 INFO L87 Difference]: Start difference. First operand 114 states and 164 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:01:27,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:27,809 INFO L93 Difference]: Finished difference Result 230 states and 332 transitions. [2024-12-02 09:01:27,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:01:27,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 168 [2024-12-02 09:01:27,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:27,812 INFO L225 Difference]: With dead ends: 230 [2024-12-02 09:01:27,812 INFO L226 Difference]: Without dead ends: 119 [2024-12-02 09:01:27,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 164 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 09:01:27,814 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 1 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:27,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 620 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:01:27,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-12-02 09:01:27,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 118. [2024-12-02 09:01:27,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 95 states have (on average 1.3263157894736841) internal successors, (126), 95 states have internal predecessors, (126), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 09:01:27,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 168 transitions. [2024-12-02 09:01:27,827 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 168 transitions. Word has length 168 [2024-12-02 09:01:27,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:27,829 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 168 transitions. [2024-12-02 09:01:27,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:01:27,830 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 168 transitions. [2024-12-02 09:01:27,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 09:01:27,833 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:27,833 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:27,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:28,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:28,034 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:28,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:28,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1724554911, now seen corresponding path program 1 times [2024-12-02 09:01:28,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:01:28,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402748230] [2024-12-02 09:01:28,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:28,035 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 09:01:28,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:01:28,037 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:28,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:28,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 09:01:28,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:28,473 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-02 09:01:28,473 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:01:28,473 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:01:28,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402748230] [2024-12-02 09:01:28,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402748230] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:28,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:28,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:01:28,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137082414] [2024-12-02 09:01:28,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:28,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:01:28,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:01:28,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:01:28,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:01:28,476 INFO L87 Difference]: Start difference. First operand 118 states and 168 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:01:28,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:28,571 INFO L93 Difference]: Finished difference Result 236 states and 337 transitions. [2024-12-02 09:01:28,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:01:28,572 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 168 [2024-12-02 09:01:28,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:28,574 INFO L225 Difference]: With dead ends: 236 [2024-12-02 09:01:28,574 INFO L226 Difference]: Without dead ends: 121 [2024-12-02 09:01:28,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 163 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 09:01:28,576 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 1 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:28,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 765 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:01:28,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-12-02 09:01:28,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 120. [2024-12-02 09:01:28,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 97 states have (on average 1.3195876288659794) internal successors, (128), 97 states have internal predecessors, (128), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 09:01:28,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 170 transitions. [2024-12-02 09:01:28,588 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 170 transitions. Word has length 168 [2024-12-02 09:01:28,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:28,588 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 170 transitions. [2024-12-02 09:01:28,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:01:28,589 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 170 transitions. [2024-12-02 09:01:28,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 09:01:28,592 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:28,592 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:28,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-12-02 09:01:28,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:28,793 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:28,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:28,793 INFO L85 PathProgramCache]: Analyzing trace with hash -795405023, now seen corresponding path program 1 times [2024-12-02 09:01:28,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:01:28,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998446197] [2024-12-02 09:01:28,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:28,794 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 09:01:28,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:01:28,796 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:28,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:29,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 09:01:29,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:29,194 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-02 09:01:29,194 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:01:29,194 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:01:29,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1998446197] [2024-12-02 09:01:29,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1998446197] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:29,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:29,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 09:01:29,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583159623] [2024-12-02 09:01:29,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:29,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 09:01:29,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:01:29,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 09:01:29,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:29,197 INFO L87 Difference]: Start difference. First operand 120 states and 170 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:01:29,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:29,301 INFO L93 Difference]: Finished difference Result 240 states and 341 transitions. [2024-12-02 09:01:29,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 09:01:29,301 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 168 [2024-12-02 09:01:29,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:29,303 INFO L225 Difference]: With dead ends: 240 [2024-12-02 09:01:29,303 INFO L226 Difference]: Without dead ends: 123 [2024-12-02 09:01:29,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:29,305 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 1 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:29,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 911 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:01:29,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-12-02 09:01:29,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 122. [2024-12-02 09:01:29,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 99 states have (on average 1.3131313131313131) internal successors, (130), 99 states have internal predecessors, (130), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 09:01:29,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 172 transitions. [2024-12-02 09:01:29,318 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 172 transitions. Word has length 168 [2024-12-02 09:01:29,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:29,319 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 172 transitions. [2024-12-02 09:01:29,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:01:29,319 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 172 transitions. [2024-12-02 09:01:29,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 09:01:29,322 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:29,322 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:29,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:29,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:29,523 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:29,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:29,523 INFO L85 PathProgramCache]: Analyzing trace with hash -793557981, now seen corresponding path program 1 times [2024-12-02 09:01:29,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:01:29,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [616282944] [2024-12-02 09:01:29,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:29,524 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 09:01:29,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:01:29,526 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:29,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:29,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 09:01:29,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:30,033 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 95 treesize of output 41 [2024-12-02 09:01:30,070 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-12-02 09:01:30,070 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:01:30,070 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:01:30,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [616282944] [2024-12-02 09:01:30,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [616282944] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:30,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:30,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 09:01:30,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660039281] [2024-12-02 09:01:30,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:30,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:01:30,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:01:30,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:01:30,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:01:30,072 INFO L87 Difference]: Start difference. First operand 122 states and 172 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:01:31,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:31,971 INFO L93 Difference]: Finished difference Result 242 states and 342 transitions. [2024-12-02 09:01:31,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 09:01:31,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 168 [2024-12-02 09:01:31,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:31,974 INFO L225 Difference]: With dead ends: 242 [2024-12-02 09:01:31,974 INFO L226 Difference]: Without dead ends: 123 [2024-12-02 09:01:31,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:01:31,975 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 144 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:31,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 463 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 09:01:31,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-12-02 09:01:31,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 122. [2024-12-02 09:01:31,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 99 states have (on average 1.303030303030303) internal successors, (129), 99 states have internal predecessors, (129), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 09:01:31,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 171 transitions. [2024-12-02 09:01:31,994 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 171 transitions. Word has length 168 [2024-12-02 09:01:31,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:31,995 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 171 transitions. [2024-12-02 09:01:31,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:01:31,995 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 171 transitions. [2024-12-02 09:01:31,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 09:01:31,997 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:31,998 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:32,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:32,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:32,198 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:32,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:32,199 INFO L85 PathProgramCache]: Analyzing trace with hash -2036759063, now seen corresponding path program 1 times [2024-12-02 09:01:32,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:01:32,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784220340] [2024-12-02 09:01:32,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:32,200 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 09:01:32,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:01:32,201 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:32,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:32,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 09:01:32,538 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:32,642 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 95 treesize of output 41 [2024-12-02 09:01:32,675 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-12-02 09:01:32,675 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:01:32,675 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:01:32,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784220340] [2024-12-02 09:01:32,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784220340] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:32,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:32,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 09:01:32,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052222117] [2024-12-02 09:01:32,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:32,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:01:32,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:01:32,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:01:32,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:01:32,677 INFO L87 Difference]: Start difference. First operand 122 states and 171 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:01:35,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:35,065 INFO L93 Difference]: Finished difference Result 242 states and 340 transitions. [2024-12-02 09:01:35,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 09:01:35,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 170 [2024-12-02 09:01:35,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:35,067 INFO L225 Difference]: With dead ends: 242 [2024-12-02 09:01:35,068 INFO L226 Difference]: Without dead ends: 123 [2024-12-02 09:01:35,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:01:35,068 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 134 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:35,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 461 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 09:01:35,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-12-02 09:01:35,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 122. [2024-12-02 09:01:35,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 99 states have (on average 1.292929292929293) internal successors, (128), 99 states have internal predecessors, (128), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 09:01:35,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 170 transitions. [2024-12-02 09:01:35,078 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 170 transitions. Word has length 170 [2024-12-02 09:01:35,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:35,078 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 170 transitions. [2024-12-02 09:01:35,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:01:35,078 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 170 transitions. [2024-12-02 09:01:35,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-12-02 09:01:35,080 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:35,080 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:35,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:35,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:35,281 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:35,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:35,281 INFO L85 PathProgramCache]: Analyzing trace with hash -402700829, now seen corresponding path program 1 times [2024-12-02 09:01:35,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:01:35,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164005823] [2024-12-02 09:01:35,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:35,282 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 09:01:35,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:01:35,283 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:35,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:35,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 09:01:35,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:35,783 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 09:01:35,851 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 27 treesize of output 15 [2024-12-02 09:01:35,868 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 48 treesize of output 25 [2024-12-02 09:01:35,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:35,943 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 85 treesize of output 60 [2024-12-02 09:01:36,014 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:36,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 42 treesize of output 18 [2024-12-02 09:01:36,039 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-12-02 09:01:36,040 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:01:36,040 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:01:36,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164005823] [2024-12-02 09:01:36,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1164005823] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:36,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:36,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 09:01:36,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420969012] [2024-12-02 09:01:36,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:36,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 09:01:36,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:01:36,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 09:01:36,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:01:36,041 INFO L87 Difference]: Start difference. First operand 122 states and 170 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:01:39,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:01:44,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:44,960 INFO L93 Difference]: Finished difference Result 432 states and 601 transitions. [2024-12-02 09:01:44,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 09:01:44,961 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 172 [2024-12-02 09:01:44,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:44,963 INFO L225 Difference]: With dead ends: 432 [2024-12-02 09:01:44,964 INFO L226 Difference]: Without dead ends: 313 [2024-12-02 09:01:44,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=316, Unknown=0, NotChecked=0, Total=420 [2024-12-02 09:01:44,965 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 301 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:44,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 811 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2024-12-02 09:01:44,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-12-02 09:01:44,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 128. [2024-12-02 09:01:44,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 104 states have (on average 1.2788461538461537) internal successors, (133), 104 states have internal predecessors, (133), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 09:01:44,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 175 transitions. [2024-12-02 09:01:44,983 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 175 transitions. Word has length 172 [2024-12-02 09:01:44,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:44,983 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 175 transitions. [2024-12-02 09:01:44,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:01:44,984 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 175 transitions. [2024-12-02 09:01:44,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-12-02 09:01:44,985 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:44,985 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:44,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-12-02 09:01:45,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:45,185 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:45,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:45,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2091644571, now seen corresponding path program 1 times [2024-12-02 09:01:45,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:01:45,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895398520] [2024-12-02 09:01:45,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:45,186 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 09:01:45,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:01:45,188 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:45,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:01:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:45,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 09:01:45,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:45,804 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 09:01:46,055 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 75 treesize of output 44 [2024-12-02 09:01:46,297 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:46,298 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 90 treesize of output 47 [2024-12-02 09:01:46,536 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:46,537 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 85 treesize of output 57 [2024-12-02 09:01:46,901 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:46,901 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 95 treesize of output 70 [2024-12-02 09:01:47,362 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:47,363 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 110 treesize of output 73 [2024-12-02 09:01:47,742 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:47,742 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 110 treesize of output 73 [2024-12-02 09:01:48,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:48,041 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 105 treesize of output 83 [2024-12-02 09:01:48,485 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:48,485 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 120 treesize of output 86 [2024-12-02 09:01:48,930 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:48,930 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 161 treesize of output 113 [2024-12-02 09:01:49,093 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:49,094 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 182 treesize of output 118 [2024-12-02 09:01:49,290 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:49,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 175 treesize of output 121 [2024-12-02 09:01:49,476 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:49,476 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 256 treesize of output 100 [2024-12-02 09:01:49,597 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 432 proven. 272 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 09:01:49,597 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:01:49,825 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:01:49,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [895398520] [2024-12-02 09:01:49,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [895398520] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:01:49,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1950426343] [2024-12-02 09:01:49,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:49,826 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 09:01:49,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 09:01:49,828 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 09:01:49,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-12-02 09:01:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:51,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 09:01:51,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:52,235 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 15 treesize of output 1 [2024-12-02 09:01:52,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-12-02 09:01:52,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-12-02 09:01:53,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 40 [2024-12-02 09:01:53,344 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:53,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 51 [2024-12-02 09:01:53,713 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:53,714 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 77 treesize of output 62 [2024-12-02 09:01:54,116 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:54,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 65 [2024-12-02 09:01:54,419 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:54,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 65 [2024-12-02 09:01:54,757 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:54,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 85 treesize of output 73 [2024-12-02 09:01:55,388 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:55,389 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 135 treesize of output 103 [2024-12-02 09:01:55,616 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:55,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 36 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 146 treesize of output 106 [2024-12-02 09:01:55,884 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:55,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 143 treesize of output 109 [2024-12-02 09:01:56,061 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:56,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 216 treesize of output 100 [2024-12-02 09:01:56,089 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 432 proven. 272 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 09:01:56,089 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:01:56,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1950426343] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:01:56,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 09:01:56,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2024-12-02 09:01:56,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54256704] [2024-12-02 09:01:56,205 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 09:01:56,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 09:01:56,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:01:56,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 09:01:56,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=677, Unknown=0, NotChecked=0, Total=812 [2024-12-02 09:01:56,208 INFO L87 Difference]: Start difference. First operand 128 states and 175 transitions. Second operand has 26 states, 26 states have (on average 6.0) internal successors, (156), 25 states have internal predecessors, (156), 12 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 12 states have call predecessors, (42), 12 states have call successors, (42) [2024-12-02 09:01:59,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:02:02,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:02:03,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:02:06,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:02:24,590 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 [0] [2024-12-02 09:02:28,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:28,313 INFO L93 Difference]: Finished difference Result 401 states and 535 transitions. [2024-12-02 09:02:28,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 09:02:28,313 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.0) internal successors, (156), 25 states have internal predecessors, (156), 12 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 12 states have call predecessors, (42), 12 states have call successors, (42) Word has length 172 [2024-12-02 09:02:28,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:28,316 INFO L225 Difference]: With dead ends: 401 [2024-12-02 09:02:28,316 INFO L226 Difference]: Without dead ends: 276 [2024-12-02 09:02:28,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 362 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=374, Invalid=1432, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 09:02:28,317 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 753 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 182 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 2058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:28,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1312 Invalid, 2058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1874 Invalid, 2 Unknown, 0 Unchecked, 30.6s Time] [2024-12-02 09:02:28,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-12-02 09:02:28,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 273. [2024-12-02 09:02:28,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 220 states have (on average 1.2545454545454546) internal successors, (276), 221 states have internal predecessors, (276), 42 states have call successors, (42), 10 states have call predecessors, (42), 10 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 09:02:28,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 360 transitions. [2024-12-02 09:02:28,359 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 360 transitions. Word has length 172 [2024-12-02 09:02:28,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:28,360 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 360 transitions. [2024-12-02 09:02:28,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.0) internal successors, (156), 25 states have internal predecessors, (156), 12 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 12 states have call predecessors, (42), 12 states have call successors, (42) [2024-12-02 09:02:28,360 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 360 transitions. [2024-12-02 09:02:28,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-12-02 09:02:28,362 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:28,362 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:02:28,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:28,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-12-02 09:02:28,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 09:02:28,763 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:02:28,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:28,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1768817127, now seen corresponding path program 1 times [2024-12-02 09:02:28,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:02:28,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432026514] [2024-12-02 09:02:28,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:28,764 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 09:02:28,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:02:28,766 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:28,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:29,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 09:02:29,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:29,091 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2024-12-02 09:02:29,092 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:02:29,092 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:02:29,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432026514] [2024-12-02 09:02:29,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432026514] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:02:29,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:02:29,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:02:29,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928737359] [2024-12-02 09:02:29,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:02:29,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:02:29,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:02:29,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:02:29,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:02:29,093 INFO L87 Difference]: Start difference. First operand 273 states and 360 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:02:29,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:29,167 INFO L93 Difference]: Finished difference Result 543 states and 717 transitions. [2024-12-02 09:02:29,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:02:29,168 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 172 [2024-12-02 09:02:29,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:29,171 INFO L225 Difference]: With dead ends: 543 [2024-12-02 09:02:29,171 INFO L226 Difference]: Without dead ends: 273 [2024-12-02 09:02:29,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 09:02:29,173 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:29,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 472 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:02:29,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-12-02 09:02:29,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2024-12-02 09:02:29,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 220 states have (on average 1.25) internal successors, (275), 221 states have internal predecessors, (275), 42 states have call successors, (42), 10 states have call predecessors, (42), 10 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 09:02:29,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 359 transitions. [2024-12-02 09:02:29,206 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 359 transitions. Word has length 172 [2024-12-02 09:02:29,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:29,207 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 359 transitions. [2024-12-02 09:02:29,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:02:29,207 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 359 transitions. [2024-12-02 09:02:29,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-12-02 09:02:29,208 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:29,208 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:02:29,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:29,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:29,409 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:02:29,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:29,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1163084800, now seen corresponding path program 1 times [2024-12-02 09:02:29,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:02:29,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081780101] [2024-12-02 09:02:29,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:29,410 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 09:02:29,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:02:29,411 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:29,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:29,963 INFO L256 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-12-02 09:02:29,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:30,015 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 09:02:30,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2024-12-02 09:02:30,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:30,936 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 140 treesize of output 67 [2024-12-02 09:02:31,183 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:31,183 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 140 treesize of output 67 [2024-12-02 09:02:31,441 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:31,441 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 140 treesize of output 67 [2024-12-02 09:02:31,648 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:31,648 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 135 treesize of output 77 [2024-12-02 09:02:32,097 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:32,097 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 150 treesize of output 80 [2024-12-02 09:02:32,472 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:32,473 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 145 treesize of output 90 [2024-12-02 09:02:33,017 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:33,017 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 160 treesize of output 93 [2024-12-02 09:02:33,444 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:33,445 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 155 treesize of output 103 [2024-12-02 09:02:34,052 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:34,053 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 165 treesize of output 116 [2024-12-02 09:02:34,773 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:34,773 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 175 treesize of output 129 [2024-12-02 09:02:35,590 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:35,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 190 treesize of output 132 [2024-12-02 09:02:36,651 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:36,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 238 treesize of output 148 [2024-12-02 09:02:36,999 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:36,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 199 treesize of output 134 [2024-12-02 09:02:37,389 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:37,389 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 192 treesize of output 137 [2024-12-02 09:02:37,602 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:37,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 227 treesize of output 83 [2024-12-02 09:02:37,782 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 656 proven. 80 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-12-02 09:02:37,782 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:02:38,385 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-02 09:02:38,385 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:02:38,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081780101] [2024-12-02 09:02:38,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081780101] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:38,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:02:38,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 23 [2024-12-02 09:02:38,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043759952] [2024-12-02 09:02:38,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:02:38,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:02:38,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:02:38,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:02:38,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-12-02 09:02:38,387 INFO L87 Difference]: Start difference. First operand 273 states and 359 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:02:40,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:40,992 INFO L93 Difference]: Finished difference Result 629 states and 825 transitions. [2024-12-02 09:02:40,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:02:40,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 174 [2024-12-02 09:02:40,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:40,996 INFO L225 Difference]: With dead ends: 629 [2024-12-02 09:02:40,996 INFO L226 Difference]: Without dead ends: 359 [2024-12-02 09:02:40,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-12-02 09:02:40,997 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 41 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:40,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 459 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 09:02:40,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-12-02 09:02:41,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 295. [2024-12-02 09:02:41,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 242 states have (on average 1.2520661157024793) internal successors, (303), 243 states have internal predecessors, (303), 42 states have call successors, (42), 10 states have call predecessors, (42), 10 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 09:02:41,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 387 transitions. [2024-12-02 09:02:41,030 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 387 transitions. Word has length 174 [2024-12-02 09:02:41,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:41,030 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 387 transitions. [2024-12-02 09:02:41,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:02:41,031 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 387 transitions. [2024-12-02 09:02:41,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-12-02 09:02:41,032 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:41,032 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:02:41,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:41,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:41,233 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:02:41,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:41,233 INFO L85 PathProgramCache]: Analyzing trace with hash 686042992, now seen corresponding path program 1 times [2024-12-02 09:02:41,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:02:41,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [301086596] [2024-12-02 09:02:41,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:41,234 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 09:02:41,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:02:41,236 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:41,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:41,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 09:02:41,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:41,573 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-02 09:02:41,573 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:02:41,574 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:02:41,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [301086596] [2024-12-02 09:02:41,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [301086596] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:02:41,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:02:41,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 09:02:41,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738365933] [2024-12-02 09:02:41,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:02:41,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:02:41,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:02:41,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:02:41,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:02:41,575 INFO L87 Difference]: Start difference. First operand 295 states and 387 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:02:41,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:41,644 INFO L93 Difference]: Finished difference Result 593 states and 779 transitions. [2024-12-02 09:02:41,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:02:41,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 174 [2024-12-02 09:02:41,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:41,647 INFO L225 Difference]: With dead ends: 593 [2024-12-02 09:02:41,647 INFO L226 Difference]: Without dead ends: 301 [2024-12-02 09:02:41,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 170 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 09:02:41,648 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 619 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 09:02:41,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 619 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:02:41,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-12-02 09:02:41,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2024-12-02 09:02:41,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 248 states have (on average 1.2459677419354838) internal successors, (309), 249 states have internal predecessors, (309), 42 states have call successors, (42), 10 states have call predecessors, (42), 10 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 09:02:41,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 393 transitions. [2024-12-02 09:02:41,674 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 393 transitions. Word has length 174 [2024-12-02 09:02:41,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:41,674 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 393 transitions. [2024-12-02 09:02:41,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:02:41,675 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 393 transitions. [2024-12-02 09:02:41,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-12-02 09:02:41,676 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:41,676 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:02:41,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:41,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:41,877 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:02:41,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:41,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1088040041, now seen corresponding path program 1 times [2024-12-02 09:02:41,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:02:41,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294804106] [2024-12-02 09:02:41,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:41,877 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 09:02:41,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:02:41,879 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:41,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:42,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 09:02:42,197 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:42,238 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 332 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2024-12-02 09:02:42,238 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:02:42,238 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:02:42,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294804106] [2024-12-02 09:02:42,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294804106] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:02:42,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:02:42,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:02:42,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014738134] [2024-12-02 09:02:42,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:02:42,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:02:42,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:02:42,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:02:42,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:02:42,239 INFO L87 Difference]: Start difference. First operand 301 states and 393 transitions. Second operand has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-12-02 09:02:42,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:42,531 INFO L93 Difference]: Finished difference Result 615 states and 800 transitions. [2024-12-02 09:02:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 09:02:42,532 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 174 [2024-12-02 09:02:42,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:42,534 INFO L225 Difference]: With dead ends: 615 [2024-12-02 09:02:42,535 INFO L226 Difference]: Without dead ends: 315 [2024-12-02 09:02:42,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 169 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 09:02:42,536 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 1 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:42,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 641 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 09:02:42,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-12-02 09:02:42,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 301. [2024-12-02 09:02:42,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 248 states have (on average 1.2419354838709677) internal successors, (308), 249 states have internal predecessors, (308), 42 states have call successors, (42), 10 states have call predecessors, (42), 10 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 09:02:42,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 392 transitions. [2024-12-02 09:02:42,575 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 392 transitions. Word has length 174 [2024-12-02 09:02:42,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:42,576 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 392 transitions. [2024-12-02 09:02:42,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-12-02 09:02:42,576 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 392 transitions. [2024-12-02 09:02:42,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-12-02 09:02:42,577 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:42,577 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:02:42,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:42,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:42,778 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:02:42,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:42,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1517698347, now seen corresponding path program 1 times [2024-12-02 09:02:42,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:02:42,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754217055] [2024-12-02 09:02:42,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:42,779 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 09:02:42,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:02:42,781 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:42,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:02:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:43,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 09:02:43,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:43,364 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 09:02:43,721 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 73 treesize of output 42 [2024-12-02 09:02:43,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:43,974 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 88 treesize of output 45 [2024-12-02 09:02:44,176 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:44,176 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 83 treesize of output 55 [2024-12-02 09:02:44,507 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:44,508 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 98 treesize of output 58 [2024-12-02 09:02:44,766 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:44,766 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 98 treesize of output 58 [2024-12-02 09:02:45,030 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:45,030 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 98 treesize of output 58 [2024-12-02 09:02:45,292 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:45,292 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 93 treesize of output 68 [2024-12-02 09:02:45,701 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:45,701 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 103 treesize of output 81 [2024-12-02 09:02:46,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:46,244 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 159 treesize of output 111 [2024-12-02 09:02:46,413 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:46,413 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 180 treesize of output 116 [2024-12-02 09:02:46,601 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:46,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 173 treesize of output 119 [2024-12-02 09:02:46,779 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:46,779 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 254 treesize of output 98 [2024-12-02 09:02:46,882 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 352 proven. 320 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-12-02 09:02:46,883 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:02:47,075 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:02:47,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754217055] [2024-12-02 09:02:47,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754217055] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:47,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1465620997] [2024-12-02 09:02:47,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:47,076 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 09:02:47,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 09:02:47,077 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 09:02:47,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-12-02 09:02:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:49,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-02 09:02:49,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:49,742 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 15 treesize of output 1 [2024-12-02 09:02:50,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 38 [2024-12-02 09:02:51,062 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:51,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 49 [2024-12-02 09:02:51,407 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:51,408 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 75 treesize of output 60 [2024-12-02 09:02:51,797 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:51,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 71 [2024-12-02 09:02:52,294 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:52,295 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 91 treesize of output 82 [2024-12-02 09:02:52,793 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:52,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 99 treesize of output 93 [2024-12-02 09:02:53,502 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:53,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 107 treesize of output 104 [2024-12-02 09:02:54,391 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:54,392 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 118 treesize of output 107 [2024-12-02 09:02:55,124 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:55,124 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 157 treesize of output 134 [2024-12-02 09:02:55,517 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:55,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 66 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 168 treesize of output 137 [2024-12-02 09:02:55,908 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:55,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 165 treesize of output 140 [2024-12-02 09:02:56,192 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:02:56,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 238 treesize of output 110 [2024-12-02 09:02:56,230 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 448 proven. 320 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-02 09:02:56,230 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:02:56,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1465620997] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:56,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 09:02:56,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20] total 34 [2024-12-02 09:02:56,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298687118] [2024-12-02 09:02:56,371 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 09:02:56,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-12-02 09:02:56,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:02:56,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-12-02 09:02:56,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=1156, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 09:02:56,374 INFO L87 Difference]: Start difference. First operand 301 states and 392 transitions. Second operand has 35 states, 33 states have (on average 5.121212121212121) internal successors, (169), 30 states have internal predecessors, (169), 15 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 15 states have call predecessors, (42), 15 states have call successors, (42) [2024-12-02 09:02:58,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:02:59,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:03:02,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:03:05,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:03:07,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:03:08,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:03:13,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:03:35,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:35,684 INFO L93 Difference]: Finished difference Result 680 states and 867 transitions. [2024-12-02 09:03:35,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-12-02 09:03:35,684 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 33 states have (on average 5.121212121212121) internal successors, (169), 30 states have internal predecessors, (169), 15 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 15 states have call predecessors, (42), 15 states have call successors, (42) Word has length 174 [2024-12-02 09:03:35,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:35,686 INFO L225 Difference]: With dead ends: 680 [2024-12-02 09:03:35,686 INFO L226 Difference]: Without dead ends: 382 [2024-12-02 09:03:35,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 356 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1476 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=1351, Invalid=4811, Unknown=0, NotChecked=0, Total=6162 [2024-12-02 09:03:35,688 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 1206 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 2229 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 2520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 2229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:35,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 1102 Invalid, 2520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 2229 Invalid, 0 Unknown, 0 Unchecked, 34.1s Time] [2024-12-02 09:03:35,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-12-02 09:03:35,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 223. [2024-12-02 09:03:35,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 173 states have (on average 1.1791907514450868) internal successors, (204), 174 states have internal predecessors, (204), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 09:03:35,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 272 transitions. [2024-12-02 09:03:35,716 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 272 transitions. Word has length 174 [2024-12-02 09:03:35,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:35,717 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 272 transitions. [2024-12-02 09:03:35,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 33 states have (on average 5.121212121212121) internal successors, (169), 30 states have internal predecessors, (169), 15 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 15 states have call predecessors, (42), 15 states have call successors, (42) [2024-12-02 09:03:35,717 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 272 transitions. [2024-12-02 09:03:35,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-12-02 09:03:35,718 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:35,718 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:35,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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)] Forceful destruction successful, exit code 0 [2024-12-02 09:03:35,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-12-02 09:03:36,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 09:03:36,119 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:36,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:36,119 INFO L85 PathProgramCache]: Analyzing trace with hash -163096509, now seen corresponding path program 1 times [2024-12-02 09:03:36,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:03:36,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729779670] [2024-12-02 09:03:36,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:36,120 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 09:03:36,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:03:36,121 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:03:36,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:03:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:36,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-02 09:03:36,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:03:36,765 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 09:03:36,995 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 80 treesize of output 34 [2024-12-02 09:03:37,105 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 80 treesize of output 34 [2024-12-02 09:03:37,210 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 75 treesize of output 44 [2024-12-02 09:03:37,411 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:03:37,411 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 85 treesize of output 57 [2024-12-02 09:03:37,679 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:03:37,679 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 100 treesize of output 60 [2024-12-02 09:03:37,877 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:03:37,877 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 100 treesize of output 60 [2024-12-02 09:03:38,092 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:03:38,093 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 100 treesize of output 60 [2024-12-02 09:03:38,302 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:03:38,302 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 95 treesize of output 70 [2024-12-02 09:03:38,694 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:03:38,694 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 151 treesize of output 100 [2024-12-02 09:03:38,816 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:03:38,816 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 172 treesize of output 105 [2024-12-02 09:03:38,963 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:03:38,963 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 165 treesize of output 108 [2024-12-02 09:03:39,157 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:03:39,157 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 246 treesize of output 96 [2024-12-02 09:03:39,272 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 384 proven. 272 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-12-02 09:03:39,272 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:03:39,509 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:03:39,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729779670] [2024-12-02 09:03:39,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729779670] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:03:39,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [354218680] [2024-12-02 09:03:39,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:39,509 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 09:03:39,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 09:03:39,511 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 09:03:39,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-12-02 09:03:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:41,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-12-02 09:03:41,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:03:42,552 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 15 treesize of output 1 [2024-12-02 09:03:42,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-12-02 09:03:43,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-12-02 09:03:43,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-12-02 09:03:43,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-12-02 09:03:43,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-12-02 09:03:43,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-12-02 09:03:43,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-12-02 09:03:43,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 40 [2024-12-02 09:03:44,309 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:03:44,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 70 [2024-12-02 09:03:44,450 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:03:44,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 73 [2024-12-02 09:03:44,606 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:03:44,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 119 treesize of output 76 [2024-12-02 09:03:44,749 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:03:44,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 192 treesize of output 88 [2024-12-02 09:03:44,776 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 120 proven. 272 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-12-02 09:03:44,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:03:44,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [354218680] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:03:44,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 09:03:44,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 22 [2024-12-02 09:03:44,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603385561] [2024-12-02 09:03:44,917 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 09:03:44,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 09:03:44,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:03:44,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 09:03:44,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=598, Unknown=0, NotChecked=0, Total=702 [2024-12-02 09:03:44,918 INFO L87 Difference]: Start difference. First operand 223 states and 272 transitions. Second operand has 23 states, 23 states have (on average 6.478260869565218) internal successors, (149), 22 states have internal predecessors, (149), 8 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 8 states have call predecessors, (42), 8 states have call successors, (42) [2024-12-02 09:03:47,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:04:00,439 WARN L539 Checker$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 [0] [2024-12-02 09:04:08,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:04:11,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:04:12,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:04:13,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:04:16,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:04:16,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:16,565 INFO L93 Difference]: Finished difference Result 556 states and 687 transitions. [2024-12-02 09:04:16,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 09:04:16,566 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.478260869565218) internal successors, (149), 22 states have internal predecessors, (149), 8 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 8 states have call predecessors, (42), 8 states have call successors, (42) Word has length 175 [2024-12-02 09:04:16,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:16,567 INFO L225 Difference]: With dead ends: 556 [2024-12-02 09:04:16,567 INFO L226 Difference]: Without dead ends: 336 [2024-12-02 09:04:16,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 376 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=280, Invalid=1202, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 09:04:16,568 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 661 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 1951 mSolverCounterSat, 142 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 2097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1951 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:16,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 1355 Invalid, 2097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1951 Invalid, 4 Unknown, 0 Unchecked, 30.5s Time] [2024-12-02 09:04:16,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-12-02 09:04:16,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 256. [2024-12-02 09:04:16,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 200 states have (on average 1.19) internal successors, (238), 200 states have internal predecessors, (238), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 09:04:16,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 314 transitions. [2024-12-02 09:04:16,623 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 314 transitions. Word has length 175 [2024-12-02 09:04:16,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:16,623 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 314 transitions. [2024-12-02 09:04:16,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.478260869565218) internal successors, (149), 22 states have internal predecessors, (149), 8 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 8 states have call predecessors, (42), 8 states have call successors, (42) [2024-12-02 09:04:16,624 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 314 transitions. [2024-12-02 09:04:16,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-12-02 09:04:16,624 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:16,624 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:16,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:04:16,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2024-12-02 09:04:17,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 09:04:17,025 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:17,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:17,025 INFO L85 PathProgramCache]: Analyzing trace with hash 265532355, now seen corresponding path program 1 times [2024-12-02 09:04:17,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:04:17,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979187525] [2024-12-02 09:04:17,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:17,026 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 09:04:17,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:04:17,028 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:04:17,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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)] Waiting until timeout for monitored process [2024-12-02 09:04:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:17,533 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 09:04:17,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:04:17,542 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 36 treesize of output 10 [2024-12-02 09:04:17,552 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 30 treesize of output 14 [2024-12-02 09:04:17,598 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 40 treesize of output 22 [2024-12-02 09:04:17,630 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-02 09:04:17,631 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:04:17,631 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:04:17,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979187525] [2024-12-02 09:04:17,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979187525] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:17,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:17,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:04:17,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794504295] [2024-12-02 09:04:17,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:17,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:04:17,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:04:17,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:04:17,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:04:17,632 INFO L87 Difference]: Start difference. First operand 256 states and 314 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:04:21,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:21,448 INFO L93 Difference]: Finished difference Result 443 states and 538 transitions. [2024-12-02 09:04:21,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:04:21,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 176 [2024-12-02 09:04:21,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:21,456 INFO L225 Difference]: With dead ends: 443 [2024-12-02 09:04:21,456 INFO L226 Difference]: Without dead ends: 441 [2024-12-02 09:04:21,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 171 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 09:04:21,457 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 121 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:21,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 884 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-12-02 09:04:21,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-12-02 09:04:21,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 259. [2024-12-02 09:04:21,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 203 states have (on average 1.187192118226601) internal successors, (241), 203 states have internal predecessors, (241), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 09:04:21,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 317 transitions. [2024-12-02 09:04:21,494 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 317 transitions. Word has length 176 [2024-12-02 09:04:21,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:21,494 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 317 transitions. [2024-12-02 09:04:21,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:04:21,495 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 317 transitions. [2024-12-02 09:04:21,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-12-02 09:04:21,495 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:21,495 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:21,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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)] Ended with exit code 0 [2024-12-02 09:04:21,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:04:21,696 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:21,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:21,696 INFO L85 PathProgramCache]: Analyzing trace with hash 267379397, now seen corresponding path program 1 times [2024-12-02 09:04:21,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:04:21,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899731828] [2024-12-02 09:04:21,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:21,697 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 09:04:21,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:04:21,698 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:04:21,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:04:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:22,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 09:04:22,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:04:22,241 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 09:04:22,244 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 14 treesize of output 10 [2024-12-02 09:04:22,298 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 30 treesize of output 14 [2024-12-02 09:04:22,354 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 14 [2024-12-02 09:04:22,363 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:22,363 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 49 treesize of output 44 [2024-12-02 09:04:22,399 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:22,399 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 57 treesize of output 50 [2024-12-02 09:04:22,608 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2024-12-02 09:04:22,609 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:04:22,609 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:04:22,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899731828] [2024-12-02 09:04:22,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899731828] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:22,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:22,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:04:22,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735893682] [2024-12-02 09:04:22,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:22,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:04:22,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:04:22,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:04:22,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:04:22,610 INFO L87 Difference]: Start difference. First operand 259 states and 317 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:04:24,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:04:27,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:27,166 INFO L93 Difference]: Finished difference Result 644 states and 786 transitions. [2024-12-02 09:04:27,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:04:27,167 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 176 [2024-12-02 09:04:27,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:27,169 INFO L225 Difference]: With dead ends: 644 [2024-12-02 09:04:27,169 INFO L226 Difference]: Without dead ends: 388 [2024-12-02 09:04:27,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 09:04:27,170 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 215 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:27,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 469 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-12-02 09:04:27,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-12-02 09:04:27,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 337. [2024-12-02 09:04:27,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 260 states have (on average 1.1884615384615385) internal successors, (309), 261 states have internal predecessors, (309), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:04:27,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 415 transitions. [2024-12-02 09:04:27,240 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 415 transitions. Word has length 176 [2024-12-02 09:04:27,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:27,241 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 415 transitions. [2024-12-02 09:04:27,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:04:27,241 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 415 transitions. [2024-12-02 09:04:27,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-12-02 09:04:27,242 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:27,242 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:27,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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)] Ended with exit code 0 [2024-12-02 09:04:27,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:04:27,442 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:27,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:27,443 INFO L85 PathProgramCache]: Analyzing trace with hash 2042386759, now seen corresponding path program 1 times [2024-12-02 09:04:27,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:04:27,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810339179] [2024-12-02 09:04:27,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:27,443 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 09:04:27,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:04:27,444 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:04:27,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (21)] Waiting until timeout for monitored process [2024-12-02 09:04:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:27,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 09:04:27,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:04:27,909 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 09:04:27,912 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 09:04:27,915 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 14 treesize of output 10 [2024-12-02 09:04:27,966 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 30 treesize of output 14 [2024-12-02 09:04:28,002 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 30 treesize of output 14 [2024-12-02 09:04:28,048 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 14 [2024-12-02 09:04:28,056 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:28,057 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 49 treesize of output 44 [2024-12-02 09:04:28,089 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:28,089 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 57 treesize of output 50 [2024-12-02 09:04:28,270 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 09:04:28,270 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:04:28,270 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:04:28,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810339179] [2024-12-02 09:04:28,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810339179] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:28,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:28,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:04:28,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205604307] [2024-12-02 09:04:28,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:28,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:04:28,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:04:28,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:04:28,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:04:28,272 INFO L87 Difference]: Start difference. First operand 337 states and 415 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:04:29,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:04:33,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:33,019 INFO L93 Difference]: Finished difference Result 631 states and 768 transitions. [2024-12-02 09:04:33,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:04:33,020 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 176 [2024-12-02 09:04:33,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:33,023 INFO L225 Difference]: With dead ends: 631 [2024-12-02 09:04:33,023 INFO L226 Difference]: Without dead ends: 371 [2024-12-02 09:04:33,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 09:04:33,024 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 173 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:33,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 444 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-12-02 09:04:33,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-12-02 09:04:33,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 337. [2024-12-02 09:04:33,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 260 states have (on average 1.1846153846153846) internal successors, (308), 261 states have internal predecessors, (308), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:04:33,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 414 transitions. [2024-12-02 09:04:33,097 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 414 transitions. Word has length 176 [2024-12-02 09:04:33,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:33,097 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 414 transitions. [2024-12-02 09:04:33,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:04:33,097 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 414 transitions. [2024-12-02 09:04:33,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-12-02 09:04:33,098 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:33,098 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:33,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (21)] Ended with exit code 0 [2024-12-02 09:04:33,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:04:33,299 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:33,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:33,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1572522167, now seen corresponding path program 1 times [2024-12-02 09:04:33,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:04:33,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870459560] [2024-12-02 09:04:33,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:33,300 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 09:04:33,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:04:33,301 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:04:33,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (22)] Waiting until timeout for monitored process [2024-12-02 09:04:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:33,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 09:04:33,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:04:33,781 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 09:04:33,840 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 27 treesize of output 15 [2024-12-02 09:04:33,847 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 48 treesize of output 25 [2024-12-02 09:04:33,887 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:33,887 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 09:04:34,064 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:34,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 87 treesize of output 39 [2024-12-02 09:04:34,127 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-12-02 09:04:34,128 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:04:34,128 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:04:34,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870459560] [2024-12-02 09:04:34,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870459560] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:34,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:34,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 09:04:34,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616070738] [2024-12-02 09:04:34,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:34,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 09:04:34,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:04:34,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 09:04:34,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 09:04:34,129 INFO L87 Difference]: Start difference. First operand 337 states and 414 transitions. Second operand has 11 states, 10 states have (on average 7.7) internal successors, (77), 11 states have internal predecessors, (77), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:04:35,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:04:41,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:41,060 INFO L93 Difference]: Finished difference Result 955 states and 1140 transitions. [2024-12-02 09:04:41,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 09:04:41,061 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.7) internal successors, (77), 11 states have internal predecessors, (77), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 176 [2024-12-02 09:04:41,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:41,064 INFO L225 Difference]: With dead ends: 955 [2024-12-02 09:04:41,064 INFO L226 Difference]: Without dead ends: 695 [2024-12-02 09:04:41,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2024-12-02 09:04:41,066 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 285 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:41,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 784 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-12-02 09:04:41,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2024-12-02 09:04:41,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 383. [2024-12-02 09:04:41,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 303 states have (on average 1.198019801980198) internal successors, (363), 304 states have internal predecessors, (363), 55 states have call successors, (55), 24 states have call predecessors, (55), 24 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2024-12-02 09:04:41,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 473 transitions. [2024-12-02 09:04:41,167 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 473 transitions. Word has length 176 [2024-12-02 09:04:41,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:41,167 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 473 transitions. [2024-12-02 09:04:41,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.7) internal successors, (77), 11 states have internal predecessors, (77), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:04:41,168 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 473 transitions. [2024-12-02 09:04:41,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-12-02 09:04:41,168 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:41,168 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:41,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (22)] Ended with exit code 0 [2024-12-02 09:04:41,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:04:41,369 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:41,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:41,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1830687605, now seen corresponding path program 1 times [2024-12-02 09:04:41,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:04:41,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240676804] [2024-12-02 09:04:41,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:41,370 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 09:04:41,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:04:41,371 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:04:41,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (23)] Waiting until timeout for monitored process [2024-12-02 09:04:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:41,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-02 09:04:41,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:04:41,868 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 09:04:41,908 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 09:04:42,021 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:42,021 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 41 treesize of output 28 [2024-12-02 09:04:42,108 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:42,108 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 41 treesize of output 28 [2024-12-02 09:04:42,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-12-02 09:04:42,608 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:42,608 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 56 [2024-12-02 09:04:42,896 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:42,896 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 67 treesize of output 69 [2024-12-02 09:04:43,296 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:43,296 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 67 treesize of output 67 [2024-12-02 09:04:43,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 88 [2024-12-02 09:04:43,614 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:43,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 134 treesize of output 112 [2024-12-02 09:04:44,063 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:44,063 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 113 treesize of output 47 [2024-12-02 09:04:44,133 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 604 proven. 48 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-12-02 09:04:44,133 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:04:44,597 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-02 09:04:44,597 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:04:44,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1240676804] [2024-12-02 09:04:44,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1240676804] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 09:04:44,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:04:44,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 20 [2024-12-02 09:04:44,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872622813] [2024-12-02 09:04:44,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:44,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:04:44,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:04:44,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:04:44,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2024-12-02 09:04:44,599 INFO L87 Difference]: Start difference. First operand 383 states and 473 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:04:53,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:53,566 INFO L93 Difference]: Finished difference Result 703 states and 860 transitions. [2024-12-02 09:04:53,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:04:53,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 176 [2024-12-02 09:04:53,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:53,569 INFO L225 Difference]: With dead ends: 703 [2024-12-02 09:04:53,569 INFO L226 Difference]: Without dead ends: 405 [2024-12-02 09:04:53,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2024-12-02 09:04:53,570 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 166 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:53,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 422 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-12-02 09:04:53,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-12-02 09:04:53,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 387. [2024-12-02 09:04:53,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 306 states have (on average 1.1895424836601307) internal successors, (364), 307 states have internal predecessors, (364), 55 states have call successors, (55), 25 states have call predecessors, (55), 25 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2024-12-02 09:04:53,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 474 transitions. [2024-12-02 09:04:53,656 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 474 transitions. Word has length 176 [2024-12-02 09:04:53,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:53,656 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 474 transitions. [2024-12-02 09:04:53,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:04:53,656 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 474 transitions. [2024-12-02 09:04:53,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-12-02 09:04:53,658 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:53,658 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:53,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (23)] Ended with exit code 0 [2024-12-02 09:04:53,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:04:53,858 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:53,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:53,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1265518269, now seen corresponding path program 1 times [2024-12-02 09:04:53,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:04:53,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1477527475] [2024-12-02 09:04:53,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:53,859 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 09:04:53,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:04:53,861 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:04:53,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (24)] Waiting until timeout for monitored process [2024-12-02 09:04:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:54,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 09:04:54,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:04:54,566 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 09:04:54,835 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 73 treesize of output 42 [2024-12-02 09:04:55,048 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:55,048 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 88 treesize of output 45 [2024-12-02 09:04:55,224 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:55,224 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 88 treesize of output 45 [2024-12-02 09:04:55,411 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:55,411 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 83 treesize of output 55 [2024-12-02 09:04:55,689 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:55,690 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 93 treesize of output 68 [2024-12-02 09:04:56,040 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:56,041 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 108 treesize of output 71 [2024-12-02 09:04:56,334 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:56,334 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 108 treesize of output 71 [2024-12-02 09:04:56,666 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:56,667 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 103 treesize of output 81 [2024-12-02 09:04:57,321 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:57,321 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 159 treesize of output 111 [2024-12-02 09:04:57,518 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:57,518 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 180 treesize of output 116 [2024-12-02 09:04:57,707 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:57,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 173 treesize of output 119 [2024-12-02 09:04:57,973 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:04:57,973 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 254 treesize of output 98 [2024-12-02 09:04:58,169 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 368 proven. 320 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-12-02 09:04:58,169 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:04:58,477 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:04:58,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1477527475] [2024-12-02 09:04:58,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1477527475] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:04:58,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [170079755] [2024-12-02 09:04:58,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:58,477 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 09:04:58,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 09:04:58,479 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 09:04:58,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-12-02 09:05:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:05:01,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-12-02 09:05:01,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:05:01,492 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 15 treesize of output 1 [2024-12-02 09:05:02,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 30 [2024-12-02 09:05:02,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 30 [2024-12-02 09:05:02,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 38 [2024-12-02 09:05:03,104 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:05:03,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 49 [2024-12-02 09:05:03,561 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:05:03,561 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 75 treesize of output 60 [2024-12-02 09:05:04,059 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:05:04,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 71 [2024-12-02 09:05:04,626 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:05:04,626 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 91 treesize of output 82 [2024-12-02 09:05:05,359 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:05:05,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 102 treesize of output 85 [2024-12-02 09:05:05,964 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:05:05,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 141 treesize of output 112 [2024-12-02 09:05:06,287 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:05:06,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 45 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 152 treesize of output 115 [2024-12-02 09:05:06,620 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:05:06,620 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 149 treesize of output 118 [2024-12-02 09:05:06,928 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:05:06,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 222 treesize of output 102 [2024-12-02 09:05:06,967 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 432 proven. 320 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-12-02 09:05:06,967 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:05:07,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [170079755] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:05:07,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 09:05:07,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 33 [2024-12-02 09:05:07,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257743827] [2024-12-02 09:05:07,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 09:05:07,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-12-02 09:05:07,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:05:07,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-12-02 09:05:07,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1199, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 09:05:07,128 INFO L87 Difference]: Start difference. First operand 387 states and 474 transitions. Second operand has 34 states, 32 states have (on average 5.34375) internal successors, (171), 30 states have internal predecessors, (171), 14 states have call successors, (42), 14 states have call predecessors, (42), 14 states have return successors, (42), 13 states have call predecessors, (42), 14 states have call successors, (42) [2024-12-02 09:05:08,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:05:10,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:05:11,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:05:16,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:05:30,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:05:40,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:05:40,548 INFO L93 Difference]: Finished difference Result 800 states and 975 transitions. [2024-12-02 09:05:40,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-12-02 09:05:40,549 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 5.34375) internal successors, (171), 30 states have internal predecessors, (171), 14 states have call successors, (42), 14 states have call predecessors, (42), 14 states have return successors, (42), 13 states have call predecessors, (42), 14 states have call successors, (42) Word has length 177 [2024-12-02 09:05:40,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:05:40,551 INFO L225 Difference]: With dead ends: 800 [2024-12-02 09:05:40,551 INFO L226 Difference]: Without dead ends: 498 [2024-12-02 09:05:40,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 368 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1393 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=1180, Invalid=4672, Unknown=0, NotChecked=0, Total=5852 [2024-12-02 09:05:40,553 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 664 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 2130 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 2130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2024-12-02 09:05:40,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1061 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 2130 Invalid, 0 Unknown, 0 Unchecked, 27.6s Time] [2024-12-02 09:05:40,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-12-02 09:05:40,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 288. [2024-12-02 09:05:40,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 233 states have (on average 1.1974248927038627) internal successors, (279), 234 states have internal predecessors, (279), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 09:05:40,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 355 transitions. [2024-12-02 09:05:40,612 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 355 transitions. Word has length 177 [2024-12-02 09:05:40,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:05:40,613 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 355 transitions. [2024-12-02 09:05:40,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 5.34375) internal successors, (171), 30 states have internal predecessors, (171), 14 states have call successors, (42), 14 states have call predecessors, (42), 14 states have return successors, (42), 13 states have call predecessors, (42), 14 states have call successors, (42) [2024-12-02 09:05:40,613 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 355 transitions. [2024-12-02 09:05:40,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-12-02 09:05:40,614 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:05:40,614 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:05:40,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (24)] Ended with exit code 0 [2024-12-02 09:05:40,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2024-12-02 09:05:41,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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=3,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 09:05:41,014 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:05:41,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:05:41,015 INFO L85 PathProgramCache]: Analyzing trace with hash 628571515, now seen corresponding path program 1 times [2024-12-02 09:05:41,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:05:41,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307680167] [2024-12-02 09:05:41,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:05:41,015 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 09:05:41,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:05:41,017 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:05:41,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (26)] Waiting until timeout for monitored process [2024-12-02 09:05:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:05:41,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 09:05:41,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:05:41,473 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-02 09:05:41,474 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:05:41,474 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:05:41,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307680167] [2024-12-02 09:05:41,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1307680167] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:05:41,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:05:41,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 09:05:41,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258680158] [2024-12-02 09:05:41,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:05:41,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:05:41,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:05:41,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:05:41,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:05:41,475 INFO L87 Difference]: Start difference. First operand 288 states and 355 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:05:43,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:05:45,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:05:49,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:05:49,808 INFO L93 Difference]: Finished difference Result 633 states and 774 transitions. [2024-12-02 09:05:49,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:05:49,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 178 [2024-12-02 09:05:49,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:05:49,811 INFO L225 Difference]: With dead ends: 633 [2024-12-02 09:05:49,811 INFO L226 Difference]: Without dead ends: 430 [2024-12-02 09:05:49,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:05:49,812 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 115 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:05:49,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 630 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-12-02 09:05:49,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-12-02 09:05:49,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 297. [2024-12-02 09:05:49,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 242 states have (on average 1.1983471074380165) internal successors, (290), 243 states have internal predecessors, (290), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 09:05:49,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 366 transitions. [2024-12-02 09:05:49,879 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 366 transitions. Word has length 178 [2024-12-02 09:05:49,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:05:49,879 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 366 transitions. [2024-12-02 09:05:49,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:05:49,879 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 366 transitions. [2024-12-02 09:05:49,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-12-02 09:05:49,880 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:05:49,880 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:05:49,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (26)] Ended with exit code 0 [2024-12-02 09:05:50,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:05:50,080 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:05:50,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:05:50,081 INFO L85 PathProgramCache]: Analyzing trace with hash -51815295, now seen corresponding path program 1 times [2024-12-02 09:05:50,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:05:50,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928738731] [2024-12-02 09:05:50,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:05:50,081 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 09:05:50,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:05:50,083 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:05:50,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (27)] Waiting until timeout for monitored process [2024-12-02 09:05:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:05:50,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 09:05:50,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:05:50,613 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 09:05:50,700 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 27 treesize of output 15 [2024-12-02 09:05:50,711 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 48 treesize of output 25 [2024-12-02 09:05:50,771 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:05:50,771 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 85 treesize of output 60 [2024-12-02 09:05:50,898 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:05:50,898 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 62 treesize of output 70 [2024-12-02 09:05:51,066 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:05:51,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 68 treesize of output 32 [2024-12-02 09:05:51,102 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-12-02 09:05:51,103 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:05:51,103 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:05:51,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928738731] [2024-12-02 09:05:51,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928738731] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:05:51,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:05:51,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 09:05:51,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318883557] [2024-12-02 09:05:51,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:05:51,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 09:05:51,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:05:51,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 09:05:51,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 09:05:51,104 INFO L87 Difference]: Start difference. First operand 297 states and 366 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:06:01,107 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 [0] [2024-12-02 09:06:04,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:06:04,028 INFO L93 Difference]: Finished difference Result 726 states and 870 transitions. [2024-12-02 09:06:04,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 09:06:04,028 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 179 [2024-12-02 09:06:04,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:06:04,030 INFO L225 Difference]: With dead ends: 726 [2024-12-02 09:06:04,030 INFO L226 Difference]: Without dead ends: 514 [2024-12-02 09:06:04,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2024-12-02 09:06:04,032 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 294 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 46 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:06:04,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 805 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1604 Invalid, 4 Unknown, 0 Unchecked, 12.3s Time] [2024-12-02 09:06:04,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-12-02 09:06:04,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 294. [2024-12-02 09:06:04,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 239 states have (on average 1.1966527196652719) internal successors, (286), 240 states have internal predecessors, (286), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 09:06:04,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 362 transitions. [2024-12-02 09:06:04,129 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 362 transitions. Word has length 179 [2024-12-02 09:06:04,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:06:04,129 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 362 transitions. [2024-12-02 09:06:04,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 09:06:04,129 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 362 transitions. [2024-12-02 09:06:04,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 09:06:04,130 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:06:04,131 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:04,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (27)] Ended with exit code 0 [2024-12-02 09:06:04,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:06:04,331 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:06:04,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:06:04,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1738994867, now seen corresponding path program 1 times [2024-12-02 09:06:04,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:06:04,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040851499] [2024-12-02 09:06:04,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:06:04,332 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 09:06:04,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:06:04,333 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:06:04,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (28)] Waiting until timeout for monitored process [2024-12-02 09:06:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:06:04,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-02 09:06:04,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:06:04,908 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 09:06:04,912 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 09:06:04,916 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 09:06:04,920 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 14 treesize of output 10 [2024-12-02 09:06:04,997 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 30 treesize of output 14 [2024-12-02 09:06:05,070 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 30 treesize of output 14 [2024-12-02 09:06:05,132 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 25 treesize of output 24 [2024-12-02 09:06:05,287 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:05,288 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 35 treesize of output 37 [2024-12-02 09:06:05,544 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:05,545 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 46 treesize of output 40 [2024-12-02 09:06:05,571 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:05,571 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 67 treesize of output 50 [2024-12-02 09:06:05,645 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:05,645 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 60 treesize of output 53 [2024-12-02 09:06:05,918 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:05,919 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 86 treesize of output 94 [2024-12-02 09:06:06,596 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:06,596 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 173 treesize of output 83 [2024-12-02 09:06:06,829 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 09:06:06,829 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:06:06,829 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:06:06,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040851499] [2024-12-02 09:06:06,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1040851499] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:06:06,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:06:06,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 09:06:06,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883965834] [2024-12-02 09:06:06,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:06:06,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 09:06:06,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:06:06,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 09:06:06,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-12-02 09:06:06,831 INFO L87 Difference]: Start difference. First operand 294 states and 362 transitions. Second operand has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-12-02 09:06:10,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:06:12,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 09:06:25,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:06:25,692 INFO L93 Difference]: Finished difference Result 705 states and 855 transitions. [2024-12-02 09:06:25,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 09:06:25,699 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 181 [2024-12-02 09:06:25,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:06:25,701 INFO L225 Difference]: With dead ends: 705 [2024-12-02 09:06:25,701 INFO L226 Difference]: Without dead ends: 496 [2024-12-02 09:06:25,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2024-12-02 09:06:25,702 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 361 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 41 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:06:25,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 1425 Invalid, 1804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1758 Invalid, 5 Unknown, 0 Unchecked, 18.2s Time] [2024-12-02 09:06:25,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-12-02 09:06:25,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 327. [2024-12-02 09:06:25,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 272 states have (on average 1.1985294117647058) internal successors, (326), 273 states have internal predecessors, (326), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 09:06:25,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 402 transitions. [2024-12-02 09:06:25,798 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 402 transitions. Word has length 181 [2024-12-02 09:06:25,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:06:25,798 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 402 transitions. [2024-12-02 09:06:25,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-12-02 09:06:25,798 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 402 transitions. [2024-12-02 09:06:25,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 09:06:25,799 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:06:25,799 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:25,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (28)] Ended with exit code 0 [2024-12-02 09:06:26,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:06:26,000 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:06:26,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:06:26,000 INFO L85 PathProgramCache]: Analyzing trace with hash 717926513, now seen corresponding path program 1 times [2024-12-02 09:06:26,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:06:26,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [656142805] [2024-12-02 09:06:26,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:06:26,001 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 09:06:26,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:06:26,002 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:06:26,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (29)] Waiting until timeout for monitored process [2024-12-02 09:06:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:06:26,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-02 09:06:26,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:06:26,595 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 09:06:26,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-12-02 09:06:27,616 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:27,617 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 59 treesize of output 49 [2024-12-02 09:06:28,081 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:28,081 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 74 treesize of output 52 [2024-12-02 09:06:28,425 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:28,425 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 74 treesize of output 52 [2024-12-02 09:06:28,800 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:28,800 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 70 treesize of output 52 [2024-12-02 09:06:28,847 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:28,847 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 91 treesize of output 62 [2024-12-02 09:06:29,018 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:29,018 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 84 treesize of output 65 [2024-12-02 09:06:29,517 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:29,518 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 92 treesize of output 91 [2024-12-02 09:06:29,953 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:29,953 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 108 treesize of output 48 [2024-12-02 09:06:30,090 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 477 proven. 72 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-12-02 09:06:30,090 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:06:30,619 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-02 09:06:30,619 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:06:30,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [656142805] [2024-12-02 09:06:30,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [656142805] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 09:06:30,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:06:30,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [24] total 27 [2024-12-02 09:06:30,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694677648] [2024-12-02 09:06:30,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:06:30,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:06:30,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:06:30,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:06:30,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2024-12-02 09:06:30,621 INFO L87 Difference]: Start difference. First operand 327 states and 402 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:06:33,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:06:33,317 INFO L93 Difference]: Finished difference Result 668 states and 814 transitions. [2024-12-02 09:06:33,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:06:33,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 181 [2024-12-02 09:06:33,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:06:33,319 INFO L225 Difference]: With dead ends: 668 [2024-12-02 09:06:33,319 INFO L226 Difference]: Without dead ends: 426 [2024-12-02 09:06:33,320 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2024-12-02 09:06:33,320 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 172 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 09:06:33,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 371 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 09:06:33,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-12-02 09:06:33,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 327. [2024-12-02 09:06:33,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 272 states have (on average 1.1911764705882353) internal successors, (324), 273 states have internal predecessors, (324), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 09:06:33,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 400 transitions. [2024-12-02 09:06:33,431 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 400 transitions. Word has length 181 [2024-12-02 09:06:33,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:06:33,431 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 400 transitions. [2024-12-02 09:06:33,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:06:33,431 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 400 transitions. [2024-12-02 09:06:33,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 09:06:33,432 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:06:33,432 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:33,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (29)] Ended with exit code 0 [2024-12-02 09:06:33,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:06:33,633 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:06:33,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:06:33,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1604981361, now seen corresponding path program 1 times [2024-12-02 09:06:33,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:06:33,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762215466] [2024-12-02 09:06:33,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:06:33,633 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 09:06:33,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:06:33,635 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:06:33,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (30)] Waiting until timeout for monitored process [2024-12-02 09:06:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:06:34,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 09:06:34,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:06:34,268 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 09:06:34,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-12-02 09:06:35,284 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:35,284 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 64 treesize of output 39 [2024-12-02 09:06:35,532 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:35,532 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 59 treesize of output 49 [2024-12-02 09:06:35,975 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:35,976 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 74 treesize of output 52 [2024-12-02 09:06:36,364 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:36,364 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 70 treesize of output 52 [2024-12-02 09:06:36,401 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:36,402 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 91 treesize of output 62 [2024-12-02 09:06:36,579 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:36,579 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 84 treesize of output 65 [2024-12-02 09:06:37,081 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:37,082 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 93 treesize of output 92 [2024-12-02 09:06:37,503 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:37,503 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 109 treesize of output 49 [2024-12-02 09:06:37,663 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 509 proven. 72 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-12-02 09:06:37,663 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:06:38,155 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-02 09:06:38,155 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:06:38,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [762215466] [2024-12-02 09:06:38,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [762215466] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 09:06:38,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:06:38,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [24] total 27 [2024-12-02 09:06:38,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078691059] [2024-12-02 09:06:38,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:06:38,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:06:38,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:06:38,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:06:38,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2024-12-02 09:06:38,157 INFO L87 Difference]: Start difference. First operand 327 states and 400 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:06:39,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:06:41,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:06:41,752 INFO L93 Difference]: Finished difference Result 668 states and 810 transitions. [2024-12-02 09:06:41,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:06:41,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 181 [2024-12-02 09:06:41,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:06:41,754 INFO L225 Difference]: With dead ends: 668 [2024-12-02 09:06:41,754 INFO L226 Difference]: Without dead ends: 426 [2024-12-02 09:06:41,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2024-12-02 09:06:41,755 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 170 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:06:41,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 521 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 09:06:41,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-12-02 09:06:41,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 327. [2024-12-02 09:06:41,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 272 states have (on average 1.1838235294117647) internal successors, (322), 273 states have internal predecessors, (322), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 09:06:41,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 398 transitions. [2024-12-02 09:06:41,824 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 398 transitions. Word has length 181 [2024-12-02 09:06:41,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:06:41,824 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 398 transitions. [2024-12-02 09:06:41,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:06:41,824 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 398 transitions. [2024-12-02 09:06:41,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 09:06:41,825 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:06:41,825 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:41,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (30)] Ended with exit code 0 [2024-12-02 09:06:42,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:06:42,026 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:06:42,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:06:42,026 INFO L85 PathProgramCache]: Analyzing trace with hash 583913007, now seen corresponding path program 1 times [2024-12-02 09:06:42,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:06:42,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618353646] [2024-12-02 09:06:42,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:06:42,027 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 09:06:42,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:06:42,028 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:06:42,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (31)] Waiting until timeout for monitored process [2024-12-02 09:06:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:06:42,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-12-02 09:06:42,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:06:42,639 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 14 treesize of output 10 [2024-12-02 09:06:42,863 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 36 treesize of output 29 [2024-12-02 09:06:43,129 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:43,130 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 35 treesize of output 37 [2024-12-02 09:06:43,472 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:43,473 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 45 treesize of output 50 [2024-12-02 09:06:43,884 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:43,885 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 60 treesize of output 53 [2024-12-02 09:06:44,230 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:44,231 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 55 treesize of output 63 [2024-12-02 09:06:44,729 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:44,730 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 70 treesize of output 66 [2024-12-02 09:06:45,130 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:45,130 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 70 treesize of output 66 [2024-12-02 09:06:45,586 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:45,587 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 66 treesize of output 66 [2024-12-02 09:06:45,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:45,638 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 87 treesize of output 76 [2024-12-02 09:06:45,819 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:45,819 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 80 treesize of output 79 [2024-12-02 09:06:46,348 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:46,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 106 treesize of output 111 [2024-12-02 09:06:47,460 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:06:47,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 193 treesize of output 91 [2024-12-02 09:06:47,754 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 663 proven. 45 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-12-02 09:06:47,754 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:06:48,897 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-02 09:06:48,897 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:06:48,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618353646] [2024-12-02 09:06:48,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618353646] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 09:06:48,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:06:48,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [21] total 28 [2024-12-02 09:06:48,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064358554] [2024-12-02 09:06:48,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:06:48,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 09:06:48,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:06:48,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 09:06:48,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2024-12-02 09:06:48,900 INFO L87 Difference]: Start difference. First operand 327 states and 398 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:06:51,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:06:52,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:06:54,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:07:01,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:07:01,775 INFO L93 Difference]: Finished difference Result 645 states and 780 transitions. [2024-12-02 09:07:01,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 09:07:01,776 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 181 [2024-12-02 09:07:01,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:07:01,777 INFO L225 Difference]: With dead ends: 645 [2024-12-02 09:07:01,777 INFO L226 Difference]: Without dead ends: 403 [2024-12-02 09:07:01,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=161, Invalid=1029, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 09:07:01,778 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 83 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:07:01,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1593 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2024-12-02 09:07:01,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-12-02 09:07:01,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 315. [2024-12-02 09:07:01,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 260 states have (on average 1.1846153846153846) internal successors, (308), 261 states have internal predecessors, (308), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 09:07:01,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 384 transitions. [2024-12-02 09:07:01,858 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 384 transitions. Word has length 181 [2024-12-02 09:07:01,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:07:01,858 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 384 transitions. [2024-12-02 09:07:01,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:07:01,859 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 384 transitions. [2024-12-02 09:07:01,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-12-02 09:07:01,860 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:07:01,860 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:01,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (31)] Ended with exit code 0 [2024-12-02 09:07:02,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:07:02,060 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:07:02,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:07:02,061 INFO L85 PathProgramCache]: Analyzing trace with hash 996915148, now seen corresponding path program 1 times [2024-12-02 09:07:02,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:07:02,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250155487] [2024-12-02 09:07:02,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:02,062 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 09:07:02,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:07:02,063 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:07:02,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (32)] Waiting until timeout for monitored process [2024-12-02 09:07:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:02,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-02 09:07:02,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:07:02,924 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 09:07:02,994 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 09:07:03,056 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 09:07:03,117 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 09:07:03,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2024-12-02 09:07:03,696 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:07:03,697 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 47 treesize of output 52 [2024-12-02 09:07:04,459 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:07:04,460 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 73 treesize of output 60 [2024-12-02 09:07:04,862 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:07:04,863 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 69 treesize of output 60 [2024-12-02 09:07:05,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 21 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 81 [2024-12-02 09:07:05,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:07:05,349 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 129 treesize of output 98 [2024-12-02 09:07:05,369 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 637 proven. 48 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-12-02 09:07:05,369 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:07:06,126 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-12-02 09:07:06,126 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:07:06,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250155487] [2024-12-02 09:07:06,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250155487] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 09:07:06,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:07:06,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 20 [2024-12-02 09:07:06,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585123302] [2024-12-02 09:07:06,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:07:06,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:07:06,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:07:06,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:07:06,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2024-12-02 09:07:06,127 INFO L87 Difference]: Start difference. First operand 315 states and 384 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:07:13,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:07:13,725 INFO L93 Difference]: Finished difference Result 555 states and 669 transitions. [2024-12-02 09:07:13,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:07:13,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 183 [2024-12-02 09:07:13,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:07:13,727 INFO L225 Difference]: With dead ends: 555 [2024-12-02 09:07:13,727 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 09:07:13,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 345 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2024-12-02 09:07:13,727 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 116 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:07:13,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 324 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2024-12-02 09:07:13,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 09:07:13,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 09:07:13,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:07:13,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 09:07:13,729 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 183 [2024-12-02 09:07:13,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:07:13,729 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 09:07:13,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-12-02 09:07:13,729 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 09:07:13,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 09:07:13,731 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 09:07:13,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 (32)] Ended with exit code 0 [2024-12-02 09:07:13,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07f57bc-894a-466d-8662-2b9f019fe2c4/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 09:07:13,933 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 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 09:07:13,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 09:07:23,551 WARN L286 SmtUtils]: Spent 7.48s on a formula simplification. DAG size of input: 178 DAG size of output: 215 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:07:41,825 WARN L286 SmtUtils]: Spent 14.43s on a formula simplification. DAG size of input: 356 DAG size of output: 383 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:07:52,721 WARN L286 SmtUtils]: Spent 10.44s on a formula simplification. DAG size of input: 325 DAG size of output: 356 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:08:05,621 WARN L286 SmtUtils]: Spent 10.38s on a formula simplification. DAG size of input: 325 DAG size of output: 356 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:08:15,936 WARN L286 SmtUtils]: Spent 10.31s on a formula simplification. DAG size of input: 325 DAG size of output: 356 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:08:30,560 WARN L286 SmtUtils]: Spent 9.84s on a formula simplification. DAG size of input: 327 DAG size of output: 337 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:08:51,731 WARN L286 SmtUtils]: Spent 10.26s on a formula simplification. DAG size of input: 193 DAG size of output: 205 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:09:03,784 WARN L286 SmtUtils]: Spent 9.84s on a formula simplification. DAG size of input: 327 DAG size of output: 337 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:09:13,668 WARN L286 SmtUtils]: Spent 9.86s on a formula simplification. DAG size of input: 327 DAG size of output: 337 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:09:24,863 WARN L286 SmtUtils]: Spent 11.19s on a formula simplification. DAG size of input: 192 DAG size of output: 203 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:09:41,445 WARN L286 SmtUtils]: Spent 9.83s on a formula simplification. DAG size of input: 327 DAG size of output: 337 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:09:55,774 WARN L286 SmtUtils]: Spent 7.39s on a formula simplification. DAG size of input: 178 DAG size of output: 215 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:10:06,118 WARN L286 SmtUtils]: Spent 10.34s on a formula simplification. DAG size of input: 325 DAG size of output: 356 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:10:22,032 WARN L286 SmtUtils]: Spent 15.91s on a formula simplification. DAG size of input: 200 DAG size of output: 254 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:10:28,847 WARN L286 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 189 DAG size of output: 189 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:10:49,167 WARN L286 SmtUtils]: Spent 11.11s on a formula simplification. DAG size of input: 333 DAG size of output: 334 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:11:21,122 WARN L286 SmtUtils]: Spent 31.13s on a formula simplification. DAG size of input: 211 DAG size of output: 241 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:11:27,503 WARN L286 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 190 DAG size of output: 207 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:11:32,903 WARN L286 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 189 DAG size of output: 189 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:11:51,765 WARN L286 SmtUtils]: Spent 18.33s on a formula simplification. DAG size of input: 199 DAG size of output: 213 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:12:16,106 WARN L286 SmtUtils]: Spent 24.30s on a formula simplification. DAG size of input: 189 DAG size of output: 218 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:12:27,064 WARN L286 SmtUtils]: Spent 10.93s on a formula simplification. DAG size of input: 333 DAG size of output: 334 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:12:37,818 WARN L286 SmtUtils]: Spent 10.72s on a formula simplification. DAG size of input: 333 DAG size of output: 334 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:12:55,895 WARN L286 SmtUtils]: Spent 18.08s on a formula simplification. DAG size of input: 198 DAG size of output: 200 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:13:27,774 WARN L286 SmtUtils]: Spent 31.88s on a formula simplification. DAG size of input: 211 DAG size of output: 241 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:13:37,296 WARN L286 SmtUtils]: Spent 9.52s on a formula simplification. DAG size of input: 250 DAG size of output: 272 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:14:01,726 WARN L286 SmtUtils]: Spent 24.43s on a formula simplification. DAG size of input: 189 DAG size of output: 218 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:14:11,630 WARN L286 SmtUtils]: Spent 9.90s on a formula simplification. DAG size of input: 250 DAG size of output: 272 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:14:22,398 WARN L286 SmtUtils]: Spent 10.77s on a formula simplification. DAG size of input: 333 DAG size of output: 334 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:14:28,897 WARN L286 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 190 DAG size of output: 207 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-12-02 09:15:59,779 WARN L286 SmtUtils]: Spent 58.30s on a formula simplification. DAG size of input: 1622 DAG size of output: 105 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter)