./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.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_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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_40ada95b-cea4-4271-bdea-669baa88e788/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 e67445e12651560afd9610d5a103069fc2fc9d028994dc4bd874cfab54748c3d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:22:49,504 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:22:49,558 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 15:22:49,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:22:49,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:22:49,584 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:22:49,584 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:22:49,584 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:22:49,585 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:22:49,585 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:22:49,585 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:22:49,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:22:49,585 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:22:49,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:22:49,586 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:22:49,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:22:49,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:22:49,586 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:22:49,586 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:22:49,586 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:22:49,586 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:22:49,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:22:49,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:22:49,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:22:49,587 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:22:49,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:22:49,587 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:22:49,587 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:22:49,587 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:22:49,587 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:22:49,587 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:22:49,587 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:22:49,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:22:49,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:22:49,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:22:49,588 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:22:49,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:22:49,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:22:49,588 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:22:49,588 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:22:49,588 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:22:49,588 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:22:49,588 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:22:49,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:22:49,589 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:22:49,589 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:22:49,589 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:22:49,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:22:49,589 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_40ada95b-cea4-4271-bdea-669baa88e788/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 -> e67445e12651560afd9610d5a103069fc2fc9d028994dc4bd874cfab54748c3d [2024-12-02 15:22:49,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:22:49,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:22:49,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:22:49,813 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:22:49,813 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:22:49,814 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i [2024-12-02 15:22:52,467 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/data/d7815771a/cec251b8453a44738f7f164d5dd5ce71/FLAG44834a7f6 [2024-12-02 15:22:52,703 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:22:52,703 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i [2024-12-02 15:22:52,712 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/data/d7815771a/cec251b8453a44738f7f164d5dd5ce71/FLAG44834a7f6 [2024-12-02 15:22:53,058 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/data/d7815771a/cec251b8453a44738f7f164d5dd5ce71 [2024-12-02 15:22:53,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:22:53,062 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:22:53,063 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:22:53,063 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:22:53,066 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:22:53,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:22:53" (1/1) ... [2024-12-02 15:22:53,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c08ebe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:22:53, skipping insertion in model container [2024-12-02 15:22:53,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:22:53" (1/1) ... [2024-12-02 15:22:53,080 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:22:53,228 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_40ada95b-cea4-4271-bdea-669baa88e788/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i[916,929] [2024-12-02 15:22:53,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:22:53,308 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:22:53,322 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_40ada95b-cea4-4271-bdea-669baa88e788/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i[916,929] [2024-12-02 15:22:53,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:22:53,386 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:22:53,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:22:53 WrapperNode [2024-12-02 15:22:53,387 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:22:53,389 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:22:53,389 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:22:53,389 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:22:53,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:22:53" (1/1) ... [2024-12-02 15:22:53,411 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:22:53" (1/1) ... [2024-12-02 15:22:53,449 INFO L138 Inliner]: procedures = 30, calls = 145, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 431 [2024-12-02 15:22:53,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:22:53,450 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:22:53,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:22:53,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:22:53,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:22:53" (1/1) ... [2024-12-02 15:22:53,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:22:53" (1/1) ... [2024-12-02 15:22:53,468 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:22:53" (1/1) ... [2024-12-02 15:22:53,477 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-12-02 15:22:53,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:22:53" (1/1) ... [2024-12-02 15:22:53,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:22:53" (1/1) ... [2024-12-02 15:22:53,496 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:22:53" (1/1) ... [2024-12-02 15:22:53,497 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:22:53" (1/1) ... [2024-12-02 15:22:53,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:22:53" (1/1) ... [2024-12-02 15:22:53,505 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:22:53" (1/1) ... [2024-12-02 15:22:53,507 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:22:53" (1/1) ... [2024-12-02 15:22:53,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:22:53,513 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:22:53,513 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:22:53,513 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:22:53,514 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:22:53" (1/1) ... [2024-12-02 15:22:53,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:22:53,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:22:53,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:22:53,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:22:53,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:22:53,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-12-02 15:22:53,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-12-02 15:22:53,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-12-02 15:22:53,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 15:22:53,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-12-02 15:22:53,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 15:22:53,588 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 15:22:53,588 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 15:22:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 15:22:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:22:53,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:22:53,707 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:22:53,710 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:22:54,381 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-12-02 15:22:54,381 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:22:54,394 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:22:54,394 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 15:22:54,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:22:54 BoogieIcfgContainer [2024-12-02 15:22:54,394 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:22:54,397 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:22:54,397 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:22:54,402 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:22:54,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:22:53" (1/3) ... [2024-12-02 15:22:54,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6778609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:22:54, skipping insertion in model container [2024-12-02 15:22:54,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:22:53" (2/3) ... [2024-12-02 15:22:54,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6778609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:22:54, skipping insertion in model container [2024-12-02 15:22:54,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:22:54" (3/3) ... [2024-12-02 15:22:54,405 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-97.i [2024-12-02 15:22:54,419 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:22:54,421 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-97.i that has 2 procedures, 108 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 15:22:54,478 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:22:54,491 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;@409b61fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:22:54,491 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 15:22:54,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 88 states have (on average 1.3977272727272727) internal successors, (123), 89 states have internal predecessors, (123), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 15:22:54,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 15:22:54,508 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:22:54,509 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:22:54,509 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:22:54,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:22:54,515 INFO L85 PathProgramCache]: Analyzing trace with hash 322779117, now seen corresponding path program 1 times [2024-12-02 15:22:54,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:22:54,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85879042] [2024-12-02 15:22:54,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:22:54,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:22:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:22:54,921 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 15:22:54,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:22:54,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85879042] [2024-12-02 15:22:54,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85879042] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:22:54,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578818577] [2024-12-02 15:22:54,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:22:54,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:22:54,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:22:54,926 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:22:54,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:22:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:22:55,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 15:22:55,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:22:55,223 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 15:22:55,224 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:22:55,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578818577] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:22:55,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:22:55,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 15:22:55,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146398952] [2024-12-02 15:22:55,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:22:55,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 15:22:55,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:22:55,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 15:22:55,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:22:55,246 INFO L87 Difference]: Start difference. First operand has 108 states, 88 states have (on average 1.3977272727272727) internal successors, (123), 89 states have internal predecessors, (123), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:22:55,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:22:55,270 INFO L93 Difference]: Finished difference Result 209 states and 325 transitions. [2024-12-02 15:22:55,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 15:22:55,271 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-12-02 15:22:55,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:22:55,277 INFO L225 Difference]: With dead ends: 209 [2024-12-02 15:22:55,277 INFO L226 Difference]: Without dead ends: 104 [2024-12-02 15:22:55,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 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 15:22:55,282 INFO L435 NwaCegarLoop]: 150 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, 150 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 15:22:55,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:22:55,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-12-02 15:22:55,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-12-02 15:22:55,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 85 states have (on average 1.3647058823529412) internal successors, (116), 85 states have internal predecessors, (116), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 15:22:55,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 150 transitions. [2024-12-02 15:22:55,315 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 150 transitions. Word has length 134 [2024-12-02 15:22:55,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:22:55,315 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 150 transitions. [2024-12-02 15:22:55,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:22:55,316 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 150 transitions. [2024-12-02 15:22:55,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 15:22:55,319 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:22:55,319 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:22:55,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 15:22:55,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 15:22:55,520 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:22:55,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:22:55,520 INFO L85 PathProgramCache]: Analyzing trace with hash 468796107, now seen corresponding path program 1 times [2024-12-02 15:22:55,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:22:55,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938673912] [2024-12-02 15:22:55,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:22:55,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:22:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:22:55,905 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 15:22:55,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:22:55,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938673912] [2024-12-02 15:22:55,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938673912] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:22:55,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490520912] [2024-12-02 15:22:55,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:22:55,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:22:55,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:22:55,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:22:55,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 15:22:56,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:22:56,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:22:56,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:22:56,180 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:22:56,181 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:22:56,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490520912] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:22:56,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:22:56,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-12-02 15:22:56,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738907289] [2024-12-02 15:22:56,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:22:56,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:22:56,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:22:56,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:22:56,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:22:56,183 INFO L87 Difference]: Start difference. First operand 104 states and 150 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:22:56,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:22:56,231 INFO L93 Difference]: Finished difference Result 208 states and 301 transitions. [2024-12-02 15:22:56,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:22:56,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-12-02 15:22:56,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:22:56,234 INFO L225 Difference]: With dead ends: 208 [2024-12-02 15:22:56,234 INFO L226 Difference]: Without dead ends: 107 [2024-12-02 15:22:56,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:22:56,236 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 430 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 15:22:56,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 430 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:22:56,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-12-02 15:22:56,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2024-12-02 15:22:56,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 87 states have internal predecessors, (118), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 15:22:56,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 152 transitions. [2024-12-02 15:22:56,247 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 152 transitions. Word has length 134 [2024-12-02 15:22:56,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:22:56,249 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 152 transitions. [2024-12-02 15:22:56,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:22:56,250 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 152 transitions. [2024-12-02 15:22:56,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 15:22:56,252 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:22:56,252 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:22:56,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 15:22:56,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:22:56,453 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:22:56,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:22:56,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1148854477, now seen corresponding path program 1 times [2024-12-02 15:22:56,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:22:56,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604864864] [2024-12-02 15:22:56,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:22:56,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:22:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:22:56,714 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 15:22:56,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:22:56,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604864864] [2024-12-02 15:22:56,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604864864] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:22:56,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774308009] [2024-12-02 15:22:56,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:22:56,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:22:56,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:22:56,717 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:22:56,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 15:22:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:22:56,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:22:56,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:22:56,976 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:22:56,976 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:22:56,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774308009] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:22:56,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:22:56,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-12-02 15:22:56,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056313337] [2024-12-02 15:22:56,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:22:56,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:22:56,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:22:56,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:22:56,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:22:56,978 INFO L87 Difference]: Start difference. First operand 106 states and 152 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:22:57,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:22:57,012 INFO L93 Difference]: Finished difference Result 212 states and 305 transitions. [2024-12-02 15:22:57,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:22:57,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-12-02 15:22:57,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:22:57,015 INFO L225 Difference]: With dead ends: 212 [2024-12-02 15:22:57,015 INFO L226 Difference]: Without dead ends: 109 [2024-12-02 15:22:57,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:22:57,016 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 431 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 15:22:57,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 431 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:22:57,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-12-02 15:22:57,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2024-12-02 15:22:57,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 89 states have (on average 1.348314606741573) internal successors, (120), 89 states have internal predecessors, (120), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 15:22:57,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 154 transitions. [2024-12-02 15:22:57,025 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 154 transitions. Word has length 134 [2024-12-02 15:22:57,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:22:57,026 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 154 transitions. [2024-12-02 15:22:57,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:22:57,026 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 154 transitions. [2024-12-02 15:22:57,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 15:22:57,028 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:22:57,028 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:22:57,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 15:22:57,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:22:57,229 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:22:57,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:22:57,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1371105457, now seen corresponding path program 1 times [2024-12-02 15:22:57,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:22:57,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598126790] [2024-12-02 15:22:57,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:22:57,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:22:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:22:57,627 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 15:22:57,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:22:57,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598126790] [2024-12-02 15:22:57,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598126790] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:22:57,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904350727] [2024-12-02 15:22:57,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:22:57,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:22:57,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:22:57,630 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:22:57,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 15:22:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:22:57,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:22:57,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:22:58,000 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:22:58,000 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:22:58,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904350727] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:22:58,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:22:58,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-12-02 15:22:58,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198494313] [2024-12-02 15:22:58,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:22:58,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:22:58,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:22:58,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:22:58,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:22:58,003 INFO L87 Difference]: Start difference. First operand 108 states and 154 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:22:58,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:22:58,042 INFO L93 Difference]: Finished difference Result 216 states and 309 transitions. [2024-12-02 15:22:58,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:22:58,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-12-02 15:22:58,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:22:58,045 INFO L225 Difference]: With dead ends: 216 [2024-12-02 15:22:58,045 INFO L226 Difference]: Without dead ends: 111 [2024-12-02 15:22:58,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:22:58,047 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 433 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 15:22:58,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 433 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:22:58,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-12-02 15:22:58,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-12-02 15:22:58,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 91 states have (on average 1.3406593406593406) internal successors, (122), 91 states have internal predecessors, (122), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 15:22:58,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 156 transitions. [2024-12-02 15:22:58,059 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 156 transitions. Word has length 134 [2024-12-02 15:22:58,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:22:58,060 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 156 transitions. [2024-12-02 15:22:58,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:22:58,061 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 156 transitions. [2024-12-02 15:22:58,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 15:22:58,063 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:22:58,063 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:22:58,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 15:22:58,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:22:58,264 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:22:58,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:22:58,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1369258415, now seen corresponding path program 1 times [2024-12-02 15:22:58,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:22:58,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146336486] [2024-12-02 15:22:58,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:22:58,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:22:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:22:58,651 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 15:22:58,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:22:58,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146336486] [2024-12-02 15:22:58,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146336486] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:22:58,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969858582] [2024-12-02 15:22:58,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:22:58,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:22:58,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:22:58,657 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:22:58,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 15:22:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:22:58,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:22:58,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:22:59,000 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:22:59,000 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:22:59,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969858582] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:22:59,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:22:59,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-12-02 15:22:59,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725380235] [2024-12-02 15:22:59,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:22:59,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:22:59,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:22:59,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:22:59,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:22:59,002 INFO L87 Difference]: Start difference. First operand 110 states and 156 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:22:59,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:22:59,031 INFO L93 Difference]: Finished difference Result 219 states and 312 transitions. [2024-12-02 15:22:59,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:22:59,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-12-02 15:22:59,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:22:59,034 INFO L225 Difference]: With dead ends: 219 [2024-12-02 15:22:59,034 INFO L226 Difference]: Without dead ends: 112 [2024-12-02 15:22:59,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:22:59,036 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 433 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 15:22:59,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 433 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:22:59,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-12-02 15:22:59,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-12-02 15:22:59,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 93 states have (on average 1.3333333333333333) internal successors, (124), 93 states have internal predecessors, (124), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 15:22:59,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 158 transitions. [2024-12-02 15:22:59,046 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 158 transitions. Word has length 134 [2024-12-02 15:22:59,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:22:59,047 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 158 transitions. [2024-12-02 15:22:59,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:22:59,047 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 158 transitions. [2024-12-02 15:22:59,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 15:22:59,049 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:22:59,049 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:22:59,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 15:22:59,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:22:59,250 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:22:59,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:22:59,250 INFO L85 PathProgramCache]: Analyzing trace with hash -153349341, now seen corresponding path program 1 times [2024-12-02 15:22:59,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:22:59,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766709347] [2024-12-02 15:22:59,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:22:59,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:22:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:22:59,878 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:22:59,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:22:59,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766709347] [2024-12-02 15:22:59,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766709347] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:22:59,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:22:59,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:22:59,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285264791] [2024-12-02 15:22:59,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:22:59,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:22:59,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:22:59,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:22:59,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:22:59,880 INFO L87 Difference]: Start difference. First operand 112 states and 158 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:00,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:00,309 INFO L93 Difference]: Finished difference Result 332 states and 470 transitions. [2024-12-02 15:23:00,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:23:00,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-12-02 15:23:00,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:00,312 INFO L225 Difference]: With dead ends: 332 [2024-12-02 15:23:00,312 INFO L226 Difference]: Without dead ends: 223 [2024-12-02 15:23:00,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:23:00,314 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 130 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:00,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 519 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 15:23:00,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-12-02 15:23:00,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 123. [2024-12-02 15:23:00,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 104 states have (on average 1.3461538461538463) internal successors, (140), 104 states have internal predecessors, (140), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 15:23:00,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 174 transitions. [2024-12-02 15:23:00,328 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 174 transitions. Word has length 136 [2024-12-02 15:23:00,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:00,329 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 174 transitions. [2024-12-02 15:23:00,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:00,329 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 174 transitions. [2024-12-02 15:23:00,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 15:23:00,331 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:00,331 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:00,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 15:23:00,332 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:00,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:00,332 INFO L85 PathProgramCache]: Analyzing trace with hash -287362847, now seen corresponding path program 1 times [2024-12-02 15:23:00,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:00,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170960484] [2024-12-02 15:23:00,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:00,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:01,089 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:01,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:01,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170960484] [2024-12-02 15:23:01,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170960484] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:01,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:01,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:23:01,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083890087] [2024-12-02 15:23:01,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:01,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:23:01,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:01,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:23:01,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:23:01,092 INFO L87 Difference]: Start difference. First operand 123 states and 174 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:02,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:02,182 INFO L93 Difference]: Finished difference Result 335 states and 472 transitions. [2024-12-02 15:23:02,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:23:02,183 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-12-02 15:23:02,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:02,185 INFO L225 Difference]: With dead ends: 335 [2024-12-02 15:23:02,185 INFO L226 Difference]: Without dead ends: 215 [2024-12-02 15:23:02,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:23:02,187 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 237 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:02,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 389 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 15:23:02,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-12-02 15:23:02,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 125. [2024-12-02 15:23:02,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 106 states have internal predecessors, (142), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 15:23:02,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 176 transitions. [2024-12-02 15:23:02,202 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 176 transitions. Word has length 136 [2024-12-02 15:23:02,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:02,203 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 176 transitions. [2024-12-02 15:23:02,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:02,203 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 176 transitions. [2024-12-02 15:23:02,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 15:23:02,205 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:02,206 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:02,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 15:23:02,206 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:02,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:02,207 INFO L85 PathProgramCache]: Analyzing trace with hash 638900394, now seen corresponding path program 1 times [2024-12-02 15:23:02,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:02,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076729361] [2024-12-02 15:23:02,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:02,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:03,404 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 15:23:03,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:03,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076729361] [2024-12-02 15:23:03,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076729361] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:03,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173501561] [2024-12-02 15:23:03,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:03,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:03,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:03,407 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:03,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 15:23:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:03,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 15:23:03,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:03,864 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 33 treesize of output 17 [2024-12-02 15:23:03,909 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 33 treesize of output 17 [2024-12-02 15:23:03,955 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 33 treesize of output 17 [2024-12-02 15:23:03,999 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:03,999 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 55 treesize of output 35 [2024-12-02 15:23:04,096 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:04,096 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 42 treesize of output 47 [2024-12-02 15:23:04,171 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 149 treesize of output 113 [2024-12-02 15:23:04,187 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:04,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 113 treesize of output 165 [2024-12-02 15:23:04,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 83 [2024-12-02 15:23:04,495 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:04,495 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 181 treesize of output 67 [2024-12-02 15:23:04,527 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 276 proven. 18 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-12-02 15:23:04,527 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:23:04,996 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 15:23:04,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173501561] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:23:04,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:23:04,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 9] total 19 [2024-12-02 15:23:04,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807594942] [2024-12-02 15:23:04,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:23:04,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 15:23:04,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:04,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 15:23:04,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-12-02 15:23:04,999 INFO L87 Difference]: Start difference. First operand 125 states and 176 transitions. Second operand has 19 states, 17 states have (on average 4.529411764705882) internal successors, (77), 19 states have internal predecessors, (77), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2024-12-02 15:23:07,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:07,737 INFO L93 Difference]: Finished difference Result 469 states and 647 transitions. [2024-12-02 15:23:07,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-02 15:23:07,737 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 4.529411764705882) internal successors, (77), 19 states have internal predecessors, (77), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) Word has length 136 [2024-12-02 15:23:07,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:07,739 INFO L225 Difference]: With dead ends: 469 [2024-12-02 15:23:07,739 INFO L226 Difference]: Without dead ends: 347 [2024-12-02 15:23:07,741 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 262 SyntacticMatches, 7 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=315, Invalid=1245, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 15:23:07,741 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 626 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:07,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 886 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 15:23:07,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-12-02 15:23:07,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 295. [2024-12-02 15:23:07,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 244 states have (on average 1.3032786885245902) internal successors, (318), 247 states have internal predecessors, (318), 44 states have call successors, (44), 6 states have call predecessors, (44), 6 states have return successors, (44), 41 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 15:23:07,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 406 transitions. [2024-12-02 15:23:07,768 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 406 transitions. Word has length 136 [2024-12-02 15:23:07,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:07,768 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 406 transitions. [2024-12-02 15:23:07,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 4.529411764705882) internal successors, (77), 19 states have internal predecessors, (77), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2024-12-02 15:23:07,768 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 406 transitions. [2024-12-02 15:23:07,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 15:23:07,770 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:07,770 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:07,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 15:23:07,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:07,971 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:07,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:07,971 INFO L85 PathProgramCache]: Analyzing trace with hash 278043843, now seen corresponding path program 1 times [2024-12-02 15:23:07,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:07,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729794863] [2024-12-02 15:23:07,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:07,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:08,761 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 15:23:08,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:08,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729794863] [2024-12-02 15:23:08,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729794863] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:08,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789050965] [2024-12-02 15:23:08,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:08,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:08,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:08,764 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:08,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 15:23:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:09,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 15:23:09,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:09,180 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 33 treesize of output 17 [2024-12-02 15:23:09,225 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 33 treesize of output 17 [2024-12-02 15:23:09,274 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:09,274 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 55 treesize of output 53 [2024-12-02 15:23:09,390 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:09,390 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 57 treesize of output 68 [2024-12-02 15:23:09,467 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 164 treesize of output 124 [2024-12-02 15:23:09,477 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:09,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 124 treesize of output 182 [2024-12-02 15:23:09,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 90 [2024-12-02 15:23:09,867 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:09,868 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 211 treesize of output 73 [2024-12-02 15:23:09,890 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-12-02 15:23:09,890 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:23:10,173 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 15:23:10,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789050965] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:23:10,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:23:10,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 9] total 20 [2024-12-02 15:23:10,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295060151] [2024-12-02 15:23:10,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:23:10,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 15:23:10,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:10,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 15:23:10,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2024-12-02 15:23:10,175 INFO L87 Difference]: Start difference. First operand 295 states and 406 transitions. Second operand has 20 states, 17 states have (on average 4.823529411764706) internal successors, (82), 20 states have internal predecessors, (82), 5 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 5 states have call successors, (23) [2024-12-02 15:23:12,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:12,875 INFO L93 Difference]: Finished difference Result 779 states and 1054 transitions. [2024-12-02 15:23:12,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-12-02 15:23:12,876 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 4.823529411764706) internal successors, (82), 20 states have internal predecessors, (82), 5 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 5 states have call successors, (23) Word has length 136 [2024-12-02 15:23:12,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:12,881 INFO L225 Difference]: With dead ends: 779 [2024-12-02 15:23:12,881 INFO L226 Difference]: Without dead ends: 508 [2024-12-02 15:23:12,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 261 SyntacticMatches, 6 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=344, Invalid=1462, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 15:23:12,884 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 533 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 2115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:12,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 1313 Invalid, 2115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 15:23:12,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-12-02 15:23:12,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 253. [2024-12-02 15:23:12,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 211 states have (on average 1.3033175355450237) internal successors, (275), 213 states have internal predecessors, (275), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:23:12,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 343 transitions. [2024-12-02 15:23:12,922 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 343 transitions. Word has length 136 [2024-12-02 15:23:12,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:12,923 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 343 transitions. [2024-12-02 15:23:12,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 4.823529411764706) internal successors, (82), 20 states have internal predecessors, (82), 5 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (23), 2 states have call predecessors, (23), 5 states have call successors, (23) [2024-12-02 15:23:12,923 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 343 transitions. [2024-12-02 15:23:12,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 15:23:12,925 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:12,925 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:12,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 15:23:13,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-12-02 15:23:13,126 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:13,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:13,127 INFO L85 PathProgramCache]: Analyzing trace with hash 144030337, now seen corresponding path program 1 times [2024-12-02 15:23:13,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:13,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43187753] [2024-12-02 15:23:13,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:13,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:13,929 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 15:23:13,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:13,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43187753] [2024-12-02 15:23:13,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43187753] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:13,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864138806] [2024-12-02 15:23:13,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:13,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:13,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:13,933 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:13,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 15:23:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:14,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 15:23:14,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:14,282 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 33 treesize of output 17 [2024-12-02 15:23:14,316 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 33 treesize of output 17 [2024-12-02 15:23:14,348 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 33 treesize of output 17 [2024-12-02 15:23:14,385 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:14,386 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 55 treesize of output 53 [2024-12-02 15:23:14,422 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:14,422 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 73 treesize of output 31 [2024-12-02 15:23:14,432 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 276 proven. 18 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-12-02 15:23:14,432 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:23:14,663 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 15:23:14,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864138806] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:23:14,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:23:14,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 12 [2024-12-02 15:23:14,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096704002] [2024-12-02 15:23:14,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:23:14,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 15:23:14,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:14,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 15:23:14,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:23:14,665 INFO L87 Difference]: Start difference. First operand 253 states and 343 transitions. Second operand has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 12 states have internal predecessors, (67), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 5 states have call successors, (25) [2024-12-02 15:23:15,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:15,997 INFO L93 Difference]: Finished difference Result 465 states and 629 transitions. [2024-12-02 15:23:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 15:23:15,998 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 12 states have internal predecessors, (67), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 5 states have call successors, (25) Word has length 136 [2024-12-02 15:23:15,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:16,000 INFO L225 Difference]: With dead ends: 465 [2024-12-02 15:23:16,000 INFO L226 Difference]: Without dead ends: 242 [2024-12-02 15:23:16,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 266 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-12-02 15:23:16,001 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 98 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:16,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 437 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 15:23:16,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-12-02 15:23:16,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 240. [2024-12-02 15:23:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 198 states have (on average 1.2878787878787878) internal successors, (255), 200 states have internal predecessors, (255), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:23:16,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 323 transitions. [2024-12-02 15:23:16,029 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 323 transitions. Word has length 136 [2024-12-02 15:23:16,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:16,030 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 323 transitions. [2024-12-02 15:23:16,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.444444444444445) internal successors, (67), 12 states have internal predecessors, (67), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 5 states have call successors, (25) [2024-12-02 15:23:16,030 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 323 transitions. [2024-12-02 15:23:16,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 15:23:16,032 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:16,032 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:16,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 15:23:16,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 15:23:16,233 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:16,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:16,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1439137510, now seen corresponding path program 1 times [2024-12-02 15:23:16,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:16,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844416145] [2024-12-02 15:23:16,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:16,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:16,547 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:16,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:16,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844416145] [2024-12-02 15:23:16,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844416145] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:16,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:16,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:23:16,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955672703] [2024-12-02 15:23:16,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:16,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 15:23:16,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:16,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 15:23:16,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:23:16,549 INFO L87 Difference]: Start difference. First operand 240 states and 323 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:17,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:17,174 INFO L93 Difference]: Finished difference Result 666 states and 897 transitions. [2024-12-02 15:23:17,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:23:17,174 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 137 [2024-12-02 15:23:17,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:17,177 INFO L225 Difference]: With dead ends: 666 [2024-12-02 15:23:17,177 INFO L226 Difference]: Without dead ends: 456 [2024-12-02 15:23:17,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:23:17,179 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 129 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:17,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 1318 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 15:23:17,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-12-02 15:23:17,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 252. [2024-12-02 15:23:17,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 210 states have (on average 1.2904761904761906) internal successors, (271), 212 states have internal predecessors, (271), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:23:17,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 339 transitions. [2024-12-02 15:23:17,213 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 339 transitions. Word has length 137 [2024-12-02 15:23:17,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:17,214 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 339 transitions. [2024-12-02 15:23:17,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:17,214 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 339 transitions. [2024-12-02 15:23:17,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 15:23:17,215 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:17,216 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:17,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 15:23:17,216 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:17,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:17,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1929566545, now seen corresponding path program 1 times [2024-12-02 15:23:17,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:17,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127456058] [2024-12-02 15:23:17,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:17,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:17,643 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:17,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:17,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127456058] [2024-12-02 15:23:17,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127456058] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:17,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:17,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:23:17,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019304824] [2024-12-02 15:23:17,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:17,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:23:17,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:17,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:23:17,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:17,646 INFO L87 Difference]: Start difference. First operand 252 states and 339 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:18,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:18,050 INFO L93 Difference]: Finished difference Result 674 states and 906 transitions. [2024-12-02 15:23:18,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:23:18,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 137 [2024-12-02 15:23:18,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:18,054 INFO L225 Difference]: With dead ends: 674 [2024-12-02 15:23:18,054 INFO L226 Difference]: Without dead ends: 452 [2024-12-02 15:23:18,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:23:18,056 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 126 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:18,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 479 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:23:18,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-12-02 15:23:18,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 253. [2024-12-02 15:23:18,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 211 states have (on average 1.2890995260663507) internal successors, (272), 213 states have internal predecessors, (272), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:23:18,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 340 transitions. [2024-12-02 15:23:18,090 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 340 transitions. Word has length 137 [2024-12-02 15:23:18,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:18,091 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 340 transitions. [2024-12-02 15:23:18,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:18,091 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 340 transitions. [2024-12-02 15:23:18,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 15:23:18,093 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:18,093 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:18,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 15:23:18,093 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:18,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:18,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1789017935, now seen corresponding path program 1 times [2024-12-02 15:23:18,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:18,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136223871] [2024-12-02 15:23:18,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:18,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:18,561 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:18,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:18,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136223871] [2024-12-02 15:23:18,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136223871] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:18,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:18,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:23:18,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896586642] [2024-12-02 15:23:18,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:18,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:23:18,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:18,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:23:18,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:23:18,563 INFO L87 Difference]: Start difference. First operand 253 states and 340 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:18,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:18,764 INFO L93 Difference]: Finished difference Result 476 states and 640 transitions. [2024-12-02 15:23:18,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:23:18,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 137 [2024-12-02 15:23:18,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:18,766 INFO L225 Difference]: With dead ends: 476 [2024-12-02 15:23:18,766 INFO L226 Difference]: Without dead ends: 253 [2024-12-02 15:23:18,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:23:18,767 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 209 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:18,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 181 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:23:18,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-12-02 15:23:18,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 228. [2024-12-02 15:23:18,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 186 states have (on average 1.2580645161290323) internal successors, (234), 188 states have internal predecessors, (234), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:23:18,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 302 transitions. [2024-12-02 15:23:18,788 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 302 transitions. Word has length 137 [2024-12-02 15:23:18,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:18,788 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 302 transitions. [2024-12-02 15:23:18,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:18,788 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 302 transitions. [2024-12-02 15:23:18,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 15:23:18,790 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:18,790 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:18,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 15:23:18,790 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:18,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:18,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1036036344, now seen corresponding path program 1 times [2024-12-02 15:23:18,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:18,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016923769] [2024-12-02 15:23:18,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:18,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:19,545 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:19,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:19,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016923769] [2024-12-02 15:23:19,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016923769] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:19,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:19,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:23:19,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732613334] [2024-12-02 15:23:19,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:19,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:23:19,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:19,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:23:19,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:19,547 INFO L87 Difference]: Start difference. First operand 228 states and 302 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:20,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:20,137 INFO L93 Difference]: Finished difference Result 585 states and 772 transitions. [2024-12-02 15:23:20,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:23:20,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138 [2024-12-02 15:23:20,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:20,140 INFO L225 Difference]: With dead ends: 585 [2024-12-02 15:23:20,140 INFO L226 Difference]: Without dead ends: 387 [2024-12-02 15:23:20,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:23:20,141 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 106 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:20,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 649 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 15:23:20,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-12-02 15:23:20,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 228. [2024-12-02 15:23:20,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 186 states have (on average 1.2473118279569892) internal successors, (232), 188 states have internal predecessors, (232), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:23:20,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 300 transitions. [2024-12-02 15:23:20,159 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 300 transitions. Word has length 138 [2024-12-02 15:23:20,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:20,159 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 300 transitions. [2024-12-02 15:23:20,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:20,159 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 300 transitions. [2024-12-02 15:23:20,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 15:23:20,160 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:20,160 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:20,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 15:23:20,160 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:20,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:20,161 INFO L85 PathProgramCache]: Analyzing trace with hash 822033323, now seen corresponding path program 1 times [2024-12-02 15:23:20,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:20,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639205901] [2024-12-02 15:23:20,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:20,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:20,947 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:20,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:20,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639205901] [2024-12-02 15:23:20,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639205901] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:20,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:20,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:23:20,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126756225] [2024-12-02 15:23:20,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:20,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:23:20,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:20,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:23:20,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:20,949 INFO L87 Difference]: Start difference. First operand 228 states and 300 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:21,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:21,425 INFO L93 Difference]: Finished difference Result 575 states and 754 transitions. [2024-12-02 15:23:21,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:23:21,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-12-02 15:23:21,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:21,427 INFO L225 Difference]: With dead ends: 575 [2024-12-02 15:23:21,427 INFO L226 Difference]: Without dead ends: 377 [2024-12-02 15:23:21,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:23:21,428 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 104 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:21,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 349 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 15:23:21,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-12-02 15:23:21,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 228. [2024-12-02 15:23:21,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 186 states have (on average 1.2365591397849462) internal successors, (230), 188 states have internal predecessors, (230), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:23:21,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 298 transitions. [2024-12-02 15:23:21,465 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 298 transitions. Word has length 139 [2024-12-02 15:23:21,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:21,465 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 298 transitions. [2024-12-02 15:23:21,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:21,465 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 298 transitions. [2024-12-02 15:23:21,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 15:23:21,467 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:21,467 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:21,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 15:23:21,467 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:21,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:21,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1893031359, now seen corresponding path program 1 times [2024-12-02 15:23:21,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:21,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425337452] [2024-12-02 15:23:21,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:21,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:23,550 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:23,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:23,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425337452] [2024-12-02 15:23:23,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425337452] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:23,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:23,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 15:23:23,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686184070] [2024-12-02 15:23:23,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:23,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:23:23,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:23,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:23:23,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:23:23,552 INFO L87 Difference]: Start difference. First operand 228 states and 298 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:23:24,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:24,130 INFO L93 Difference]: Finished difference Result 432 states and 562 transitions. [2024-12-02 15:23:24,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:23:24,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-12-02 15:23:24,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:24,132 INFO L225 Difference]: With dead ends: 432 [2024-12-02 15:23:24,132 INFO L226 Difference]: Without dead ends: 234 [2024-12-02 15:23:24,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:23:24,134 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 70 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:24,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 696 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 15:23:24,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-12-02 15:23:24,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 231. [2024-12-02 15:23:24,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 189 states have (on average 1.2328042328042328) internal successors, (233), 191 states have internal predecessors, (233), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:23:24,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 301 transitions. [2024-12-02 15:23:24,152 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 301 transitions. Word has length 139 [2024-12-02 15:23:24,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:24,152 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 301 transitions. [2024-12-02 15:23:24,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:23:24,153 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 301 transitions. [2024-12-02 15:23:24,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 15:23:24,154 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:24,154 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:24,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 15:23:24,154 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:24,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:24,155 INFO L85 PathProgramCache]: Analyzing trace with hash -11130563, now seen corresponding path program 1 times [2024-12-02 15:23:24,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:24,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638450680] [2024-12-02 15:23:24,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:24,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:26,811 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:26,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:26,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638450680] [2024-12-02 15:23:26,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638450680] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:26,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:26,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 15:23:26,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581996536] [2024-12-02 15:23:26,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:26,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:23:26,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:26,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:23:26,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:23:26,813 INFO L87 Difference]: Start difference. First operand 231 states and 301 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:27,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:27,309 INFO L93 Difference]: Finished difference Result 533 states and 694 transitions. [2024-12-02 15:23:27,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:23:27,310 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-12-02 15:23:27,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:27,312 INFO L225 Difference]: With dead ends: 533 [2024-12-02 15:23:27,312 INFO L226 Difference]: Without dead ends: 332 [2024-12-02 15:23:27,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:23:27,313 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 54 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:27,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 864 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 15:23:27,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-12-02 15:23:27,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 241. [2024-12-02 15:23:27,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 199 states have (on average 1.2311557788944723) internal successors, (245), 201 states have internal predecessors, (245), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:23:27,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2024-12-02 15:23:27,350 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 140 [2024-12-02 15:23:27,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:27,351 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2024-12-02 15:23:27,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:27,351 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2024-12-02 15:23:27,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 15:23:27,352 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:27,353 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:27,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 15:23:27,353 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:27,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:27,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1599478465, now seen corresponding path program 1 times [2024-12-02 15:23:27,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:27,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290926077] [2024-12-02 15:23:27,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:27,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:27,766 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:27,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:27,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290926077] [2024-12-02 15:23:27,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290926077] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:27,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:27,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:23:27,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305184292] [2024-12-02 15:23:27,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:27,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:23:27,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:27,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:23:27,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:23:27,768 INFO L87 Difference]: Start difference. First operand 241 states and 313 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:28,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:28,145 INFO L93 Difference]: Finished difference Result 665 states and 861 transitions. [2024-12-02 15:23:28,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:23:28,146 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-12-02 15:23:28,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:28,148 INFO L225 Difference]: With dead ends: 665 [2024-12-02 15:23:28,148 INFO L226 Difference]: Without dead ends: 454 [2024-12-02 15:23:28,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:23:28,149 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 122 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:28,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 399 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:23:28,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-12-02 15:23:28,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 274. [2024-12-02 15:23:28,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 232 states have (on average 1.2370689655172413) internal successors, (287), 234 states have internal predecessors, (287), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:23:28,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 355 transitions. [2024-12-02 15:23:28,182 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 355 transitions. Word has length 140 [2024-12-02 15:23:28,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:28,182 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 355 transitions. [2024-12-02 15:23:28,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:28,182 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 355 transitions. [2024-12-02 15:23:28,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 15:23:28,183 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:28,183 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:28,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 15:23:28,184 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:28,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:28,184 INFO L85 PathProgramCache]: Analyzing trace with hash 411571263, now seen corresponding path program 1 times [2024-12-02 15:23:28,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:28,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415869493] [2024-12-02 15:23:28,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:28,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:28,447 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:28,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:28,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415869493] [2024-12-02 15:23:28,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415869493] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:28,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:28,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:23:28,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764384125] [2024-12-02 15:23:28,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:28,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:23:28,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:28,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:23:28,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:23:28,449 INFO L87 Difference]: Start difference. First operand 274 states and 355 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:28,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:28,838 INFO L93 Difference]: Finished difference Result 682 states and 881 transitions. [2024-12-02 15:23:28,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:23:28,838 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-12-02 15:23:28,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:28,840 INFO L225 Difference]: With dead ends: 682 [2024-12-02 15:23:28,840 INFO L226 Difference]: Without dead ends: 438 [2024-12-02 15:23:28,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:23:28,841 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 124 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:28,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 444 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:23:28,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-12-02 15:23:28,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 266. [2024-12-02 15:23:28,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 224 states have (on average 1.2366071428571428) internal successors, (277), 226 states have internal predecessors, (277), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:23:28,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 345 transitions. [2024-12-02 15:23:28,859 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 345 transitions. Word has length 140 [2024-12-02 15:23:28,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:28,859 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 345 transitions. [2024-12-02 15:23:28,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:28,859 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 345 transitions. [2024-12-02 15:23:28,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 15:23:28,860 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:28,860 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:28,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 15:23:28,861 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:28,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:28,861 INFO L85 PathProgramCache]: Analyzing trace with hash -2108951555, now seen corresponding path program 1 times [2024-12-02 15:23:28,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:28,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964962097] [2024-12-02 15:23:28,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:28,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:29,285 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:29,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:29,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964962097] [2024-12-02 15:23:29,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964962097] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:29,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:29,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 15:23:29,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383031757] [2024-12-02 15:23:29,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:29,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:23:29,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:29,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:23:29,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:23:29,287 INFO L87 Difference]: Start difference. First operand 266 states and 345 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:29,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:29,654 INFO L93 Difference]: Finished difference Result 502 states and 650 transitions. [2024-12-02 15:23:29,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:23:29,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-12-02 15:23:29,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:29,655 INFO L225 Difference]: With dead ends: 502 [2024-12-02 15:23:29,655 INFO L226 Difference]: Without dead ends: 266 [2024-12-02 15:23:29,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:23:29,656 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 123 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:29,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 232 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:23:29,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-12-02 15:23:29,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 258. [2024-12-02 15:23:29,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 216 states have (on average 1.2268518518518519) internal successors, (265), 218 states have internal predecessors, (265), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:23:29,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 333 transitions. [2024-12-02 15:23:29,673 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 333 transitions. Word has length 140 [2024-12-02 15:23:29,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:29,673 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 333 transitions. [2024-12-02 15:23:29,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:29,673 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 333 transitions. [2024-12-02 15:23:29,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 15:23:29,674 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:29,674 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:29,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 15:23:29,674 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:29,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:29,675 INFO L85 PathProgramCache]: Analyzing trace with hash -97901827, now seen corresponding path program 1 times [2024-12-02 15:23:29,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:29,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207604854] [2024-12-02 15:23:29,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:29,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:30,106 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:30,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:30,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207604854] [2024-12-02 15:23:30,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207604854] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:30,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:30,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:23:30,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164984092] [2024-12-02 15:23:30,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:30,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:23:30,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:30,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:23:30,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:23:30,108 INFO L87 Difference]: Start difference. First operand 258 states and 333 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:30,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:30,467 INFO L93 Difference]: Finished difference Result 470 states and 608 transitions. [2024-12-02 15:23:30,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:23:30,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-12-02 15:23:30,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:30,470 INFO L225 Difference]: With dead ends: 470 [2024-12-02 15:23:30,470 INFO L226 Difference]: Without dead ends: 242 [2024-12-02 15:23:30,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:23:30,471 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 204 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:30,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 233 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:23:30,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-12-02 15:23:30,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 225. [2024-12-02 15:23:30,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 183 states have (on average 1.2076502732240437) internal successors, (221), 185 states have internal predecessors, (221), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:23:30,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 289 transitions. [2024-12-02 15:23:30,496 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 289 transitions. Word has length 140 [2024-12-02 15:23:30,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:30,496 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 289 transitions. [2024-12-02 15:23:30,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:30,496 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 289 transitions. [2024-12-02 15:23:30,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 15:23:30,497 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:30,497 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:30,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 15:23:30,497 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:30,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:30,498 INFO L85 PathProgramCache]: Analyzing trace with hash 356200390, now seen corresponding path program 1 times [2024-12-02 15:23:30,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:30,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086041281] [2024-12-02 15:23:30,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:30,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:30,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:30,905 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:30,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:30,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086041281] [2024-12-02 15:23:30,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086041281] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:30,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:30,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:23:30,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724059827] [2024-12-02 15:23:30,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:30,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:23:30,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:30,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:23:30,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:30,907 INFO L87 Difference]: Start difference. First operand 225 states and 289 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:23:31,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:31,096 INFO L93 Difference]: Finished difference Result 420 states and 538 transitions. [2024-12-02 15:23:31,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:23:31,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 142 [2024-12-02 15:23:31,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:31,098 INFO L225 Difference]: With dead ends: 420 [2024-12-02 15:23:31,098 INFO L226 Difference]: Without dead ends: 225 [2024-12-02 15:23:31,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:23:31,100 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 175 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:31,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 163 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:23:31,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-12-02 15:23:31,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2024-12-02 15:23:31,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 183 states have (on average 1.2021857923497268) internal successors, (220), 185 states have internal predecessors, (220), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:23:31,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 288 transitions. [2024-12-02 15:23:31,118 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 288 transitions. Word has length 142 [2024-12-02 15:23:31,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:31,119 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 288 transitions. [2024-12-02 15:23:31,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:23:31,119 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 288 transitions. [2024-12-02 15:23:31,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 15:23:31,120 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:31,120 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:31,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 15:23:31,120 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:31,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:31,120 INFO L85 PathProgramCache]: Analyzing trace with hash 698783729, now seen corresponding path program 1 times [2024-12-02 15:23:31,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:31,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887890886] [2024-12-02 15:23:31,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:31,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:32,038 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:32,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:32,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887890886] [2024-12-02 15:23:32,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887890886] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:32,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:32,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:23:32,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690352969] [2024-12-02 15:23:32,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:32,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:23:32,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:32,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:23:32,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:23:32,040 INFO L87 Difference]: Start difference. First operand 225 states and 288 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:32,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:32,773 INFO L93 Difference]: Finished difference Result 659 states and 839 transitions. [2024-12-02 15:23:32,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:23:32,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-12-02 15:23:32,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:32,776 INFO L225 Difference]: With dead ends: 659 [2024-12-02 15:23:32,776 INFO L226 Difference]: Without dead ends: 464 [2024-12-02 15:23:32,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:23:32,777 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 176 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:32,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 704 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 15:23:32,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-12-02 15:23:32,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 355. [2024-12-02 15:23:32,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 291 states have (on average 1.2130584192439862) internal successors, (353), 293 states have internal predecessors, (353), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 49 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 15:23:32,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 455 transitions. [2024-12-02 15:23:32,806 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 455 transitions. Word has length 143 [2024-12-02 15:23:32,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:32,806 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 455 transitions. [2024-12-02 15:23:32,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:32,806 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 455 transitions. [2024-12-02 15:23:32,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 15:23:32,807 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:32,807 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:32,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 15:23:32,807 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:32,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:32,808 INFO L85 PathProgramCache]: Analyzing trace with hash -166405358, now seen corresponding path program 1 times [2024-12-02 15:23:32,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:32,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924674565] [2024-12-02 15:23:32,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:32,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:33,299 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:33,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:33,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924674565] [2024-12-02 15:23:33,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924674565] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:33,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:33,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:23:33,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793009637] [2024-12-02 15:23:33,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:33,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:23:33,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:33,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:23:33,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:23:33,301 INFO L87 Difference]: Start difference. First operand 355 states and 455 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:33,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:33,553 INFO L93 Difference]: Finished difference Result 366 states and 468 transitions. [2024-12-02 15:23:33,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:23:33,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-12-02 15:23:33,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:33,555 INFO L225 Difference]: With dead ends: 366 [2024-12-02 15:23:33,556 INFO L226 Difference]: Without dead ends: 364 [2024-12-02 15:23:33,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 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 15:23:33,556 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 72 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:33,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 538 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:23:33,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-12-02 15:23:33,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2024-12-02 15:23:33,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 300 states have (on average 1.2066666666666668) internal successors, (362), 302 states have internal predecessors, (362), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 49 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 15:23:33,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 464 transitions. [2024-12-02 15:23:33,599 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 464 transitions. Word has length 143 [2024-12-02 15:23:33,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:33,599 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 464 transitions. [2024-12-02 15:23:33,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:33,600 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 464 transitions. [2024-12-02 15:23:33,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 15:23:33,601 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:33,601 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:33,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 15:23:33,601 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:33,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:33,602 INFO L85 PathProgramCache]: Analyzing trace with hash -164558316, now seen corresponding path program 1 times [2024-12-02 15:23:33,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:33,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223516890] [2024-12-02 15:23:33,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:33,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:23:33,709 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 15:23:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:23:33,821 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 15:23:33,821 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 15:23:33,822 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 15:23:33,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 15:23:33,827 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] [2024-12-02 15:23:33,871 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 15:23:33,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:23:33 BoogieIcfgContainer [2024-12-02 15:23:33,874 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 15:23:33,874 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 15:23:33,874 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 15:23:33,874 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 15:23:33,875 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:22:54" (3/4) ... [2024-12-02 15:23:33,877 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 15:23:33,877 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 15:23:33,878 INFO L158 Benchmark]: Toolchain (without parser) took 40816.51ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 117.3MB in the beginning and 177.2MB in the end (delta: -59.8MB). Peak memory consumption was 228.9MB. Max. memory is 16.1GB. [2024-12-02 15:23:33,878 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:23:33,878 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.25ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 101.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:23:33,879 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.93ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 97.8MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:23:33,879 INFO L158 Benchmark]: Boogie Preprocessor took 61.97ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 94.9MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 15:23:33,879 INFO L158 Benchmark]: RCFGBuilder took 881.72ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 65.6MB in the end (delta: 29.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 15:23:33,879 INFO L158 Benchmark]: TraceAbstraction took 39476.80ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 65.0MB in the beginning and 177.2MB in the end (delta: -112.3MB). Peak memory consumption was 170.2MB. Max. memory is 16.1GB. [2024-12-02 15:23:33,879 INFO L158 Benchmark]: Witness Printer took 3.22ms. Allocated memory is still 427.8MB. Free memory was 177.2MB in the beginning and 177.2MB in the end (delta: 57.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 15:23:33,881 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.25ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 101.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.93ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 97.8MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 61.97ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 94.9MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 881.72ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 65.6MB in the end (delta: 29.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 39476.80ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 65.0MB in the beginning and 177.2MB in the end (delta: -112.3MB). Peak memory consumption was 170.2MB. Max. memory is 16.1GB. * Witness Printer took 3.22ms. Allocated memory is still 427.8MB. Free memory was 177.2MB in the beginning and 177.2MB in the end (delta: 57.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 115, overapproximation of someBinaryFLOATComparisonOperation at line 63, overapproximation of someBinaryFLOATComparisonOperation at line 115, overapproximation of someBinaryFLOATComparisonOperation at line 120, overapproximation of someBinaryFLOATComparisonOperation at line 120. Possible FailurePath: [L39] unsigned char isInitial = 0; [L40-L56] struct WrapperStruct00 WrapperStruct00 = { 16, 32, 20113, 100, 100, -1, 16, 1, 0, 1, 10, 256, 32.5, 127.4, 128 }; VAL [WrapperStruct00={4:0}, isInitial=0] [L124] isInitial = 1 [L125] FCALL initially() [L127] FCALL updateLastVariables() [L128] CALL updateVariables() [L90] WrapperStruct00.var_1_7 = __VERIFIER_nondet_short() [L91] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= -1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= -1) VAL [WrapperStruct00={4:0}, isInitial=1] [L92] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 32766) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 32766) VAL [WrapperStruct00={4:0}, isInitial=1] [L93] WrapperStruct00.var_1_8 = __VERIFIER_nondet_short() [L94] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L94] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= 16383) VAL [WrapperStruct00={4:0}, isInitial=1] [L95] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 32766) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 32766) VAL [WrapperStruct00={4:0}, isInitial=1] [L96] WrapperStruct00.var_1_9 = __VERIFIER_nondet_short() [L97] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L97] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L98] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L98] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 16383) VAL [WrapperStruct00={4:0}, isInitial=1] [L99] WrapperStruct00.var_1_11 = __VERIFIER_nondet_char() [L100] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1] [L100] CALL assume_abort_if_not(WrapperStruct00.var_1_11 >= -63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L100] RET assume_abort_if_not(WrapperStruct00.var_1_11 >= -63) VAL [WrapperStruct00={4:0}, isInitial=1] [L101] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_11 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L101] RET assume_abort_if_not(WrapperStruct00.var_1_11 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1] [L102] WrapperStruct00.var_1_12 = __VERIFIER_nondet_char() [L103] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= -31) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L103] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= -31) VAL [WrapperStruct00={4:0}, isInitial=1] [L104] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 32) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L104] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 32) VAL [WrapperStruct00={4:0}, isInitial=1] [L105] WrapperStruct00.var_1_15 = __VERIFIER_nondet_uchar() [L106] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L106] CALL assume_abort_if_not(WrapperStruct00.var_1_15 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L106] RET assume_abort_if_not(WrapperStruct00.var_1_15 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L107] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_15 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L107] RET assume_abort_if_not(WrapperStruct00.var_1_15 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L108] WrapperStruct00.var_1_16 = __VERIFIER_nondet_uchar() [L109] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L109] CALL assume_abort_if_not(WrapperStruct00.var_1_16 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L109] RET assume_abort_if_not(WrapperStruct00.var_1_16 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L110] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_16 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L110] RET assume_abort_if_not(WrapperStruct00.var_1_16 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L111] WrapperStruct00.var_1_19 = __VERIFIER_nondet_ushort() [L112] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1] [L112] CALL assume_abort_if_not(WrapperStruct00.var_1_19 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L112] RET assume_abort_if_not(WrapperStruct00.var_1_19 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L113] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1] [L113] CALL assume_abort_if_not(WrapperStruct00.var_1_19 <= 65534) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L113] RET assume_abort_if_not(WrapperStruct00.var_1_19 <= 65534) VAL [WrapperStruct00={4:0}, isInitial=1] [L114] WrapperStruct00.var_1_21 = __VERIFIER_nondet_float() [L115] EXPR WrapperStruct00.var_1_21 [L115] EXPR WrapperStruct00.var_1_21 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_21 <= -1.0e-20F [L115] EXPR WrapperStruct00.var_1_21 [L115] EXPR WrapperStruct00.var_1_21 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_21 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L115] EXPR (WrapperStruct00.var_1_21 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_21 <= -1.0e-20F) || (WrapperStruct00.var_1_21 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_21 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L115] CALL assume_abort_if_not((WrapperStruct00.var_1_21 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_21 <= -1.0e-20F) || (WrapperStruct00.var_1_21 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_21 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L115] RET assume_abort_if_not((WrapperStruct00.var_1_21 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_21 <= -1.0e-20F) || (WrapperStruct00.var_1_21 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_21 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L128] RET updateVariables() [L129] CALL step() [L60] EXPR WrapperStruct00.var_1_19 [L60] WrapperStruct00.var_1_18 = WrapperStruct00.var_1_19 [L61] EXPR WrapperStruct00.var_1_21 [L61] WrapperStruct00.var_1_20 = WrapperStruct00.var_1_21 [L62] EXPR WrapperStruct00.var_1_12 [L62] WrapperStruct00.var_1_22 = WrapperStruct00.var_1_12 [L63] EXPR WrapperStruct00.var_1_20 VAL [WrapperStruct00={4:0}, isInitial=1] [L63] COND FALSE !(127.5f > WrapperStruct00.var_1_20) [L66] EXPR WrapperStruct00.var_1_20 [L66] EXPR WrapperStruct00.var_1_20 [L66] EXPR (WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L66] WrapperStruct00.var_1_13 = ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15) [L68] EXPR WrapperStruct00.var_1_18 [L68] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L68] COND TRUE WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7 [L69] EXPR WrapperStruct00.var_1_11 [L69] EXPR WrapperStruct00.var_1_12 [L69] WrapperStruct00.var_1_10 = (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)) [L77] WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1] [L77] COND TRUE WrapperStruct00.var_1_13 [L78] EXPR WrapperStruct00.var_1_10 [L78] EXPR WrapperStruct00.var_1_22 VAL [WrapperStruct00={4:0}, isInitial=1] [L78] COND FALSE !(WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) [L85] WrapperStruct00.var_1_1 = 8 VAL [WrapperStruct00={4:0}, isInitial=1] [L129] RET step() [L130] CALL, EXPR property() [L120] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1 [L120] EXPR WrapperStruct00.var_1_10 [L120] EXPR WrapperStruct00.var_1_22 VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR (WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8)) [L120] EXPR WrapperStruct00.var_1_1 [L120] EXPR (WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8)) VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR (WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1)) [L120] EXPR WrapperStruct00.var_1_18 [L120] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR (WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1) [L120] EXPR WrapperStruct00.var_1_10 [L120] EXPR WrapperStruct00.var_1_11 [L120] EXPR WrapperStruct00.var_1_12 [L120] EXPR (WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR (WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1)) VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR ((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15)))) [L120] EXPR WrapperStruct00.var_1_20 VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR (127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))) [L120] EXPR WrapperStruct00.var_1_13 [L120] EXPR WrapperStruct00.var_1_15 [L120] EXPR WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16 [L120] EXPR WrapperStruct00.var_1_16 [L120] EXPR WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR (127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))) VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR ((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15)))) VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR (((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))))) && (WrapperStruct00.var_1_18 == ((unsigned short int) WrapperStruct00.var_1_19)) [L120] EXPR WrapperStruct00.var_1_18 [L120] EXPR WrapperStruct00.var_1_19 [L120] EXPR (((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))))) && (WrapperStruct00.var_1_18 == ((unsigned short int) WrapperStruct00.var_1_19)) VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR ((((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))))) && (WrapperStruct00.var_1_18 == ((unsigned short int) WrapperStruct00.var_1_19))) && (WrapperStruct00.var_1_20 == ((float) WrapperStruct00.var_1_21)) [L120] EXPR WrapperStruct00.var_1_20 [L120] EXPR WrapperStruct00.var_1_21 [L120] EXPR ((((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))))) && (WrapperStruct00.var_1_18 == ((unsigned short int) WrapperStruct00.var_1_19))) && (WrapperStruct00.var_1_20 == ((float) WrapperStruct00.var_1_21)) VAL [WrapperStruct00={4:0}, isInitial=1] [L120] EXPR (((((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))))) && (WrapperStruct00.var_1_18 == ((unsigned short int) WrapperStruct00.var_1_19))) && (WrapperStruct00.var_1_20 == ((float) WrapperStruct00.var_1_21))) && (WrapperStruct00.var_1_22 == ((signed short int) WrapperStruct00.var_1_12)) VAL [WrapperStruct00={4:0}, isInitial=1] [L120-L121] return (((((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))))) && (WrapperStruct00.var_1_18 == ((unsigned short int) WrapperStruct00.var_1_19))) && (WrapperStruct00.var_1_20 == ((float) WrapperStruct00.var_1_21))) && (WrapperStruct00.var_1_22 == ((signed short int) WrapperStruct00.var_1_12)) ; [L130] RET, EXPR property() [L130] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 39.4s, OverallIterations: 25, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3497 SdHoareTripleChecker+Valid, 11.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3421 mSDsluCounter, 12670 SdHoareTripleChecker+Invalid, 10.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9480 mSDsCounter, 814 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8543 IncrementalHoareTripleChecker+Invalid, 9357 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 814 mSolverCounterUnsat, 3190 mSDtfsCounter, 8543 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1824 GetRequests, 1587 SyntacticMatches, 19 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 814 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=364occurred in iteration=24, InterpolantAutomatonStates: 197, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 24 MinimizatonAttempts, 1818 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 17.8s InterpolantComputationTime, 4526 NumberOfCodeBlocks, 4526 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 4756 ConstructedInterpolants, 0 QuantifiedInterpolants, 12548 SizeOfPredicates, 18 NumberOfNonLiveVariables, 3971 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 35 InterpolantComputations, 21 PerfectInterpolantSequences, 18840/19040 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 15:23:33,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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_40ada95b-cea4-4271-bdea-669baa88e788/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 e67445e12651560afd9610d5a103069fc2fc9d028994dc4bd874cfab54748c3d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:23:36,134 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:23:36,226 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 15:23:36,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:23:36,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:23:36,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:23:36,256 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:23:36,256 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:23:36,257 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:23:36,257 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:23:36,257 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:23:36,257 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:23:36,258 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:23:36,258 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:23:36,258 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:23:36,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:23:36,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:23:36,258 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:23:36,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:23:36,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:23:36,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:23:36,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:23:36,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:23:36,259 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 15:23:36,259 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 15:23:36,259 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 15:23:36,259 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:23:36,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:23:36,259 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:23:36,259 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:23:36,259 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:23:36,259 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:23:36,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:23:36,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:23:36,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:23:36,259 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:23:36,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:23:36,260 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:23:36,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:23:36,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:23:36,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:23:36,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:23:36,260 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:23:36,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:23:36,260 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 15:23:36,260 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 15:23:36,260 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:23:36,260 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:23:36,261 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:23:36,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:23:36,261 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_40ada95b-cea4-4271-bdea-669baa88e788/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 -> e67445e12651560afd9610d5a103069fc2fc9d028994dc4bd874cfab54748c3d [2024-12-02 15:23:36,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:23:36,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:23:36,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:23:36,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:23:36,510 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:23:36,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i [2024-12-02 15:23:39,190 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/data/47737d070/1ed5515e8b044cb58d8c7709bf4b11c2/FLAGa1a0a20ea [2024-12-02 15:23:39,378 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:23:39,379 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i [2024-12-02 15:23:39,387 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/data/47737d070/1ed5515e8b044cb58d8c7709bf4b11c2/FLAGa1a0a20ea [2024-12-02 15:23:39,401 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/data/47737d070/1ed5515e8b044cb58d8c7709bf4b11c2 [2024-12-02 15:23:39,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:23:39,405 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:23:39,406 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:23:39,406 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:23:39,410 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:23:39,411 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:23:39" (1/1) ... [2024-12-02 15:23:39,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31327731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:39, skipping insertion in model container [2024-12-02 15:23:39,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:23:39" (1/1) ... [2024-12-02 15:23:39,430 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:23:39,564 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_40ada95b-cea4-4271-bdea-669baa88e788/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i[916,929] [2024-12-02 15:23:39,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:23:39,623 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:23:39,632 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_40ada95b-cea4-4271-bdea-669baa88e788/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i[916,929] [2024-12-02 15:23:39,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:23:39,688 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:23:39,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:39 WrapperNode [2024-12-02 15:23:39,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:23:39,690 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:23:39,690 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:23:39,690 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:23:39,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:39" (1/1) ... [2024-12-02 15:23:39,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:39" (1/1) ... [2024-12-02 15:23:39,738 INFO L138 Inliner]: procedures = 34, calls = 145, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 407 [2024-12-02 15:23:39,738 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:23:39,739 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:23:39,739 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:23:39,739 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:23:39,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:39" (1/1) ... [2024-12-02 15:23:39,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:39" (1/1) ... [2024-12-02 15:23:39,752 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:39" (1/1) ... [2024-12-02 15:23:39,768 INFO L175 MemorySlicer]: Split 117 memory accesses to 2 slices as follows [2, 115]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 35 writes are split as follows [0, 35]. [2024-12-02 15:23:39,769 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:39" (1/1) ... [2024-12-02 15:23:39,769 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:39" (1/1) ... [2024-12-02 15:23:39,788 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:39" (1/1) ... [2024-12-02 15:23:39,789 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:39" (1/1) ... [2024-12-02 15:23:39,793 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:39" (1/1) ... [2024-12-02 15:23:39,796 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:39" (1/1) ... [2024-12-02 15:23:39,798 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:39" (1/1) ... [2024-12-02 15:23:39,802 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:23:39,803 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:23:39,803 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:23:39,803 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:23:39,804 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:39" (1/1) ... [2024-12-02 15:23:39,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:23:39,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:39,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:23:39,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:23:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:23:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 15:23:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 15:23:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 15:23:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 15:23:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-02 15:23:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-02 15:23:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-12-02 15:23:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-12-02 15:23:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-12-02 15:23:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-12-02 15:23:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-12-02 15:23:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-12-02 15:23:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-12-02 15:23:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-12-02 15:23:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 15:23:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 15:23:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-12-02 15:23:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-12-02 15:23:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:23:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:23:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 15:23:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 15:23:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-12-02 15:23:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-12-02 15:23:39,950 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:23:39,952 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:23:40,424 INFO L? ?]: Removed 80 outVars from TransFormulas that were not future-live. [2024-12-02 15:23:40,425 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:23:40,437 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:23:40,438 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 15:23:40,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:23:40 BoogieIcfgContainer [2024-12-02 15:23:40,438 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:23:40,440 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:23:40,441 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:23:40,444 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:23:40,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:23:39" (1/3) ... [2024-12-02 15:23:40,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33949188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:23:40, skipping insertion in model container [2024-12-02 15:23:40,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:39" (2/3) ... [2024-12-02 15:23:40,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33949188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:23:40, skipping insertion in model container [2024-12-02 15:23:40,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:23:40" (3/3) ... [2024-12-02 15:23:40,447 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-97.i [2024-12-02 15:23:40,460 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:23:40,461 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-97.i that has 2 procedures, 100 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 15:23:40,508 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:23:40,519 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;@4b103218, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:23:40,520 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 15:23:40,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 80 states have (on average 1.3875) internal successors, (111), 81 states have internal predecessors, (111), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 15:23:40,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 15:23:40,533 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:40,534 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:40,535 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:40,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:40,539 INFO L85 PathProgramCache]: Analyzing trace with hash 993834081, now seen corresponding path program 1 times [2024-12-02 15:23:40,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:23:40,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1845092015] [2024-12-02 15:23:40,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:40,550 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:23:40,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:23:40,552 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:40,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:40,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 15:23:40,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:40,863 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-12-02 15:23:40,863 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:23:40,863 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:23:40,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1845092015] [2024-12-02 15:23:40,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1845092015] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:40,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:40,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:23:40,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140904956] [2024-12-02 15:23:40,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:40,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 15:23:40,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:23:40,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 15:23:40,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:23:40,884 INFO L87 Difference]: Start difference. First operand has 100 states, 80 states have (on average 1.3875) internal successors, (111), 81 states have internal predecessors, (111), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:23:40,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:40,908 INFO L93 Difference]: Finished difference Result 193 states and 301 transitions. [2024-12-02 15:23:40,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 15:23:40,910 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-12-02 15:23:40,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:40,915 INFO L225 Difference]: With dead ends: 193 [2024-12-02 15:23:40,916 INFO L226 Difference]: Without dead ends: 96 [2024-12-02 15:23:40,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 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 15:23:40,921 INFO L435 NwaCegarLoop]: 138 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, 138 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 15:23:40,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:23:40,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-12-02 15:23:40,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-12-02 15:23:40,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 77 states have (on average 1.3506493506493507) internal successors, (104), 77 states have internal predecessors, (104), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 15:23:40,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 138 transitions. [2024-12-02 15:23:40,960 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 138 transitions. Word has length 134 [2024-12-02 15:23:40,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:40,961 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 138 transitions. [2024-12-02 15:23:40,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:23:40,961 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 138 transitions. [2024-12-02 15:23:40,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 15:23:40,964 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:40,964 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:40,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:41,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:41,165 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:41,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:41,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1139851071, now seen corresponding path program 1 times [2024-12-02 15:23:41,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:23:41,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484665446] [2024-12-02 15:23:41,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:41,167 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 15:23:41,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:23:41,169 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:41,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:41,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:23:41,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:41,497 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:41,497 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:23:41,498 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:23:41,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484665446] [2024-12-02 15:23:41,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484665446] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:41,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:41,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:23:41,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527084723] [2024-12-02 15:23:41,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:41,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:23:41,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:23:41,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:23:41,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:23:41,501 INFO L87 Difference]: Start difference. First operand 96 states and 138 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:41,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:41,546 INFO L93 Difference]: Finished difference Result 191 states and 276 transitions. [2024-12-02 15:23:41,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:23:41,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-12-02 15:23:41,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:41,549 INFO L225 Difference]: With dead ends: 191 [2024-12-02 15:23:41,549 INFO L226 Difference]: Without dead ends: 98 [2024-12-02 15:23:41,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 131 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 15:23:41,551 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 397 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 15:23:41,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 397 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:23:41,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-12-02 15:23:41,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-12-02 15:23:41,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 79 states have (on average 1.3417721518987342) internal successors, (106), 79 states have internal predecessors, (106), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 15:23:41,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 140 transitions. [2024-12-02 15:23:41,563 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 140 transitions. Word has length 134 [2024-12-02 15:23:41,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:41,565 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 140 transitions. [2024-12-02 15:23:41,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:41,566 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 140 transitions. [2024-12-02 15:23:41,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 15:23:41,568 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:41,568 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:41,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:41,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:41,768 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:41,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:41,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1830527183, now seen corresponding path program 1 times [2024-12-02 15:23:41,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:23:41,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741928030] [2024-12-02 15:23:41,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:41,770 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 15:23:41,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:23:41,771 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:41,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:42,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:23:42,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:42,085 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:42,085 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:23:42,085 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:23:42,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741928030] [2024-12-02 15:23:42,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741928030] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:42,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:42,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:23:42,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004238207] [2024-12-02 15:23:42,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:42,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:23:42,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:23:42,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:23:42,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:42,088 INFO L87 Difference]: Start difference. First operand 98 states and 140 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:42,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:42,746 INFO L93 Difference]: Finished difference Result 274 states and 391 transitions. [2024-12-02 15:23:42,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:23:42,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-12-02 15:23:42,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:42,749 INFO L225 Difference]: With dead ends: 274 [2024-12-02 15:23:42,749 INFO L226 Difference]: Without dead ends: 179 [2024-12-02 15:23:42,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:23:42,750 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 101 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:42,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 500 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 15:23:42,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-12-02 15:23:42,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 100. [2024-12-02 15:23:42,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 81 states have (on average 1.3333333333333333) internal successors, (108), 81 states have internal predecessors, (108), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 15:23:42,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 142 transitions. [2024-12-02 15:23:42,762 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 142 transitions. Word has length 136 [2024-12-02 15:23:42,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:42,763 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 142 transitions. [2024-12-02 15:23:42,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:42,763 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 142 transitions. [2024-12-02 15:23:42,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 15:23:42,765 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:42,765 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:42,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 15:23:42,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:42,966 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:42,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:42,967 INFO L85 PathProgramCache]: Analyzing trace with hash -904263942, now seen corresponding path program 1 times [2024-12-02 15:23:42,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:23:42,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201353797] [2024-12-02 15:23:42,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:42,967 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 15:23:42,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:23:42,969 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:42,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:43,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:23:43,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:43,244 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:43,244 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:23:43,244 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:23:43,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201353797] [2024-12-02 15:23:43,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201353797] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:43,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:43,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:23:43,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937184597] [2024-12-02 15:23:43,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:43,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:23:43,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:23:43,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:23:43,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:23:43,246 INFO L87 Difference]: Start difference. First operand 100 states and 142 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:43,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:43,279 INFO L93 Difference]: Finished difference Result 200 states and 285 transitions. [2024-12-02 15:23:43,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:23:43,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-12-02 15:23:43,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:43,281 INFO L225 Difference]: With dead ends: 200 [2024-12-02 15:23:43,282 INFO L226 Difference]: Without dead ends: 103 [2024-12-02 15:23:43,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 133 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 15:23:43,283 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 1 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 394 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 15:23:43,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 394 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:23:43,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-12-02 15:23:43,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2024-12-02 15:23:43,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 83 states have (on average 1.3253012048192772) internal successors, (110), 83 states have internal predecessors, (110), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 15:23:43,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2024-12-02 15:23:43,292 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 144 transitions. Word has length 136 [2024-12-02 15:23:43,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:43,292 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 144 transitions. [2024-12-02 15:23:43,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:43,293 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 144 transitions. [2024-12-02 15:23:43,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 15:23:43,294 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:43,295 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:43,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:43,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:43,495 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:43,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:43,496 INFO L85 PathProgramCache]: Analyzing trace with hash -224205572, now seen corresponding path program 1 times [2024-12-02 15:23:43,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:23:43,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97252914] [2024-12-02 15:23:43,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:43,497 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 15:23:43,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:23:43,498 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:43,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:43,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:23:43,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:43,754 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:43,754 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:23:43,754 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:23:43,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97252914] [2024-12-02 15:23:43,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97252914] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:43,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:43,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:23:43,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286749620] [2024-12-02 15:23:43,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:43,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:23:43,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:23:43,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:23:43,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:43,756 INFO L87 Difference]: Start difference. First operand 102 states and 144 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:43,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:43,793 INFO L93 Difference]: Finished difference Result 204 states and 289 transitions. [2024-12-02 15:23:43,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:23:43,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-12-02 15:23:43,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:43,795 INFO L225 Difference]: With dead ends: 204 [2024-12-02 15:23:43,795 INFO L226 Difference]: Without dead ends: 105 [2024-12-02 15:23:43,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 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 15:23:43,796 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 1 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:43,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 517 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:23:43,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-12-02 15:23:43,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2024-12-02 15:23:43,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 85 states have (on average 1.3176470588235294) internal successors, (112), 85 states have internal predecessors, (112), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 15:23:43,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 146 transitions. [2024-12-02 15:23:43,804 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 146 transitions. Word has length 136 [2024-12-02 15:23:43,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:43,805 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 146 transitions. [2024-12-02 15:23:43,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:43,805 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 146 transitions. [2024-12-02 15:23:43,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 15:23:43,807 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:43,807 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:43,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:44,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:44,008 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:44,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:44,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1550801790, now seen corresponding path program 1 times [2024-12-02 15:23:44,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:23:44,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133909165] [2024-12-02 15:23:44,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:44,009 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 15:23:44,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:23:44,010 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:44,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:44,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 15:23:44,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:44,239 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:23:44,240 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:23:44,240 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:23:44,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133909165] [2024-12-02 15:23:44,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133909165] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:44,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:44,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:23:44,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772962361] [2024-12-02 15:23:44,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:44,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:23:44,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:23:44,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:23:44,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:23:44,241 INFO L87 Difference]: Start difference. First operand 104 states and 146 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:44,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:44,289 INFO L93 Difference]: Finished difference Result 208 states and 293 transitions. [2024-12-02 15:23:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:23:44,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-12-02 15:23:44,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:44,291 INFO L225 Difference]: With dead ends: 208 [2024-12-02 15:23:44,291 INFO L226 Difference]: Without dead ends: 107 [2024-12-02 15:23:44,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 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 15:23:44,293 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:44,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 640 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:23:44,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-12-02 15:23:44,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2024-12-02 15:23:44,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 87 states have (on average 1.3103448275862069) internal successors, (114), 87 states have internal predecessors, (114), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 15:23:44,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 148 transitions. [2024-12-02 15:23:44,301 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 148 transitions. Word has length 136 [2024-12-02 15:23:44,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:44,301 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 148 transitions. [2024-12-02 15:23:44,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:23:44,302 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 148 transitions. [2024-12-02 15:23:44,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 15:23:44,303 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:44,303 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:44,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:44,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:44,504 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:44,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:44,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1552648832, now seen corresponding path program 1 times [2024-12-02 15:23:44,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:23:44,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226527939] [2024-12-02 15:23:44,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:44,505 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 15:23:44,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:23:44,506 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:44,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:44,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 15:23:44,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:44,779 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 15:23:44,955 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 42 treesize of output 20 [2024-12-02 15:23:45,047 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 42 treesize of output 20 [2024-12-02 15:23:45,149 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:45,149 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 69 treesize of output 61 [2024-12-02 15:23:45,401 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:45,402 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 72 treesize of output 77 [2024-12-02 15:23:45,599 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:45,599 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 87 treesize of output 80 [2024-12-02 15:23:45,645 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:45,645 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 78 treesize of output 30 [2024-12-02 15:23:45,679 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 238 proven. 18 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 15:23:45,680 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:23:46,195 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 72 proven. 18 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-12-02 15:23:46,195 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:23:46,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1226527939] [2024-12-02 15:23:46,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1226527939] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:23:46,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:23:46,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 21 [2024-12-02 15:23:46,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584635312] [2024-12-02 15:23:46,195 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:23:46,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 15:23:46,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:23:46,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 15:23:46,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2024-12-02 15:23:46,198 INFO L87 Difference]: Start difference. First operand 106 states and 148 transitions. Second operand has 21 states, 17 states have (on average 4.882352941176471) internal successors, (83), 21 states have internal predecessors, (83), 7 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 3 states have call predecessors, (22), 7 states have call successors, (22) [2024-12-02 15:23:50,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:50,359 INFO L93 Difference]: Finished difference Result 358 states and 486 transitions. [2024-12-02 15:23:50,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-12-02 15:23:50,360 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 4.882352941176471) internal successors, (83), 21 states have internal predecessors, (83), 7 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 3 states have call predecessors, (22), 7 states have call successors, (22) Word has length 136 [2024-12-02 15:23:50,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:50,362 INFO L225 Difference]: With dead ends: 358 [2024-12-02 15:23:50,363 INFO L226 Difference]: Without dead ends: 255 [2024-12-02 15:23:50,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 251 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=406, Invalid=1664, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 15:23:50,364 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 584 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:50,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 886 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 1519 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 15:23:50,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-12-02 15:23:50,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 240. [2024-12-02 15:23:50,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 189 states have (on average 1.2645502645502646) internal successors, (239), 191 states have internal predecessors, (239), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 15:23:50,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 323 transitions. [2024-12-02 15:23:50,393 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 323 transitions. Word has length 136 [2024-12-02 15:23:50,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:50,393 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 323 transitions. [2024-12-02 15:23:50,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 4.882352941176471) internal successors, (83), 21 states have internal predecessors, (83), 7 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 3 states have call predecessors, (22), 7 states have call successors, (22) [2024-12-02 15:23:50,394 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 323 transitions. [2024-12-02 15:23:50,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 15:23:50,395 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:50,395 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:50,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-12-02 15:23:50,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:50,596 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:50,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:50,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1418635326, now seen corresponding path program 1 times [2024-12-02 15:23:50,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:23:50,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154317526] [2024-12-02 15:23:50,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:50,597 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 15:23:50,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:23:50,598 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:50,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:50,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 15:23:50,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:50,849 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 15:23:51,097 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 52 treesize of output 24 [2024-12-02 15:23:51,249 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 52 treesize of output 24 [2024-12-02 15:23:51,395 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 52 treesize of output 24 [2024-12-02 15:23:51,487 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:51,488 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 79 treesize of output 65 [2024-12-02 15:23:51,567 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:51,567 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 95 treesize of output 41 [2024-12-02 15:23:51,587 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 294 proven. 30 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 15:23:51,587 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:23:51,858 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 60 proven. 30 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-12-02 15:23:51,858 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:23:51,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154317526] [2024-12-02 15:23:51,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [154317526] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:23:51,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:23:51,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8] total 18 [2024-12-02 15:23:51,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461608074] [2024-12-02 15:23:51,859 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:23:51,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 15:23:51,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:23:51,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 15:23:51,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2024-12-02 15:23:51,860 INFO L87 Difference]: Start difference. First operand 240 states and 323 transitions. Second operand has 18 states, 14 states have (on average 5.642857142857143) internal successors, (79), 16 states have internal predecessors, (79), 7 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 7 states have call successors, (24) [2024-12-02 15:23:54,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:54,155 INFO L93 Difference]: Finished difference Result 484 states and 640 transitions. [2024-12-02 15:23:54,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 15:23:54,156 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 5.642857142857143) internal successors, (79), 16 states have internal predecessors, (79), 7 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 7 states have call successors, (24) Word has length 136 [2024-12-02 15:23:54,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:54,158 INFO L225 Difference]: With dead ends: 484 [2024-12-02 15:23:54,158 INFO L226 Difference]: Without dead ends: 264 [2024-12-02 15:23:54,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 252 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=190, Invalid=460, Unknown=0, NotChecked=0, Total=650 [2024-12-02 15:23:54,159 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 128 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:54,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 412 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 15:23:54,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-12-02 15:23:54,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 259. [2024-12-02 15:23:54,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 202 states have (on average 1.2425742574257426) internal successors, (251), 204 states have internal predecessors, (251), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 15:23:54,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 339 transitions. [2024-12-02 15:23:54,193 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 339 transitions. Word has length 136 [2024-12-02 15:23:54,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:54,193 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 339 transitions. [2024-12-02 15:23:54,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 5.642857142857143) internal successors, (79), 16 states have internal predecessors, (79), 7 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 7 states have call successors, (24) [2024-12-02 15:23:54,193 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 339 transitions. [2024-12-02 15:23:54,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 15:23:54,194 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:54,194 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:54,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:54,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:54,395 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:54,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:54,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1913505383, now seen corresponding path program 1 times [2024-12-02 15:23:54,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:23:54,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154285942] [2024-12-02 15:23:54,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:54,396 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 15:23:54,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:23:54,397 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:23:54,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-12-02 15:23:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:54,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 15:23:54,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:54,658 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 15:23:54,883 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 47 treesize of output 34 [2024-12-02 15:23:55,059 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:55,059 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 57 treesize of output 47 [2024-12-02 15:23:55,295 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:55,296 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 72 treesize of output 50 [2024-12-02 15:23:55,442 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:55,442 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 99 treesize of output 82 [2024-12-02 15:23:55,696 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:55,696 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 75 treesize of output 89 [2024-12-02 15:23:55,882 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:55,883 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 90 treesize of output 92 [2024-12-02 15:23:55,921 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:55,921 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 81 treesize of output 33 [2024-12-02 15:23:55,944 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 318 proven. 30 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-12-02 15:23:55,944 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:23:56,316 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 60 proven. 30 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-12-02 15:23:56,316 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:23:56,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154285942] [2024-12-02 15:23:56,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154285942] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:23:56,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:23:56,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10] total 25 [2024-12-02 15:23:56,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048467569] [2024-12-02 15:23:56,317 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:23:56,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 15:23:56,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:23:56,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 15:23:56,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2024-12-02 15:23:56,319 INFO L87 Difference]: Start difference. First operand 259 states and 339 transitions. Second operand has 25 states, 21 states have (on average 4.190476190476191) internal successors, (88), 22 states have internal predecessors, (88), 8 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 6 states have call predecessors, (24), 8 states have call successors, (24) [2024-12-02 15:24:01,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:01,250 INFO L93 Difference]: Finished difference Result 546 states and 702 transitions. [2024-12-02 15:24:01,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-12-02 15:24:01,251 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 21 states have (on average 4.190476190476191) internal successors, (88), 22 states have internal predecessors, (88), 8 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 6 states have call predecessors, (24), 8 states have call successors, (24) Word has length 136 [2024-12-02 15:24:01,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:01,253 INFO L225 Difference]: With dead ends: 546 [2024-12-02 15:24:01,253 INFO L226 Difference]: Without dead ends: 311 [2024-12-02 15:24:01,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=665, Invalid=2415, Unknown=0, NotChecked=0, Total=3080 [2024-12-02 15:24:01,255 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 422 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:01,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 945 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 15:24:01,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-12-02 15:24:01,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 184. [2024-12-02 15:24:01,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 138 states have (on average 1.2028985507246377) internal successors, (166), 139 states have internal predecessors, (166), 34 states have call successors, (34), 11 states have call predecessors, (34), 11 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:24:01,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 234 transitions. [2024-12-02 15:24:01,288 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 234 transitions. Word has length 136 [2024-12-02 15:24:01,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:01,289 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 234 transitions. [2024-12-02 15:24:01,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 21 states have (on average 4.190476190476191) internal successors, (88), 22 states have internal predecessors, (88), 8 states have call successors, (24), 5 states have call predecessors, (24), 6 states have return successors, (24), 6 states have call predecessors, (24), 8 states have call successors, (24) [2024-12-02 15:24:01,289 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 234 transitions. [2024-12-02 15:24:01,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 15:24:01,290 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:01,290 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:01,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-12-02 15:24:01,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:01,490 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:01,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:01,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1858789075, now seen corresponding path program 1 times [2024-12-02 15:24:01,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:01,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480214362] [2024-12-02 15:24:01,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:01,491 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 15:24:01,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:01,493 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:01,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:01,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 15:24:01,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:01,680 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 12 treesize of output 8 [2024-12-02 15:24:01,693 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 37 treesize of output 25 [2024-12-02 15:24:01,709 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:24:01,709 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:24:01,709 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:01,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480214362] [2024-12-02 15:24:01,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480214362] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:24:01,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:24:01,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:24:01,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559150012] [2024-12-02 15:24:01,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:24:01,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:24:01,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:01,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:24:01,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:24:01,711 INFO L87 Difference]: Start difference. First operand 184 states and 234 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:24:02,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:02,179 INFO L93 Difference]: Finished difference Result 429 states and 550 transitions. [2024-12-02 15:24:02,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:24:02,180 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 137 [2024-12-02 15:24:02,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:02,182 INFO L225 Difference]: With dead ends: 429 [2024-12-02 15:24:02,182 INFO L226 Difference]: Without dead ends: 308 [2024-12-02 15:24:02,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 132 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 15:24:02,183 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 117 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:02,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 717 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 15:24:02,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-12-02 15:24:02,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 188. [2024-12-02 15:24:02,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 142 states have (on average 1.2112676056338028) internal successors, (172), 143 states have internal predecessors, (172), 34 states have call successors, (34), 11 states have call predecessors, (34), 11 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:24:02,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 240 transitions. [2024-12-02 15:24:02,208 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 240 transitions. Word has length 137 [2024-12-02 15:24:02,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:02,209 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 240 transitions. [2024-12-02 15:24:02,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:24:02,209 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 240 transitions. [2024-12-02 15:24:02,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 15:24:02,210 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:02,210 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:02,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:02,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:02,411 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:02,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:02,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1509914980, now seen corresponding path program 1 times [2024-12-02 15:24:02,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:02,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425754846] [2024-12-02 15:24:02,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:02,411 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 15:24:02,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:02,413 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:02,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:02,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 15:24:02,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:02,672 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 15:24:02,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2024-12-02 15:24:02,912 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:02,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 33 [2024-12-02 15:24:02,993 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:02,993 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 76 treesize of output 44 [2024-12-02 15:24:03,141 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:03,141 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 64 treesize of output 57 [2024-12-02 15:24:03,240 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:03,240 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 79 treesize of output 60 [2024-12-02 15:24:03,373 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:03,373 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 75 treesize of output 60 [2024-12-02 15:24:03,466 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:03,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 28 [2024-12-02 15:24:03,492 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 238 proven. 18 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 15:24:03,492 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:24:03,812 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 72 proven. 18 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-12-02 15:24:03,812 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:03,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425754846] [2024-12-02 15:24:03,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425754846] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:24:03,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:24:03,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10] total 22 [2024-12-02 15:24:03,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115403622] [2024-12-02 15:24:03,813 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:24:03,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 15:24:03,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:03,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 15:24:03,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2024-12-02 15:24:03,814 INFO L87 Difference]: Start difference. First operand 188 states and 240 transitions. Second operand has 22 states, 18 states have (on average 4.833333333333333) internal successors, (87), 21 states have internal predecessors, (87), 7 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 7 states have call successors, (22) [2024-12-02 15:24:07,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:07,940 INFO L93 Difference]: Finished difference Result 452 states and 576 transitions. [2024-12-02 15:24:07,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-12-02 15:24:07,941 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 4.833333333333333) internal successors, (87), 21 states have internal predecessors, (87), 7 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 7 states have call successors, (22) Word has length 137 [2024-12-02 15:24:07,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:07,942 INFO L225 Difference]: With dead ends: 452 [2024-12-02 15:24:07,942 INFO L226 Difference]: Without dead ends: 327 [2024-12-02 15:24:07,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 250 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=430, Invalid=1732, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 15:24:07,943 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 293 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 1946 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:07,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 991 Invalid, 2088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1946 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 15:24:07,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-12-02 15:24:07,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 171. [2024-12-02 15:24:07,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 134 states have (on average 1.2388059701492538) internal successors, (166), 135 states have internal predecessors, (166), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 15:24:07,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 222 transitions. [2024-12-02 15:24:07,962 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 222 transitions. Word has length 137 [2024-12-02 15:24:07,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:07,962 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 222 transitions. [2024-12-02 15:24:07,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 4.833333333333333) internal successors, (87), 21 states have internal predecessors, (87), 7 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 7 states have call successors, (22) [2024-12-02 15:24:07,962 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 222 transitions. [2024-12-02 15:24:07,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 15:24:07,963 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:07,963 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:07,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:08,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:08,163 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:08,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:08,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1086703509, now seen corresponding path program 1 times [2024-12-02 15:24:08,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:08,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932942201] [2024-12-02 15:24:08,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:08,164 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 15:24:08,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:08,166 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:08,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:08,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 15:24:08,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:08,426 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 15:24:08,643 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 47 treesize of output 34 [2024-12-02 15:24:08,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:08,823 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 62 treesize of output 37 [2024-12-02 15:24:08,959 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:08,959 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 62 treesize of output 37 [2024-12-02 15:24:09,126 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:09,126 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 86 treesize of output 57 [2024-12-02 15:24:09,323 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:09,323 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 74 treesize of output 70 [2024-12-02 15:24:09,449 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:09,449 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 63 [2024-12-02 15:24:09,516 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:09,517 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 63 treesize of output 63 [2024-12-02 15:24:09,545 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:09,546 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 58 treesize of output 22 [2024-12-02 15:24:09,566 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 294 proven. 30 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 15:24:09,567 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:24:09,892 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 60 proven. 30 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-12-02 15:24:09,892 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:09,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932942201] [2024-12-02 15:24:09,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932942201] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:24:09,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:24:09,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10] total 24 [2024-12-02 15:24:09,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184397832] [2024-12-02 15:24:09,893 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:24:09,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 15:24:09,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:09,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 15:24:09,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=419, Unknown=0, NotChecked=0, Total=552 [2024-12-02 15:24:09,894 INFO L87 Difference]: Start difference. First operand 171 states and 222 transitions. Second operand has 24 states, 20 states have (on average 4.45) internal successors, (89), 21 states have internal predecessors, (89), 7 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 5 states have call predecessors, (24), 7 states have call successors, (24) [2024-12-02 15:24:14,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:14,644 INFO L93 Difference]: Finished difference Result 433 states and 554 transitions. [2024-12-02 15:24:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-12-02 15:24:14,645 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 4.45) internal successors, (89), 21 states have internal predecessors, (89), 7 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 5 states have call predecessors, (24), 7 states have call successors, (24) Word has length 137 [2024-12-02 15:24:14,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:14,647 INFO L225 Difference]: With dead ends: 433 [2024-12-02 15:24:14,647 INFO L226 Difference]: Without dead ends: 292 [2024-12-02 15:24:14,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=529, Invalid=1921, Unknown=0, NotChecked=0, Total=2450 [2024-12-02 15:24:14,648 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 391 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 2047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:14,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 895 Invalid, 2047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1881 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-12-02 15:24:14,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-12-02 15:24:14,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 159. [2024-12-02 15:24:14,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 122 states have (on average 1.2049180327868851) internal successors, (147), 123 states have internal predecessors, (147), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 15:24:14,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 203 transitions. [2024-12-02 15:24:14,675 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 203 transitions. Word has length 137 [2024-12-02 15:24:14,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:14,676 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 203 transitions. [2024-12-02 15:24:14,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 4.45) internal successors, (89), 21 states have internal predecessors, (89), 7 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 5 states have call predecessors, (24), 7 states have call successors, (24) [2024-12-02 15:24:14,676 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 203 transitions. [2024-12-02 15:24:14,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 15:24:14,677 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:14,677 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:14,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:14,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:14,877 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:14,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:14,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1489061678, now seen corresponding path program 1 times [2024-12-02 15:24:14,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:14,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1274993037] [2024-12-02 15:24:14,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:14,878 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 15:24:14,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:14,880 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:14,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:15,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:24:15,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:15,096 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 22 treesize of output 10 [2024-12-02 15:24:15,181 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:24:15,181 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:24:15,182 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:15,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1274993037] [2024-12-02 15:24:15,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1274993037] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:24:15,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:24:15,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:24:15,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203218434] [2024-12-02 15:24:15,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:24:15,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:24:15,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:15,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:24:15,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:24:15,183 INFO L87 Difference]: Start difference. First operand 159 states and 203 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:24:17,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:17,595 INFO L93 Difference]: Finished difference Result 288 states and 366 transitions. [2024-12-02 15:24:17,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:24:17,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138 [2024-12-02 15:24:17,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:17,597 INFO L225 Difference]: With dead ends: 288 [2024-12-02 15:24:17,597 INFO L226 Difference]: Without dead ends: 159 [2024-12-02 15:24:17,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 134 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 15:24:17,598 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 110 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:17,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 213 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 15:24:17,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-12-02 15:24:17,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2024-12-02 15:24:17,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 122 states have (on average 1.1967213114754098) internal successors, (146), 123 states have internal predecessors, (146), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 15:24:17,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 202 transitions. [2024-12-02 15:24:17,624 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 202 transitions. Word has length 138 [2024-12-02 15:24:17,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:17,624 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 202 transitions. [2024-12-02 15:24:17,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:24:17,624 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 202 transitions. [2024-12-02 15:24:17,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 15:24:17,625 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:17,625 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:17,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:17,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:17,826 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:17,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:17,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1116961876, now seen corresponding path program 1 times [2024-12-02 15:24:17,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:17,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624580404] [2024-12-02 15:24:17,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:17,826 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 15:24:17,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:17,828 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:17,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:18,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 15:24:18,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:18,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 15:24:18,337 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 52 treesize of output 24 [2024-12-02 15:24:18,441 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 47 treesize of output 34 [2024-12-02 15:24:18,595 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:18,595 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 57 treesize of output 47 [2024-12-02 15:24:18,793 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:18,793 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 72 treesize of output 50 [2024-12-02 15:24:18,952 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:18,953 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 99 treesize of output 73 [2024-12-02 15:24:19,113 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:19,114 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 102 treesize of output 80 [2024-12-02 15:24:19,239 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:19,240 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 102 treesize of output 80 [2024-12-02 15:24:19,550 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:19,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 145 treesize of output 144 [2024-12-02 15:24:19,802 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:19,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 132 treesize of output 62 [2024-12-02 15:24:20,419 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 370 proven. 42 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-12-02 15:24:20,419 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:24:20,729 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:24:20,729 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:20,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624580404] [2024-12-02 15:24:20,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624580404] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:24:20,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:24:20,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [18] total 21 [2024-12-02 15:24:20,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524070876] [2024-12-02 15:24:20,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:24:20,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:24:20,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:20,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:24:20,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2024-12-02 15:24:20,731 INFO L87 Difference]: Start difference. First operand 159 states and 202 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:24:21,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:21,260 INFO L93 Difference]: Finished difference Result 395 states and 496 transitions. [2024-12-02 15:24:21,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:24:21,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138 [2024-12-02 15:24:21,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:21,263 INFO L225 Difference]: With dead ends: 395 [2024-12-02 15:24:21,263 INFO L226 Difference]: Without dead ends: 266 [2024-12-02 15:24:21,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 253 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2024-12-02 15:24:21,263 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 166 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:21,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 475 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 15:24:21,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-12-02 15:24:21,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 159. [2024-12-02 15:24:21,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 123 states have internal predecessors, (145), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 15:24:21,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 201 transitions. [2024-12-02 15:24:21,288 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 201 transitions. Word has length 138 [2024-12-02 15:24:21,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:21,289 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 201 transitions. [2024-12-02 15:24:21,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:24:21,289 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 201 transitions. [2024-12-02 15:24:21,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 15:24:21,289 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:21,289 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:21,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-12-02 15:24:21,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:21,490 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:21,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:21,490 INFO L85 PathProgramCache]: Analyzing trace with hash 2101173006, now seen corresponding path program 1 times [2024-12-02 15:24:21,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:21,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035512175] [2024-12-02 15:24:21,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:21,491 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 15:24:21,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:21,492 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:21,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-12-02 15:24:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:21,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 15:24:21,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:21,769 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 15:24:21,772 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 15:24:21,775 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 15:24:21,814 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 15:24:21,853 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 15:24:21,935 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:21,935 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 40 treesize of output 27 [2024-12-02 15:24:21,983 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:21,983 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 38 [2024-12-02 15:24:22,031 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:22,031 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 52 treesize of output 42 [2024-12-02 15:24:22,059 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:22,059 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 78 [2024-12-02 15:24:22,154 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:22,155 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 78 treesize of output 81 [2024-12-02 15:24:22,280 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:22,280 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 137 treesize of output 65 [2024-12-02 15:24:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-12-02 15:24:22,319 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:24:22,319 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:22,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035512175] [2024-12-02 15:24:22,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035512175] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:24:22,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:24:22,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:24:22,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711674770] [2024-12-02 15:24:22,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:24:22,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 15:24:22,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:22,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 15:24:22,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:24:22,321 INFO L87 Difference]: Start difference. First operand 159 states and 201 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 15:24:23,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:23,621 INFO L93 Difference]: Finished difference Result 378 states and 472 transitions. [2024-12-02 15:24:23,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:24:23,621 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-12-02 15:24:23,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:23,622 INFO L225 Difference]: With dead ends: 378 [2024-12-02 15:24:23,622 INFO L226 Difference]: Without dead ends: 249 [2024-12-02 15:24:23,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:24:23,623 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 254 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:23,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 467 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 15:24:23,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-12-02 15:24:23,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 227. [2024-12-02 15:24:23,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 183 states have (on average 1.2076502732240437) internal successors, (221), 185 states have internal predecessors, (221), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:24:23,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 289 transitions. [2024-12-02 15:24:23,658 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 289 transitions. Word has length 139 [2024-12-02 15:24:23,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:23,659 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 289 transitions. [2024-12-02 15:24:23,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 15:24:23,659 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 289 transitions. [2024-12-02 15:24:23,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 15:24:23,660 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:23,660 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:23,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-12-02 15:24:23,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:23,860 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:23,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:23,861 INFO L85 PathProgramCache]: Analyzing trace with hash 521270392, now seen corresponding path program 1 times [2024-12-02 15:24:23,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:23,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529345972] [2024-12-02 15:24:23,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:23,861 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 15:24:23,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:23,863 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:23,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:24,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 15:24:24,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:24,141 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 15:24:24,242 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 42 treesize of output 20 [2024-12-02 15:24:24,285 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 42 treesize of output 20 [2024-12-02 15:24:24,332 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 37 treesize of output 30 [2024-12-02 15:24:24,466 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:24,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 33 [2024-12-02 15:24:24,544 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:24,544 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 79 treesize of output 56 [2024-12-02 15:24:24,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:24,644 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 82 treesize of output 63 [2024-12-02 15:24:24,689 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:24,690 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 82 treesize of output 63 [2024-12-02 15:24:24,869 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:24,870 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 98 treesize of output 80 [2024-12-02 15:24:25,061 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:25,062 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 103 treesize of output 43 [2024-12-02 15:24:26,893 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 346 proven. 42 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-12-02 15:24:26,894 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:24:27,450 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:24:27,450 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:27,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529345972] [2024-12-02 15:24:27,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529345972] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:24:27,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:24:27,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18 [2024-12-02 15:24:27,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335961189] [2024-12-02 15:24:27,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:24:27,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:24:27,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:27,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:24:27,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-12-02 15:24:27,452 INFO L87 Difference]: Start difference. First operand 227 states and 289 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:24:28,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:28,039 INFO L93 Difference]: Finished difference Result 576 states and 729 transitions. [2024-12-02 15:24:28,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:24:28,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-12-02 15:24:28,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:28,041 INFO L225 Difference]: With dead ends: 576 [2024-12-02 15:24:28,041 INFO L226 Difference]: Without dead ends: 379 [2024-12-02 15:24:28,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2024-12-02 15:24:28,042 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 98 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:28,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 361 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 15:24:28,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-12-02 15:24:28,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 227. [2024-12-02 15:24:28,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 183 states have (on average 1.1967213114754098) internal successors, (219), 185 states have internal predecessors, (219), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:24:28,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 287 transitions. [2024-12-02 15:24:28,095 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 287 transitions. Word has length 139 [2024-12-02 15:24:28,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:28,095 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 287 transitions. [2024-12-02 15:24:28,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:24:28,096 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 287 transitions. [2024-12-02 15:24:28,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 15:24:28,096 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:28,096 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:28,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:28,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:28,297 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:28,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:28,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1272825617, now seen corresponding path program 1 times [2024-12-02 15:24:28,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:28,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169244032] [2024-12-02 15:24:28,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:28,298 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 15:24:28,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:28,300 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:28,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-12-02 15:24:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:28,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-02 15:24:28,617 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:28,619 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 15:24:28,664 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 15:24:28,700 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 30 treesize of output 14 [2024-12-02 15:24:28,730 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 15:24:28,775 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 15:24:28,866 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:28,866 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 40 treesize of output 27 [2024-12-02 15:24:28,941 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:28,941 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 15:24:29,075 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:29,076 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 50 treesize of output 40 [2024-12-02 15:24:29,185 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:29,185 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 50 treesize of output 40 [2024-12-02 15:24:29,281 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:29,282 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 74 treesize of output 60 [2024-12-02 15:24:29,363 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:29,363 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 63 [2024-12-02 15:24:29,401 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:29,401 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 63 [2024-12-02 15:24:29,456 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:29,456 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 91 treesize of output 102 [2024-12-02 15:24:29,588 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:29,589 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 174 treesize of output 84 [2024-12-02 15:24:29,665 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2024-12-02 15:24:29,665 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:24:29,665 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:29,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169244032] [2024-12-02 15:24:29,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169244032] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:24:29,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:24:29,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 15:24:29,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824653586] [2024-12-02 15:24:29,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:24:29,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:24:29,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:29,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:24:29,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:24:29,667 INFO L87 Difference]: Start difference. First operand 227 states and 287 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 15:24:31,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:31,647 INFO L93 Difference]: Finished difference Result 520 states and 653 transitions. [2024-12-02 15:24:31,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:24:31,647 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 140 [2024-12-02 15:24:31,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:31,649 INFO L225 Difference]: With dead ends: 520 [2024-12-02 15:24:31,649 INFO L226 Difference]: Without dead ends: 323 [2024-12-02 15:24:31,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-12-02 15:24:31,650 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 347 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:31,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 628 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 15:24:31,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-12-02 15:24:31,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 229. [2024-12-02 15:24:31,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 185 states have (on average 1.1945945945945946) internal successors, (221), 187 states have internal predecessors, (221), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:24:31,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 289 transitions. [2024-12-02 15:24:31,711 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 289 transitions. Word has length 140 [2024-12-02 15:24:31,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:31,711 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 289 transitions. [2024-12-02 15:24:31,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 15:24:31,712 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 289 transitions. [2024-12-02 15:24:31,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 15:24:31,712 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:31,712 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:31,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-12-02 15:24:31,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:31,913 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:31,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:31,913 INFO L85 PathProgramCache]: Analyzing trace with hash -315522285, now seen corresponding path program 1 times [2024-12-02 15:24:31,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:31,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746986242] [2024-12-02 15:24:31,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:31,913 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 15:24:31,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:31,915 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:31,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:32,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:24:32,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:32,137 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 22 treesize of output 10 [2024-12-02 15:24:32,266 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:24:32,266 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:24:32,266 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:32,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746986242] [2024-12-02 15:24:32,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746986242] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:24:32,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:24:32,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:24:32,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440494982] [2024-12-02 15:24:32,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:24:32,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:24:32,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:32,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:24:32,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:24:32,267 INFO L87 Difference]: Start difference. First operand 229 states and 289 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:24:35,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:35,392 INFO L93 Difference]: Finished difference Result 420 states and 528 transitions. [2024-12-02 15:24:35,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:24:35,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-12-02 15:24:35,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:35,394 INFO L225 Difference]: With dead ends: 420 [2024-12-02 15:24:35,394 INFO L226 Difference]: Without dead ends: 221 [2024-12-02 15:24:35,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 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 15:24:35,395 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 105 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:35,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 215 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-12-02 15:24:35,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-12-02 15:24:35,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2024-12-02 15:24:35,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 177 states have (on average 1.1807909604519775) internal successors, (209), 179 states have internal predecessors, (209), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:24:35,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 277 transitions. [2024-12-02 15:24:35,443 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 277 transitions. Word has length 140 [2024-12-02 15:24:35,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:35,443 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 277 transitions. [2024-12-02 15:24:35,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:24:35,444 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 277 transitions. [2024-12-02 15:24:35,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 15:24:35,444 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:35,444 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:35,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:35,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:35,645 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:35,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:35,646 INFO L85 PathProgramCache]: Analyzing trace with hash -2026014256, now seen corresponding path program 1 times [2024-12-02 15:24:35,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:35,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185375934] [2024-12-02 15:24:35,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:35,646 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 15:24:35,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:35,649 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:35,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:35,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 15:24:35,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:36,002 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 15:24:36,005 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 15:24:36,063 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 15:24:36,117 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 25 treesize of output 24 [2024-12-02 15:24:36,241 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:36,242 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 15:24:36,369 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:36,369 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 50 treesize of output 40 [2024-12-02 15:24:36,469 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:36,469 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 50 treesize of output 40 [2024-12-02 15:24:36,554 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:36,554 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 15:24:36,718 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:36,718 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 15:24:36,839 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:36,840 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 87 treesize of output 76 [2024-12-02 15:24:36,947 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:36,947 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 95 treesize of output 82 [2024-12-02 15:24:37,283 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:37,284 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 111 treesize of output 99 [2024-12-02 15:24:37,486 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:37,487 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 116 treesize of output 44 [2024-12-02 15:24:37,543 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-12-02 15:24:37,543 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:24:37,543 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:37,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185375934] [2024-12-02 15:24:37,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185375934] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:24:37,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:24:37,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 15:24:37,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518666637] [2024-12-02 15:24:37,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:24:37,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:24:37,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:37,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:24:37,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:24:37,545 INFO L87 Difference]: Start difference. First operand 221 states and 277 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-12-02 15:24:42,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:42,557 INFO L93 Difference]: Finished difference Result 414 states and 515 transitions. [2024-12-02 15:24:42,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:24:42,558 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 140 [2024-12-02 15:24:42,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:42,559 INFO L225 Difference]: With dead ends: 414 [2024-12-02 15:24:42,559 INFO L226 Difference]: Without dead ends: 223 [2024-12-02 15:24:42,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 129 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:24:42,560 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 236 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:42,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 352 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-12-02 15:24:42,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-12-02 15:24:42,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 221. [2024-12-02 15:24:42,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 177 states have (on average 1.1751412429378532) internal successors, (208), 179 states have internal predecessors, (208), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:24:42,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 276 transitions. [2024-12-02 15:24:42,616 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 276 transitions. Word has length 140 [2024-12-02 15:24:42,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:42,616 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 276 transitions. [2024-12-02 15:24:42,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-12-02 15:24:42,616 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 276 transitions. [2024-12-02 15:24:42,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 15:24:42,617 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:42,618 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:42,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:42,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:42,818 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:42,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:42,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1162538250, now seen corresponding path program 1 times [2024-12-02 15:24:42,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:42,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376050169] [2024-12-02 15:24:42,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:42,819 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 15:24:42,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:42,821 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:42,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:43,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 15:24:43,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:43,110 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:24:43,110 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:24:43,110 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:43,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376050169] [2024-12-02 15:24:43,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376050169] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:24:43,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:24:43,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:24:43,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651780542] [2024-12-02 15:24:43,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:24:43,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:24:43,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:43,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:24:43,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:24:43,111 INFO L87 Difference]: Start difference. First operand 221 states and 276 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:24:43,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:43,228 INFO L93 Difference]: Finished difference Result 420 states and 522 transitions. [2024-12-02 15:24:43,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:24:43,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-12-02 15:24:43,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:43,230 INFO L225 Difference]: With dead ends: 420 [2024-12-02 15:24:43,230 INFO L226 Difference]: Without dead ends: 229 [2024-12-02 15:24:43,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 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 15:24:43,231 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:43,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 630 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:24:43,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-12-02 15:24:43,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 226. [2024-12-02 15:24:43,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 182 states have (on average 1.1703296703296704) internal successors, (213), 184 states have internal predecessors, (213), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:24:43,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 281 transitions. [2024-12-02 15:24:43,290 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 281 transitions. Word has length 141 [2024-12-02 15:24:43,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:43,290 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 281 transitions. [2024-12-02 15:24:43,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:24:43,290 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 281 transitions. [2024-12-02 15:24:43,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 15:24:43,291 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:43,291 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:43,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:43,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:43,492 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:43,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:43,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1219759905, now seen corresponding path program 1 times [2024-12-02 15:24:43,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:43,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236447712] [2024-12-02 15:24:43,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:43,493 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 15:24:43,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:43,496 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:43,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:43,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-12-02 15:24:43,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:43,908 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 14 treesize of output 10 [2024-12-02 15:24:44,244 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 47 treesize of output 34 [2024-12-02 15:24:44,499 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:44,499 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 15:24:44,818 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:44,819 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 15:24:45,220 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:45,221 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 15:24:45,472 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:45,473 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 87 treesize of output 76 [2024-12-02 15:24:45,665 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:45,666 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 85 treesize of output 84 [2024-12-02 15:24:45,723 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:45,723 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 85 treesize of output 84 [2024-12-02 15:24:45,813 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:45,813 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 81 treesize of output 84 [2024-12-02 15:24:46,452 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:46,453 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 113 treesize of output 53 [2024-12-02 15:24:46,563 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 370 proven. 42 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-12-02 15:24:46,563 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:24:46,922 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:24:46,922 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:46,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236447712] [2024-12-02 15:24:46,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236447712] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:24:46,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:24:46,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 21 [2024-12-02 15:24:46,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992853042] [2024-12-02 15:24:46,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:24:46,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:24:46,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:46,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:24:46,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2024-12-02 15:24:46,923 INFO L87 Difference]: Start difference. First operand 226 states and 281 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:24:47,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:47,543 INFO L93 Difference]: Finished difference Result 234 states and 290 transitions. [2024-12-02 15:24:47,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:24:47,544 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-12-02 15:24:47,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:47,545 INFO L225 Difference]: With dead ends: 234 [2024-12-02 15:24:47,545 INFO L226 Difference]: Without dead ends: 232 [2024-12-02 15:24:47,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2024-12-02 15:24:47,546 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 61 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:47,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 502 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 15:24:47,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-12-02 15:24:47,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2024-12-02 15:24:47,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 188 states have (on average 1.1648936170212767) internal successors, (219), 190 states have internal predecessors, (219), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:24:47,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 287 transitions. [2024-12-02 15:24:47,603 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 287 transitions. Word has length 143 [2024-12-02 15:24:47,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:47,603 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 287 transitions. [2024-12-02 15:24:47,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:24:47,604 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 287 transitions. [2024-12-02 15:24:47,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 15:24:47,605 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:47,605 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:47,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:47,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:47,805 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:47,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:47,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1217912863, now seen corresponding path program 1 times [2024-12-02 15:24:47,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:47,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171592704] [2024-12-02 15:24:47,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:47,806 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 15:24:47,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:47,808 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:47,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:48,162 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 15:24:48,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:48,344 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 15:24:48,590 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:48,591 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 158 treesize of output 108 [2024-12-02 15:24:48,775 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:48,776 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 166 treesize of output 105 [2024-12-02 15:24:48,866 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:48,866 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 166 treesize of output 105 [2024-12-02 15:24:48,980 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:48,981 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 162 treesize of output 105 [2024-12-02 15:24:49,599 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:49,600 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 256 treesize of output 88 [2024-12-02 15:24:49,671 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 15:24:49,671 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:24:49,922 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:49,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171592704] [2024-12-02 15:24:49,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171592704] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:24:49,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1097416305] [2024-12-02 15:24:49,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:49,922 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 15:24:49,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 15:24:49,933 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 15:24:49,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2024-12-02 15:24:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:51,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 15:24:51,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:51,820 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 15:24:52,438 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 0 case distinctions, treesize of input 122 treesize of output 92 [2024-12-02 15:24:52,872 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:52,872 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 130 treesize of output 93 [2024-12-02 15:24:52,979 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:52,979 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 130 treesize of output 93 [2024-12-02 15:24:53,124 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:53,124 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 130 treesize of output 93 [2024-12-02 15:24:54,091 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:54,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 88 [2024-12-02 15:24:54,114 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 15:24:54,114 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:24:54,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1097416305] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:24:54,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:24:54,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [9] total 18 [2024-12-02 15:24:54,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487664680] [2024-12-02 15:24:54,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:24:54,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 15:24:54,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:54,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 15:24:54,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2024-12-02 15:24:54,116 INFO L87 Difference]: Start difference. First operand 232 states and 287 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:24:57,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:57,866 INFO L93 Difference]: Finished difference Result 627 states and 767 transitions. [2024-12-02 15:24:57,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 15:24:57,867 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-12-02 15:24:57,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:57,870 INFO L225 Difference]: With dead ends: 627 [2024-12-02 15:24:57,870 INFO L226 Difference]: Without dead ends: 425 [2024-12-02 15:24:57,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-12-02 15:24:57,873 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 203 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:57,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 596 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 15:24:57,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-12-02 15:24:57,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 422. [2024-12-02 15:24:57,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 347 states have (on average 1.1498559077809798) internal successors, (399), 351 states have internal predecessors, (399), 57 states have call successors, (57), 17 states have call predecessors, (57), 17 states have return successors, (57), 53 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 15:24:57,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 513 transitions. [2024-12-02 15:24:57,977 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 513 transitions. Word has length 143 [2024-12-02 15:24:57,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:57,977 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 513 transitions. [2024-12-02 15:24:57,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:24:57,977 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 513 transitions. [2024-12-02 15:24:57,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 15:24:57,979 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:57,979 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:57,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:58,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2024-12-02 15:24:58,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 15:24:58,380 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:58,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:58,380 INFO L85 PathProgramCache]: Analyzing trace with hash 557094499, now seen corresponding path program 1 times [2024-12-02 15:24:58,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:58,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785430832] [2024-12-02 15:24:58,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:58,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:24:58,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:58,382 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:24:58,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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)] Waiting until timeout for monitored process [2024-12-02 15:24:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:58,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 15:24:58,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:58,794 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 15:24:58,802 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:58,802 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 46 treesize of output 42 [2024-12-02 15:24:58,852 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:58,852 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 48 [2024-12-02 15:24:58,904 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:58,905 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 54 [2024-12-02 15:24:58,993 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:58,993 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 63 treesize of output 54 [2024-12-02 15:24:59,289 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:59,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 39 [2024-12-02 15:24:59,322 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:24:59,323 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:24:59,323 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:59,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785430832] [2024-12-02 15:24:59,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785430832] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:24:59,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:24:59,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 15:24:59,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119511002] [2024-12-02 15:24:59,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:24:59,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:24:59,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:59,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:24:59,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:24:59,325 INFO L87 Difference]: Start difference. First operand 422 states and 513 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:25:01,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:25:01,066 INFO L93 Difference]: Finished difference Result 834 states and 1007 transitions. [2024-12-02 15:25:01,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:25:01,067 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-12-02 15:25:01,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:25:01,069 INFO L225 Difference]: With dead ends: 834 [2024-12-02 15:25:01,069 INFO L226 Difference]: Without dead ends: 442 [2024-12-02 15:25:01,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:25:01,070 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 174 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:25:01,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 456 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 15:25:01,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-12-02 15:25:01,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 438. [2024-12-02 15:25:01,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 357 states have (on average 1.134453781512605) internal successors, (405), 361 states have internal predecessors, (405), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 15:25:01,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 527 transitions. [2024-12-02 15:25:01,188 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 527 transitions. Word has length 143 [2024-12-02 15:25:01,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:25:01,189 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 527 transitions. [2024-12-02 15:25:01,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:25:01,189 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 527 transitions. [2024-12-02 15:25:01,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 15:25:01,190 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:25:01,190 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:25:01,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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)] Ended with exit code 0 [2024-12-02 15:25:01,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:01,391 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:25:01,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:25:01,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1237152869, now seen corresponding path program 1 times [2024-12-02 15:25:01,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:25:01,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35287170] [2024-12-02 15:25:01,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:25:01,392 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 15:25:01,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:25:01,394 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:01,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:25:01,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 15:25:01,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:25:01,802 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 15:25:01,993 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 37 treesize of output 30 [2024-12-02 15:25:02,164 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:02,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 33 [2024-12-02 15:25:02,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:02,265 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 79 treesize of output 65 [2024-12-02 15:25:02,494 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:02,494 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 77 treesize of output 82 [2024-12-02 15:25:02,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:02,638 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 92 treesize of output 85 [2024-12-02 15:25:02,734 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:02,735 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 88 treesize of output 85 [2024-12-02 15:25:03,176 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:03,176 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 110 treesize of output 50 [2024-12-02 15:25:03,299 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 238 proven. 18 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 15:25:03,300 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:25:03,924 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 15:25:03,924 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:25:03,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35287170] [2024-12-02 15:25:03,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [35287170] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:25:03,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:25:03,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [19] total 24 [2024-12-02 15:25:03,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113499470] [2024-12-02 15:25:03,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:25:03,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 15:25:03,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:25:03,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 15:25:03,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2024-12-02 15:25:03,925 INFO L87 Difference]: Start difference. First operand 438 states and 527 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:25:05,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:25:05,290 INFO L93 Difference]: Finished difference Result 1039 states and 1248 transitions. [2024-12-02 15:25:05,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:25:05,291 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-12-02 15:25:05,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:25:05,293 INFO L225 Difference]: With dead ends: 1039 [2024-12-02 15:25:05,293 INFO L226 Difference]: Without dead ends: 631 [2024-12-02 15:25:05,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2024-12-02 15:25:05,294 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 82 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:25:05,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 591 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 15:25:05,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-12-02 15:25:05,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 516. [2024-12-02 15:25:05,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 435 states have (on average 1.1471264367816092) internal successors, (499), 439 states have internal predecessors, (499), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 15:25:05,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 621 transitions. [2024-12-02 15:25:05,421 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 621 transitions. Word has length 143 [2024-12-02 15:25:05,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:25:05,421 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 621 transitions. [2024-12-02 15:25:05,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 15:25:05,421 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 621 transitions. [2024-12-02 15:25:05,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 15:25:05,422 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:25:05,422 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:25:05,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:05,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:05,622 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:25:05,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:25:05,623 INFO L85 PathProgramCache]: Analyzing trace with hash 650346855, now seen corresponding path program 1 times [2024-12-02 15:25:05,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:25:05,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182547768] [2024-12-02 15:25:05,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:25:05,623 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 15:25:05,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:25:05,625 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:05,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:25:05,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 15:25:05,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:25:05,990 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 15:25:06,166 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 42 treesize of output 20 [2024-12-02 15:25:06,246 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 42 treesize of output 20 [2024-12-02 15:25:06,330 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 42 treesize of output 20 [2024-12-02 15:25:06,389 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:06,389 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 66 treesize of output 40 [2024-12-02 15:25:06,467 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:06,467 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 59 treesize of output 43 [2024-12-02 15:25:06,500 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:06,500 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 59 treesize of output 43 [2024-12-02 15:25:06,547 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:06,548 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 55 treesize of output 43 [2024-12-02 15:25:06,713 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:06,713 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 67 treesize of output 31 [2024-12-02 15:25:06,732 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 30 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-12-02 15:25:06,732 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:25:07,115 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 60 proven. 30 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-12-02 15:25:07,116 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:25:07,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182547768] [2024-12-02 15:25:07,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182547768] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:25:07,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:25:07,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 16 [2024-12-02 15:25:07,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039831003] [2024-12-02 15:25:07,116 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:25:07,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 15:25:07,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:25:07,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 15:25:07,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-12-02 15:25:07,117 INFO L87 Difference]: Start difference. First operand 516 states and 621 transitions. Second operand has 16 states, 12 states have (on average 8.666666666666666) internal successors, (104), 16 states have internal predecessors, (104), 7 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 3 states have call predecessors, (24), 7 states have call successors, (24) [2024-12-02 15:25:08,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:25:08,810 INFO L93 Difference]: Finished difference Result 998 states and 1196 transitions. [2024-12-02 15:25:08,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 15:25:08,811 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 8.666666666666666) internal successors, (104), 16 states have internal predecessors, (104), 7 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 3 states have call predecessors, (24), 7 states have call successors, (24) Word has length 143 [2024-12-02 15:25:08,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:25:08,813 INFO L225 Difference]: With dead ends: 998 [2024-12-02 15:25:08,813 INFO L226 Difference]: Without dead ends: 512 [2024-12-02 15:25:08,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 269 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=151, Invalid=401, Unknown=0, NotChecked=0, Total=552 [2024-12-02 15:25:08,813 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 116 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:25:08,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 448 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 15:25:08,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-12-02 15:25:08,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 508. [2024-12-02 15:25:08,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 427 states have (on average 1.1311475409836065) internal successors, (483), 431 states have internal predecessors, (483), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 15:25:08,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 605 transitions. [2024-12-02 15:25:08,926 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 605 transitions. Word has length 143 [2024-12-02 15:25:08,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:25:08,926 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 605 transitions. [2024-12-02 15:25:08,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 8.666666666666666) internal successors, (104), 16 states have internal predecessors, (104), 7 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 3 states have call predecessors, (24), 7 states have call successors, (24) [2024-12-02 15:25:08,926 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 605 transitions. [2024-12-02 15:25:08,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 15:25:08,927 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:25:08,927 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:25:08,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:09,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:09,128 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:25:09,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:25:09,128 INFO L85 PathProgramCache]: Analyzing trace with hash -421944635, now seen corresponding path program 1 times [2024-12-02 15:25:09,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:25:09,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448885783] [2024-12-02 15:25:09,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:25:09,128 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 15:25:09,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:25:09,130 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:09,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:25:09,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 15:25:09,457 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:25:09,465 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 15:25:09,468 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 15:25:09,528 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 15:25:09,648 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:09,649 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 15:25:09,829 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:09,829 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 15:25:10,034 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:10,034 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 15:25:10,176 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:10,176 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 15:25:10,430 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:10,430 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 65 treesize of output 76 [2024-12-02 15:25:10,670 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:10,670 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 15:25:10,852 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:10,852 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 107 treesize of output 102 [2024-12-02 15:25:11,053 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:11,053 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 115 treesize of output 108 [2024-12-02 15:25:11,289 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:11,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 134 treesize of output 124 [2024-12-02 15:25:11,525 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:11,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 125 treesize of output 125 [2024-12-02 15:25:11,723 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:11,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 130 treesize of output 52 [2024-12-02 15:25:11,779 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-12-02 15:25:11,779 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:25:11,779 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:25:11,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448885783] [2024-12-02 15:25:11,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448885783] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:25:11,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:25:11,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 15:25:11,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839811697] [2024-12-02 15:25:11,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:25:11,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 15:25:11,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:25:11,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 15:25:11,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:25:11,781 INFO L87 Difference]: Start difference. First operand 508 states and 605 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 7 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-12-02 15:25:14,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:25:14,832 INFO L93 Difference]: Finished difference Result 953 states and 1126 transitions. [2024-12-02 15:25:14,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:25:14,833 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 7 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 143 [2024-12-02 15:25:14,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:25:14,835 INFO L225 Difference]: With dead ends: 953 [2024-12-02 15:25:14,835 INFO L226 Difference]: Without dead ends: 475 [2024-12-02 15:25:14,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 131 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=67, Invalid=89, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:25:14,835 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 339 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 15:25:14,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 295 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 15:25:14,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-12-02 15:25:14,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 473. [2024-12-02 15:25:14,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 392 states have (on average 1.1096938775510203) internal successors, (435), 396 states have internal predecessors, (435), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 15:25:14,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 557 transitions. [2024-12-02 15:25:14,947 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 557 transitions. Word has length 143 [2024-12-02 15:25:14,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:25:14,947 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 557 transitions. [2024-12-02 15:25:14,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 7 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-12-02 15:25:14,948 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 557 transitions. [2024-12-02 15:25:14,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 15:25:14,948 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:25:14,948 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:25:14,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:15,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:15,149 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:25:15,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:25:15,149 INFO L85 PathProgramCache]: Analyzing trace with hash -969766369, now seen corresponding path program 1 times [2024-12-02 15:25:15,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:25:15,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573324512] [2024-12-02 15:25:15,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:25:15,150 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 15:25:15,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:25:15,151 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:15,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:25:15,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:25:15,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:25:15,413 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 15:25:15,413 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:25:15,413 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:25:15,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573324512] [2024-12-02 15:25:15,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573324512] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:25:15,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:25:15,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:25:15,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809989719] [2024-12-02 15:25:15,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:25:15,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:25:15,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:25:15,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:25:15,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:25:15,414 INFO L87 Difference]: Start difference. First operand 473 states and 557 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:25:15,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:25:15,552 INFO L93 Difference]: Finished difference Result 916 states and 1074 transitions. [2024-12-02 15:25:15,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:25:15,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-12-02 15:25:15,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:25:15,554 INFO L225 Difference]: With dead ends: 916 [2024-12-02 15:25:15,554 INFO L226 Difference]: Without dead ends: 473 [2024-12-02 15:25:15,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 140 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 15:25:15,555 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 379 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 15:25:15,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 379 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:25:15,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-12-02 15:25:15,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2024-12-02 15:25:15,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 392 states have (on average 1.1071428571428572) internal successors, (434), 396 states have internal predecessors, (434), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (61), 57 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 15:25:15,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 556 transitions. [2024-12-02 15:25:15,680 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 556 transitions. Word has length 143 [2024-12-02 15:25:15,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:25:15,680 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 556 transitions. [2024-12-02 15:25:15,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:25:15,680 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 556 transitions. [2024-12-02 15:25:15,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 15:25:15,681 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:25:15,681 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:25:15,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:15,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:15,882 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:25:15,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:25:15,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1572302713, now seen corresponding path program 1 times [2024-12-02 15:25:15,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:25:15,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990037032] [2024-12-02 15:25:15,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:25:15,882 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 15:25:15,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:25:15,884 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:15,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:25:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:25:16,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-12-02 15:25:16,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:25:16,195 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 91 treesize of output 90 [2024-12-02 15:25:16,360 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 134 treesize of output 121 [2024-12-02 15:25:16,739 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 134 treesize of output 119 [2024-12-02 15:25:17,204 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 134 treesize of output 119 [2024-12-02 15:25:17,797 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 139 treesize of output 124 [2024-12-02 15:25:18,543 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 134 treesize of output 119 [2024-12-02 15:25:20,635 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 145 treesize of output 128 [2024-12-02 15:25:22,978 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 134 treesize of output 121 [2024-12-02 15:25:25,336 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 139 treesize of output 124 [2024-12-02 15:25:30,781 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 144 treesize of output 127 [2024-12-02 15:25:36,088 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 169 treesize of output 150 [2024-12-02 15:25:39,579 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 152 treesize of output 133 [2024-12-02 15:25:46,599 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 158 treesize of output 136 [2024-12-02 15:25:47,090 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 13 proven. 478 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 15:25:47,090 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:25:51,491 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:25:51,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990037032] [2024-12-02 15:25:51,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990037032] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:25:51,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1010078186] [2024-12-02 15:25:51,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:25:51,491 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 15:25:51,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 15:25:51,493 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 15:25:51,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-12-02 15:25:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:25:52,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-02 15:25:52,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:25:52,373 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 55 treesize of output 54 [2024-12-02 15:25:58,237 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 115 treesize of output 86 [2024-12-02 15:25:59,917 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 112 treesize of output 85 [2024-12-02 15:26:01,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 84 [2024-12-02 15:26:06,448 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 106 treesize of output 83 [2024-12-02 15:26:17,442 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 103 treesize of output 82 [2024-12-02 15:26:41,102 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 103 treesize of output 82 [2024-12-02 15:27:19,861 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 100 treesize of output 81 [2024-12-02 15:27:41,652 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-12-02 15:27:41,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2024-12-02 15:27:41,653 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-12-02 15:27:41,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 15:27:41,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2024-12-02 15:27:42,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 15:27:42,054 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:912) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:786) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:323) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:555) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 45 more [2024-12-02 15:27:42,058 INFO L158 Benchmark]: Toolchain (without parser) took 242653.84ms. Allocated memory was 92.3MB in the beginning and 209.7MB in the end (delta: 117.4MB). Free memory was 69.2MB in the beginning and 65.8MB in the end (delta: 3.5MB). Peak memory consumption was 117.4MB. Max. memory is 16.1GB. [2024-12-02 15:27:42,059 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:27:42,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.22ms. Allocated memory is still 92.3MB. Free memory was 69.1MB in the beginning and 52.1MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:27:42,059 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.46ms. Allocated memory is still 92.3MB. Free memory was 52.1MB in the beginning and 49.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:27:42,059 INFO L158 Benchmark]: Boogie Preprocessor took 63.71ms. Allocated memory is still 92.3MB. Free memory was 49.1MB in the beginning and 45.1MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 15:27:42,059 INFO L158 Benchmark]: RCFGBuilder took 635.07ms. Allocated memory is still 92.3MB. Free memory was 45.0MB in the beginning and 42.7MB in the end (delta: 2.2MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-12-02 15:27:42,059 INFO L158 Benchmark]: TraceAbstraction took 241617.51ms. Allocated memory was 92.3MB in the beginning and 209.7MB in the end (delta: 117.4MB). Free memory was 42.3MB in the beginning and 65.8MB in the end (delta: -23.4MB). Peak memory consumption was 96.1MB. Max. memory is 16.1GB. [2024-12-02 15:27:42,061 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.22ms. Allocated memory is still 92.3MB. Free memory was 69.1MB in the beginning and 52.1MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.46ms. Allocated memory is still 92.3MB. Free memory was 52.1MB in the beginning and 49.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.71ms. Allocated memory is still 92.3MB. Free memory was 49.1MB in the beginning and 45.1MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 635.07ms. Allocated memory is still 92.3MB. Free memory was 45.0MB in the beginning and 42.7MB in the end (delta: 2.2MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * TraceAbstraction took 241617.51ms. Allocated memory was 92.3MB in the beginning and 209.7MB in the end (delta: 117.4MB). Free memory was 42.3MB in the beginning and 65.8MB in the end (delta: -23.4MB). Peak memory consumption was 96.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ada95b-cea4-4271-bdea-669baa88e788/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")