./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.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_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/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_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/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_f08d05e7-37b2-4bf4-8931-77ff54961dfc/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 d2a0584d4779790e33dcddf636884f56e9964183aa5c7648270a93d40ce062b0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:31:45,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:31:46,015 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:31:46,020 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:31:46,020 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:31:46,040 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:31:46,041 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:31:46,041 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:31:46,041 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:31:46,041 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:31:46,041 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:31:46,041 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:31:46,042 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:31:46,042 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:31:46,042 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:31:46,042 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:31:46,042 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:31:46,042 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:31:46,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:31:46,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:31:46,042 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:31:46,042 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:31:46,042 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:31:46,043 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:31:46,043 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:31:46,043 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:31:46,043 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:31:46,043 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:31:46,043 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:31:46,043 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:31:46,043 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:31:46,043 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:31:46,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:31:46,043 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:31:46,043 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:31:46,043 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:31:46,044 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:31:46,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:31:46,044 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:31:46,044 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:31:46,044 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:31:46,044 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:31:46,044 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:31:46,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:31:46,044 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:31:46,044 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:31:46,044 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:31:46,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:31:46,045 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_f08d05e7-37b2-4bf4-8931-77ff54961dfc/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 -> d2a0584d4779790e33dcddf636884f56e9964183aa5c7648270a93d40ce062b0 [2024-12-02 07:31:46,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:31:46,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:31:46,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:31:46,286 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:31:46,287 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:31:46,288 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i [2024-12-02 07:31:48,921 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/data/d9cbdefe7/ac61681cdad1441781496ff5c1010d51/FLAGda681085b [2024-12-02 07:31:49,126 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:31:49,126 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i [2024-12-02 07:31:49,132 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/data/d9cbdefe7/ac61681cdad1441781496ff5c1010d51/FLAGda681085b [2024-12-02 07:31:49,143 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/data/d9cbdefe7/ac61681cdad1441781496ff5c1010d51 [2024-12-02 07:31:49,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:31:49,145 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:31:49,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:31:49,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:31:49,149 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:31:49,149 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:31:49" (1/1) ... [2024-12-02 07:31:49,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3090b1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:49, skipping insertion in model container [2024-12-02 07:31:49,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:31:49" (1/1) ... [2024-12-02 07:31:49,164 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:31:49,285 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_f08d05e7-37b2-4bf4-8931-77ff54961dfc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i[916,929] [2024-12-02 07:31:49,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:31:49,350 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:31:49,359 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_f08d05e7-37b2-4bf4-8931-77ff54961dfc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i[916,929] [2024-12-02 07:31:49,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:31:49,411 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:31:49,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:49 WrapperNode [2024-12-02 07:31:49,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:31:49,412 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:31:49,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:31:49,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:31:49,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:49" (1/1) ... [2024-12-02 07:31:49,430 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:49" (1/1) ... [2024-12-02 07:31:49,460 INFO L138 Inliner]: procedures = 29, calls = 191, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 603 [2024-12-02 07:31:49,461 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:31:49,461 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:31:49,461 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:31:49,461 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:31:49,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:49" (1/1) ... [2024-12-02 07:31:49,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:49" (1/1) ... [2024-12-02 07:31:49,475 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:49" (1/1) ... [2024-12-02 07:31:49,488 INFO L175 MemorySlicer]: Split 160 memory accesses to 5 slices as follows [2, 32, 22, 97, 7]. 61 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 3, 3, 5, 1]. The 16 writes are split as follows [0, 3, 7, 5, 1]. [2024-12-02 07:31:49,488 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:49" (1/1) ... [2024-12-02 07:31:49,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:49" (1/1) ... [2024-12-02 07:31:49,509 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:49" (1/1) ... [2024-12-02 07:31:49,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:49" (1/1) ... [2024-12-02 07:31:49,515 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:49" (1/1) ... [2024-12-02 07:31:49,518 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:49" (1/1) ... [2024-12-02 07:31:49,520 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:49" (1/1) ... [2024-12-02 07:31:49,524 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:31:49,525 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:31:49,525 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:31:49,525 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:31:49,526 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:49" (1/1) ... [2024-12-02 07:31:49,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:31:49,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:31:49,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:31:49,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:31:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:31:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-12-02 07:31:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-12-02 07:31:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-12-02 07:31:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-12-02 07:31:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-12-02 07:31:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 07:31:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 07:31:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 07:31:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 07:31:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 07:31:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-12-02 07:31:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-12-02 07:31:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-12-02 07:31:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-12-02 07:31:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-12-02 07:31:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 07:31:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 07:31:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 07:31:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 07:31:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 07:31:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-12-02 07:31:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-12-02 07:31:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-12-02 07:31:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-12-02 07:31:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-12-02 07:31:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:31:49,583 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:31:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:31:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 07:31:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 07:31:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 07:31:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 07:31:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:31:49,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:31:49,707 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:31:49,709 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:31:50,135 INFO L? ?]: Removed 188 outVars from TransFormulas that were not future-live. [2024-12-02 07:31:50,135 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:31:50,146 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:31:50,146 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:31:50,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:31:50 BoogieIcfgContainer [2024-12-02 07:31:50,146 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:31:50,148 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:31:50,149 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:31:50,153 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:31:50,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:31:49" (1/3) ... [2024-12-02 07:31:50,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d1dda0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:31:50, skipping insertion in model container [2024-12-02 07:31:50,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:31:49" (2/3) ... [2024-12-02 07:31:50,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d1dda0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:31:50, skipping insertion in model container [2024-12-02 07:31:50,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:31:50" (3/3) ... [2024-12-02 07:31:50,155 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-39.i [2024-12-02 07:31:50,169 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:31:50,171 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-39.i that has 2 procedures, 120 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:31:50,235 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:31:50,246 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;@1f8dabbd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:31:50,247 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:31:50,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 101 states have (on average 1.4356435643564356) internal successors, (145), 102 states have internal predecessors, (145), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:31:50,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 07:31:50,260 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:31:50,261 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:50,261 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:31:50,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:31:50,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1938211499, now seen corresponding path program 1 times [2024-12-02 07:31:50,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:31:50,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321012329] [2024-12-02 07:31:50,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:50,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:31:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:31:50,519 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-12-02 07:31:50,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:31:50,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321012329] [2024-12-02 07:31:50,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321012329] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:31:50,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885797680] [2024-12-02 07:31:50,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:50,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:31:50,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:31:50,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:31:50,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:31:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:31:50,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:31:50,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:31:50,777 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-12-02 07:31:50,778 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:31:50,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885797680] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:31:50,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:31:50,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 07:31:50,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360089337] [2024-12-02 07:31:50,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:31:50,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:31:50,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:31:50,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:31:50,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:31:50,798 INFO L87 Difference]: Start difference. First operand has 120 states, 101 states have (on average 1.4356435643564356) internal successors, (145), 102 states have internal predecessors, (145), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:31:50,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:31:50,824 INFO L93 Difference]: Finished difference Result 233 states and 364 transitions. [2024-12-02 07:31:50,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:31:50,826 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2024-12-02 07:31:50,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:31:50,831 INFO L225 Difference]: With dead ends: 233 [2024-12-02 07:31:50,831 INFO L226 Difference]: Without dead ends: 116 [2024-12-02 07:31:50,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 129 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 07:31:50,835 INFO L435 NwaCegarLoop]: 170 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, 170 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 07:31:50,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:31:50,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-12-02 07:31:50,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-12-02 07:31:50,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 98 states have (on average 1.4081632653061225) internal successors, (138), 98 states have internal predecessors, (138), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:31:50,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 170 transitions. [2024-12-02 07:31:50,869 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 170 transitions. Word has length 128 [2024-12-02 07:31:50,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:31:50,869 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 170 transitions. [2024-12-02 07:31:50,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:31:50,869 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 170 transitions. [2024-12-02 07:31:50,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 07:31:50,872 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:31:50,872 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:50,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:31:51,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 07:31:51,073 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:31:51,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:31:51,073 INFO L85 PathProgramCache]: Analyzing trace with hash -321601841, now seen corresponding path program 1 times [2024-12-02 07:31:51,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:31:51,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18963827] [2024-12-02 07:31:51,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:51,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:31:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:31:54,789 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:31:54,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:31:54,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18963827] [2024-12-02 07:31:54,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18963827] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:31:54,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:31:54,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 07:31:54,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483473153] [2024-12-02 07:31:54,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:31:54,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:31:54,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:31:54,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:31:54,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:31:54,792 INFO L87 Difference]: Start difference. First operand 116 states and 170 transitions. Second operand has 15 states, 13 states have (on average 3.923076923076923) internal successors, (51), 15 states have internal predecessors, (51), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 07:31:56,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:31:56,591 INFO L93 Difference]: Finished difference Result 390 states and 571 transitions. [2024-12-02 07:31:56,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:31:56,592 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.923076923076923) internal successors, (51), 15 states have internal predecessors, (51), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) Word has length 128 [2024-12-02 07:31:56,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:31:56,594 INFO L225 Difference]: With dead ends: 390 [2024-12-02 07:31:56,594 INFO L226 Difference]: Without dead ends: 277 [2024-12-02 07:31:56,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2024-12-02 07:31:56,595 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 298 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:31:56,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 1900 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 07:31:56,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-12-02 07:31:56,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 271. [2024-12-02 07:31:56,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 239 states have (on average 1.4351464435146444) internal successors, (343), 241 states have internal predecessors, (343), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 07:31:56,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 399 transitions. [2024-12-02 07:31:56,622 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 399 transitions. Word has length 128 [2024-12-02 07:31:56,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:31:56,622 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 399 transitions. [2024-12-02 07:31:56,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.923076923076923) internal successors, (51), 15 states have internal predecessors, (51), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 07:31:56,623 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 399 transitions. [2024-12-02 07:31:56,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 07:31:56,625 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:31:56,625 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:56,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:31:56,625 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:31:56,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:31:56,626 INFO L85 PathProgramCache]: Analyzing trace with hash 358456529, now seen corresponding path program 1 times [2024-12-02 07:31:56,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:31:56,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008749777] [2024-12-02 07:31:56,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:56,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:31:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:31:57,492 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:31:57,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:31:57,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008749777] [2024-12-02 07:31:57,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008749777] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:31:57,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:31:57,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:31:57,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589290381] [2024-12-02 07:31:57,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:31:57,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:31:57,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:31:57,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:31:57,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:31:57,495 INFO L87 Difference]: Start difference. First operand 271 states and 399 transitions. Second operand has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 07:31:58,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:31:58,007 INFO L93 Difference]: Finished difference Result 629 states and 924 transitions. [2024-12-02 07:31:58,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:31:58,008 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) Word has length 128 [2024-12-02 07:31:58,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:31:58,012 INFO L225 Difference]: With dead ends: 629 [2024-12-02 07:31:58,012 INFO L226 Difference]: Without dead ends: 361 [2024-12-02 07:31:58,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:31:58,014 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 127 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:31:58,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 833 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:31:58,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-12-02 07:31:58,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 297. [2024-12-02 07:31:58,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 264 states have (on average 1.4318181818181819) internal successors, (378), 266 states have internal predecessors, (378), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 07:31:58,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 434 transitions. [2024-12-02 07:31:58,045 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 434 transitions. Word has length 128 [2024-12-02 07:31:58,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:31:58,046 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 434 transitions. [2024-12-02 07:31:58,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 07:31:58,046 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 434 transitions. [2024-12-02 07:31:58,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 07:31:58,048 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:31:58,048 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:58,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:31:58,049 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:31:58,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:31:58,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1909949743, now seen corresponding path program 1 times [2024-12-02 07:31:58,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:31:58,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606864317] [2024-12-02 07:31:58,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:58,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:31:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:31:58,761 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:31:58,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:31:58,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606864317] [2024-12-02 07:31:58,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606864317] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:31:58,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:31:58,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:31:58,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837893309] [2024-12-02 07:31:58,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:31:58,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:31:58,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:31:58,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:31:58,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:31:58,763 INFO L87 Difference]: Start difference. First operand 297 states and 434 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:31:59,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:31:59,228 INFO L93 Difference]: Finished difference Result 599 states and 871 transitions. [2024-12-02 07:31:59,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:31:59,228 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2024-12-02 07:31:59,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:31:59,231 INFO L225 Difference]: With dead ends: 599 [2024-12-02 07:31:59,231 INFO L226 Difference]: Without dead ends: 305 [2024-12-02 07:31:59,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:31:59,232 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 124 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:31:59,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1084 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:31:59,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-12-02 07:31:59,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 239. [2024-12-02 07:31:59,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 211 states have (on average 1.4170616113744077) internal successors, (299), 212 states have internal predecessors, (299), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 07:31:59,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 345 transitions. [2024-12-02 07:31:59,248 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 345 transitions. Word has length 128 [2024-12-02 07:31:59,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:31:59,249 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 345 transitions. [2024-12-02 07:31:59,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:31:59,249 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 345 transitions. [2024-12-02 07:31:59,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 07:31:59,250 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:31:59,250 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:59,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:31:59,251 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:31:59,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:31:59,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1229891373, now seen corresponding path program 1 times [2024-12-02 07:31:59,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:31:59,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201045058] [2024-12-02 07:31:59,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:59,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:31:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:00,642 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:32:00,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:32:00,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201045058] [2024-12-02 07:32:00,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201045058] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:00,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:00,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:32:00,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587392746] [2024-12-02 07:32:00,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:00,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:32:00,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:32:00,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:32:00,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:32:00,644 INFO L87 Difference]: Start difference. First operand 239 states and 345 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:32:01,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:01,895 INFO L93 Difference]: Finished difference Result 559 states and 809 transitions. [2024-12-02 07:32:01,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:32:01,896 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2024-12-02 07:32:01,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:01,898 INFO L225 Difference]: With dead ends: 559 [2024-12-02 07:32:01,898 INFO L226 Difference]: Without dead ends: 323 [2024-12-02 07:32:01,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:32:01,900 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 260 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:01,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1179 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 07:32:01,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-12-02 07:32:01,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 260. [2024-12-02 07:32:01,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 232 states have (on average 1.4224137931034482) internal successors, (330), 233 states have internal predecessors, (330), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 07:32:01,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 376 transitions. [2024-12-02 07:32:01,918 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 376 transitions. Word has length 128 [2024-12-02 07:32:01,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:01,919 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 376 transitions. [2024-12-02 07:32:01,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:32:01,919 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 376 transitions. [2024-12-02 07:32:01,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 07:32:01,920 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:01,920 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:01,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:32:01,921 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:01,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:01,921 INFO L85 PathProgramCache]: Analyzing trace with hash -2071281815, now seen corresponding path program 1 times [2024-12-02 07:32:01,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:32:01,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509313704] [2024-12-02 07:32:01,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:01,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:32:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:03,246 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:32:03,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:32:03,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509313704] [2024-12-02 07:32:03,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509313704] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:03,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:03,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 07:32:03,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151740854] [2024-12-02 07:32:03,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:03,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:32:03,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:32:03,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:32:03,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:32:03,248 INFO L87 Difference]: Start difference. First operand 260 states and 376 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:32:03,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:03,913 INFO L93 Difference]: Finished difference Result 591 states and 852 transitions. [2024-12-02 07:32:03,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:32:03,913 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 129 [2024-12-02 07:32:03,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:03,915 INFO L225 Difference]: With dead ends: 591 [2024-12-02 07:32:03,915 INFO L226 Difference]: Without dead ends: 334 [2024-12-02 07:32:03,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:32:03,916 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 129 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:03,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1393 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:32:03,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-12-02 07:32:03,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 235. [2024-12-02 07:32:03,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 207 states have (on average 1.4154589371980677) internal successors, (293), 208 states have internal predecessors, (293), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 07:32:03,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 339 transitions. [2024-12-02 07:32:03,936 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 339 transitions. Word has length 129 [2024-12-02 07:32:03,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:03,936 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 339 transitions. [2024-12-02 07:32:03,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:32:03,936 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 339 transitions. [2024-12-02 07:32:03,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 07:32:03,938 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:03,938 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:03,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:32:03,938 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:03,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:03,939 INFO L85 PathProgramCache]: Analyzing trace with hash -541234758, now seen corresponding path program 1 times [2024-12-02 07:32:03,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:32:03,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057401516] [2024-12-02 07:32:03,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:03,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:32:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:04,241 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:32:04,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:32:04,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057401516] [2024-12-02 07:32:04,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057401516] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:04,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:04,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:32:04,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359738957] [2024-12-02 07:32:04,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:04,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:32:04,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:32:04,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:32:04,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:32:04,243 INFO L87 Difference]: Start difference. First operand 235 states and 339 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:04,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:04,519 INFO L93 Difference]: Finished difference Result 633 states and 910 transitions. [2024-12-02 07:32:04,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:32:04,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 130 [2024-12-02 07:32:04,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:04,522 INFO L225 Difference]: With dead ends: 633 [2024-12-02 07:32:04,522 INFO L226 Difference]: Without dead ends: 401 [2024-12-02 07:32:04,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 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 07:32:04,523 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 118 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:04,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 784 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:32:04,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-12-02 07:32:04,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 258. [2024-12-02 07:32:04,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 230 states have (on average 1.4217391304347826) internal successors, (327), 231 states have internal predecessors, (327), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 07:32:04,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 373 transitions. [2024-12-02 07:32:04,546 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 373 transitions. Word has length 130 [2024-12-02 07:32:04,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:04,547 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 373 transitions. [2024-12-02 07:32:04,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:04,547 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 373 transitions. [2024-12-02 07:32:04,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 07:32:04,548 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:04,549 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:04,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:32:04,549 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:04,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:04,549 INFO L85 PathProgramCache]: Analyzing trace with hash 420940497, now seen corresponding path program 1 times [2024-12-02 07:32:04,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:32:04,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295046293] [2024-12-02 07:32:04,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:04,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:32:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:05,722 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:32:05,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:32:05,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295046293] [2024-12-02 07:32:05,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295046293] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:05,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:05,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:32:05,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708652876] [2024-12-02 07:32:05,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:05,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:32:05,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:32:05,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:32:05,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:32:05,724 INFO L87 Difference]: Start difference. First operand 258 states and 373 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:06,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:06,403 INFO L93 Difference]: Finished difference Result 612 states and 882 transitions. [2024-12-02 07:32:06,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:32:06,404 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 131 [2024-12-02 07:32:06,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:06,406 INFO L225 Difference]: With dead ends: 612 [2024-12-02 07:32:06,406 INFO L226 Difference]: Without dead ends: 357 [2024-12-02 07:32:06,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:32:06,407 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 120 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:06,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1351 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:32:06,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-12-02 07:32:06,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 258. [2024-12-02 07:32:06,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 230 states have (on average 1.4173913043478261) internal successors, (326), 231 states have internal predecessors, (326), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 07:32:06,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 372 transitions. [2024-12-02 07:32:06,424 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 372 transitions. Word has length 131 [2024-12-02 07:32:06,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:06,425 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 372 transitions. [2024-12-02 07:32:06,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:06,425 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 372 transitions. [2024-12-02 07:32:06,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 07:32:06,426 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:06,426 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:06,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:32:06,426 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:06,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:06,427 INFO L85 PathProgramCache]: Analyzing trace with hash -842538372, now seen corresponding path program 1 times [2024-12-02 07:32:06,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:32:06,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436676511] [2024-12-02 07:32:06,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:06,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:32:06,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:06,548 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:32:06,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:32:06,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436676511] [2024-12-02 07:32:06,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436676511] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:06,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:06,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:32:06,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990498617] [2024-12-02 07:32:06,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:06,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:32:06,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:32:06,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:32:06,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:32:06,550 INFO L87 Difference]: Start difference. First operand 258 states and 372 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:06,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:06,881 INFO L93 Difference]: Finished difference Result 595 states and 853 transitions. [2024-12-02 07:32:06,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:32:06,882 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 133 [2024-12-02 07:32:06,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:06,884 INFO L225 Difference]: With dead ends: 595 [2024-12-02 07:32:06,884 INFO L226 Difference]: Without dead ends: 340 [2024-12-02 07:32:06,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 07:32:06,885 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 132 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:06,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 521 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:32:06,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-12-02 07:32:06,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 337. [2024-12-02 07:32:06,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 295 states have (on average 1.3966101694915254) internal successors, (412), 297 states have internal predecessors, (412), 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 07:32:06,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 480 transitions. [2024-12-02 07:32:06,907 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 480 transitions. Word has length 133 [2024-12-02 07:32:06,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:06,907 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 480 transitions. [2024-12-02 07:32:06,907 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:06,907 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 480 transitions. [2024-12-02 07:32:06,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 07:32:06,908 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:06,908 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:06,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:32:06,908 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:06,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:06,909 INFO L85 PathProgramCache]: Analyzing trace with hash -665800542, now seen corresponding path program 1 times [2024-12-02 07:32:06,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:32:06,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983449715] [2024-12-02 07:32:06,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:06,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:32:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:07,013 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:32:07,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:32:07,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983449715] [2024-12-02 07:32:07,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983449715] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:07,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:07,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:32:07,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53717920] [2024-12-02 07:32:07,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:07,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:32:07,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:32:07,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:32:07,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:32:07,015 INFO L87 Difference]: Start difference. First operand 337 states and 480 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:07,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:07,286 INFO L93 Difference]: Finished difference Result 671 states and 952 transitions. [2024-12-02 07:32:07,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:32:07,287 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 134 [2024-12-02 07:32:07,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:07,289 INFO L225 Difference]: With dead ends: 671 [2024-12-02 07:32:07,289 INFO L226 Difference]: Without dead ends: 337 [2024-12-02 07:32:07,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 07:32:07,290 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 121 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:07,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 563 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:32:07,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-12-02 07:32:07,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 334. [2024-12-02 07:32:07,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 291 states have (on average 1.388316151202749) internal successors, (404), 293 states have internal predecessors, (404), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:32:07,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 472 transitions. [2024-12-02 07:32:07,314 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 472 transitions. Word has length 134 [2024-12-02 07:32:07,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:07,315 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 472 transitions. [2024-12-02 07:32:07,315 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:07,315 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 472 transitions. [2024-12-02 07:32:07,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 07:32:07,315 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:07,315 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:07,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:32:07,316 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:07,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:07,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1251066523, now seen corresponding path program 1 times [2024-12-02 07:32:07,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:32:07,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358794675] [2024-12-02 07:32:07,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:07,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:32:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:07,500 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:32:07,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:32:07,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358794675] [2024-12-02 07:32:07,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358794675] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:07,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:07,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:32:07,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203480928] [2024-12-02 07:32:07,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:07,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:32:07,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:32:07,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:32:07,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:32:07,502 INFO L87 Difference]: Start difference. First operand 334 states and 472 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:07,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:07,754 INFO L93 Difference]: Finished difference Result 585 states and 812 transitions. [2024-12-02 07:32:07,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:32:07,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 134 [2024-12-02 07:32:07,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:07,757 INFO L225 Difference]: With dead ends: 585 [2024-12-02 07:32:07,757 INFO L226 Difference]: Without dead ends: 583 [2024-12-02 07:32:07,758 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:32:07,758 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 102 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:07,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 1069 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:32:07,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-12-02 07:32:07,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 392. [2024-12-02 07:32:07,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 349 states have (on average 1.3581661891117478) internal successors, (474), 351 states have internal predecessors, (474), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:32:07,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 542 transitions. [2024-12-02 07:32:07,802 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 542 transitions. Word has length 134 [2024-12-02 07:32:07,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:07,802 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 542 transitions. [2024-12-02 07:32:07,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:07,803 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 542 transitions. [2024-12-02 07:32:07,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:32:07,804 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:07,804 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:07,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:32:07,804 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:07,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:07,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1807259723, now seen corresponding path program 1 times [2024-12-02 07:32:07,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:32:07,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661640787] [2024-12-02 07:32:07,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:07,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:32:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:08,497 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:32:08,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:32:08,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661640787] [2024-12-02 07:32:08,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661640787] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:08,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:08,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:32:08,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890530561] [2024-12-02 07:32:08,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:08,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:32:08,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:32:08,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:32:08,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:32:08,499 INFO L87 Difference]: Start difference. First operand 392 states and 542 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:09,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:09,174 INFO L93 Difference]: Finished difference Result 909 states and 1263 transitions. [2024-12-02 07:32:09,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:32:09,174 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 135 [2024-12-02 07:32:09,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:09,176 INFO L225 Difference]: With dead ends: 909 [2024-12-02 07:32:09,176 INFO L226 Difference]: Without dead ends: 520 [2024-12-02 07:32:09,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:32:09,177 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 324 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:09,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 1102 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:32:09,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-12-02 07:32:09,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 433. [2024-12-02 07:32:09,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 390 states have (on average 1.3692307692307693) internal successors, (534), 392 states have internal predecessors, (534), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:32:09,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 602 transitions. [2024-12-02 07:32:09,202 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 602 transitions. Word has length 135 [2024-12-02 07:32:09,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:09,203 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 602 transitions. [2024-12-02 07:32:09,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:09,203 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 602 transitions. [2024-12-02 07:32:09,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 07:32:09,204 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:09,204 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:09,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 07:32:09,204 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:09,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:09,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1348992656, now seen corresponding path program 1 times [2024-12-02 07:32:09,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:32:09,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508073891] [2024-12-02 07:32:09,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:09,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:32:09,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:09,797 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:32:09,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:32:09,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508073891] [2024-12-02 07:32:09,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508073891] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:09,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:09,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 07:32:09,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960746189] [2024-12-02 07:32:09,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:09,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 07:32:09,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:32:09,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 07:32:09,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:32:09,798 INFO L87 Difference]: Start difference. First operand 433 states and 602 transitions. Second operand has 11 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:32:10,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:10,422 INFO L93 Difference]: Finished difference Result 936 states and 1297 transitions. [2024-12-02 07:32:10,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:32:10,423 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 136 [2024-12-02 07:32:10,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:10,425 INFO L225 Difference]: With dead ends: 936 [2024-12-02 07:32:10,425 INFO L226 Difference]: Without dead ends: 506 [2024-12-02 07:32:10,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:32:10,427 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 261 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:10,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 1263 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:32:10,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-12-02 07:32:10,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 446. [2024-12-02 07:32:10,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 403 states have (on average 1.3598014888337469) internal successors, (548), 405 states have internal predecessors, (548), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:32:10,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 616 transitions. [2024-12-02 07:32:10,467 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 616 transitions. Word has length 136 [2024-12-02 07:32:10,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:10,467 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 616 transitions. [2024-12-02 07:32:10,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:32:10,467 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 616 transitions. [2024-12-02 07:32:10,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 07:32:10,469 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:10,469 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:10,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 07:32:10,469 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:10,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:10,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1302307900, now seen corresponding path program 1 times [2024-12-02 07:32:10,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:32:10,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509865044] [2024-12-02 07:32:10,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:10,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:32:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:10,598 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:32:10,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:32:10,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509865044] [2024-12-02 07:32:10,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509865044] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:10,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:10,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:32:10,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436867705] [2024-12-02 07:32:10,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:10,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:32:10,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:32:10,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:32:10,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:32:10,600 INFO L87 Difference]: Start difference. First operand 446 states and 616 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:10,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:10,839 INFO L93 Difference]: Finished difference Result 1161 states and 1607 transitions. [2024-12-02 07:32:10,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:32:10,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 136 [2024-12-02 07:32:10,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:10,841 INFO L225 Difference]: With dead ends: 1161 [2024-12-02 07:32:10,841 INFO L226 Difference]: Without dead ends: 718 [2024-12-02 07:32:10,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 07:32:10,842 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 112 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:10,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 434 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:32:10,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2024-12-02 07:32:10,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 504. [2024-12-02 07:32:10,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 461 states have (on average 1.3622559652928417) internal successors, (628), 463 states have internal predecessors, (628), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:32:10,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 696 transitions. [2024-12-02 07:32:10,876 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 696 transitions. Word has length 136 [2024-12-02 07:32:10,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:10,876 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 696 transitions. [2024-12-02 07:32:10,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:10,876 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 696 transitions. [2024-12-02 07:32:10,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 07:32:10,877 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:10,877 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:10,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 07:32:10,878 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:10,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:10,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1343544007, now seen corresponding path program 1 times [2024-12-02 07:32:10,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:32:10,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616178616] [2024-12-02 07:32:10,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:10,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:32:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:10,982 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:32:10,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:32:10,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616178616] [2024-12-02 07:32:10,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616178616] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:10,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:10,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:32:10,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279822209] [2024-12-02 07:32:10,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:10,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:32:10,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:32:10,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:32:10,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:32:10,983 INFO L87 Difference]: Start difference. First operand 504 states and 696 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:11,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:11,246 INFO L93 Difference]: Finished difference Result 1137 states and 1567 transitions. [2024-12-02 07:32:11,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:32:11,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 136 [2024-12-02 07:32:11,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:11,249 INFO L225 Difference]: With dead ends: 1137 [2024-12-02 07:32:11,249 INFO L226 Difference]: Without dead ends: 636 [2024-12-02 07:32:11,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 07:32:11,250 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 111 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:11,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 739 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:32:11,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-12-02 07:32:11,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 340. [2024-12-02 07:32:11,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 319 states have (on average 1.3605015673981191) internal successors, (434), 319 states have internal predecessors, (434), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:32:11,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 466 transitions. [2024-12-02 07:32:11,276 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 466 transitions. Word has length 136 [2024-12-02 07:32:11,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:11,276 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 466 transitions. [2024-12-02 07:32:11,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:11,277 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 466 transitions. [2024-12-02 07:32:11,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 07:32:11,278 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:11,278 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:11,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 07:32:11,278 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:11,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:11,278 INFO L85 PathProgramCache]: Analyzing trace with hash 55100714, now seen corresponding path program 1 times [2024-12-02 07:32:11,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:32:11,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889143710] [2024-12-02 07:32:11,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:11,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:32:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:11,589 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:32:11,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:32:11,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889143710] [2024-12-02 07:32:11,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889143710] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:11,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:11,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:32:11,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829492126] [2024-12-02 07:32:11,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:11,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:32:11,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:32:11,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:32:11,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:32:11,590 INFO L87 Difference]: Start difference. First operand 340 states and 466 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:11,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:11,793 INFO L93 Difference]: Finished difference Result 462 states and 617 transitions. [2024-12-02 07:32:11,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:32:11,793 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-12-02 07:32:11,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:11,796 INFO L225 Difference]: With dead ends: 462 [2024-12-02 07:32:11,796 INFO L226 Difference]: Without dead ends: 460 [2024-12-02 07:32:11,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:32:11,797 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 92 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:11,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1339 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:32:11,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-12-02 07:32:11,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 398. [2024-12-02 07:32:11,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 377 states have (on average 1.3262599469496021) internal successors, (500), 377 states have internal predecessors, (500), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:32:11,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 532 transitions. [2024-12-02 07:32:11,823 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 532 transitions. Word has length 137 [2024-12-02 07:32:11,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:11,823 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 532 transitions. [2024-12-02 07:32:11,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:11,823 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 532 transitions. [2024-12-02 07:32:11,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 07:32:11,825 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:11,825 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:11,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 07:32:11,825 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:11,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:11,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1502374088, now seen corresponding path program 1 times [2024-12-02 07:32:11,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:32:11,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852521567] [2024-12-02 07:32:11,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:11,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:32:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 07:32:11,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [629796349] [2024-12-02 07:32:11,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:11,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:32:11,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:32:11,879 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:32:11,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:32:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:32:12,356 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:32:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:32:12,607 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:32:12,607 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:32:12,608 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 07:32:12,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:32:12,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 07:32:12,811 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:32:12,875 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:32:12,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:32:12 BoogieIcfgContainer [2024-12-02 07:32:12,878 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:32:12,879 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:32:12,879 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:32:12,879 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:32:12,879 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:31:50" (3/4) ... [2024-12-02 07:32:12,881 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 07:32:12,882 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:32:12,882 INFO L158 Benchmark]: Toolchain (without parser) took 23736.88ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 116.6MB in the beginning and 407.4MB in the end (delta: -290.9MB). Peak memory consumption was 111.8MB. Max. memory is 16.1GB. [2024-12-02 07:32:12,882 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:32:12,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.87ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 101.0MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:32:12,883 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.37ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 97.2MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:32:12,883 INFO L158 Benchmark]: Boogie Preprocessor took 63.04ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 92.5MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:32:12,883 INFO L158 Benchmark]: RCFGBuilder took 621.49ms. Allocated memory is still 142.6MB. Free memory was 92.3MB in the beginning and 57.2MB in the end (delta: 35.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-02 07:32:12,883 INFO L158 Benchmark]: TraceAbstraction took 22729.74ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 56.7MB in the beginning and 407.5MB in the end (delta: -350.8MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. [2024-12-02 07:32:12,884 INFO L158 Benchmark]: Witness Printer took 2.85ms. Allocated memory is still 545.3MB. Free memory was 407.5MB in the beginning and 407.4MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:32:12,885 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.87ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 101.0MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.37ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 97.2MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.04ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 92.5MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 621.49ms. Allocated memory is still 142.6MB. Free memory was 92.3MB in the beginning and 57.2MB in the end (delta: 35.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 22729.74ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 56.7MB in the beginning and 407.5MB in the end (delta: -350.8MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. * Witness Printer took 2.85ms. Allocated memory is still 545.3MB. Free memory was 407.5MB in the beginning and 407.4MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 shiftLeft at line 89, overapproximation of shiftLeft at line 47, overapproximation of someBinaryFLOATComparisonOperation at line 63, overapproximation of someBinaryFLOATComparisonOperation at line 65, overapproximation of someBinaryFLOATComparisonOperation at line 65, overapproximation of someBinaryFLOATComparisonOperation at line 61, overapproximation of someBinaryFLOATComparisonOperation at line 63, overapproximation of someBinaryFLOATComparisonOperation at line 61. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] float float_Array_0[3] = { 1.75, 7.8, 1.1 }; [L22-L24] float float_Array_0[3] = { 1.75, 7.8, 1.1 }; [L22-L24] float float_Array_0[3] = { 1.75, 7.8, 1.1 }; [L22-L24] float float_Array_0[3] = { 1.75, 7.8, 1.1 }; [L25-L27] signed long int signed_long_int_Array_0[3] = { 1230482582, 32, 5 }; [L25-L27] signed long int signed_long_int_Array_0[3] = { 1230482582, 32, 5 }; [L25-L27] signed long int signed_long_int_Array_0[3] = { 1230482582, 32, 5 }; [L25-L27] signed long int signed_long_int_Array_0[3] = { 1230482582, 32, 5 }; [L28-L30] signed short int signed_short_int_Array_0[5] = { 32, 10, 1000, 0, -5 }; [L28-L30] signed short int signed_short_int_Array_0[5] = { 32, 10, 1000, 0, -5 }; [L28-L30] signed short int signed_short_int_Array_0[5] = { 32, 10, 1000, 0, -5 }; [L28-L30] signed short int signed_short_int_Array_0[5] = { 32, 10, 1000, 0, -5 }; [L28-L30] signed short int signed_short_int_Array_0[5] = { 32, 10, 1000, 0, -5 }; [L28-L30] signed short int signed_short_int_Array_0[5] = { 32, 10, 1000, 0, -5 }; [L31-L33] unsigned char unsigned_char_Array_0[1] = { 64 }; [L31-L33] unsigned char unsigned_char_Array_0[1] = { 64 }; VAL [float_Array_0={4:0}, isInitial=0, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L93] isInitial = 1 [L94] FCALL initially() [L96] FCALL updateLastVariables() [L97] CALL updateVariables() [L60] float_Array_0[0] = __VERIFIER_nondet_float() [L61] EXPR float_Array_0[0] [L61] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L61] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F [L61] EXPR float_Array_0[0] [L61] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L61] EXPR (float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L61] EXPR (float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L61] CALL assume_abort_if_not((float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L61] RET assume_abort_if_not((float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L62] float_Array_0[1] = __VERIFIER_nondet_float() [L63] EXPR float_Array_0[1] [L63] EXPR float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L63] EXPR float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F [L63] EXPR float_Array_0[1] [L63] EXPR float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L63] EXPR (float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854776000e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L63] EXPR (float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854776000e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L63] CALL assume_abort_if_not((float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854776000e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L63] RET assume_abort_if_not((float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854776000e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L64] float_Array_0[2] = __VERIFIER_nondet_float() [L65] EXPR float_Array_0[2] [L65] EXPR float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L65] EXPR float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F [L65] EXPR float_Array_0[2] [L65] EXPR float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L65] EXPR (float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F) || (float_Array_0[2] <= 9223372.036854776000e+12F && float_Array_0[2] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L65] EXPR (float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F) || (float_Array_0[2] <= 9223372.036854776000e+12F && float_Array_0[2] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L65] CALL assume_abort_if_not((float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F) || (float_Array_0[2] <= 9223372.036854776000e+12F && float_Array_0[2] >= 1.0e-20F )) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L65] RET assume_abort_if_not((float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F) || (float_Array_0[2] <= 9223372.036854776000e+12F && float_Array_0[2] >= 1.0e-20F )) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L66] signed_long_int_Array_0[0] = __VERIFIER_nondet_long() [L67] EXPR signed_long_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L67] CALL assume_abort_if_not(signed_long_int_Array_0[0] >= 1073741823) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L67] RET assume_abort_if_not(signed_long_int_Array_0[0] >= 1073741823) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L68] EXPR signed_long_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L68] CALL assume_abort_if_not(signed_long_int_Array_0[0] <= 2147483647) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L68] RET assume_abort_if_not(signed_long_int_Array_0[0] <= 2147483647) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L69] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L70] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L70] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L70] RET assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L71] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L71] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L71] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L72] signed_short_int_Array_0[1] = __VERIFIER_nondet_short() [L73] EXPR signed_short_int_Array_0[1] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L73] CALL assume_abort_if_not(signed_short_int_Array_0[1] >= 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L73] RET assume_abort_if_not(signed_short_int_Array_0[1] >= 0) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L74] EXPR signed_short_int_Array_0[1] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L74] CALL assume_abort_if_not(signed_short_int_Array_0[1] <= 16383) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L74] RET assume_abort_if_not(signed_short_int_Array_0[1] <= 16383) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L75] signed_short_int_Array_0[2] = __VERIFIER_nondet_short() [L76] EXPR signed_short_int_Array_0[2] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L76] CALL assume_abort_if_not(signed_short_int_Array_0[2] >= 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L76] RET assume_abort_if_not(signed_short_int_Array_0[2] >= 0) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] EXPR signed_short_int_Array_0[2] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] CALL assume_abort_if_not(signed_short_int_Array_0[2] <= 16383) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] RET assume_abort_if_not(signed_short_int_Array_0[2] <= 16383) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L78] signed_short_int_Array_0[3] = __VERIFIER_nondet_short() [L79] EXPR signed_short_int_Array_0[3] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L79] CALL assume_abort_if_not(signed_short_int_Array_0[3] >= 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L79] RET assume_abort_if_not(signed_short_int_Array_0[3] >= 0) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] EXPR signed_short_int_Array_0[3] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] CALL assume_abort_if_not(signed_short_int_Array_0[3] <= 16383) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] RET assume_abort_if_not(signed_short_int_Array_0[3] <= 16383) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L81] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L82] EXPR unsigned_char_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] CALL assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR unsigned_char_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 255) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 255) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L84] EXPR unsigned_char_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L84] CALL assume_abort_if_not(unsigned_char_Array_0[0] != 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L84] RET assume_abort_if_not(unsigned_char_Array_0[0] != 0) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L97] RET updateVariables() [L98] CALL step() [L37] EXPR signed_short_int_Array_0[3] [L37] EXPR signed_short_int_Array_0[2] [L37] EXPR signed_short_int_Array_0[1] [L37] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L37] EXPR ((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]) [L37] EXPR signed_short_int_Array_0[1] [L37] EXPR ((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L37] signed_short_int_Array_0[4] = ((((((16) > (4)) ? (16) : (4))) + signed_short_int_Array_0[3]) - (signed_short_int_Array_0[2] + ((((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]))))) [L38] EXPR signed_short_int_Array_0[3] [L38] EXPR signed_short_int_Array_0[4] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L38] COND FALSE !(signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) [L45] EXPR signed_short_int_Array_0[1] [L45] signed_long_int_Array_0[2] = signed_short_int_Array_0[1] [L47] EXPR signed_long_int_Array_0[2] [L47] EXPR signed_short_int_Array_0[1] [L47] EXPR signed_short_int_Array_0[3] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L47] EXPR signed_short_int_Array_0[1] << signed_short_int_Array_0[3] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L47] signed long int stepLocal_1 = signed_long_int_Array_0[2] + (signed_short_int_Array_0[1] << signed_short_int_Array_0[3]); [L48] EXPR signed_short_int_Array_0[3] [L48] EXPR signed_long_int_Array_0[0] [L48] EXPR signed_short_int_Array_0[0] [L48] signed long int stepLocal_0 = signed_short_int_Array_0[3] - (signed_long_int_Array_0[0] - signed_short_int_Array_0[0]); [L49] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L49] COND TRUE stepLocal_1 != signed_short_int_Array_0[0] [L50] EXPR signed_short_int_Array_0[2] [L50] EXPR unsigned_char_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L50] COND FALSE !((signed_short_int_Array_0[2] / unsigned_char_Array_0[0]) < stepLocal_0) [L53] EXPR signed_short_int_Array_0[1] [L53] signed_long_int_Array_0[1] = signed_short_int_Array_0[1] [L98] RET step() [L99] CALL, EXPR property() [L89] EXPR signed_short_int_Array_0[4] [L89] EXPR signed_short_int_Array_0[3] [L89] EXPR signed_short_int_Array_0[2] [L89] EXPR signed_short_int_Array_0[1] [L89] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR ((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]) [L89] EXPR signed_short_int_Array_0[1] [L89] EXPR ((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR (signed_short_int_Array_0[4] == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + signed_short_int_Array_0[3]) - (signed_short_int_Array_0[2] + ((((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]))))))) && ((signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1]))) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR (signed_short_int_Array_0[4] == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + signed_short_int_Array_0[3]) - (signed_short_int_Array_0[2] + ((((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]))))))) && ((signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1]))) [L89] EXPR signed_short_int_Array_0[3] [L89] EXPR signed_short_int_Array_0[4] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR (signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1])) [L89] EXPR signed_long_int_Array_0[2] [L89] EXPR signed_short_int_Array_0[1] [L89] EXPR (signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1])) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR (signed_short_int_Array_0[4] == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + signed_short_int_Array_0[3]) - (signed_short_int_Array_0[2] + ((((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]))))))) && ((signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1]))) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR ((signed_short_int_Array_0[4] == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + signed_short_int_Array_0[3]) - (signed_short_int_Array_0[2] + ((((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]))))))) && ((signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1])))) && (((signed_long_int_Array_0[2] + (signed_short_int_Array_0[1] << signed_short_int_Array_0[3])) != signed_short_int_Array_0[0]) ? (((signed_short_int_Array_0[2] / unsigned_char_Array_0[0]) < (signed_short_int_Array_0[3] - (signed_long_int_Array_0[0] - signed_short_int_Array_0[0]))) ? (signed_long_int_Array_0[1] == ((signed long int) ((((-256) < (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3])))))))) ? (-256) : (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))))))))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[1]))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[3]))) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR ((signed_short_int_Array_0[4] == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + signed_short_int_Array_0[3]) - (signed_short_int_Array_0[2] + ((((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]))))))) && ((signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1])))) && (((signed_long_int_Array_0[2] + (signed_short_int_Array_0[1] << signed_short_int_Array_0[3])) != signed_short_int_Array_0[0]) ? (((signed_short_int_Array_0[2] / unsigned_char_Array_0[0]) < (signed_short_int_Array_0[3] - (signed_long_int_Array_0[0] - signed_short_int_Array_0[0]))) ? (signed_long_int_Array_0[1] == ((signed long int) ((((-256) < (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3])))))))) ? (-256) : (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))))))))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[1]))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[3]))) [L89] EXPR signed_long_int_Array_0[2] [L89] EXPR signed_short_int_Array_0[1] [L89] EXPR signed_short_int_Array_0[3] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR signed_short_int_Array_0[1] << signed_short_int_Array_0[3] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR ((signed_long_int_Array_0[2] + (signed_short_int_Array_0[1] << signed_short_int_Array_0[3])) != signed_short_int_Array_0[0]) ? (((signed_short_int_Array_0[2] / unsigned_char_Array_0[0]) < (signed_short_int_Array_0[3] - (signed_long_int_Array_0[0] - signed_short_int_Array_0[0]))) ? (signed_long_int_Array_0[1] == ((signed long int) ((((-256) < (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3])))))))) ? (-256) : (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))))))))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[1]))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[3])) [L89] EXPR signed_long_int_Array_0[1] [L89] EXPR signed_short_int_Array_0[3] [L89] EXPR ((signed_long_int_Array_0[2] + (signed_short_int_Array_0[1] << signed_short_int_Array_0[3])) != signed_short_int_Array_0[0]) ? (((signed_short_int_Array_0[2] / unsigned_char_Array_0[0]) < (signed_short_int_Array_0[3] - (signed_long_int_Array_0[0] - signed_short_int_Array_0[0]))) ? (signed_long_int_Array_0[1] == ((signed long int) ((((-256) < (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3])))))))) ? (-256) : (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))))))))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[1]))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[3])) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR ((signed_short_int_Array_0[4] == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + signed_short_int_Array_0[3]) - (signed_short_int_Array_0[2] + ((((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]))))))) && ((signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1])))) && (((signed_long_int_Array_0[2] + (signed_short_int_Array_0[1] << signed_short_int_Array_0[3])) != signed_short_int_Array_0[0]) ? (((signed_short_int_Array_0[2] / unsigned_char_Array_0[0]) < (signed_short_int_Array_0[3] - (signed_long_int_Array_0[0] - signed_short_int_Array_0[0]))) ? (signed_long_int_Array_0[1] == ((signed long int) ((((-256) < (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3])))))))) ? (-256) : (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))))))))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[1]))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[3]))) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89-L90] return ((signed_short_int_Array_0[4] == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + signed_short_int_Array_0[3]) - (signed_short_int_Array_0[2] + ((((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]))))))) && ((signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1])))) && (((signed_long_int_Array_0[2] + (signed_short_int_Array_0[1] << signed_short_int_Array_0[3])) != signed_short_int_Array_0[0]) ? (((signed_short_int_Array_0[2] / unsigned_char_Array_0[0]) < (signed_short_int_Array_0[3] - (signed_long_int_Array_0[0] - signed_short_int_Array_0[0]))) ? (signed_long_int_Array_0[1] == ((signed long int) ((((-256) < (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3])))))))) ? (-256) : (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))))))))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[1]))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[3]))) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L19] reach_error() VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 120 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.6s, OverallIterations: 17, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2438 SdHoareTripleChecker+Valid, 6.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2431 mSDsluCounter, 15724 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12752 mSDsCounter, 120 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8629 IncrementalHoareTripleChecker+Invalid, 8749 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 120 mSolverCounterUnsat, 2972 mSDtfsCounter, 8629 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 350 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=504occurred in iteration=14, InterpolantAutomatonStates: 128, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 16 MinimizatonAttempts, 1456 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 2513 NumberOfCodeBlocks, 2513 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 2222 ConstructedInterpolants, 0 QuantifiedInterpolants, 8215 SizeOfPredicates, 0 NumberOfNonLiveVariables, 448 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 17 InterpolantComputations, 16 PerfectInterpolantSequences, 8130/8160 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 07:32:12,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/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_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/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_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/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_f08d05e7-37b2-4bf4-8931-77ff54961dfc/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 d2a0584d4779790e33dcddf636884f56e9964183aa5c7648270a93d40ce062b0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:32:14,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:32:14,899 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 07:32:14,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:32:14,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:32:14,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:32:14,928 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:32:14,928 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:32:14,929 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:32:14,929 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:32:14,929 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:32:14,929 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:32:14,929 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:32:14,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:32:14,930 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:32:14,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:32:14,930 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:32:14,930 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:32:14,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:32:14,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:32:14,930 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:32:14,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:32:14,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:32:14,930 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 07:32:14,931 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 07:32:14,931 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 07:32:14,931 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:32:14,931 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:32:14,931 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:32:14,931 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:32:14,931 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:32:14,931 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:32:14,931 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:32:14,931 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:32:14,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:32:14,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:32:14,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:32:14,932 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:32:14,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:32:14,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:32:14,932 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:32:14,932 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:32:14,932 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:32:14,932 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:32:14,932 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 07:32:14,932 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 07:32:14,932 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:32:14,932 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:32:14,932 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:32:14,932 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:32:14,933 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_f08d05e7-37b2-4bf4-8931-77ff54961dfc/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 -> d2a0584d4779790e33dcddf636884f56e9964183aa5c7648270a93d40ce062b0 [2024-12-02 07:32:15,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:32:15,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:32:15,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:32:15,177 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:32:15,177 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:32:15,178 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i [2024-12-02 07:32:17,855 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/data/a21c67a64/c5dc9d33a783406bb20ab990f526d593/FLAG920fdd33b [2024-12-02 07:32:18,033 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:32:18,034 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i [2024-12-02 07:32:18,041 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/data/a21c67a64/c5dc9d33a783406bb20ab990f526d593/FLAG920fdd33b [2024-12-02 07:32:18,052 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/data/a21c67a64/c5dc9d33a783406bb20ab990f526d593 [2024-12-02 07:32:18,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:32:18,055 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:32:18,056 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:32:18,056 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:32:18,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:32:18,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:32:18" (1/1) ... [2024-12-02 07:32:18,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2585f089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:18, skipping insertion in model container [2024-12-02 07:32:18,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:32:18" (1/1) ... [2024-12-02 07:32:18,078 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:32:18,191 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_f08d05e7-37b2-4bf4-8931-77ff54961dfc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i[916,929] [2024-12-02 07:32:18,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:32:18,266 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:32:18,277 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_f08d05e7-37b2-4bf4-8931-77ff54961dfc/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i[916,929] [2024-12-02 07:32:18,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:32:18,342 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:32:18,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:18 WrapperNode [2024-12-02 07:32:18,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:32:18,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:32:18,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:32:18,344 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:32:18,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:18" (1/1) ... [2024-12-02 07:32:18,366 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:18" (1/1) ... [2024-12-02 07:32:18,393 INFO L138 Inliner]: procedures = 36, calls = 191, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 585 [2024-12-02 07:32:18,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:32:18,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:32:18,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:32:18,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:32:18,400 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:18" (1/1) ... [2024-12-02 07:32:18,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:18" (1/1) ... [2024-12-02 07:32:18,405 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:18" (1/1) ... [2024-12-02 07:32:18,419 INFO L175 MemorySlicer]: Split 160 memory accesses to 5 slices as follows [2, 32, 22, 97, 7]. 61 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 3, 3, 5, 1]. The 16 writes are split as follows [0, 3, 7, 5, 1]. [2024-12-02 07:32:18,420 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:18" (1/1) ... [2024-12-02 07:32:18,420 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:18" (1/1) ... [2024-12-02 07:32:18,445 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:18" (1/1) ... [2024-12-02 07:32:18,447 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:18" (1/1) ... [2024-12-02 07:32:18,451 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:18" (1/1) ... [2024-12-02 07:32:18,455 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:18" (1/1) ... [2024-12-02 07:32:18,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:18" (1/1) ... [2024-12-02 07:32:18,463 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:32:18,463 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:32:18,464 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:32:18,464 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:32:18,465 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:18" (1/1) ... [2024-12-02 07:32:18,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:32:18,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:32:18,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:32:18,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:32:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:32:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 07:32:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 07:32:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-12-02 07:32:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-12-02 07:32:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-12-02 07:32:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-12-02 07:32:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-12-02 07:32:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-12-02 07:32:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-12-02 07:32:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-12-02 07:32:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 07:32:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 07:32:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 07:32:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-12-02 07:32:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-12-02 07:32:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-12-02 07:32:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-12-02 07:32:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-12-02 07:32:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-12-02 07:32:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-12-02 07:32:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-02 07:32:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-02 07:32:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-12-02 07:32:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-12-02 07:32:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-12-02 07:32:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 07:32:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 07:32:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-12-02 07:32:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-12-02 07:32:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-12-02 07:32:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-12-02 07:32:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-12-02 07:32:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-12-02 07:32:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-12-02 07:32:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-12-02 07:32:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-12-02 07:32:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-12-02 07:32:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-12-02 07:32:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-12-02 07:32:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-12-02 07:32:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-12-02 07:32:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-12-02 07:32:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-12-02 07:32:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-12-02 07:32:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-12-02 07:32:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:32:18,523 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:32:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:32:18,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:32:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 07:32:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 07:32:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-12-02 07:32:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-12-02 07:32:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-12-02 07:32:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-12-02 07:32:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-12-02 07:32:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-12-02 07:32:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-12-02 07:32:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-12-02 07:32:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 07:32:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 07:32:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-12-02 07:32:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-12-02 07:32:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-12-02 07:32:18,682 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:32:18,683 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:32:20,103 INFO L? ?]: Removed 188 outVars from TransFormulas that were not future-live. [2024-12-02 07:32:20,103 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:32:20,112 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:32:20,112 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:32:20,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:32:20 BoogieIcfgContainer [2024-12-02 07:32:20,113 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:32:20,115 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:32:20,115 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:32:20,118 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:32:20,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:32:18" (1/3) ... [2024-12-02 07:32:20,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49cd2339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:32:20, skipping insertion in model container [2024-12-02 07:32:20,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:18" (2/3) ... [2024-12-02 07:32:20,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49cd2339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:32:20, skipping insertion in model container [2024-12-02 07:32:20,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:32:20" (3/3) ... [2024-12-02 07:32:20,120 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-39.i [2024-12-02 07:32:20,131 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:32:20,132 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-39.i that has 2 procedures, 114 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:32:20,172 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:32:20,181 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;@7d20aca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:32:20,181 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:32:20,184 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 95 states have (on average 1.4421052631578948) internal successors, (137), 96 states have internal predecessors, (137), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:32:20,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 07:32:20,192 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:20,193 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:20,194 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:20,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:20,198 INFO L85 PathProgramCache]: Analyzing trace with hash -607755742, now seen corresponding path program 1 times [2024-12-02 07:32:20,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:32:20,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550377940] [2024-12-02 07:32:20,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:20,207 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 07:32:20,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:32:20,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:20,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:20,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:32:20,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:32:20,560 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2024-12-02 07:32:20,560 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:32:20,561 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:32:20,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550377940] [2024-12-02 07:32:20,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550377940] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:32:20,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:32:20,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:32:20,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590370686] [2024-12-02 07:32:20,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:20,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:32:20,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:32:20,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:32:20,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:32:20,583 INFO L87 Difference]: Start difference. First operand has 114 states, 95 states have (on average 1.4421052631578948) internal successors, (137), 96 states have internal predecessors, (137), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:32:20,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:20,609 INFO L93 Difference]: Finished difference Result 221 states and 348 transitions. [2024-12-02 07:32:20,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:32:20,611 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 126 [2024-12-02 07:32:20,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:20,617 INFO L225 Difference]: With dead ends: 221 [2024-12-02 07:32:20,617 INFO L226 Difference]: Without dead ends: 110 [2024-12-02 07:32:20,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 125 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 07:32:20,622 INFO L435 NwaCegarLoop]: 162 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, 162 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 07:32:20,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:32:20,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-12-02 07:32:20,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-12-02 07:32:20,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 92 states have (on average 1.4130434782608696) internal successors, (130), 92 states have internal predecessors, (130), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:32:20,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 162 transitions. [2024-12-02 07:32:20,656 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 162 transitions. Word has length 126 [2024-12-02 07:32:20,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:20,656 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 162 transitions. [2024-12-02 07:32:20,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:32:20,657 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 162 transitions. [2024-12-02 07:32:20,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 07:32:20,660 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:20,660 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:20,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:20,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:20,861 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:20,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:20,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1007872186, now seen corresponding path program 1 times [2024-12-02 07:32:20,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:32:20,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248480671] [2024-12-02 07:32:20,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:20,862 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 07:32:20,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:32:20,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:20,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:21,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-02 07:32:21,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:32:21,327 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 07:32:21,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 07:32:22,790 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:32:22,791 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 60 treesize of output 35 [2024-12-02 07:32:23,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 35 [2024-12-02 07:32:25,292 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:32:25,293 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 88 treesize of output 56 [2024-12-02 07:32:25,353 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 21 treesize of output 17 [2024-12-02 07:32:25,539 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 47 treesize of output 35 [2024-12-02 07:32:26,005 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:32:26,006 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 91 treesize of output 39 [2024-12-02 07:32:26,202 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 344 proven. 78 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-02 07:32:26,202 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:32:26,912 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:32:26,912 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:32:26,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248480671] [2024-12-02 07:32:26,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248480671] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:32:26,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:32:26,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [34] total 40 [2024-12-02 07:32:26,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543544663] [2024-12-02 07:32:26,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:26,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:32:26,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:32:26,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:32:26,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=1280, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 07:32:26,915 INFO L87 Difference]: Start difference. First operand 110 states and 162 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:28,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:28,539 INFO L93 Difference]: Finished difference Result 442 states and 651 transitions. [2024-12-02 07:32:28,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:32:28,540 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 126 [2024-12-02 07:32:28,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:28,542 INFO L225 Difference]: With dead ends: 442 [2024-12-02 07:32:28,542 INFO L226 Difference]: Without dead ends: 335 [2024-12-02 07:32:28,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 212 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=312, Invalid=1494, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 07:32:28,543 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 958 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:28,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 576 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 07:32:28,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-12-02 07:32:28,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 194. [2024-12-02 07:32:28,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 170 states have (on average 1.4470588235294117) internal successors, (246), 171 states have internal predecessors, (246), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 07:32:28,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 288 transitions. [2024-12-02 07:32:28,567 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 288 transitions. Word has length 126 [2024-12-02 07:32:28,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:28,568 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 288 transitions. [2024-12-02 07:32:28,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:28,568 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 288 transitions. [2024-12-02 07:32:28,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 07:32:28,570 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:28,570 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:28,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:28,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:28,771 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:28,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:28,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1687930556, now seen corresponding path program 1 times [2024-12-02 07:32:28,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:32:28,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464980460] [2024-12-02 07:32:28,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:28,772 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 07:32:28,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:32:28,774 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:28,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:29,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-12-02 07:32:29,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:32:29,194 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 07:32:29,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2024-12-02 07:32:29,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 47 [2024-12-02 07:32:30,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 60 [2024-12-02 07:32:33,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 106 [2024-12-02 07:32:33,547 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 21 treesize of output 17 [2024-12-02 07:32:33,895 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 47 treesize of output 35 [2024-12-02 07:32:35,071 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:32:35,071 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 239 treesize of output 103 [2024-12-02 07:32:35,684 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 351 proven. 72 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 07:32:35,684 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:32:38,076 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:32:38,076 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:32:38,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464980460] [2024-12-02 07:32:38,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464980460] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:32:38,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:32:38,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [44] total 52 [2024-12-02 07:32:38,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524163895] [2024-12-02 07:32:38,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:38,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 07:32:38,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:32:38,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 07:32:38,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=2270, Unknown=0, NotChecked=0, Total=2652 [2024-12-02 07:32:38,079 INFO L87 Difference]: Start difference. First operand 194 states and 288 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:44,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:44,093 INFO L93 Difference]: Finished difference Result 550 states and 815 transitions. [2024-12-02 07:32:44,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 07:32:44,094 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 126 [2024-12-02 07:32:44,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:44,096 INFO L225 Difference]: With dead ends: 550 [2024-12-02 07:32:44,097 INFO L226 Difference]: Without dead ends: 359 [2024-12-02 07:32:44,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 200 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 949 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=447, Invalid=2975, Unknown=0, NotChecked=0, Total=3422 [2024-12-02 07:32:44,098 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 434 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:44,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 1357 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 07:32:44,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-12-02 07:32:44,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 196. [2024-12-02 07:32:44,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 172 states have (on average 1.441860465116279) internal successors, (248), 173 states have internal predecessors, (248), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 07:32:44,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 290 transitions. [2024-12-02 07:32:44,111 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 290 transitions. Word has length 126 [2024-12-02 07:32:44,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:44,111 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 290 transitions. [2024-12-02 07:32:44,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:44,111 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 290 transitions. [2024-12-02 07:32:44,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 07:32:44,112 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:44,112 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:44,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:44,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:44,313 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:44,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:44,313 INFO L85 PathProgramCache]: Analyzing trace with hash 2007231432, now seen corresponding path program 1 times [2024-12-02 07:32:44,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:32:44,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696465448] [2024-12-02 07:32:44,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:44,314 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 07:32:44,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:32:44,316 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:44,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:44,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-12-02 07:32:44,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:32:44,661 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 07:32:44,896 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 46 treesize of output 22 [2024-12-02 07:32:45,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-12-02 07:32:45,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 55 [2024-12-02 07:32:47,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 71 [2024-12-02 07:32:48,542 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:32:48,543 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 122 treesize of output 56 [2024-12-02 07:32:48,886 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 358 proven. 66 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-12-02 07:32:48,886 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:32:50,210 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:32:50,210 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:32:50,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696465448] [2024-12-02 07:32:50,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696465448] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:32:50,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:32:50,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [36] total 42 [2024-12-02 07:32:50,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600697847] [2024-12-02 07:32:50,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:50,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:32:50,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:32:50,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:32:50,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=1435, Unknown=0, NotChecked=0, Total=1722 [2024-12-02 07:32:50,212 INFO L87 Difference]: Start difference. First operand 196 states and 290 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:52,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:52,662 INFO L93 Difference]: Finished difference Result 469 states and 695 transitions. [2024-12-02 07:32:52,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:32:52,663 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 126 [2024-12-02 07:32:52,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:52,665 INFO L225 Difference]: With dead ends: 469 [2024-12-02 07:32:52,665 INFO L226 Difference]: Without dead ends: 276 [2024-12-02 07:32:52,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=310, Invalid=1760, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 07:32:52,666 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 222 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:52,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1108 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 07:32:52,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-12-02 07:32:52,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 212. [2024-12-02 07:32:52,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 188 states have (on average 1.4574468085106382) internal successors, (274), 189 states have internal predecessors, (274), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 07:32:52,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 316 transitions. [2024-12-02 07:32:52,684 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 316 transitions. Word has length 126 [2024-12-02 07:32:52,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:52,685 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 316 transitions. [2024-12-02 07:32:52,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:52,685 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 316 transitions. [2024-12-02 07:32:52,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 07:32:52,686 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:52,686 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:52,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:52,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:52,887 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:52,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:52,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1327173062, now seen corresponding path program 1 times [2024-12-02 07:32:52,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:32:52,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915118194] [2024-12-02 07:32:52,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:52,888 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 07:32:52,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:32:52,889 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:52,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:53,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-12-02 07:32:53,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:32:53,225 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 07:32:53,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2024-12-02 07:32:53,871 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:32:53,872 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 65 treesize of output 51 [2024-12-02 07:32:54,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:32:54,171 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 80 treesize of output 54 [2024-12-02 07:32:54,898 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:32:54,898 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 78 treesize of output 52 [2024-12-02 07:32:54,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2024-12-02 07:32:55,039 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 47 treesize of output 35 [2024-12-02 07:32:55,354 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:32:55,354 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 114 treesize of output 50 [2024-12-02 07:32:55,497 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 267 proven. 84 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-12-02 07:32:55,498 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:32:56,050 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:32:56,050 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:32:56,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915118194] [2024-12-02 07:32:56,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915118194] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:32:56,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:32:56,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [26] total 32 [2024-12-02 07:32:56,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487606548] [2024-12-02 07:32:56,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:32:56,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:32:56,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:32:56,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:32:56,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=820, Unknown=0, NotChecked=0, Total=992 [2024-12-02 07:32:56,052 INFO L87 Difference]: Start difference. First operand 212 states and 316 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:58,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:32:58,180 INFO L93 Difference]: Finished difference Result 556 states and 816 transitions. [2024-12-02 07:32:58,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:32:58,181 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 126 [2024-12-02 07:32:58,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:32:58,183 INFO L225 Difference]: With dead ends: 556 [2024-12-02 07:32:58,183 INFO L226 Difference]: Without dead ends: 347 [2024-12-02 07:32:58,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=204, Invalid=986, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 07:32:58,185 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 417 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:32:58,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1088 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 07:32:58,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-12-02 07:32:58,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 140. [2024-12-02 07:32:58,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 121 states have (on average 1.4132231404958677) internal successors, (171), 121 states have internal predecessors, (171), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:32:58,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 203 transitions. [2024-12-02 07:32:58,194 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 203 transitions. Word has length 126 [2024-12-02 07:32:58,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:32:58,194 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 203 transitions. [2024-12-02 07:32:58,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:32:58,194 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 203 transitions. [2024-12-02 07:32:58,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 07:32:58,196 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:32:58,196 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:32:58,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:58,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:58,396 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:32:58,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:32:58,397 INFO L85 PathProgramCache]: Analyzing trace with hash -568707458, now seen corresponding path program 1 times [2024-12-02 07:32:58,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:32:58,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149917148] [2024-12-02 07:32:58,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:32:58,397 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 07:32:58,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:32:58,399 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:58,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:32:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:58,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 07:32:58,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:32:58,773 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 07:32:58,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2024-12-02 07:32:59,208 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:32:59,208 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 47 [2024-12-02 07:32:59,446 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:32:59,446 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 65 treesize of output 60 [2024-12-02 07:33:00,222 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:33:00,223 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 77 treesize of output 60 [2024-12-02 07:33:00,307 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:33:00,308 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 76 treesize of output 34 [2024-12-02 07:33:00,695 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 307 proven. 84 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-12-02 07:33:00,695 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:33:00,990 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:33:00,991 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:33:00,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149917148] [2024-12-02 07:33:00,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149917148] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:33:00,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:33:00,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [23] total 26 [2024-12-02 07:33:00,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378216343] [2024-12-02 07:33:00,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:33:00,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:33:00,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:33:00,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:33:00,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2024-12-02 07:33:00,992 INFO L87 Difference]: Start difference. First operand 140 states and 203 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:33:01,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:33:01,497 INFO L93 Difference]: Finished difference Result 360 states and 525 transitions. [2024-12-02 07:33:01,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:33:01,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 127 [2024-12-02 07:33:01,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:33:01,499 INFO L225 Difference]: With dead ends: 360 [2024-12-02 07:33:01,499 INFO L226 Difference]: Without dead ends: 223 [2024-12-02 07:33:01,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-12-02 07:33:01,500 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 118 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:33:01,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 425 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:33:01,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-12-02 07:33:01,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 159. [2024-12-02 07:33:01,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 140 states have (on average 1.4357142857142857) internal successors, (201), 140 states have internal predecessors, (201), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 07:33:01,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 233 transitions. [2024-12-02 07:33:01,504 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 233 transitions. Word has length 127 [2024-12-02 07:33:01,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:33:01,505 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 233 transitions. [2024-12-02 07:33:01,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:33:01,505 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 233 transitions. [2024-12-02 07:33:01,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 07:33:01,506 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:33:01,506 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:01,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:01,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:01,706 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:33:01,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:33:01,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1248765828, now seen corresponding path program 1 times [2024-12-02 07:33:01,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:33:01,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878546334] [2024-12-02 07:33:01,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:33:01,707 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 07:33:01,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:33:01,708 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:01,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:33:02,097 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-12-02 07:33:02,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:33:02,112 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 07:33:02,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2024-12-02 07:33:02,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2024-12-02 07:33:05,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 83 [2024-12-02 07:33:06,077 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:33:06,077 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 145 treesize of output 67 [2024-12-02 07:33:06,448 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 330 proven. 54 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-12-02 07:33:06,448 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:33:08,134 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:33:08,134 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:33:08,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878546334] [2024-12-02 07:33:08,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878546334] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:33:08,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:33:08,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [36] total 42 [2024-12-02 07:33:08,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749073228] [2024-12-02 07:33:08,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:33:08,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:33:08,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:33:08,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:33:08,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=1435, Unknown=0, NotChecked=0, Total=1722 [2024-12-02 07:33:08,136 INFO L87 Difference]: Start difference. First operand 159 states and 233 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:33:10,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:33:10,388 INFO L93 Difference]: Finished difference Result 401 states and 585 transitions. [2024-12-02 07:33:10,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:33:10,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 127 [2024-12-02 07:33:10,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:33:10,390 INFO L225 Difference]: With dead ends: 401 [2024-12-02 07:33:10,390 INFO L226 Difference]: Without dead ends: 245 [2024-12-02 07:33:10,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=310, Invalid=1760, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 07:33:10,392 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 117 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:33:10,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1216 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 07:33:10,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-12-02 07:33:10,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 238. [2024-12-02 07:33:10,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 210 states have (on average 1.438095238095238) internal successors, (302), 211 states have internal predecessors, (302), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 07:33:10,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 348 transitions. [2024-12-02 07:33:10,400 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 348 transitions. Word has length 127 [2024-12-02 07:33:10,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:33:10,400 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 348 transitions. [2024-12-02 07:33:10,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:33:10,401 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 348 transitions. [2024-12-02 07:33:10,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 07:33:10,402 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:33:10,402 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:10,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:10,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:10,602 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:33:10,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:33:10,603 INFO L85 PathProgramCache]: Analyzing trace with hash 2025133114, now seen corresponding path program 1 times [2024-12-02 07:33:10,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:33:10,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649492284] [2024-12-02 07:33:10,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:33:10,603 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 07:33:10,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:33:10,604 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:10,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:33:10,963 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-12-02 07:33:10,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:33:10,975 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 07:33:11,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2024-12-02 07:33:11,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 47 [2024-12-02 07:33:12,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 70 [2024-12-02 07:33:14,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 94 [2024-12-02 07:33:15,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:33:15,585 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 131 treesize of output 61 [2024-12-02 07:33:15,940 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 351 proven. 72 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 07:33:15,940 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:33:16,628 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:33:16,629 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:33:16,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649492284] [2024-12-02 07:33:16,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649492284] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:33:16,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:33:16,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [41] total 46 [2024-12-02 07:33:16,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514593202] [2024-12-02 07:33:16,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:33:16,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:33:16,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:33:16,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:33:16,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=1721, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 07:33:16,631 INFO L87 Difference]: Start difference. First operand 238 states and 348 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:33:17,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:33:17,513 INFO L93 Difference]: Finished difference Result 533 states and 779 transitions. [2024-12-02 07:33:17,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:33:17,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 127 [2024-12-02 07:33:17,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:33:17,515 INFO L225 Difference]: With dead ends: 533 [2024-12-02 07:33:17,516 INFO L226 Difference]: Without dead ends: 298 [2024-12-02 07:33:17,516 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=365, Invalid=1891, Unknown=0, NotChecked=0, Total=2256 [2024-12-02 07:33:17,517 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 109 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:33:17,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 863 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:33:17,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-12-02 07:33:17,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 236. [2024-12-02 07:33:17,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 208 states have (on average 1.4375) internal successors, (299), 209 states have internal predecessors, (299), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 07:33:17,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 345 transitions. [2024-12-02 07:33:17,529 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 345 transitions. Word has length 127 [2024-12-02 07:33:17,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:33:17,530 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 345 transitions. [2024-12-02 07:33:17,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:33:17,530 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 345 transitions. [2024-12-02 07:33:17,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 07:33:17,531 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:33:17,531 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:17,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:17,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:17,732 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:33:17,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:33:17,732 INFO L85 PathProgramCache]: Analyzing trace with hash -584009745, now seen corresponding path program 1 times [2024-12-02 07:33:17,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:33:17,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359233274] [2024-12-02 07:33:17,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:33:17,732 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 07:33:17,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:33:17,734 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:17,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:33:18,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 07:33:18,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:33:18,084 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 07:33:18,086 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 07:33:18,130 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 07:33:18,230 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 07:33:18,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2024-12-02 07:33:18,261 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 39 treesize of output 38 [2024-12-02 07:33:18,377 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-12-02 07:33:18,377 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:33:18,377 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:33:18,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359233274] [2024-12-02 07:33:18,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359233274] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:33:18,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:33:18,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:33:18,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022986964] [2024-12-02 07:33:18,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:33:18,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:33:18,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:33:18,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:33:18,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:33:18,378 INFO L87 Difference]: Start difference. First operand 236 states and 345 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:33:19,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:33:19,764 INFO L93 Difference]: Finished difference Result 690 states and 994 transitions. [2024-12-02 07:33:19,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:33:19,764 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2024-12-02 07:33:19,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:33:19,766 INFO L225 Difference]: With dead ends: 690 [2024-12-02 07:33:19,766 INFO L226 Difference]: Without dead ends: 457 [2024-12-02 07:33:19,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:33:19,767 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 515 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:33:19,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 717 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 07:33:19,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-12-02 07:33:19,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 237. [2024-12-02 07:33:19,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 209 states have (on average 1.4354066985645932) internal successors, (300), 210 states have internal predecessors, (300), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 07:33:19,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 346 transitions. [2024-12-02 07:33:19,780 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 346 transitions. Word has length 128 [2024-12-02 07:33:19,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:33:19,780 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 346 transitions. [2024-12-02 07:33:19,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:33:19,780 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 346 transitions. [2024-12-02 07:33:19,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 07:33:19,781 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:33:19,781 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:19,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:19,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:19,982 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:33:19,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:33:19,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1011601530, now seen corresponding path program 1 times [2024-12-02 07:33:19,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:33:19,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100486765] [2024-12-02 07:33:19,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:33:19,982 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 07:33:19,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:33:19,984 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:19,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:33:20,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-02 07:33:20,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:33:20,420 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 07:33:20,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-12-02 07:33:21,199 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:33:21,200 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 128 treesize of output 65 [2024-12-02 07:33:25,390 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:33:25,390 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 215 treesize of output 89 [2024-12-02 07:33:26,874 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 07:33:26,874 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:33:26,874 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:33:26,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100486765] [2024-12-02 07:33:26,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100486765] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:33:26,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:33:26,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 07:33:26,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038533172] [2024-12-02 07:33:26,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:33:26,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 07:33:26,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:33:26,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 07:33:26,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:33:26,875 INFO L87 Difference]: Start difference. First operand 237 states and 346 transitions. Second operand has 16 states, 16 states have (on average 3.625) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 07:33:41,549 WARN L286 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 80 DAG size of output: 75 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:33:45,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:33:45,657 INFO L93 Difference]: Finished difference Result 1117 states and 1628 transitions. [2024-12-02 07:33:45,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 07:33:45,658 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2024-12-02 07:33:45,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:33:45,661 INFO L225 Difference]: With dead ends: 1117 [2024-12-02 07:33:45,661 INFO L226 Difference]: Without dead ends: 883 [2024-12-02 07:33:45,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2024-12-02 07:33:45,662 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 704 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:33:45,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 1520 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-12-02 07:33:45,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-12-02 07:33:45,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 392. [2024-12-02 07:33:45,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 319 states have (on average 1.3761755485893417) internal successors, (439), 325 states have internal predecessors, (439), 60 states have call successors, (60), 12 states have call predecessors, (60), 12 states have return successors, (60), 54 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 07:33:45,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 559 transitions. [2024-12-02 07:33:45,703 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 559 transitions. Word has length 129 [2024-12-02 07:33:45,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:33:45,703 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 559 transitions. [2024-12-02 07:33:45,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 07:33:45,703 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 559 transitions. [2024-12-02 07:33:45,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 07:33:45,704 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:33:45,704 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:33:45,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:45,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:45,905 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:33:45,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:33:45,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1598407544, now seen corresponding path program 1 times [2024-12-02 07:33:45,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:33:45,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576528781] [2024-12-02 07:33:45,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:33:45,906 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 07:33:45,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:33:45,907 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:45,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:33:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:33:46,350 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-12-02 07:33:46,356 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:33:46,363 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 07:33:46,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2024-12-02 07:33:47,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 51 [2024-12-02 07:33:48,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 74 [2024-12-02 07:33:51,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 100 [2024-12-02 07:33:51,958 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 21 treesize of output 17 [2024-12-02 07:33:52,365 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 47 treesize of output 35 [2024-12-02 07:33:53,723 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:33:53,723 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 213 treesize of output 95 [2024-12-02 07:33:54,394 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 356 proven. 72 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 07:33:54,395 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:34:00,784 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:34:00,784 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:34:00,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576528781] [2024-12-02 07:34:00,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1576528781] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:34:00,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:34:00,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [47] total 56 [2024-12-02 07:34:00,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973956916] [2024-12-02 07:34:00,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:34:00,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:34:00,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:34:00,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:34:00,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=484, Invalid=2596, Unknown=0, NotChecked=0, Total=3080 [2024-12-02 07:34:00,787 INFO L87 Difference]: Start difference. First operand 392 states and 559 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:34:24,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:34:24,173 INFO L93 Difference]: Finished difference Result 1236 states and 1763 transitions. [2024-12-02 07:34:24,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 07:34:24,174 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 129 [2024-12-02 07:34:24,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:34:24,177 INFO L225 Difference]: With dead ends: 1236 [2024-12-02 07:34:24,177 INFO L226 Difference]: Without dead ends: 847 [2024-12-02 07:34:24,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1195 ImplicationChecksByTransitivity, 29.4s TimeCoverageRelationStatistics Valid=560, Invalid=3345, Unknown=1, NotChecked=0, Total=3906 [2024-12-02 07:34:24,178 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 512 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:34:24,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1733 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-12-02 07:34:24,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-12-02 07:34:24,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 399. [2024-12-02 07:34:24,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 326 states have (on average 1.3742331288343559) internal successors, (448), 332 states have internal predecessors, (448), 60 states have call successors, (60), 12 states have call predecessors, (60), 12 states have return successors, (60), 54 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 07:34:24,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 568 transitions. [2024-12-02 07:34:24,238 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 568 transitions. Word has length 129 [2024-12-02 07:34:24,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:34:24,239 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 568 transitions. [2024-12-02 07:34:24,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:34:24,239 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 568 transitions. [2024-12-02 07:34:24,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 07:34:24,240 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:34:24,240 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:24,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:24,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:24,441 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:34:24,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:34:24,441 INFO L85 PathProgramCache]: Analyzing trace with hash 2003502088, now seen corresponding path program 1 times [2024-12-02 07:34:24,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:34:24,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648281168] [2024-12-02 07:34:24,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:34:24,442 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 07:34:24,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:34:24,443 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:24,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:34:24,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 07:34:24,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:34:24,883 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 07:34:25,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2024-12-02 07:34:27,885 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:34:27,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 208 treesize of output 82 [2024-12-02 07:34:28,057 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 07:34:28,057 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:34:28,057 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:34:28,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648281168] [2024-12-02 07:34:28,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648281168] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:34:28,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:34:28,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 07:34:28,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257121472] [2024-12-02 07:34:28,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:34:28,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:34:28,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:34:28,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:34:28,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:34:28,059 INFO L87 Difference]: Start difference. First operand 399 states and 568 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 07:34:31,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:34:31,636 INFO L93 Difference]: Finished difference Result 1283 states and 1831 transitions. [2024-12-02 07:34:31,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:34:31,637 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2024-12-02 07:34:31,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:34:31,639 INFO L225 Difference]: With dead ends: 1283 [2024-12-02 07:34:31,639 INFO L226 Difference]: Without dead ends: 887 [2024-12-02 07:34:31,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:34:31,640 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 648 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:34:31,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 1101 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 07:34:31,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-12-02 07:34:31,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 865. [2024-12-02 07:34:31,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 736 states have (on average 1.3994565217391304) internal successors, (1030), 750 states have internal predecessors, (1030), 106 states have call successors, (106), 22 states have call predecessors, (106), 22 states have return successors, (106), 92 states have call predecessors, (106), 106 states have call successors, (106) [2024-12-02 07:34:31,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1242 transitions. [2024-12-02 07:34:31,729 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1242 transitions. Word has length 129 [2024-12-02 07:34:31,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:34:31,729 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1242 transitions. [2024-12-02 07:34:31,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 07:34:31,729 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1242 transitions. [2024-12-02 07:34:31,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 07:34:31,731 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:34:31,731 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:31,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:31,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:31,931 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:34:31,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:34:31,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1382473416, now seen corresponding path program 1 times [2024-12-02 07:34:31,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:34:31,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914978036] [2024-12-02 07:34:31,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:34:31,932 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 07:34:31,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:34:31,934 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:31,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:34:32,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-12-02 07:34:32,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:34:32,371 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 07:34:32,589 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 41 treesize of output 32 [2024-12-02 07:34:32,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2024-12-02 07:34:33,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 58 [2024-12-02 07:34:36,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 94 [2024-12-02 07:34:37,005 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 21 treesize of output 17 [2024-12-02 07:34:37,387 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 47 treesize of output 35 [2024-12-02 07:34:38,680 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:34:38,680 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 206 treesize of output 88 [2024-12-02 07:34:39,466 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 358 proven. 66 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-12-02 07:34:39,467 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:34:41,902 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:34:41,903 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:34:41,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914978036] [2024-12-02 07:34:41,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914978036] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:34:41,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:34:41,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [40] total 49 [2024-12-02 07:34:41,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040992639] [2024-12-02 07:34:41,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:34:41,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:34:41,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:34:41,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:34:41,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=393, Invalid=1959, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 07:34:41,904 INFO L87 Difference]: Start difference. First operand 865 states and 1242 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:34:47,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:34:47,947 INFO L93 Difference]: Finished difference Result 2573 states and 3707 transitions. [2024-12-02 07:34:47,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 07:34:47,949 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 129 [2024-12-02 07:34:47,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:34:47,955 INFO L225 Difference]: With dead ends: 2573 [2024-12-02 07:34:47,955 INFO L226 Difference]: Without dead ends: 1711 [2024-12-02 07:34:47,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=470, Invalid=2610, Unknown=0, NotChecked=0, Total=3080 [2024-12-02 07:34:47,958 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 693 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:34:47,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 1542 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-12-02 07:34:47,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2024-12-02 07:34:48,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 883. [2024-12-02 07:34:48,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 754 states have (on average 1.3978779840848807) internal successors, (1054), 768 states have internal predecessors, (1054), 106 states have call successors, (106), 22 states have call predecessors, (106), 22 states have return successors, (106), 92 states have call predecessors, (106), 106 states have call successors, (106) [2024-12-02 07:34:48,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1266 transitions. [2024-12-02 07:34:48,086 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1266 transitions. Word has length 129 [2024-12-02 07:34:48,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:34:48,087 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1266 transitions. [2024-12-02 07:34:48,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:34:48,087 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1266 transitions. [2024-12-02 07:34:48,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 07:34:48,089 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:34:48,089 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:48,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:48,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:48,290 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:34:48,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:34:48,290 INFO L85 PathProgramCache]: Analyzing trace with hash 702415046, now seen corresponding path program 1 times [2024-12-02 07:34:48,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:34:48,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [972093089] [2024-12-02 07:34:48,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:34:48,290 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 07:34:48,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:34:48,292 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:48,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:34:48,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 07:34:48,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:34:48,693 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 07:34:48,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2024-12-02 07:34:49,339 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:34:49,339 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 68 treesize of output 41 [2024-12-02 07:34:49,494 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:34:49,494 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 63 treesize of output 51 [2024-12-02 07:34:50,354 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:34:50,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 47 [2024-12-02 07:34:50,552 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:34:50,552 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 66 treesize of output 30 [2024-12-02 07:34:50,643 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 312 proven. 84 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 07:34:50,643 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:34:50,915 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:34:50,915 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:34:50,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [972093089] [2024-12-02 07:34:50,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [972093089] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:34:50,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:34:50,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [23] total 26 [2024-12-02 07:34:50,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597472633] [2024-12-02 07:34:50,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:34:50,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:34:50,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:34:50,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:34:50,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2024-12-02 07:34:50,916 INFO L87 Difference]: Start difference. First operand 883 states and 1266 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:34:51,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:34:51,504 INFO L93 Difference]: Finished difference Result 2232 states and 3192 transitions. [2024-12-02 07:34:51,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:34:51,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 129 [2024-12-02 07:34:51,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:34:51,510 INFO L225 Difference]: With dead ends: 2232 [2024-12-02 07:34:51,510 INFO L226 Difference]: Without dead ends: 1352 [2024-12-02 07:34:51,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=128, Invalid=574, Unknown=0, NotChecked=0, Total=702 [2024-12-02 07:34:51,512 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 218 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:34:51,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 565 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:34:51,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2024-12-02 07:34:51,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 883. [2024-12-02 07:34:51,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 754 states have (on average 1.389920424403183) internal successors, (1048), 768 states have internal predecessors, (1048), 106 states have call successors, (106), 22 states have call predecessors, (106), 22 states have return successors, (106), 92 states have call predecessors, (106), 106 states have call successors, (106) [2024-12-02 07:34:51,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1260 transitions. [2024-12-02 07:34:51,639 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1260 transitions. Word has length 129 [2024-12-02 07:34:51,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:34:51,639 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1260 transitions. [2024-12-02 07:34:51,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:34:51,639 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1260 transitions. [2024-12-02 07:34:51,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 07:34:51,642 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:34:51,642 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:51,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:51,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:51,842 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:34:51,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:34:51,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1634883132, now seen corresponding path program 1 times [2024-12-02 07:34:51,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:34:51,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228048333] [2024-12-02 07:34:51,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:34:51,843 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 07:34:51,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:34:51,845 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:51,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:34:52,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 07:34:52,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:34:52,147 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-12-02 07:34:52,147 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:34:52,147 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:34:52,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228048333] [2024-12-02 07:34:52,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [228048333] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:34:52,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:34:52,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:34:52,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836961582] [2024-12-02 07:34:52,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:34:52,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:34:52,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:34:52,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:34:52,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:34:52,149 INFO L87 Difference]: Start difference. First operand 883 states and 1260 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:34:52,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:34:52,248 INFO L93 Difference]: Finished difference Result 1771 states and 2529 transitions. [2024-12-02 07:34:52,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:34:52,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 129 [2024-12-02 07:34:52,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:34:52,251 INFO L225 Difference]: With dead ends: 1771 [2024-12-02 07:34:52,251 INFO L226 Difference]: Without dead ends: 891 [2024-12-02 07:34:52,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 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 07:34:52,252 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:34:52,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 472 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:34:52,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-12-02 07:34:52,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 891. [2024-12-02 07:34:52,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 762 states have (on average 1.3805774278215224) internal successors, (1052), 776 states have internal predecessors, (1052), 106 states have call successors, (106), 22 states have call predecessors, (106), 22 states have return successors, (106), 92 states have call predecessors, (106), 106 states have call successors, (106) [2024-12-02 07:34:52,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1264 transitions. [2024-12-02 07:34:52,324 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1264 transitions. Word has length 129 [2024-12-02 07:34:52,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:34:52,325 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1264 transitions. [2024-12-02 07:34:52,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:34:52,325 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1264 transitions. [2024-12-02 07:34:52,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 07:34:52,326 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:34:52,326 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:52,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:52,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:52,527 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:34:52,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:34:52,527 INFO L85 PathProgramCache]: Analyzing trace with hash 917330696, now seen corresponding path program 1 times [2024-12-02 07:34:52,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:34:52,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969535685] [2024-12-02 07:34:52,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:34:52,528 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 07:34:52,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:34:52,530 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:52,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:34:52,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 07:34:52,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:34:52,824 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 07:34:52,824 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:34:52,824 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:34:52,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969535685] [2024-12-02 07:34:52,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969535685] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:34:52,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:34:52,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:34:52,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322354956] [2024-12-02 07:34:52,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:34:52,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:34:52,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:34:52,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:34:52,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:34:52,825 INFO L87 Difference]: Start difference. First operand 891 states and 1264 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:34:52,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:34:52,917 INFO L93 Difference]: Finished difference Result 1779 states and 2525 transitions. [2024-12-02 07:34:52,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:34:52,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 129 [2024-12-02 07:34:52,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:34:52,921 INFO L225 Difference]: With dead ends: 1779 [2024-12-02 07:34:52,921 INFO L226 Difference]: Without dead ends: 891 [2024-12-02 07:34:52,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 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 07:34:52,923 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:34:52,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 472 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:34:52,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-12-02 07:34:53,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 891. [2024-12-02 07:34:53,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 762 states have (on average 1.3753280839895012) internal successors, (1048), 776 states have internal predecessors, (1048), 106 states have call successors, (106), 22 states have call predecessors, (106), 22 states have return successors, (106), 92 states have call predecessors, (106), 106 states have call successors, (106) [2024-12-02 07:34:53,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1260 transitions. [2024-12-02 07:34:53,040 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1260 transitions. Word has length 129 [2024-12-02 07:34:53,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:34:53,040 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1260 transitions. [2024-12-02 07:34:53,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:34:53,040 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1260 transitions. [2024-12-02 07:34:53,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 07:34:53,042 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:34:53,042 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:53,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:53,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:53,243 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:34:53,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:34:53,243 INFO L85 PathProgramCache]: Analyzing trace with hash -64563644, now seen corresponding path program 1 times [2024-12-02 07:34:53,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:34:53,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087350447] [2024-12-02 07:34:53,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:34:53,244 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 07:34:53,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:34:53,245 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:53,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:34:53,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 07:34:53,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:34:53,539 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:34:53,539 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:34:53,540 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:34:53,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1087350447] [2024-12-02 07:34:53,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1087350447] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:34:53,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:34:53,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:34:53,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17340632] [2024-12-02 07:34:53,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:34:53,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:34:53,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:34:53,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:34:53,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:34:53,541 INFO L87 Difference]: Start difference. First operand 891 states and 1260 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:34:53,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:34:53,673 INFO L93 Difference]: Finished difference Result 1779 states and 2517 transitions. [2024-12-02 07:34:53,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:34:53,674 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 129 [2024-12-02 07:34:53,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:34:53,677 INFO L225 Difference]: With dead ends: 1779 [2024-12-02 07:34:53,677 INFO L226 Difference]: Without dead ends: 891 [2024-12-02 07:34:53,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 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 07:34:53,678 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:34:53,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 473 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:34:53,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-12-02 07:34:53,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 891. [2024-12-02 07:34:53,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 762 states have (on average 1.3674540682414698) internal successors, (1042), 776 states have internal predecessors, (1042), 106 states have call successors, (106), 22 states have call predecessors, (106), 22 states have return successors, (106), 92 states have call predecessors, (106), 106 states have call successors, (106) [2024-12-02 07:34:53,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1254 transitions. [2024-12-02 07:34:53,777 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1254 transitions. Word has length 129 [2024-12-02 07:34:53,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:34:53,777 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1254 transitions. [2024-12-02 07:34:53,777 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:34:53,777 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1254 transitions. [2024-12-02 07:34:53,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 07:34:53,778 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:34:53,778 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:53,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:53,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:53,979 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:34:53,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:34:53,979 INFO L85 PathProgramCache]: Analyzing trace with hash 2039237587, now seen corresponding path program 1 times [2024-12-02 07:34:53,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:34:53,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420308340] [2024-12-02 07:34:53,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:34:53,980 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 07:34:53,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:34:53,981 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:53,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:34:54,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 07:34:54,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:34:54,255 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 21 treesize of output 17 [2024-12-02 07:34:54,328 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:34:54,328 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:34:54,328 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:34:54,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420308340] [2024-12-02 07:34:54,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1420308340] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:34:54,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:34:54,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:34:54,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008610850] [2024-12-02 07:34:54,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:34:54,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:34:54,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:34:54,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:34:54,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:34:54,330 INFO L87 Difference]: Start difference. First operand 891 states and 1254 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:34:55,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:34:55,098 INFO L93 Difference]: Finished difference Result 1510 states and 2082 transitions. [2024-12-02 07:34:55,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:34:55,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 130 [2024-12-02 07:34:55,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:34:55,102 INFO L225 Difference]: With dead ends: 1510 [2024-12-02 07:34:55,102 INFO L226 Difference]: Without dead ends: 1508 [2024-12-02 07:34:55,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 124 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 07:34:55,103 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 101 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:34:55,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1043 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:34:55,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2024-12-02 07:34:55,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1502. [2024-12-02 07:34:55,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1265 states have (on average 1.332806324110672) internal successors, (1686), 1297 states have internal predecessors, (1686), 192 states have call successors, (192), 44 states have call predecessors, (192), 44 states have return successors, (192), 160 states have call predecessors, (192), 192 states have call successors, (192) [2024-12-02 07:34:55,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2070 transitions. [2024-12-02 07:34:55,234 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2070 transitions. Word has length 130 [2024-12-02 07:34:55,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:34:55,234 INFO L471 AbstractCegarLoop]: Abstraction has 1502 states and 2070 transitions. [2024-12-02 07:34:55,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:34:55,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2070 transitions. [2024-12-02 07:34:55,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 07:34:55,235 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:34:55,235 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:55,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:55,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:55,436 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:34:55,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:34:55,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1526447544, now seen corresponding path program 1 times [2024-12-02 07:34:55,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:34:55,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838360089] [2024-12-02 07:34:55,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:34:55,437 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 07:34:55,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:34:55,438 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:55,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:34:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:34:55,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-02 07:34:55,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:34:55,904 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 07:34:56,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-12-02 07:34:56,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2024-12-02 07:34:58,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 85 [2024-12-02 07:34:59,310 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:34:59,310 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 178 treesize of output 76 [2024-12-02 07:34:59,688 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 323 proven. 54 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-12-02 07:34:59,688 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:35:01,228 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:01,228 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:35:01,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838360089] [2024-12-02 07:35:01,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838360089] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:35:01,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:35:01,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [34] total 40 [2024-12-02 07:35:01,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245821520] [2024-12-02 07:35:01,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:01,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:35:01,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:35:01,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:35:01,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1332, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 07:35:01,230 INFO L87 Difference]: Start difference. First operand 1502 states and 2070 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:04,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:04,327 INFO L93 Difference]: Finished difference Result 3809 states and 5226 transitions. [2024-12-02 07:35:04,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:35:04,328 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 130 [2024-12-02 07:35:04,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:04,336 INFO L225 Difference]: With dead ends: 3809 [2024-12-02 07:35:04,336 INFO L226 Difference]: Without dead ends: 2310 [2024-12-02 07:35:04,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=251, Invalid=1641, Unknown=0, NotChecked=0, Total=1892 [2024-12-02 07:35:04,339 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 119 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:04,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1347 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 07:35:04,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2024-12-02 07:35:04,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 1499. [2024-12-02 07:35:04,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1262 states have (on average 1.3335974643423139) internal successors, (1683), 1294 states have internal predecessors, (1683), 192 states have call successors, (192), 44 states have call predecessors, (192), 44 states have return successors, (192), 160 states have call predecessors, (192), 192 states have call successors, (192) [2024-12-02 07:35:04,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2067 transitions. [2024-12-02 07:35:04,522 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2067 transitions. Word has length 130 [2024-12-02 07:35:04,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:04,523 INFO L471 AbstractCegarLoop]: Abstraction has 1499 states and 2067 transitions. [2024-12-02 07:35:04,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:04,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2067 transitions. [2024-12-02 07:35:04,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 07:35:04,525 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:04,525 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:04,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:04,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:04,726 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:04,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:04,726 INFO L85 PathProgramCache]: Analyzing trace with hash 517562172, now seen corresponding path program 1 times [2024-12-02 07:35:04,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:35:04,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162847897] [2024-12-02 07:35:04,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:04,726 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 07:35:04,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:35:04,728 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:04,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:05,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-12-02 07:35:05,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:35:05,220 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 07:35:05,351 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 38 treesize of output 18 [2024-12-02 07:35:05,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2024-12-02 07:35:05,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 51 [2024-12-02 07:35:07,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 87 [2024-12-02 07:35:09,019 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:35:09,019 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 180 treesize of output 80 [2024-12-02 07:35:09,344 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 353 proven. 66 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-12-02 07:35:09,344 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:35:10,575 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:10,575 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:35:10,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162847897] [2024-12-02 07:35:10,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162847897] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:35:10,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:35:10,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [35] total 41 [2024-12-02 07:35:10,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255157786] [2024-12-02 07:35:10,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:10,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:35:10,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:35:10,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:35:10,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=1386, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 07:35:10,578 INFO L87 Difference]: Start difference. First operand 1499 states and 2067 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:13,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:13,376 INFO L93 Difference]: Finished difference Result 3118 states and 4292 transitions. [2024-12-02 07:35:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:35:13,377 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 130 [2024-12-02 07:35:13,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:13,382 INFO L225 Difference]: With dead ends: 3118 [2024-12-02 07:35:13,382 INFO L226 Difference]: Without dead ends: 1622 [2024-12-02 07:35:13,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=277, Invalid=1703, Unknown=0, NotChecked=0, Total=1980 [2024-12-02 07:35:13,384 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 114 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:13,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 1361 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 07:35:13,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2024-12-02 07:35:13,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1544. [2024-12-02 07:35:13,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1292 states have (on average 1.328173374613003) internal successors, (1716), 1327 states have internal predecessors, (1716), 204 states have call successors, (204), 47 states have call predecessors, (204), 47 states have return successors, (204), 169 states have call predecessors, (204), 204 states have call successors, (204) [2024-12-02 07:35:13,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2124 transitions. [2024-12-02 07:35:13,586 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2124 transitions. Word has length 130 [2024-12-02 07:35:13,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:13,586 INFO L471 AbstractCegarLoop]: Abstraction has 1544 states and 2124 transitions. [2024-12-02 07:35:13,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:13,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2124 transitions. [2024-12-02 07:35:13,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 07:35:13,588 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:13,588 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:13,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:13,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:13,788 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:13,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:13,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1831276299, now seen corresponding path program 1 times [2024-12-02 07:35:13,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:35:13,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738991980] [2024-12-02 07:35:13,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:13,789 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 07:35:13,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:35:13,790 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:13,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:14,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 07:35:14,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:35:14,090 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 21 treesize of output 17 [2024-12-02 07:35:14,104 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 47 treesize of output 35 [2024-12-02 07:35:14,406 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 27 treesize of output 15 [2024-12-02 07:35:14,411 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:35:14,411 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 78 treesize of output 34 [2024-12-02 07:35:14,504 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:14,504 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:35:14,504 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:35:14,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738991980] [2024-12-02 07:35:14,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738991980] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:14,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:14,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:35:14,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37495942] [2024-12-02 07:35:14,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:14,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:35:14,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:35:14,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:35:14,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:35:14,505 INFO L87 Difference]: Start difference. First operand 1544 states and 2124 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:20,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:35:23,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:35:23,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:23,874 INFO L93 Difference]: Finished difference Result 3608 states and 4943 transitions. [2024-12-02 07:35:23,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:35:23,875 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 131 [2024-12-02 07:35:23,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:23,880 INFO L225 Difference]: With dead ends: 3608 [2024-12-02 07:35:23,880 INFO L226 Difference]: Without dead ends: 2130 [2024-12-02 07:35:23,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:35:23,882 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 220 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:23,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 1141 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 717 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2024-12-02 07:35:23,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2024-12-02 07:35:24,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 1568. [2024-12-02 07:35:24,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1316 states have (on average 1.3290273556231003) internal successors, (1749), 1351 states have internal predecessors, (1749), 204 states have call successors, (204), 47 states have call predecessors, (204), 47 states have return successors, (204), 169 states have call predecessors, (204), 204 states have call successors, (204) [2024-12-02 07:35:24,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2157 transitions. [2024-12-02 07:35:24,089 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2157 transitions. Word has length 131 [2024-12-02 07:35:24,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:24,089 INFO L471 AbstractCegarLoop]: Abstraction has 1568 states and 2157 transitions. [2024-12-02 07:35:24,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:24,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2157 transitions. [2024-12-02 07:35:24,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 07:35:24,091 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:24,091 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:24,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:24,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:24,291 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:24,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:24,291 INFO L85 PathProgramCache]: Analyzing trace with hash -451741133, now seen corresponding path program 1 times [2024-12-02 07:35:24,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:35:24,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275243048] [2024-12-02 07:35:24,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:24,292 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 07:35:24,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:35:24,293 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:24,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:24,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 07:35:24,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:35:24,754 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:35:24,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 16 [2024-12-02 07:35:24,840 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:24,840 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:35:24,840 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:35:24,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275243048] [2024-12-02 07:35:24,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275243048] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:24,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:24,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:35:24,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769394457] [2024-12-02 07:35:24,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:24,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:35:24,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:35:24,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:35:24,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:35:24,841 INFO L87 Difference]: Start difference. First operand 1568 states and 2157 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:27,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:27,242 INFO L93 Difference]: Finished difference Result 3664 states and 5012 transitions. [2024-12-02 07:35:27,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:35:27,243 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 131 [2024-12-02 07:35:27,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:27,248 INFO L225 Difference]: With dead ends: 3664 [2024-12-02 07:35:27,248 INFO L226 Difference]: Without dead ends: 2162 [2024-12-02 07:35:27,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 07:35:27,251 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 126 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:27,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 545 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 07:35:27,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2162 states. [2024-12-02 07:35:27,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2162 to 1668. [2024-12-02 07:35:27,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 1392 states have (on average 1.3110632183908046) internal successors, (1825), 1427 states have internal predecessors, (1825), 220 states have call successors, (220), 55 states have call predecessors, (220), 55 states have return successors, (220), 185 states have call predecessors, (220), 220 states have call successors, (220) [2024-12-02 07:35:27,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2265 transitions. [2024-12-02 07:35:27,486 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2265 transitions. Word has length 131 [2024-12-02 07:35:27,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:27,486 INFO L471 AbstractCegarLoop]: Abstraction has 1668 states and 2265 transitions. [2024-12-02 07:35:27,486 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:27,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2265 transitions. [2024-12-02 07:35:27,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 07:35:27,488 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:27,488 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:27,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:27,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:27,688 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:27,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:27,689 INFO L85 PathProgramCache]: Analyzing trace with hash -933898665, now seen corresponding path program 1 times [2024-12-02 07:35:27,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:35:27,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458858631] [2024-12-02 07:35:27,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:27,689 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 07:35:27,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:35:27,691 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:27,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-12-02 07:35:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:28,011 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 07:35:28,013 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:35:28,056 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:35:28,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-12-02 07:35:28,128 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:28,128 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:35:28,128 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:35:28,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458858631] [2024-12-02 07:35:28,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458858631] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:28,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:28,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:35:28,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141513458] [2024-12-02 07:35:28,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:28,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:35:28,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:35:28,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:35:28,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:35:28,129 INFO L87 Difference]: Start difference. First operand 1668 states and 2265 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:29,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:29,847 INFO L93 Difference]: Finished difference Result 3250 states and 4400 transitions. [2024-12-02 07:35:29,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:35:29,848 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 132 [2024-12-02 07:35:29,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:29,852 INFO L225 Difference]: With dead ends: 3250 [2024-12-02 07:35:29,852 INFO L226 Difference]: Without dead ends: 1648 [2024-12-02 07:35:29,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 07:35:29,854 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 115 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:29,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 578 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 07:35:29,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2024-12-02 07:35:30,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1366. [2024-12-02 07:35:30,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 1152 states have (on average 1.3081597222222223) internal successors, (1507), 1178 states have internal predecessors, (1507), 169 states have call successors, (169), 44 states have call predecessors, (169), 44 states have return successors, (169), 143 states have call predecessors, (169), 169 states have call successors, (169) [2024-12-02 07:35:30,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1845 transitions. [2024-12-02 07:35:30,019 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1845 transitions. Word has length 132 [2024-12-02 07:35:30,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:30,020 INFO L471 AbstractCegarLoop]: Abstraction has 1366 states and 1845 transitions. [2024-12-02 07:35:30,020 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:30,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1845 transitions. [2024-12-02 07:35:30,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 07:35:30,021 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:30,021 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:30,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-12-02 07:35:30,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:30,221 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:30,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:30,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1427826744, now seen corresponding path program 1 times [2024-12-02 07:35:30,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:35:30,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359396520] [2024-12-02 07:35:30,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:30,222 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 07:35:30,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:35:30,223 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:30,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:30,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 07:35:30,538 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:35:30,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2024-12-02 07:35:30,559 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 47 treesize of output 35 [2024-12-02 07:35:30,911 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 27 treesize of output 15 [2024-12-02 07:35:30,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:35:30,916 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 77 treesize of output 33 [2024-12-02 07:35:31,011 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:31,011 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:35:31,011 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:35:31,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359396520] [2024-12-02 07:35:31,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359396520] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:31,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:31,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:35:31,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561924635] [2024-12-02 07:35:31,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:31,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:35:31,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:35:31,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:35:31,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:35:31,013 INFO L87 Difference]: Start difference. First operand 1366 states and 1845 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:33,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:35:38,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:35:40,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:40,058 INFO L93 Difference]: Finished difference Result 2817 states and 3800 transitions. [2024-12-02 07:35:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:35:40,059 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 132 [2024-12-02 07:35:40,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:40,062 INFO L225 Difference]: With dead ends: 2817 [2024-12-02 07:35:40,062 INFO L226 Difference]: Without dead ends: 1517 [2024-12-02 07:35:40,063 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:35:40,064 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 193 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:40,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 966 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 518 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2024-12-02 07:35:40,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2024-12-02 07:35:40,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1366. [2024-12-02 07:35:40,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 1152 states have (on average 1.3055555555555556) internal successors, (1504), 1178 states have internal predecessors, (1504), 169 states have call successors, (169), 44 states have call predecessors, (169), 44 states have return successors, (169), 143 states have call predecessors, (169), 169 states have call successors, (169) [2024-12-02 07:35:40,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1842 transitions. [2024-12-02 07:35:40,237 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1842 transitions. Word has length 132 [2024-12-02 07:35:40,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:40,237 INFO L471 AbstractCegarLoop]: Abstraction has 1366 states and 1842 transitions. [2024-12-02 07:35:40,237 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:40,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1842 transitions. [2024-12-02 07:35:40,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 07:35:40,239 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:40,239 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:40,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:40,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:40,439 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:40,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:40,440 INFO L85 PathProgramCache]: Analyzing trace with hash 584838400, now seen corresponding path program 1 times [2024-12-02 07:35:40,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:35:40,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809960382] [2024-12-02 07:35:40,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:40,440 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 07:35:40,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:35:40,442 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:40,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:35:40,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 07:35:40,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:35:40,763 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 21 treesize of output 17 [2024-12-02 07:35:40,852 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:35:40,852 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:35:40,852 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:35:40,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809960382] [2024-12-02 07:35:40,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809960382] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:35:40,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:35:40,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:35:40,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171043919] [2024-12-02 07:35:40,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:35:40,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:35:40,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:35:40,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:35:40,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:35:40,853 INFO L87 Difference]: Start difference. First operand 1366 states and 1842 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:41,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:35:41,887 INFO L93 Difference]: Finished difference Result 2218 states and 2959 transitions. [2024-12-02 07:35:41,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:35:41,888 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 133 [2024-12-02 07:35:41,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:35:41,896 INFO L225 Difference]: With dead ends: 2218 [2024-12-02 07:35:41,896 INFO L226 Difference]: Without dead ends: 2216 [2024-12-02 07:35:41,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:35:41,897 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 90 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:35:41,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 1278 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:35:41,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2024-12-02 07:35:42,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 1456. [2024-12-02 07:35:42,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1242 states have (on average 1.2979066022544283) internal successors, (1612), 1268 states have internal predecessors, (1612), 169 states have call successors, (169), 44 states have call predecessors, (169), 44 states have return successors, (169), 143 states have call predecessors, (169), 169 states have call successors, (169) [2024-12-02 07:35:42,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1950 transitions. [2024-12-02 07:35:42,075 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1950 transitions. Word has length 133 [2024-12-02 07:35:42,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:35:42,075 INFO L471 AbstractCegarLoop]: Abstraction has 1456 states and 1950 transitions. [2024-12-02 07:35:42,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:35:42,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1950 transitions. [2024-12-02 07:35:42,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:35:42,076 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:35:42,077 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:42,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:42,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:42,277 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:35:42,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:35:42,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1257941349, now seen corresponding path program 1 times [2024-12-02 07:35:42,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:35:42,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119012624] [2024-12-02 07:35:42,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:35:42,278 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 07:35:42,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:35:42,279 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:35:42,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:36:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:09,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 07:36:09,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:36:21,535 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:36:21,536 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 267 treesize of output 99 [2024-12-02 07:36:23,480 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-12-02 07:36:23,480 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:36:23,480 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:36:23,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119012624] [2024-12-02 07:36:23,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119012624] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:23,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:23,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:36:23,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982597459] [2024-12-02 07:36:23,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:23,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 07:36:23,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:36:23,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 07:36:23,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:36:23,481 INFO L87 Difference]: Start difference. First operand 1456 states and 1950 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:36:52,282 WARN L286 SmtUtils]: Spent 9.17s on a formula simplification. DAG size of input: 83 DAG size of output: 75 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:37:01,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:37:01,641 INFO L93 Difference]: Finished difference Result 3648 states and 4888 transitions. [2024-12-02 07:37:01,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:37:01,642 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 135 [2024-12-02 07:37:01,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:37:01,649 INFO L225 Difference]: With dead ends: 3648 [2024-12-02 07:37:01,649 INFO L226 Difference]: Without dead ends: 2258 [2024-12-02 07:37:01,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 21.8s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:37:01,652 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 309 mSDsluCounter, 1757 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:37:01,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 1969 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 23.9s Time] [2024-12-02 07:37:01,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2024-12-02 07:37:01,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2092. [2024-12-02 07:37:01,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2092 states, 1796 states have (on average 1.2934298440979954) internal successors, (2323), 1843 states have internal predecessors, (2323), 230 states have call successors, (230), 65 states have call predecessors, (230), 65 states have return successors, (230), 183 states have call predecessors, (230), 230 states have call successors, (230) [2024-12-02 07:37:01,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2783 transitions. [2024-12-02 07:37:01,896 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2783 transitions. Word has length 135 [2024-12-02 07:37:01,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:37:01,896 INFO L471 AbstractCegarLoop]: Abstraction has 2092 states and 2783 transitions. [2024-12-02 07:37:01,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:37:01,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2783 transitions. [2024-12-02 07:37:01,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:37:01,898 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:37:01,898 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:01,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 07:37:02,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:37:02,099 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:37:02,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:37:02,099 INFO L85 PathProgramCache]: Analyzing trace with hash -577882979, now seen corresponding path program 1 times [2024-12-02 07:37:02,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:37:02,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234100682] [2024-12-02 07:37:02,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:37:02,100 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 07:37:02,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:37:02,101 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:37:02,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:37:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:37:02,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 07:37:02,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:37:02,583 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 21 treesize of output 17 [2024-12-02 07:37:02,599 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 39 treesize of output 38 [2024-12-02 07:37:02,719 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:37:02,719 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:37:02,719 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:37:02,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234100682] [2024-12-02 07:37:02,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [234100682] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:37:02,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:37:02,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:37:02,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823115139] [2024-12-02 07:37:02,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:37:02,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:37:02,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:37:02,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:37:02,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:37:02,721 INFO L87 Difference]: Start difference. First operand 2092 states and 2783 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:37:04,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:37:04,761 INFO L93 Difference]: Finished difference Result 5983 states and 7968 transitions. [2024-12-02 07:37:04,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:37:04,762 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 135 [2024-12-02 07:37:04,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:37:04,773 INFO L225 Difference]: With dead ends: 5983 [2024-12-02 07:37:04,773 INFO L226 Difference]: Without dead ends: 3966 [2024-12-02 07:37:04,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:37:04,775 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 320 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1363 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:37:04,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 1363 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 07:37:04,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3966 states. [2024-12-02 07:37:05,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3966 to 2382. [2024-12-02 07:37:05,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2086 states have (on average 1.2929050814956855) internal successors, (2697), 2133 states have internal predecessors, (2697), 230 states have call successors, (230), 65 states have call predecessors, (230), 65 states have return successors, (230), 183 states have call predecessors, (230), 230 states have call successors, (230) [2024-12-02 07:37:05,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3157 transitions. [2024-12-02 07:37:05,102 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3157 transitions. Word has length 135 [2024-12-02 07:37:05,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:37:05,103 INFO L471 AbstractCegarLoop]: Abstraction has 2382 states and 3157 transitions. [2024-12-02 07:37:05,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:37:05,103 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3157 transitions. [2024-12-02 07:37:05,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 07:37:05,105 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:37:05,105 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:05,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:37:05,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:37:05,306 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:37:05,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:37:05,306 INFO L85 PathProgramCache]: Analyzing trace with hash 34153230, now seen corresponding path program 1 times [2024-12-02 07:37:05,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:37:05,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209183231] [2024-12-02 07:37:05,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:37:05,307 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 07:37:05,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:37:05,308 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:37:05,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:37:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:37:05,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-12-02 07:37:05,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:37:05,801 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 07:37:05,864 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 07:37:06,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2024-12-02 07:37:06,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 50 [2024-12-02 07:37:07,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 54 [2024-12-02 07:37:11,175 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:37:11,175 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 98 treesize of output 69 [2024-12-02 07:37:11,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-12-02 07:37:11,458 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 35 treesize of output 27 [2024-12-02 07:37:11,734 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:37:11,734 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 112 treesize of output 52 [2024-12-02 07:37:11,776 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 19 treesize of output 11 [2024-12-02 07:37:11,966 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 366 proven. 84 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 07:37:11,966 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:37:15,547 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 54 treesize of output 46 [2024-12-02 07:37:16,230 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:37:16,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209183231] [2024-12-02 07:37:16,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209183231] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:37:16,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1321037864] [2024-12-02 07:37:16,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:37:16,230 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 07:37:16,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 07:37:16,232 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 07:37:16,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2024-12-02 07:37:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:37:17,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 07:37:17,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:37:17,707 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 07:37:18,474 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 07:37:19,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:37:19,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2024-12-02 07:37:21,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 29 [2024-12-02 07:37:24,238 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:37:24,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 45 [2024-12-02 07:37:24,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 07:37:24,334 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 33 treesize of output 25 [2024-12-02 07:37:24,696 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:37:24,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 41 [2024-12-02 07:37:24,723 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 19 treesize of output 11 [2024-12-02 07:37:33,060 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 370 proven. 66 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-12-02 07:37:33,060 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:37:35,310 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 54 treesize of output 46 [2024-12-02 07:37:36,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1321037864] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:37:36,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:37:36,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 25] total 61 [2024-12-02 07:37:36,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061554515] [2024-12-02 07:37:36,371 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:37:36,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-12-02 07:37:36,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:37:36,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-12-02 07:37:36,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=690, Invalid=4710, Unknown=2, NotChecked=0, Total=5402 [2024-12-02 07:37:36,374 INFO L87 Difference]: Start difference. First operand 2382 states and 3157 transitions. Second operand has 61 states, 49 states have (on average 3.2653061224489797) internal successors, (160), 55 states have internal predecessors, (160), 22 states have call successors, (32), 16 states have call predecessors, (32), 22 states have return successors, (32), 14 states have call predecessors, (32), 22 states have call successors, (32) [2024-12-02 07:37:54,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:38:03,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:38:03,226 INFO L93 Difference]: Finished difference Result 5336 states and 6723 transitions. [2024-12-02 07:38:03,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-12-02 07:38:03,227 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 49 states have (on average 3.2653061224489797) internal successors, (160), 55 states have internal predecessors, (160), 22 states have call successors, (32), 16 states have call predecessors, (32), 22 states have return successors, (32), 14 states have call predecessors, (32), 22 states have call successors, (32) Word has length 137 [2024-12-02 07:38:03,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:38:03,233 INFO L225 Difference]: With dead ends: 5336 [2024-12-02 07:38:03,233 INFO L226 Difference]: Without dead ends: 3029 [2024-12-02 07:38:03,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 270 SyntacticMatches, 3 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4725 ImplicationChecksByTransitivity, 37.8s TimeCoverageRelationStatistics Valid=2216, Invalid=13033, Unknown=3, NotChecked=0, Total=15252 [2024-12-02 07:38:03,237 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 1098 mSDsluCounter, 1859 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 162 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 1938 SdHoareTripleChecker+Invalid, 2451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:38:03,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 1938 Invalid, 2451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 2288 Invalid, 1 Unknown, 0 Unchecked, 12.2s Time] [2024-12-02 07:38:03,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3029 states. [2024-12-02 07:38:03,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3029 to 1169. [2024-12-02 07:38:03,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 1002 states have (on average 1.1946107784431137) internal successors, (1197), 1018 states have internal predecessors, (1197), 99 states have call successors, (99), 67 states have call predecessors, (99), 67 states have return successors, (99), 83 states have call predecessors, (99), 99 states have call successors, (99) [2024-12-02 07:38:03,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1395 transitions. [2024-12-02 07:38:03,468 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1395 transitions. Word has length 137 [2024-12-02 07:38:03,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:38:03,468 INFO L471 AbstractCegarLoop]: Abstraction has 1169 states and 1395 transitions. [2024-12-02 07:38:03,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 49 states have (on average 3.2653061224489797) internal successors, (160), 55 states have internal predecessors, (160), 22 states have call successors, (32), 16 states have call predecessors, (32), 22 states have return successors, (32), 14 states have call predecessors, (32), 22 states have call successors, (32) [2024-12-02 07:38:03,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1395 transitions. [2024-12-02 07:38:03,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 07:38:03,470 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:38:03,470 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:03,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:38:03,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2024-12-02 07:38:03,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 07:38:03,871 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:38:03,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:03,871 INFO L85 PathProgramCache]: Analyzing trace with hash -566469170, now seen corresponding path program 1 times [2024-12-02 07:38:03,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:38:03,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661884538] [2024-12-02 07:38:03,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:03,872 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 07:38:03,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:38:03,873 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:38:03,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-12-02 07:38:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:04,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-12-02 07:38:04,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:38:04,350 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 07:38:04,412 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 07:38:04,699 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 28 [2024-12-02 07:38:04,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 31 [2024-12-02 07:38:05,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 45 [2024-12-02 07:38:06,970 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:38:06,970 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 70 treesize of output 59 [2024-12-02 07:38:07,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-12-02 07:38:07,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-12-02 07:38:07,407 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 19 treesize of output 11 [2024-12-02 07:38:07,413 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 15 treesize of output 7 [2024-12-02 07:38:07,421 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:38:07,421 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 79 treesize of output 37 [2024-12-02 07:38:07,556 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 364 proven. 78 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 07:38:07,556 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:38:10,251 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 54 treesize of output 46 [2024-12-02 07:38:10,902 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:38:10,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661884538] [2024-12-02 07:38:10,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661884538] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:38:10,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [959992238] [2024-12-02 07:38:10,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:10,903 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 07:38:10,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 07:38:10,904 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 07:38:10,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2024-12-02 07:38:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:12,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-12-02 07:38:12,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:38:12,362 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 07:38:12,876 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 07:38:13,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:38:13,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2024-12-02 07:38:14,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 29 [2024-12-02 07:38:17,677 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:38:17,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 45 [2024-12-02 07:38:17,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 07:38:17,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 07:38:18,146 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 19 treesize of output 11 [2024-12-02 07:38:18,155 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:38:18,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 36 [2024-12-02 07:38:18,171 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 15 treesize of output 7 [2024-12-02 07:38:18,416 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 370 proven. 66 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-12-02 07:38:18,416 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:38:18,951 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 54 treesize of output 46 [2024-12-02 07:38:19,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [959992238] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:38:19,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:38:19,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 24] total 51 [2024-12-02 07:38:19,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279856819] [2024-12-02 07:38:19,549 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:38:19,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-12-02 07:38:19,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:38:19,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-12-02 07:38:19,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=467, Invalid=2839, Unknown=0, NotChecked=0, Total=3306 [2024-12-02 07:38:19,550 INFO L87 Difference]: Start difference. First operand 1169 states and 1395 transitions. Second operand has 51 states, 40 states have (on average 4.175) internal successors, (167), 48 states have internal predecessors, (167), 21 states have call successors, (32), 12 states have call predecessors, (32), 21 states have return successors, (32), 14 states have call predecessors, (32), 21 states have call successors, (32) [2024-12-02 07:38:26,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:38:26,002 INFO L93 Difference]: Finished difference Result 2222 states and 2623 transitions. [2024-12-02 07:38:26,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-12-02 07:38:26,003 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 40 states have (on average 4.175) internal successors, (167), 48 states have internal predecessors, (167), 21 states have call successors, (32), 12 states have call predecessors, (32), 21 states have return successors, (32), 14 states have call predecessors, (32), 21 states have call successors, (32) Word has length 137 [2024-12-02 07:38:26,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:38:26,006 INFO L225 Difference]: With dead ends: 2222 [2024-12-02 07:38:26,006 INFO L226 Difference]: Without dead ends: 1135 [2024-12-02 07:38:26,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 298 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2290 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=1154, Invalid=6502, Unknown=0, NotChecked=0, Total=7656 [2024-12-02 07:38:26,008 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 235 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:38:26,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1218 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 07:38:26,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2024-12-02 07:38:26,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1125. [2024-12-02 07:38:26,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 958 states have (on average 1.1659707724425887) internal successors, (1117), 974 states have internal predecessors, (1117), 99 states have call successors, (99), 67 states have call predecessors, (99), 67 states have return successors, (99), 83 states have call predecessors, (99), 99 states have call successors, (99) [2024-12-02 07:38:26,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1315 transitions. [2024-12-02 07:38:26,217 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1315 transitions. Word has length 137 [2024-12-02 07:38:26,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:38:26,217 INFO L471 AbstractCegarLoop]: Abstraction has 1125 states and 1315 transitions. [2024-12-02 07:38:26,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 40 states have (on average 4.175) internal successors, (167), 48 states have internal predecessors, (167), 21 states have call successors, (32), 12 states have call predecessors, (32), 21 states have return successors, (32), 14 states have call predecessors, (32), 21 states have call successors, (32) [2024-12-02 07:38:26,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1315 transitions. [2024-12-02 07:38:26,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 07:38:26,218 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:38:26,218 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:26,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2024-12-02 07:38:26,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-12-02 07:38:26,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:38:26,619 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:38:26,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:26,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1102395539, now seen corresponding path program 1 times [2024-12-02 07:38:26,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:38:26,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068287827] [2024-12-02 07:38:26,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:26,620 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 07:38:26,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:38:26,621 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:38:26,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-12-02 07:38:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:27,109 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 07:38:27,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:38:27,116 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 07:38:27,160 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 07:38:27,261 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 07:38:27,277 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 21 treesize of output 17 [2024-12-02 07:38:27,311 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 39 treesize of output 38 [2024-12-02 07:38:27,502 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-12-02 07:38:27,502 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:38:27,502 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:38:27,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068287827] [2024-12-02 07:38:27,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068287827] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:27,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:27,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:38:27,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359818916] [2024-12-02 07:38:27,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:27,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:38:27,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:38:27,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:38:27,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:38:27,503 INFO L87 Difference]: Start difference. First operand 1125 states and 1315 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:38:29,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:38:29,292 INFO L93 Difference]: Finished difference Result 3038 states and 3519 transitions. [2024-12-02 07:38:29,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 07:38:29,293 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), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 137 [2024-12-02 07:38:29,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:38:29,298 INFO L225 Difference]: With dead ends: 3038 [2024-12-02 07:38:29,298 INFO L226 Difference]: Without dead ends: 1995 [2024-12-02 07:38:29,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:38:29,300 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 312 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:38:29,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 846 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 07:38:29,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2024-12-02 07:38:29,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1125. [2024-12-02 07:38:29,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 958 states have (on average 1.1659707724425887) internal successors, (1117), 974 states have internal predecessors, (1117), 99 states have call successors, (99), 67 states have call predecessors, (99), 67 states have return successors, (99), 83 states have call predecessors, (99), 99 states have call successors, (99) [2024-12-02 07:38:29,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1315 transitions. [2024-12-02 07:38:29,578 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1315 transitions. Word has length 137 [2024-12-02 07:38:29,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:38:29,578 INFO L471 AbstractCegarLoop]: Abstraction has 1125 states and 1315 transitions. [2024-12-02 07:38:29,578 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), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 07:38:29,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1315 transitions. [2024-12-02 07:38:29,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 07:38:29,580 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:38:29,580 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:29,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-12-02 07:38:29,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:38:29,780 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:38:29,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:29,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1782453909, now seen corresponding path program 1 times [2024-12-02 07:38:29,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:38:29,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1477755631] [2024-12-02 07:38:29,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:29,781 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 07:38:29,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:38:29,783 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:38:29,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-12-02 07:38:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:42,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 07:38:42,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:38:57,139 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:38:57,139 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 264 treesize of output 96 [2024-12-02 07:38:58,726 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 125 proven. 39 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-12-02 07:38:58,726 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:39:13,752 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:39:13,752 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:39:13,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1477755631] [2024-12-02 07:39:13,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1477755631] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:39:13,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:39:13,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 23 [2024-12-02 07:39:13,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252599839] [2024-12-02 07:39:13,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:39:13,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:39:13,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:39:13,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:39:13,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2024-12-02 07:39:13,753 INFO L87 Difference]: Start difference. First operand 1125 states and 1315 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:39:35,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:39:35,032 INFO L93 Difference]: Finished difference Result 2468 states and 2880 transitions. [2024-12-02 07:39:35,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:39:35,038 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-12-02 07:39:35,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:39:35,041 INFO L225 Difference]: With dead ends: 2468 [2024-12-02 07:39:35,041 INFO L226 Difference]: Without dead ends: 1425 [2024-12-02 07:39:35,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 30.9s TimeCoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2024-12-02 07:39:35,042 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 96 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:39:35,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 701 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2024-12-02 07:39:35,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2024-12-02 07:39:35,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1215. [2024-12-02 07:39:35,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 1048 states have (on average 1.1669847328244274) internal successors, (1223), 1064 states have internal predecessors, (1223), 99 states have call successors, (99), 67 states have call predecessors, (99), 67 states have return successors, (99), 83 states have call predecessors, (99), 99 states have call successors, (99) [2024-12-02 07:39:35,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1421 transitions. [2024-12-02 07:39:35,260 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1421 transitions. Word has length 137 [2024-12-02 07:39:35,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:39:35,260 INFO L471 AbstractCegarLoop]: Abstraction has 1215 states and 1421 transitions. [2024-12-02 07:39:35,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:39:35,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1421 transitions. [2024-12-02 07:39:35,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 07:39:35,261 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:39:35,261 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:35,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2024-12-02 07:39:35,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:39:35,462 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:39:35,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:39:35,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1811448809, now seen corresponding path program 1 times [2024-12-02 07:39:35,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:39:35,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140405142] [2024-12-02 07:39:35,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:39:35,463 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 07:39:35,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:39:35,464 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:39:35,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-12-02 07:39:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:39:36,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 07:39:36,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:39:42,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:39:42,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 169 treesize of output 61 [2024-12-02 07:39:43,447 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 125 proven. 39 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-12-02 07:39:43,447 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:39:52,104 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:39:52,104 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:39:52,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140405142] [2024-12-02 07:39:52,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [140405142] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:39:52,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:39:52,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-12-02 07:39:52,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655986974] [2024-12-02 07:39:52,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:39:52,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:39:52,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:39:52,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:39:52,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:39:52,106 INFO L87 Difference]: Start difference. First operand 1215 states and 1421 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:40:03,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:40:09,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:40:09,759 INFO L93 Difference]: Finished difference Result 2562 states and 2983 transitions. [2024-12-02 07:40:09,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:40:09,765 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), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-12-02 07:40:09,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:40:09,768 INFO L225 Difference]: With dead ends: 2562 [2024-12-02 07:40:09,768 INFO L226 Difference]: Without dead ends: 1429 [2024-12-02 07:40:09,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:40:09,769 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 39 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:40:09,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 478 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 15.9s Time] [2024-12-02 07:40:09,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1429 states. [2024-12-02 07:40:10,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 1209. [2024-12-02 07:40:10,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 1038 states have (on average 1.1618497109826589) internal successors, (1206), 1056 states have internal predecessors, (1206), 101 states have call successors, (101), 69 states have call predecessors, (101), 69 states have return successors, (101), 83 states have call predecessors, (101), 101 states have call successors, (101) [2024-12-02 07:40:10,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1408 transitions. [2024-12-02 07:40:10,047 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1408 transitions. Word has length 137 [2024-12-02 07:40:10,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:40:10,048 INFO L471 AbstractCegarLoop]: Abstraction has 1209 states and 1408 transitions. [2024-12-02 07:40:10,048 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), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:40:10,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1408 transitions. [2024-12-02 07:40:10,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 07:40:10,049 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:40:10,049 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:10,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2024-12-02 07:40:10,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:40:10,250 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:40:10,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:40:10,250 INFO L85 PathProgramCache]: Analyzing trace with hash -586548203, now seen corresponding path program 1 times [2024-12-02 07:40:10,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:40:10,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311166697] [2024-12-02 07:40:10,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:40:10,250 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 07:40:10,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:40:10,252 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:40:10,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-12-02 07:40:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:40:20,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 07:40:20,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:40:40,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:40:40,266 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 265 treesize of output 97 [2024-12-02 07:40:42,520 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 125 proven. 39 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-12-02 07:40:42,521 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:41:05,249 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:41:05,249 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:41:05,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311166697] [2024-12-02 07:41:05,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311166697] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:41:05,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:41:05,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 23 [2024-12-02 07:41:05,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139606381] [2024-12-02 07:41:05,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:41:05,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:41:05,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:41:05,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:41:05,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2024-12-02 07:41:05,250 INFO L87 Difference]: Start difference. First operand 1209 states and 1408 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:41:35,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:41:35,524 INFO L93 Difference]: Finished difference Result 2545 states and 2950 transitions. [2024-12-02 07:41:35,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:41:35,529 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-12-02 07:41:35,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:41:35,532 INFO L225 Difference]: With dead ends: 2545 [2024-12-02 07:41:35,533 INFO L226 Difference]: Without dead ends: 1418 [2024-12-02 07:41:35,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 43.9s TimeCoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2024-12-02 07:41:35,534 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 133 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:41:35,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 692 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 17.9s Time] [2024-12-02 07:41:35,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2024-12-02 07:41:35,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1213. [2024-12-02 07:41:35,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 1042 states have (on average 1.1573896353166986) internal successors, (1206), 1060 states have internal predecessors, (1206), 101 states have call successors, (101), 69 states have call predecessors, (101), 69 states have return successors, (101), 83 states have call predecessors, (101), 101 states have call successors, (101) [2024-12-02 07:41:35,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1408 transitions. [2024-12-02 07:41:35,807 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1408 transitions. Word has length 137 [2024-12-02 07:41:35,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:41:35,807 INFO L471 AbstractCegarLoop]: Abstraction has 1213 states and 1408 transitions. [2024-12-02 07:41:35,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:41:35,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1408 transitions. [2024-12-02 07:41:35,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 07:41:35,808 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:41:35,809 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:35,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2024-12-02 07:41:36,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:41:36,009 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:41:36,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:41:36,009 INFO L85 PathProgramCache]: Analyzing trace with hash -2089811561, now seen corresponding path program 1 times [2024-12-02 07:41:36,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:41:36,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555081056] [2024-12-02 07:41:36,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:41:36,010 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 07:41:36,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:41:36,012 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:41:36,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2024-12-02 07:41:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:41:36,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 07:41:36,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:41:44,516 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:41:44,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 170 treesize of output 62 [2024-12-02 07:41:46,206 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 125 proven. 39 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-12-02 07:41:46,206 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:41:57,444 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:41:57,444 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:41:57,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555081056] [2024-12-02 07:41:57,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555081056] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:41:57,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:41:57,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-12-02 07:41:57,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251244843] [2024-12-02 07:41:57,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:41:57,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:41:57,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:41:57,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:41:57,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:41:57,445 INFO L87 Difference]: Start difference. First operand 1213 states and 1408 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:42:01,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:42:04,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:42:19,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:42:19,606 INFO L93 Difference]: Finished difference Result 2424 states and 2797 transitions. [2024-12-02 07:42:19,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:42:19,612 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), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-12-02 07:42:19,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:42:19,615 INFO L225 Difference]: With dead ends: 2424 [2024-12-02 07:42:19,615 INFO L226 Difference]: Without dead ends: 1293 [2024-12-02 07:42:19,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:42:19,617 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 80 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:42:19,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 363 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 20.3s Time] [2024-12-02 07:42:19,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2024-12-02 07:42:19,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1077. [2024-12-02 07:42:19,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 907 states have (on average 1.137816979051819) internal successors, (1032), 924 states have internal predecessors, (1032), 99 states have call successors, (99), 70 states have call predecessors, (99), 70 states have return successors, (99), 82 states have call predecessors, (99), 99 states have call successors, (99) [2024-12-02 07:42:19,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1230 transitions. [2024-12-02 07:42:19,920 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1230 transitions. Word has length 137 [2024-12-02 07:42:19,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:42:19,920 INFO L471 AbstractCegarLoop]: Abstraction has 1077 states and 1230 transitions. [2024-12-02 07:42:19,921 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), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:42:19,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1230 transitions. [2024-12-02 07:42:19,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 07:42:19,923 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:42:19,923 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:42:19,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2024-12-02 07:42:20,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:42:20,123 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:42:20,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:42:20,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1388746983, now seen corresponding path program 1 times [2024-12-02 07:42:20,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:42:20,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199541668] [2024-12-02 07:42:20,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:42:20,124 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 07:42:20,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:42:20,126 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:42:20,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2024-12-02 07:43:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:43:00,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 07:43:00,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:43:21,699 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:43:21,700 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 263 treesize of output 95 [2024-12-02 07:43:24,030 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 125 proven. 39 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-12-02 07:43:24,030 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:43:46,101 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:43:46,101 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:43:46,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199541668] [2024-12-02 07:43:46,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199541668] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:43:46,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:43:46,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 23 [2024-12-02 07:43:46,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975191930] [2024-12-02 07:43:46,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:43:46,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:43:46,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:43:46,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:43:46,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2024-12-02 07:43:46,103 INFO L87 Difference]: Start difference. First operand 1077 states and 1230 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:44:17,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:44:17,328 INFO L93 Difference]: Finished difference Result 2134 states and 2429 transitions. [2024-12-02 07:44:17,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:44:17,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-12-02 07:44:17,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:44:17,336 INFO L225 Difference]: With dead ends: 2134 [2024-12-02 07:44:17,336 INFO L226 Difference]: Without dead ends: 1129 [2024-12-02 07:44:17,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 45.4s TimeCoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2024-12-02 07:44:17,337 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 59 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:44:17,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 711 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 18.3s Time] [2024-12-02 07:44:17,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2024-12-02 07:44:17,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1069. [2024-12-02 07:44:17,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 899 states have (on average 1.1345939933259177) internal successors, (1020), 916 states have internal predecessors, (1020), 99 states have call successors, (99), 70 states have call predecessors, (99), 70 states have return successors, (99), 82 states have call predecessors, (99), 99 states have call successors, (99) [2024-12-02 07:44:17,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1218 transitions. [2024-12-02 07:44:17,606 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1218 transitions. Word has length 137 [2024-12-02 07:44:17,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:44:17,606 INFO L471 AbstractCegarLoop]: Abstraction has 1069 states and 1218 transitions. [2024-12-02 07:44:17,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:44:17,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1218 transitions. [2024-12-02 07:44:17,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 07:44:17,607 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:44:17,607 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:17,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2024-12-02 07:44:17,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:44:17,808 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:44:17,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:44:17,808 INFO L85 PathProgramCache]: Analyzing trace with hash 537218201, now seen corresponding path program 1 times [2024-12-02 07:44:17,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:44:17,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57856065] [2024-12-02 07:44:17,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:44:17,809 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 07:44:17,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:44:17,811 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:44:17,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2024-12-02 07:45:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:17,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 07:45:17,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:45:35,099 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:45:35,099 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 264 treesize of output 96 [2024-12-02 07:45:43,567 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 125 proven. 39 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-12-02 07:45:43,568 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:45:57,227 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-12-02 07:45:57,227 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:45:57,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57856065] [2024-12-02 07:45:57,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57856065] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:45:57,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:45:57,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15] total 21 [2024-12-02 07:45:57,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595108944] [2024-12-02 07:45:57,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:57,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:45:57,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:45:57,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:45:57,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2024-12-02 07:45:57,229 INFO L87 Difference]: Start difference. First operand 1069 states and 1218 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:46:09,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:46:09,761 INFO L93 Difference]: Finished difference Result 2102 states and 2385 transitions. [2024-12-02 07:46:09,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:46:09,765 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-12-02 07:46:09,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:46:09,768 INFO L225 Difference]: With dead ends: 2102 [2024-12-02 07:46:09,769 INFO L226 Difference]: Without dead ends: 1105 [2024-12-02 07:46:09,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 33.3s TimeCoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2024-12-02 07:46:09,770 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 50 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:46:09,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 586 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-12-02 07:46:09,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2024-12-02 07:46:10,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 1045. [2024-12-02 07:46:10,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 875 states have (on average 1.1291428571428572) internal successors, (988), 892 states have internal predecessors, (988), 99 states have call successors, (99), 70 states have call predecessors, (99), 70 states have return successors, (99), 82 states have call predecessors, (99), 99 states have call successors, (99) [2024-12-02 07:46:10,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1186 transitions. [2024-12-02 07:46:10,179 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1186 transitions. Word has length 137 [2024-12-02 07:46:10,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:46:10,179 INFO L471 AbstractCegarLoop]: Abstraction has 1045 states and 1186 transitions. [2024-12-02 07:46:10,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 07:46:10,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1186 transitions. [2024-12-02 07:46:10,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 07:46:10,181 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:46:10,182 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:46:10,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2024-12-02 07:46:10,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:46:10,382 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:46:10,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:10,383 INFO L85 PathProgramCache]: Analyzing trace with hash 176334385, now seen corresponding path program 1 times [2024-12-02 07:46:10,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:46:10,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988899798] [2024-12-02 07:46:10,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:10,383 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 07:46:10,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:46:10,385 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 07:46:10,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08d05e7-37b2-4bf4-8931-77ff54961dfc/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2024-12-02 07:46:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:10,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 07:46:10,891 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:46:10,897 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 21 treesize of output 17 [2024-12-02 07:46:10,920 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 47 treesize of output 35 [2024-12-02 07:46:11,548 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 27 treesize of output 15 [2024-12-02 07:46:11,556 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:46:11,556 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 78 treesize of output 34