./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.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_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/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_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/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_c572a13a-3b1a-40af-9814-f1bf78d01d15/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 9d5c0cca82b2b1013f4104737c9e937fc2a95196aace035533aadd05da24a612 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 05:56:53,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 05:56:53,547 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 05:56:53,551 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 05:56:53,552 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 05:56:53,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 05:56:53,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 05:56:53,572 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 05:56:53,572 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 05:56:53,572 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 05:56:53,573 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 05:56:53,573 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 05:56:53,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 05:56:53,573 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 05:56:53,573 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 05:56:53,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 05:56:53,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 05:56:53,574 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 05:56:53,574 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 05:56:53,574 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 05:56:53,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 05:56:53,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 05:56:53,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 05:56:53,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 05:56:53,574 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 05:56:53,574 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 05:56:53,574 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 05:56:53,574 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 05:56:53,574 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 05:56:53,574 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:56:53,574 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:56:53,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:56:53,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:56:53,575 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 05:56:53,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:56:53,575 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:56:53,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:56:53,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:56:53,575 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 05:56:53,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 05:56:53,575 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 05:56:53,575 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 05:56:53,575 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 05:56:53,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 05:56:53,575 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 05:56:53,575 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 05:56:53,576 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 05:56:53,576 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 05:56:53,576 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_c572a13a-3b1a-40af-9814-f1bf78d01d15/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 -> 9d5c0cca82b2b1013f4104737c9e937fc2a95196aace035533aadd05da24a612 [2024-12-02 05:56:53,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 05:56:53,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 05:56:53,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 05:56:53,821 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 05:56:53,821 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 05:56:53,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i [2024-12-02 05:56:56,480 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/data/a414f754c/71fb40770d33412691e6ad56f51b5710/FLAG7129d40bd [2024-12-02 05:56:56,677 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 05:56:56,678 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i [2024-12-02 05:56:56,685 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/data/a414f754c/71fb40770d33412691e6ad56f51b5710/FLAG7129d40bd [2024-12-02 05:56:57,042 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/data/a414f754c/71fb40770d33412691e6ad56f51b5710 [2024-12-02 05:56:57,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 05:56:57,044 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 05:56:57,045 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 05:56:57,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 05:56:57,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 05:56:57,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:56:57" (1/1) ... [2024-12-02 05:56:57,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c01c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:57, skipping insertion in model container [2024-12-02 05:56:57,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:56:57" (1/1) ... [2024-12-02 05:56:57,064 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 05:56:57,185 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_c572a13a-3b1a-40af-9814-f1bf78d01d15/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i[916,929] [2024-12-02 05:56:57,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:56:57,246 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 05:56:57,255 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_c572a13a-3b1a-40af-9814-f1bf78d01d15/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i[916,929] [2024-12-02 05:56:57,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:56:57,303 INFO L204 MainTranslator]: Completed translation [2024-12-02 05:56:57,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:57 WrapperNode [2024-12-02 05:56:57,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 05:56:57,304 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 05:56:57,305 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 05:56:57,305 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 05:56:57,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:57" (1/1) ... [2024-12-02 05:56:57,319 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:57" (1/1) ... [2024-12-02 05:56:57,348 INFO L138 Inliner]: procedures = 29, calls = 131, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 412 [2024-12-02 05:56:57,348 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 05:56:57,348 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 05:56:57,348 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 05:56:57,349 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 05:56:57,356 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:57" (1/1) ... [2024-12-02 05:56:57,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:57" (1/1) ... [2024-12-02 05:56:57,360 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:57" (1/1) ... [2024-12-02 05:56:57,379 INFO L175 MemorySlicer]: Split 103 memory accesses to 7 slices as follows [2, 13, 18, 8, 45, 11, 6]. 44 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 2, 2, 1, 4, 1, 1]. The 15 writes are split as follows [0, 2, 2, 1, 5, 3, 2]. [2024-12-02 05:56:57,379 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:57" (1/1) ... [2024-12-02 05:56:57,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:57" (1/1) ... [2024-12-02 05:56:57,396 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:57" (1/1) ... [2024-12-02 05:56:57,398 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:57" (1/1) ... [2024-12-02 05:56:57,402 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:57" (1/1) ... [2024-12-02 05:56:57,404 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:57" (1/1) ... [2024-12-02 05:56:57,406 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:57" (1/1) ... [2024-12-02 05:56:57,410 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 05:56:57,411 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 05:56:57,411 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 05:56:57,411 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 05:56:57,412 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:57" (1/1) ... [2024-12-02 05:56:57,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:56:57,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:56:57,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 05:56:57,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 05:56:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 05:56:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 05:56:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 05:56:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 05:56:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 05:56:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 05:56:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 05:56:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 05:56:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-12-02 05:56:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-12-02 05:56:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-12-02 05:56:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-12-02 05:56:57,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-12-02 05:56:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-12-02 05:56:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-12-02 05:56:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-12-02 05:56:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-12-02 05:56:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-12-02 05:56:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-12-02 05:56:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-12-02 05:56:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-12-02 05:56:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-12-02 05:56:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 05:56:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 05:56:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 05:56:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 05:56:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 05:56:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 05:56:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 05:56:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-12-02 05:56:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-12-02 05:56:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-12-02 05:56:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-12-02 05:56:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-12-02 05:56:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-12-02 05:56:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-12-02 05:56:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 05:56:57,465 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 05:56:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 05:56:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 05:56:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 05:56:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 05:56:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 05:56:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 05:56:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 05:56:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 05:56:57,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 05:56:57,582 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 05:56:57,583 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 05:56:57,955 INFO L? ?]: Removed 100 outVars from TransFormulas that were not future-live. [2024-12-02 05:56:57,955 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 05:56:57,965 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 05:56:57,966 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 05:56:57,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:56:57 BoogieIcfgContainer [2024-12-02 05:56:57,966 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 05:56:57,968 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 05:56:57,968 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 05:56:57,973 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 05:56:57,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:56:57" (1/3) ... [2024-12-02 05:56:57,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a9c59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:56:57, skipping insertion in model container [2024-12-02 05:56:57,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:56:57" (2/3) ... [2024-12-02 05:56:57,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a9c59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:56:57, skipping insertion in model container [2024-12-02 05:56:57,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:56:57" (3/3) ... [2024-12-02 05:56:57,975 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-79.i [2024-12-02 05:56:57,990 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 05:56:57,991 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-79.i that has 2 procedures, 95 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 05:56:58,055 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 05:56:58,067 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;@8811ce4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 05:56:58,067 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 05:56:58,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 82 states have internal predecessors, (116), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 05:56:58,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 05:56:58,079 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:58,079 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:56:58,080 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:58,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:58,083 INFO L85 PathProgramCache]: Analyzing trace with hash 2025508539, now seen corresponding path program 1 times [2024-12-02 05:56:58,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:58,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592953288] [2024-12-02 05:56:58,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:58,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:58,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:58,309 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-12-02 05:56:58,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:58,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592953288] [2024-12-02 05:56:58,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592953288] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:56:58,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364591211] [2024-12-02 05:56:58,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:58,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:56:58,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:56:58,313 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:56:58,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 05:56:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:58,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 05:56:58,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:56:58,535 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-12-02 05:56:58,535 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:56:58,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364591211] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:58,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:56:58,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 05:56:58,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083599556] [2024-12-02 05:56:58,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:58,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 05:56:58,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:58,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 05:56:58,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 05:56:58,555 INFO L87 Difference]: Start difference. First operand has 95 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 82 states have internal predecessors, (116), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:56:58,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:58,576 INFO L93 Difference]: Finished difference Result 183 states and 281 transitions. [2024-12-02 05:56:58,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 05:56:58,578 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2024-12-02 05:56:58,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:58,582 INFO L225 Difference]: With dead ends: 183 [2024-12-02 05:56:58,582 INFO L226 Difference]: Without dead ends: 91 [2024-12-02 05:56:58,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 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 05:56:58,587 INFO L435 NwaCegarLoop]: 131 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, 131 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 05:56:58,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:56:58,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-12-02 05:56:58,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-12-02 05:56:58,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 78 states have internal predecessors, (109), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 05:56:58,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 131 transitions. [2024-12-02 05:56:58,618 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 131 transitions. Word has length 101 [2024-12-02 05:56:58,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:58,618 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 131 transitions. [2024-12-02 05:56:58,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:56:58,619 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 131 transitions. [2024-12-02 05:56:58,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 05:56:58,622 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:58,622 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:56:58,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 05:56:58,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 05:56:58,822 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:58,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:58,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1202698245, now seen corresponding path program 1 times [2024-12-02 05:56:58,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:58,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336290245] [2024-12-02 05:56:58,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:58,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:59,038 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:56:59,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:59,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336290245] [2024-12-02 05:56:59,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336290245] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:59,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:56:59,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:56:59,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198000516] [2024-12-02 05:56:59,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:59,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:56:59,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:59,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:56:59,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:56:59,041 INFO L87 Difference]: Start difference. First operand 91 states and 131 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:56:59,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:59,079 INFO L93 Difference]: Finished difference Result 181 states and 262 transitions. [2024-12-02 05:56:59,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:56:59,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2024-12-02 05:56:59,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:59,081 INFO L225 Difference]: With dead ends: 181 [2024-12-02 05:56:59,081 INFO L226 Difference]: Without dead ends: 93 [2024-12-02 05:56:59,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:56:59,083 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:59,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 376 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:56:59,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-12-02 05:56:59,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-12-02 05:56:59,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 80 states have (on average 1.3875) internal successors, (111), 80 states have internal predecessors, (111), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 05:56:59,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2024-12-02 05:56:59,093 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 101 [2024-12-02 05:56:59,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:59,094 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2024-12-02 05:56:59,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:56:59,094 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2024-12-02 05:56:59,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 05:56:59,096 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:59,096 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:56:59,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 05:56:59,096 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:59,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:59,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1213138105, now seen corresponding path program 1 times [2024-12-02 05:56:59,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:59,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211765659] [2024-12-02 05:56:59,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:59,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:59,315 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 05:56:59,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:56:59,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211765659] [2024-12-02 05:56:59,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211765659] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:56:59,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695970195] [2024-12-02 05:56:59,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:59,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:56:59,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:56:59,317 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:56:59,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 05:56:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:56:59,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 05:56:59,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:56:59,553 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:56:59,553 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:56:59,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695970195] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:56:59,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:56:59,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-12-02 05:56:59,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831709253] [2024-12-02 05:56:59,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:56:59,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:56:59,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:56:59,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:56:59,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:56:59,555 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:56:59,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:56:59,592 INFO L93 Difference]: Finished difference Result 186 states and 267 transitions. [2024-12-02 05:56:59,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:56:59,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2024-12-02 05:56:59,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:56:59,594 INFO L225 Difference]: With dead ends: 186 [2024-12-02 05:56:59,594 INFO L226 Difference]: Without dead ends: 96 [2024-12-02 05:56:59,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:56:59,596 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 1 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:56:59,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 375 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:56:59,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-12-02 05:56:59,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 95. [2024-12-02 05:56:59,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 82 states have (on average 1.3780487804878048) internal successors, (113), 82 states have internal predecessors, (113), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 05:56:59,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2024-12-02 05:56:59,606 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 135 transitions. Word has length 101 [2024-12-02 05:56:59,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:56:59,607 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 135 transitions. [2024-12-02 05:56:59,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:56:59,607 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 135 transitions. [2024-12-02 05:56:59,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 05:56:59,609 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:56:59,609 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:56:59,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 05:56:59,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-12-02 05:56:59,810 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:56:59,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:56:59,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1211291063, now seen corresponding path program 1 times [2024-12-02 05:56:59,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:56:59,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390778679] [2024-12-02 05:56:59,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:56:59,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:56:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:00,049 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 05:57:00,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:00,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390778679] [2024-12-02 05:57:00,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390778679] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:57:00,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964738322] [2024-12-02 05:57:00,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:00,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:57:00,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:57:00,052 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:57:00,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 05:57:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:00,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 05:57:00,246 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:00,269 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:00,269 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:57:00,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964738322] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:00,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:57:00,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-12-02 05:57:00,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117870792] [2024-12-02 05:57:00,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:00,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:57:00,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:00,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:57:00,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:57:00,271 INFO L87 Difference]: Start difference. First operand 95 states and 135 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:00,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:00,296 INFO L93 Difference]: Finished difference Result 189 states and 270 transitions. [2024-12-02 05:57:00,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:57:00,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2024-12-02 05:57:00,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:00,298 INFO L225 Difference]: With dead ends: 189 [2024-12-02 05:57:00,298 INFO L226 Difference]: Without dead ends: 97 [2024-12-02 05:57:00,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 05:57:00,299 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:00,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 376 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:57:00,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-12-02 05:57:00,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-12-02 05:57:00,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 84 states have (on average 1.369047619047619) internal successors, (115), 84 states have internal predecessors, (115), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 05:57:00,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 137 transitions. [2024-12-02 05:57:00,307 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 137 transitions. Word has length 101 [2024-12-02 05:57:00,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:00,308 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 137 transitions. [2024-12-02 05:57:00,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:00,308 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 137 transitions. [2024-12-02 05:57:00,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 05:57:00,309 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:00,309 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:00,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 05:57:00,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:57:00,510 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:00,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:00,511 INFO L85 PathProgramCache]: Analyzing trace with hash -2064880860, now seen corresponding path program 1 times [2024-12-02 05:57:00,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:00,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218192270] [2024-12-02 05:57:00,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:00,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:00,751 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:00,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:00,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218192270] [2024-12-02 05:57:00,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218192270] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:00,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:00,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:57:00,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554341820] [2024-12-02 05:57:00,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:00,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:57:00,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:00,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:57:00,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:57:00,753 INFO L87 Difference]: Start difference. First operand 97 states and 137 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:00,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:00,868 INFO L93 Difference]: Finished difference Result 275 states and 389 transitions. [2024-12-02 05:57:00,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:57:00,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-12-02 05:57:00,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:00,871 INFO L225 Difference]: With dead ends: 275 [2024-12-02 05:57:00,871 INFO L226 Difference]: Without dead ends: 181 [2024-12-02 05:57:00,871 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 05:57:00,872 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 111 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:00,872 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 747 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:57:00,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-12-02 05:57:00,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 99. [2024-12-02 05:57:00,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 86 states have (on average 1.3604651162790697) internal successors, (117), 86 states have internal predecessors, (117), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 05:57:00,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 139 transitions. [2024-12-02 05:57:00,882 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 139 transitions. Word has length 103 [2024-12-02 05:57:00,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:00,882 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 139 transitions. [2024-12-02 05:57:00,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:00,883 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 139 transitions. [2024-12-02 05:57:00,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 05:57:00,884 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:00,885 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:00,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 05:57:00,885 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:00,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:00,885 INFO L85 PathProgramCache]: Analyzing trace with hash 261437402, now seen corresponding path program 1 times [2024-12-02 05:57:00,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:00,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940790085] [2024-12-02 05:57:00,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:00,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:01,984 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:01,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:01,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940790085] [2024-12-02 05:57:01,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940790085] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:01,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:01,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 05:57:01,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262683511] [2024-12-02 05:57:01,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:01,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 05:57:01,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:01,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 05:57:01,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:57:01,986 INFO L87 Difference]: Start difference. First operand 99 states and 139 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:57:03,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:03,090 INFO L93 Difference]: Finished difference Result 658 states and 921 transitions. [2024-12-02 05:57:03,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-12-02 05:57:03,090 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2024-12-02 05:57:03,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:03,094 INFO L225 Difference]: With dead ends: 658 [2024-12-02 05:57:03,095 INFO L226 Difference]: Without dead ends: 562 [2024-12-02 05:57:03,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2024-12-02 05:57:03,096 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 869 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:03,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 1631 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 05:57:03,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-12-02 05:57:03,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 363. [2024-12-02 05:57:03,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 318 states have (on average 1.3742138364779874) internal successors, (437), 320 states have internal predecessors, (437), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 05:57:03,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 517 transitions. [2024-12-02 05:57:03,135 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 517 transitions. Word has length 104 [2024-12-02 05:57:03,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:03,136 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 517 transitions. [2024-12-02 05:57:03,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:57:03,136 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 517 transitions. [2024-12-02 05:57:03,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 05:57:03,137 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:03,137 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:03,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 05:57:03,138 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:03,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:03,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1039852224, now seen corresponding path program 1 times [2024-12-02 05:57:03,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:03,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014573344] [2024-12-02 05:57:03,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:03,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:03,989 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:03,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:03,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014573344] [2024-12-02 05:57:03,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014573344] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:03,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:03,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:57:03,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652665922] [2024-12-02 05:57:03,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:03,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:57:03,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:03,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:57:03,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:57:03,991 INFO L87 Difference]: Start difference. First operand 363 states and 517 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 05:57:04,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:04,594 INFO L93 Difference]: Finished difference Result 1015 states and 1440 transitions. [2024-12-02 05:57:04,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 05:57:04,595 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 105 [2024-12-02 05:57:04,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:04,601 INFO L225 Difference]: With dead ends: 1015 [2024-12-02 05:57:04,601 INFO L226 Difference]: Without dead ends: 655 [2024-12-02 05:57:04,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-12-02 05:57:04,602 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 201 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:04,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 868 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 05:57:04,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-12-02 05:57:04,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 363. [2024-12-02 05:57:04,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 318 states have (on average 1.3742138364779874) internal successors, (437), 320 states have internal predecessors, (437), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 05:57:04,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 517 transitions. [2024-12-02 05:57:04,633 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 517 transitions. Word has length 105 [2024-12-02 05:57:04,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:04,634 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 517 transitions. [2024-12-02 05:57:04,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 05:57:04,634 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 517 transitions. [2024-12-02 05:57:04,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 05:57:04,635 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:04,635 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:04,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 05:57:04,635 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:04,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:04,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1245149780, now seen corresponding path program 1 times [2024-12-02 05:57:04,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:04,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702739448] [2024-12-02 05:57:04,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:04,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:04,814 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:04,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:04,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702739448] [2024-12-02 05:57:04,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702739448] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:04,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:04,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 05:57:04,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502005129] [2024-12-02 05:57:04,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:04,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:57:04,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:04,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:57:04,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:57:04,816 INFO L87 Difference]: Start difference. First operand 363 states and 517 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:04,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:04,989 INFO L93 Difference]: Finished difference Result 1041 states and 1477 transitions. [2024-12-02 05:57:04,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:57:04,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-12-02 05:57:04,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:04,992 INFO L225 Difference]: With dead ends: 1041 [2024-12-02 05:57:04,992 INFO L226 Difference]: Without dead ends: 681 [2024-12-02 05:57:04,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 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 05:57:04,993 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 88 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:04,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 687 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:57:04,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-12-02 05:57:05,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 675. [2024-12-02 05:57:05,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 606 states have (on average 1.3762376237623761) internal successors, (834), 612 states have internal predecessors, (834), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 54 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 05:57:05,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 954 transitions. [2024-12-02 05:57:05,035 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 954 transitions. Word has length 106 [2024-12-02 05:57:05,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:05,035 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 954 transitions. [2024-12-02 05:57:05,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:05,036 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 954 transitions. [2024-12-02 05:57:05,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 05:57:05,037 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:05,037 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:05,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 05:57:05,037 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:05,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:05,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1694498068, now seen corresponding path program 1 times [2024-12-02 05:57:05,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:05,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198237214] [2024-12-02 05:57:05,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:05,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:05,210 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:05,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:05,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198237214] [2024-12-02 05:57:05,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198237214] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:05,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:05,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:57:05,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466779581] [2024-12-02 05:57:05,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:05,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:57:05,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:05,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:57:05,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:57:05,212 INFO L87 Difference]: Start difference. First operand 675 states and 954 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:05,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:05,384 INFO L93 Difference]: Finished difference Result 1875 states and 2640 transitions. [2024-12-02 05:57:05,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:57:05,385 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-12-02 05:57:05,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:05,391 INFO L225 Difference]: With dead ends: 1875 [2024-12-02 05:57:05,391 INFO L226 Difference]: Without dead ends: 1203 [2024-12-02 05:57:05,392 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 05:57:05,393 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 120 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:05,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 508 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:57:05,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2024-12-02 05:57:05,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 659. [2024-12-02 05:57:05,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 590 states have (on average 1.352542372881356) internal successors, (798), 596 states have internal predecessors, (798), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 54 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 05:57:05,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 918 transitions. [2024-12-02 05:57:05,472 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 918 transitions. Word has length 106 [2024-12-02 05:57:05,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:05,473 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 918 transitions. [2024-12-02 05:57:05,473 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:05,473 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 918 transitions. [2024-12-02 05:57:05,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 05:57:05,475 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:05,475 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:05,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 05:57:05,475 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:05,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:05,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1144390814, now seen corresponding path program 1 times [2024-12-02 05:57:05,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:05,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126835479] [2024-12-02 05:57:05,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:05,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:05,631 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:05,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:05,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126835479] [2024-12-02 05:57:05,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126835479] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:05,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:05,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:57:05,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291533255] [2024-12-02 05:57:05,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:05,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:57:05,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:05,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:57:05,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:57:05,632 INFO L87 Difference]: Start difference. First operand 659 states and 918 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:05,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:05,700 INFO L93 Difference]: Finished difference Result 1251 states and 1745 transitions. [2024-12-02 05:57:05,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:57:05,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-12-02 05:57:05,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:05,704 INFO L225 Difference]: With dead ends: 1251 [2024-12-02 05:57:05,704 INFO L226 Difference]: Without dead ends: 595 [2024-12-02 05:57:05,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:57:05,706 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 347 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 05:57:05,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 347 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:57:05,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-12-02 05:57:05,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 591. [2024-12-02 05:57:05,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 522 states have (on average 1.3371647509578544) internal successors, (698), 528 states have internal predecessors, (698), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 54 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 05:57:05,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 818 transitions. [2024-12-02 05:57:05,762 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 818 transitions. Word has length 106 [2024-12-02 05:57:05,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:05,763 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 818 transitions. [2024-12-02 05:57:05,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:05,763 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 818 transitions. [2024-12-02 05:57:05,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 05:57:05,764 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:05,765 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:05,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 05:57:05,765 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:05,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:05,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1335213979, now seen corresponding path program 1 times [2024-12-02 05:57:05,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:05,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135738047] [2024-12-02 05:57:05,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:05,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:05,885 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:05,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:05,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135738047] [2024-12-02 05:57:05,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135738047] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:05,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:05,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:57:05,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781688771] [2024-12-02 05:57:05,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:05,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:57:05,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:05,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:57:05,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:57:05,887 INFO L87 Difference]: Start difference. First operand 591 states and 818 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:06,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:06,054 INFO L93 Difference]: Finished difference Result 1473 states and 2028 transitions. [2024-12-02 05:57:06,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:57:06,054 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-12-02 05:57:06,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:06,058 INFO L225 Difference]: With dead ends: 1473 [2024-12-02 05:57:06,058 INFO L226 Difference]: Without dead ends: 885 [2024-12-02 05:57:06,059 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 05:57:06,060 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 41 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:06,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 360 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:57:06,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2024-12-02 05:57:06,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 695. [2024-12-02 05:57:06,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 626 states have (on average 1.329073482428115) internal successors, (832), 632 states have internal predecessors, (832), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 54 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 05:57:06,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 952 transitions. [2024-12-02 05:57:06,132 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 952 transitions. Word has length 107 [2024-12-02 05:57:06,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:06,132 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 952 transitions. [2024-12-02 05:57:06,132 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:06,133 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 952 transitions. [2024-12-02 05:57:06,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 05:57:06,134 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:06,134 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:06,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 05:57:06,134 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:06,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:06,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1922019993, now seen corresponding path program 1 times [2024-12-02 05:57:06,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:06,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583695593] [2024-12-02 05:57:06,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:06,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:06,372 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 05:57:06,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:06,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583695593] [2024-12-02 05:57:06,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583695593] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:57:06,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890923651] [2024-12-02 05:57:06,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:06,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:57:06,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:57:06,375 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:57:06,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 05:57:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:06,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 05:57:06,569 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:06,611 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 05:57:07,074 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:07,074 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 36 treesize of output 25 [2024-12-02 05:57:07,107 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:07,107 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 32 treesize of output 12 [2024-12-02 05:57:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-12-02 05:57:07,127 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:57:07,398 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 05:57:07,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890923651] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 05:57:07,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 05:57:07,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 18 [2024-12-02 05:57:07,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836458151] [2024-12-02 05:57:07,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 05:57:07,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 05:57:07,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:07,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 05:57:07,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-12-02 05:57:07,401 INFO L87 Difference]: Start difference. First operand 695 states and 952 transitions. Second operand has 18 states, 15 states have (on average 7.4) internal successors, (111), 18 states have internal predecessors, (111), 7 states have call successors, (23), 3 states have call predecessors, (23), 6 states have return successors, (23), 4 states have call predecessors, (23), 7 states have call successors, (23) [2024-12-02 05:57:07,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:07,943 INFO L93 Difference]: Finished difference Result 1240 states and 1696 transitions. [2024-12-02 05:57:07,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 05:57:07,944 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 7.4) internal successors, (111), 18 states have internal predecessors, (111), 7 states have call successors, (23), 3 states have call predecessors, (23), 6 states have return successors, (23), 4 states have call predecessors, (23), 7 states have call successors, (23) Word has length 107 [2024-12-02 05:57:07,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:07,947 INFO L225 Difference]: With dead ends: 1240 [2024-12-02 05:57:07,947 INFO L226 Difference]: Without dead ends: 548 [2024-12-02 05:57:07,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 202 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=219, Invalid=837, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 05:57:07,949 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 357 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:07,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 1031 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:57:07,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-12-02 05:57:07,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 203. [2024-12-02 05:57:07,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 181 states have (on average 1.281767955801105) internal successors, (232), 182 states have internal predecessors, (232), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 05:57:07,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 264 transitions. [2024-12-02 05:57:07,980 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 264 transitions. Word has length 107 [2024-12-02 05:57:07,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:07,980 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 264 transitions. [2024-12-02 05:57:07,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 7.4) internal successors, (111), 18 states have internal predecessors, (111), 7 states have call successors, (23), 3 states have call predecessors, (23), 6 states have return successors, (23), 4 states have call predecessors, (23), 7 states have call successors, (23) [2024-12-02 05:57:07,980 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 264 transitions. [2024-12-02 05:57:07,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 05:57:07,981 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:07,981 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:07,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 05:57:08,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 05:57:08,182 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:08,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:08,182 INFO L85 PathProgramCache]: Analyzing trace with hash -2122612556, now seen corresponding path program 1 times [2024-12-02 05:57:08,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:08,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156004390] [2024-12-02 05:57:08,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:08,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 05:57:08,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1575515837] [2024-12-02 05:57:08,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:08,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:57:08,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:57:08,242 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:57:08,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 05:57:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:08,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 05:57:08,447 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:08,453 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 05:57:08,457 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 05:57:08,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-12-02 05:57:08,582 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 25 treesize of output 13 [2024-12-02 05:57:08,635 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:08,635 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:57:08,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:08,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156004390] [2024-12-02 05:57:08,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 05:57:08,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575515837] [2024-12-02 05:57:08,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575515837] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:08,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:08,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 05:57:08,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072234151] [2024-12-02 05:57:08,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:08,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 05:57:08,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:08,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 05:57:08,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:57:08,637 INFO L87 Difference]: Start difference. First operand 203 states and 264 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:09,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:09,016 INFO L93 Difference]: Finished difference Result 482 states and 627 transitions. [2024-12-02 05:57:09,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 05:57:09,016 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-12-02 05:57:09,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:09,018 INFO L225 Difference]: With dead ends: 482 [2024-12-02 05:57:09,018 INFO L226 Difference]: Without dead ends: 282 [2024-12-02 05:57:09,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:57:09,019 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 40 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:09,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 900 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:57:09,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-12-02 05:57:09,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 237. [2024-12-02 05:57:09,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 215 states have (on average 1.2744186046511627) internal successors, (274), 216 states have internal predecessors, (274), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 05:57:09,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 306 transitions. [2024-12-02 05:57:09,045 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 306 transitions. Word has length 110 [2024-12-02 05:57:09,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:09,046 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 306 transitions. [2024-12-02 05:57:09,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:09,046 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 306 transitions. [2024-12-02 05:57:09,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 05:57:09,047 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:09,047 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:09,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 05:57:09,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:57:09,248 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:09,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:09,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1372957360, now seen corresponding path program 1 times [2024-12-02 05:57:09,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:09,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311753732] [2024-12-02 05:57:09,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:09,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 05:57:09,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [252652693] [2024-12-02 05:57:09,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:09,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:57:09,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:57:09,303 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:57:09,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 05:57:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:09,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 05:57:09,525 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:09,532 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 05:57:09,536 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 05:57:09,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:09,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 24 [2024-12-02 05:57:09,642 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:09,643 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 34 treesize of output 14 [2024-12-02 05:57:09,676 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:09,676 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:57:09,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:09,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311753732] [2024-12-02 05:57:09,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 05:57:09,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252652693] [2024-12-02 05:57:09,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252652693] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:09,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:09,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 05:57:09,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593148630] [2024-12-02 05:57:09,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:09,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 05:57:09,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:09,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 05:57:09,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:57:09,678 INFO L87 Difference]: Start difference. First operand 237 states and 306 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:10,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:10,049 INFO L93 Difference]: Finished difference Result 558 states and 725 transitions. [2024-12-02 05:57:10,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 05:57:10,050 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-12-02 05:57:10,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:10,051 INFO L225 Difference]: With dead ends: 558 [2024-12-02 05:57:10,051 INFO L226 Difference]: Without dead ends: 324 [2024-12-02 05:57:10,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:57:10,052 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 45 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:10,053 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 873 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:57:10,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-12-02 05:57:10,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 265. [2024-12-02 05:57:10,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 243 states have (on average 1.2757201646090535) internal successors, (310), 244 states have internal predecessors, (310), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 05:57:10,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 342 transitions. [2024-12-02 05:57:10,078 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 342 transitions. Word has length 110 [2024-12-02 05:57:10,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:10,078 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 342 transitions. [2024-12-02 05:57:10,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:10,078 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 342 transitions. [2024-12-02 05:57:10,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 05:57:10,079 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:10,079 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:10,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 05:57:10,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 05:57:10,280 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:10,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:10,280 INFO L85 PathProgramCache]: Analyzing trace with hash 786151346, now seen corresponding path program 1 times [2024-12-02 05:57:10,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:10,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218867277] [2024-12-02 05:57:10,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:10,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:10,500 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:10,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:10,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218867277] [2024-12-02 05:57:10,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218867277] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:10,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:10,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:57:10,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692223485] [2024-12-02 05:57:10,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:10,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:57:10,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:10,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:57:10,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:57:10,502 INFO L87 Difference]: Start difference. First operand 265 states and 342 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:10,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:10,642 INFO L93 Difference]: Finished difference Result 582 states and 753 transitions. [2024-12-02 05:57:10,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:57:10,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-12-02 05:57:10,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:10,644 INFO L225 Difference]: With dead ends: 582 [2024-12-02 05:57:10,644 INFO L226 Difference]: Without dead ends: 320 [2024-12-02 05:57:10,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 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 05:57:10,645 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 39 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:10,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 471 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:57:10,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-12-02 05:57:10,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 265. [2024-12-02 05:57:10,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 243 states have (on average 1.2592592592592593) internal successors, (306), 244 states have internal predecessors, (306), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 05:57:10,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 338 transitions. [2024-12-02 05:57:10,660 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 338 transitions. Word has length 110 [2024-12-02 05:57:10,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:10,661 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 338 transitions. [2024-12-02 05:57:10,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:10,661 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 338 transitions. [2024-12-02 05:57:10,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 05:57:10,661 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:10,662 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:10,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 05:57:10,662 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:10,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:10,662 INFO L85 PathProgramCache]: Analyzing trace with hash -2042884438, now seen corresponding path program 1 times [2024-12-02 05:57:10,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:10,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201701749] [2024-12-02 05:57:10,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:10,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 05:57:10,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [796100811] [2024-12-02 05:57:10,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:10,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:57:10,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:57:10,696 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:57:10,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 05:57:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:10,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 05:57:10,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:10,957 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 05:57:10,961 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 05:57:11,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2024-12-02 05:57:11,070 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 05:57:11,114 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:11,114 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:57:11,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:11,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201701749] [2024-12-02 05:57:11,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 05:57:11,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796100811] [2024-12-02 05:57:11,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796100811] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:11,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:11,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 05:57:11,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838458362] [2024-12-02 05:57:11,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:11,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 05:57:11,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:11,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 05:57:11,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:57:11,116 INFO L87 Difference]: Start difference. First operand 265 states and 338 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:11,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:11,396 INFO L93 Difference]: Finished difference Result 568 states and 724 transitions. [2024-12-02 05:57:11,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 05:57:11,396 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-12-02 05:57:11,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:11,398 INFO L225 Difference]: With dead ends: 568 [2024-12-02 05:57:11,398 INFO L226 Difference]: Without dead ends: 306 [2024-12-02 05:57:11,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:57:11,399 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 41 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:11,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 574 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:57:11,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-12-02 05:57:11,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 281. [2024-12-02 05:57:11,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 259 states have (on average 1.2548262548262548) internal successors, (325), 260 states have internal predecessors, (325), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 05:57:11,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 357 transitions. [2024-12-02 05:57:11,423 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 357 transitions. Word has length 111 [2024-12-02 05:57:11,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:11,423 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 357 transitions. [2024-12-02 05:57:11,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:11,423 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 357 transitions. [2024-12-02 05:57:11,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 05:57:11,425 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:11,425 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:11,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 05:57:11,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 05:57:11,625 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:11,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:11,626 INFO L85 PathProgramCache]: Analyzing trace with hash -820772203, now seen corresponding path program 1 times [2024-12-02 05:57:11,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:11,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611775467] [2024-12-02 05:57:11,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:11,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:12,294 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:12,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:12,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611775467] [2024-12-02 05:57:12,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611775467] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:12,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:12,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:57:12,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784588597] [2024-12-02 05:57:12,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:12,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:57:12,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:12,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:57:12,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:57:12,296 INFO L87 Difference]: Start difference. First operand 281 states and 357 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:57:12,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:12,397 INFO L93 Difference]: Finished difference Result 289 states and 366 transitions. [2024-12-02 05:57:12,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:57:12,397 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-12-02 05:57:12,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:12,399 INFO L225 Difference]: With dead ends: 289 [2024-12-02 05:57:12,399 INFO L226 Difference]: Without dead ends: 287 [2024-12-02 05:57:12,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:57:12,400 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 26 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:12,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 694 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:57:12,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-12-02 05:57:12,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2024-12-02 05:57:12,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 265 states have (on average 1.2490566037735849) internal successors, (331), 266 states have internal predecessors, (331), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 05:57:12,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 363 transitions. [2024-12-02 05:57:12,423 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 363 transitions. Word has length 111 [2024-12-02 05:57:12,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:12,423 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 363 transitions. [2024-12-02 05:57:12,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:57:12,424 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 363 transitions. [2024-12-02 05:57:12,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 05:57:12,425 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:12,425 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:12,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 05:57:12,425 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:12,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:12,425 INFO L85 PathProgramCache]: Analyzing trace with hash -818925161, now seen corresponding path program 1 times [2024-12-02 05:57:12,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:12,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784724545] [2024-12-02 05:57:12,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:12,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:12,575 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 05:57:12,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:12,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784724545] [2024-12-02 05:57:12,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784724545] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:57:12,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338866766] [2024-12-02 05:57:12,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:12,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:57:12,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:57:12,578 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:57:12,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 05:57:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:12,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 05:57:12,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:12,822 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:12,822 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:57:12,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338866766] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:12,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:57:12,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-12-02 05:57:12,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055075888] [2024-12-02 05:57:12,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:12,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:57:12,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:12,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:57:12,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:57:12,824 INFO L87 Difference]: Start difference. First operand 287 states and 363 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:12,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:12,873 INFO L93 Difference]: Finished difference Result 577 states and 731 transitions. [2024-12-02 05:57:12,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:57:12,874 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-12-02 05:57:12,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:12,875 INFO L225 Difference]: With dead ends: 577 [2024-12-02 05:57:12,875 INFO L226 Difference]: Without dead ends: 293 [2024-12-02 05:57:12,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:57:12,876 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:12,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 453 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:57:12,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-12-02 05:57:12,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-12-02 05:57:12,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 271 states have (on average 1.2435424354243543) internal successors, (337), 272 states have internal predecessors, (337), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 05:57:12,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 369 transitions. [2024-12-02 05:57:12,911 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 369 transitions. Word has length 111 [2024-12-02 05:57:12,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:12,911 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 369 transitions. [2024-12-02 05:57:12,911 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:12,911 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 369 transitions. [2024-12-02 05:57:12,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 05:57:12,913 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:12,913 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:12,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-12-02 05:57:13,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 05:57:13,113 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:13,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:13,114 INFO L85 PathProgramCache]: Analyzing trace with hash -873593326, now seen corresponding path program 1 times [2024-12-02 05:57:13,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:13,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996583006] [2024-12-02 05:57:13,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:13,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:13,330 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:13,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:13,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996583006] [2024-12-02 05:57:13,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996583006] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:13,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:13,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:57:13,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802077603] [2024-12-02 05:57:13,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:13,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:57:13,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:13,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:57:13,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:57:13,331 INFO L87 Difference]: Start difference. First operand 293 states and 369 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:13,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:13,456 INFO L93 Difference]: Finished difference Result 652 states and 819 transitions. [2024-12-02 05:57:13,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:57:13,457 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-12-02 05:57:13,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:13,459 INFO L225 Difference]: With dead ends: 652 [2024-12-02 05:57:13,459 INFO L226 Difference]: Without dead ends: 362 [2024-12-02 05:57:13,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 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 05:57:13,460 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 34 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:13,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 369 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:57:13,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-12-02 05:57:13,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 308. [2024-12-02 05:57:13,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 286 states have (on average 1.2272727272727273) internal successors, (351), 287 states have internal predecessors, (351), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 05:57:13,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 383 transitions. [2024-12-02 05:57:13,483 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 383 transitions. Word has length 111 [2024-12-02 05:57:13,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:13,484 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 383 transitions. [2024-12-02 05:57:13,484 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:13,484 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 383 transitions. [2024-12-02 05:57:13,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 05:57:13,485 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:13,485 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:13,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 05:57:13,485 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:13,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:13,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1801929114, now seen corresponding path program 1 times [2024-12-02 05:57:13,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:13,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202219129] [2024-12-02 05:57:13,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:13,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:13,633 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:13,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:13,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202219129] [2024-12-02 05:57:13,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202219129] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:13,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:13,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:57:13,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987993887] [2024-12-02 05:57:13,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:13,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:57:13,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:13,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:57:13,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:57:13,634 INFO L87 Difference]: Start difference. First operand 308 states and 383 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:13,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:13,775 INFO L93 Difference]: Finished difference Result 667 states and 829 transitions. [2024-12-02 05:57:13,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:57:13,775 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-12-02 05:57:13,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:13,777 INFO L225 Difference]: With dead ends: 667 [2024-12-02 05:57:13,777 INFO L226 Difference]: Without dead ends: 362 [2024-12-02 05:57:13,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 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 05:57:13,778 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 33 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:13,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 467 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 05:57:13,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-12-02 05:57:13,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 308. [2024-12-02 05:57:13,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 286 states have (on average 1.2202797202797202) internal successors, (349), 287 states have internal predecessors, (349), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 05:57:13,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 381 transitions. [2024-12-02 05:57:13,796 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 381 transitions. Word has length 111 [2024-12-02 05:57:13,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:13,797 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 381 transitions. [2024-12-02 05:57:13,797 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:13,797 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 381 transitions. [2024-12-02 05:57:13,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 05:57:13,797 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:13,798 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:13,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 05:57:13,798 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:13,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:13,798 INFO L85 PathProgramCache]: Analyzing trace with hash -785653014, now seen corresponding path program 1 times [2024-12-02 05:57:13,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:13,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95612177] [2024-12-02 05:57:13,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:13,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 05:57:13,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [208389600] [2024-12-02 05:57:13,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:13,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:57:13,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:57:13,831 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:57:13,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 05:57:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:14,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-02 05:57:14,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:14,089 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 05:57:14,096 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 05:57:14,154 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:14,154 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 39 treesize of output 26 [2024-12-02 05:57:14,195 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:14,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 16 [2024-12-02 05:57:14,231 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:14,231 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:57:14,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:57:14,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95612177] [2024-12-02 05:57:14,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 05:57:14,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208389600] [2024-12-02 05:57:14,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208389600] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:14,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:14,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 05:57:14,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846610346] [2024-12-02 05:57:14,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:14,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 05:57:14,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:57:14,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 05:57:14,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:57:14,232 INFO L87 Difference]: Start difference. First operand 308 states and 381 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:14,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:14,515 INFO L93 Difference]: Finished difference Result 636 states and 786 transitions. [2024-12-02 05:57:14,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 05:57:14,516 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 111 [2024-12-02 05:57:14,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:14,518 INFO L225 Difference]: With dead ends: 636 [2024-12-02 05:57:14,518 INFO L226 Difference]: Without dead ends: 331 [2024-12-02 05:57:14,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:57:14,519 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 29 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:14,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 737 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:57:14,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-12-02 05:57:14,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 306. [2024-12-02 05:57:14,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 284 states have (on average 1.221830985915493) internal successors, (347), 285 states have internal predecessors, (347), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 05:57:14,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 379 transitions. [2024-12-02 05:57:14,533 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 379 transitions. Word has length 111 [2024-12-02 05:57:14,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:14,534 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 379 transitions. [2024-12-02 05:57:14,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:14,534 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 379 transitions. [2024-12-02 05:57:14,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 05:57:14,534 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:14,535 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:14,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 05:57:14,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-12-02 05:57:14,735 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:14,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:14,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1636201285, now seen corresponding path program 1 times [2024-12-02 05:57:14,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:57:14,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095362612] [2024-12-02 05:57:14,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:14,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:57:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 05:57:14,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1255654988] [2024-12-02 05:57:14,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:14,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:57:14,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:57:14,776 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:57:14,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 05:57:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:57:15,026 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 05:57:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:57:15,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 05:57:15,217 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 05:57:15,218 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 05:57:15,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 05:57:15,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-02 05:57:15,421 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:15,488 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 05:57:15,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:57:15 BoogieIcfgContainer [2024-12-02 05:57:15,490 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 05:57:15,491 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 05:57:15,491 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 05:57:15,491 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 05:57:15,492 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:56:57" (3/4) ... [2024-12-02 05:57:15,494 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 05:57:15,494 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 05:57:15,495 INFO L158 Benchmark]: Toolchain (without parser) took 18450.56ms. Allocated memory was 117.4MB in the beginning and 335.5MB in the end (delta: 218.1MB). Free memory was 92.3MB in the beginning and 219.3MB in the end (delta: -127.0MB). Peak memory consumption was 87.3MB. Max. memory is 16.1GB. [2024-12-02 05:57:15,495 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 72.4MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 05:57:15,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.87ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 77.7MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 05:57:15,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.50ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 74.6MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 05:57:15,496 INFO L158 Benchmark]: Boogie Preprocessor took 61.62ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 70.5MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 05:57:15,496 INFO L158 Benchmark]: RCFGBuilder took 555.49ms. Allocated memory is still 117.4MB. Free memory was 70.5MB in the beginning and 42.1MB in the end (delta: 28.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 05:57:15,496 INFO L158 Benchmark]: TraceAbstraction took 17522.44ms. Allocated memory was 117.4MB in the beginning and 335.5MB in the end (delta: 218.1MB). Free memory was 41.5MB in the beginning and 220.1MB in the end (delta: -178.6MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2024-12-02 05:57:15,496 INFO L158 Benchmark]: Witness Printer took 3.34ms. Allocated memory is still 335.5MB. Free memory was 220.1MB in the beginning and 219.3MB in the end (delta: 831.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 05:57:15,498 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 117.4MB. Free memory was 72.4MB in the beginning and 72.4MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 258.87ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 77.7MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.50ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 74.6MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 61.62ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 70.5MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 555.49ms. Allocated memory is still 117.4MB. Free memory was 70.5MB in the beginning and 42.1MB in the end (delta: 28.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 17522.44ms. Allocated memory was 117.4MB in the beginning and 335.5MB in the end (delta: 218.1MB). Free memory was 41.5MB in the beginning and 220.1MB in the end (delta: -178.6MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * Witness Printer took 3.34ms. Allocated memory is still 335.5MB. Free memory was 220.1MB in the beginning and 219.3MB in the end (delta: 831.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someBinaryDOUBLEComparisonOperation at line 76, overapproximation of someBinaryDOUBLEComparisonOperation at line 76, overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of someBinaryDOUBLEComparisonOperation at line 55, overapproximation of someBinaryDOUBLEComparisonOperation at line 95, overapproximation of someBinaryDOUBLEComparisonOperation at line 78, overapproximation of someBinaryDOUBLEComparisonOperation at line 78. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L25-L27] double double_Array_0[2] = { 1.6, 32.5 }; [L25-L27] double double_Array_0[2] = { 1.6, 32.5 }; [L25-L27] double double_Array_0[2] = { 1.6, 32.5 }; [L28-L30] float float_Array_0[1] = { 15.5 }; [L28-L30] float float_Array_0[1] = { 15.5 }; [L31-L33] signed char signed_char_Array_0[2][2] = { {64, 0}, {64, -16} }; [L31-L33] signed char signed_char_Array_0[2][2] = { {64, 0}, {64, -16} }; [L31-L33] signed char signed_char_Array_0[2][2] = { {64, 0}, {64, -16} }; [L31-L33] signed char signed_char_Array_0[2][2] = { {64, 0}, {64, -16} }; [L31-L33] signed char signed_char_Array_0[2][2] = { {64, 0}, {64, -16} }; [L34-L36] signed long int signed_long_int_Array_0[1] = { -64 }; [L34-L36] signed long int signed_long_int_Array_0[1] = { -64 }; [L37-L39] unsigned short int unsigned_short_int_Array_0[1] = { 32 }; [L37-L39] unsigned short int unsigned_short_int_Array_0[1] = { 32 }; [L40] unsigned short int last_1_unsigned_short_int_Array_0_0_ = 32; VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=0, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L99] isInitial = 1 [L100] FCALL initially() [L102] CALL updateLastVariables() [L92] EXPR unsigned_short_int_Array_0[0] [L92] last_1_unsigned_short_int_Array_0_0_ = unsigned_short_int_Array_0[0] [L102] RET updateLastVariables() [L103] CALL updateVariables() [L72] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L73] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L73] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L73] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L74] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L74] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L74] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L75] double_Array_0[0] = __VERIFIER_nondet_double() [L76] EXPR double_Array_0[0] [L76] EXPR double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] EXPR double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F [L76] EXPR double_Array_0[0] [L76] EXPR double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] EXPR (double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+12F && double_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] EXPR (double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+12F && double_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] CALL assume_abort_if_not((double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] RET assume_abort_if_not((double_Array_0[0] >= -922337.2036854776000e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854776000e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L77] double_Array_0[1] = __VERIFIER_nondet_double() [L78] EXPR double_Array_0[1] [L78] EXPR double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] EXPR double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F [L78] EXPR double_Array_0[1] [L78] EXPR double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] EXPR (double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854776000e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] EXPR (double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854776000e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] CALL assume_abort_if_not((double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854776000e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] RET assume_abort_if_not((double_Array_0[1] >= -922337.2036854776000e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854776000e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L79] float_Array_0[0] = __VERIFIER_nondet_float() [L80] EXPR float_Array_0[0] [L80] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F [L80] EXPR float_Array_0[0] [L80] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] 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 [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] 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 [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] 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 [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] 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 [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L81] signed_char_Array_0[0][0] = __VERIFIER_nondet_char() [L82] EXPR signed_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] CALL assume_abort_if_not(signed_char_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] RET assume_abort_if_not(signed_char_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] EXPR signed_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] CALL assume_abort_if_not(signed_char_Array_0[0][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] RET assume_abort_if_not(signed_char_Array_0[0][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L84] signed_char_Array_0[1][0] = __VERIFIER_nondet_char() [L85] EXPR signed_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L85] CALL assume_abort_if_not(signed_char_Array_0[1][0] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L85] RET assume_abort_if_not(signed_char_Array_0[1][0] >= -1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L86] EXPR signed_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L86] CALL assume_abort_if_not(signed_char_Array_0[1][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L86] RET assume_abort_if_not(signed_char_Array_0[1][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L87] signed_char_Array_0[0][1] = __VERIFIER_nondet_char() [L88] EXPR signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L88] CALL assume_abort_if_not(signed_char_Array_0[0][1] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L88] RET assume_abort_if_not(signed_char_Array_0[0][1] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] CALL assume_abort_if_not(signed_char_Array_0[0][1] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] RET assume_abort_if_not(signed_char_Array_0[0][1] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L103] RET updateVariables() [L104] CALL step() [L44] EXPR signed_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L44] EXPR ((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_) [L44] EXPR ((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L44] signed long int stepLocal_0 = (((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_)); [L45] EXPR signed_char_Array_0[1][0] [L45] EXPR signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L45] EXPR last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, stepLocal_0=32, unsigned_short_int_Array_0={9:0}] [L45] COND TRUE stepLocal_0 <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1])) [L46] EXPR double_Array_0[1] [L46] EXPR double_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L46] COND FALSE !((- double_Array_0[1]) >= double_Array_0[0]) [L49] EXPR signed_char_Array_0[0][0] [L49] signed_long_int_Array_0[0] = signed_char_Array_0[0][0] [L54] EXPR signed_char_Array_0[0][0] [L54] EXPR signed_long_int_Array_0[0] [L54] signed long int stepLocal_1 = signed_char_Array_0[0][0] + signed_long_int_Array_0[0]; [L55] EXPR float_Array_0[0] [L55] EXPR double_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L55] COND FALSE !(float_Array_0[0] < double_Array_0[0]) [L62] EXPR BOOL_unsigned_char_Array_0[1] [L62] BOOL_unsigned_char_Array_0[0] = BOOL_unsigned_char_Array_0[1] [L63] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L63] COND TRUE ! BOOL_unsigned_char_Array_0[0] [L64] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L64] COND TRUE ! BOOL_unsigned_char_Array_0[0] [L65] EXPR signed_char_Array_0[0][1] [L65] signed_char_Array_0[1][1] = (signed_char_Array_0[0][1] + -32) [L104] RET step() [L105] CALL, EXPR property() [L95] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1 [L95] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16)))))) [L95] EXPR signed_char_Array_0[1][1] [L95] EXPR signed_char_Array_0[0][1] [L95] EXPR (! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16)))))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) [L95] EXPR signed_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_) [L95] EXPR ((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR signed_char_Array_0[1][0] [L95] EXPR signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])) [L95] EXPR double_Array_0[1] [L95] EXPR double_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])) [L95] EXPR signed_long_int_Array_0[0] [L95] EXPR signed_char_Array_0[1][0] [L95] EXPR ((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])))) && ((float_Array_0[0] < double_Array_0[0]) ? (((signed_char_Array_0[0][0] + signed_long_int_Array_0[0]) <= (~ (signed_long_int_Array_0[0] % -32))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0]))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR (((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])))) && ((float_Array_0[0] < double_Array_0[0]) ? (((signed_char_Array_0[0][0] + signed_long_int_Array_0[0]) <= (~ (signed_long_int_Array_0[0] % -32))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0]))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])))) && ((float_Array_0[0] < double_Array_0[0]) ? (((signed_char_Array_0[0][0] + signed_long_int_Array_0[0]) <= (~ (signed_long_int_Array_0[0] % -32))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0]))) : 1)) && (BOOL_unsigned_char_Array_0[0] == ((unsigned char) BOOL_unsigned_char_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] EXPR ((((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])))) && ((float_Array_0[0] < double_Array_0[0]) ? (((signed_char_Array_0[0][0] + signed_long_int_Array_0[0]) <= (~ (signed_long_int_Array_0[0] % -32))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0]))) : 1)) && (BOOL_unsigned_char_Array_0[0] == ((unsigned char) BOOL_unsigned_char_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95-L96] return ((((! BOOL_unsigned_char_Array_0[0]) ? ((! BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[0][1] + -32))) : (signed_char_Array_0[1][1] == ((signed char) (signed_char_Array_0[1][0] - ((((signed_char_Array_0[0][0]) < (16)) ? (signed_char_Array_0[0][0]) : (16))))))) : 1) && ((((((signed_char_Array_0[0][0]) > (last_1_unsigned_short_int_Array_0_0_)) ? (signed_char_Array_0[0][0]) : (last_1_unsigned_short_int_Array_0_0_))) <= (signed_char_Array_0[1][0] * (last_1_unsigned_short_int_Array_0_0_ >> signed_char_Array_0[0][1]))) ? (((- double_Array_0[1]) >= double_Array_0[0]) ? (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[1][0])) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0]))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0][0])))) && ((float_Array_0[0] < double_Array_0[0]) ? (((signed_char_Array_0[0][0] + signed_long_int_Array_0[0]) <= (~ (signed_long_int_Array_0[0] % -32))) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0])) : (unsigned_short_int_Array_0[0] == ((unsigned short int) signed_char_Array_0[0][0]))) : 1)) && (BOOL_unsigned_char_Array_0[0] == ((unsigned char) BOOL_unsigned_char_Array_0[1])) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, last_1_unsigned_short_int_Array_0_0_=32, signed_char_Array_0={7:0}, signed_long_int_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.4s, OverallIterations: 22, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2079 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2075 mSDsluCounter, 12975 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10134 mSDsCounter, 230 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3540 IncrementalHoareTripleChecker+Invalid, 3770 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 230 mSolverCounterUnsat, 2841 mSDtfsCounter, 3540 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1246 GetRequests, 1074 SyntacticMatches, 2 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=695occurred in iteration=11, InterpolantAutomatonStates: 165, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 21 MinimizatonAttempts, 1980 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 3431 NumberOfCodeBlocks, 3431 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 2845 ConstructedInterpolants, 0 QuantifiedInterpolants, 8608 SizeOfPredicates, 22 NumberOfNonLiveVariables, 3569 ConjunctsInSsa, 133 ConjunctsInUnsatCore, 27 InterpolantComputations, 20 PerfectInterpolantSequences, 5749/5940 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 05:57:15,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/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_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/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_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/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_c572a13a-3b1a-40af-9814-f1bf78d01d15/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 9d5c0cca82b2b1013f4104737c9e937fc2a95196aace035533aadd05da24a612 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 05:57:17,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 05:57:17,559 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 05:57:17,566 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 05:57:17,566 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 05:57:17,590 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 05:57:17,590 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 05:57:17,590 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 05:57:17,591 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 05:57:17,591 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 05:57:17,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 05:57:17,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 05:57:17,591 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 05:57:17,592 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 05:57:17,592 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 05:57:17,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 05:57:17,592 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 05:57:17,592 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 05:57:17,592 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 05:57:17,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 05:57:17,592 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 05:57:17,592 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 05:57:17,592 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 05:57:17,592 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 05:57:17,592 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 05:57:17,593 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 05:57:17,593 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 05:57:17,593 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 05:57:17,593 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 05:57:17,593 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 05:57:17,593 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 05:57:17,594 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:57:17,594 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:57:17,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:57:17,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:57:17,594 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 05:57:17,594 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:57:17,594 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:57:17,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:57:17,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:57:17,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 05:57:17,594 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 05:57:17,594 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 05:57:17,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 05:57:17,595 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 05:57:17,595 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 05:57:17,595 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 05:57:17,595 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 05:57:17,595 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 05:57:17,595 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 05:57:17,595 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_c572a13a-3b1a-40af-9814-f1bf78d01d15/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 -> 9d5c0cca82b2b1013f4104737c9e937fc2a95196aace035533aadd05da24a612 [2024-12-02 05:57:17,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 05:57:17,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 05:57:17,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 05:57:17,852 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 05:57:17,852 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 05:57:17,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i [2024-12-02 05:57:20,541 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/data/6979bf8d0/e792eb5021ed49538b2c0579ebbfa76d/FLAG192dca529 [2024-12-02 05:57:20,712 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 05:57:20,712 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i [2024-12-02 05:57:20,720 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/data/6979bf8d0/e792eb5021ed49538b2c0579ebbfa76d/FLAG192dca529 [2024-12-02 05:57:20,734 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/data/6979bf8d0/e792eb5021ed49538b2c0579ebbfa76d [2024-12-02 05:57:20,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 05:57:20,737 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 05:57:20,738 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 05:57:20,738 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 05:57:20,742 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 05:57:20,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:57:20" (1/1) ... [2024-12-02 05:57:20,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14f8f5a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:57:20, skipping insertion in model container [2024-12-02 05:57:20,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:57:20" (1/1) ... [2024-12-02 05:57:20,758 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 05:57:20,891 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_c572a13a-3b1a-40af-9814-f1bf78d01d15/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i[916,929] [2024-12-02 05:57:20,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:57:20,964 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 05:57:20,976 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_c572a13a-3b1a-40af-9814-f1bf78d01d15/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-79.i[916,929] [2024-12-02 05:57:21,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:57:21,039 INFO L204 MainTranslator]: Completed translation [2024-12-02 05:57:21,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:57:21 WrapperNode [2024-12-02 05:57:21,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 05:57:21,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 05:57:21,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 05:57:21,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 05:57:21,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:57:21" (1/1) ... [2024-12-02 05:57:21,060 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:57:21" (1/1) ... [2024-12-02 05:57:21,089 INFO L138 Inliner]: procedures = 39, calls = 131, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 395 [2024-12-02 05:57:21,089 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 05:57:21,090 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 05:57:21,090 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 05:57:21,090 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 05:57:21,099 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:57:21" (1/1) ... [2024-12-02 05:57:21,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:57:21" (1/1) ... [2024-12-02 05:57:21,105 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:57:21" (1/1) ... [2024-12-02 05:57:21,125 INFO L175 MemorySlicer]: Split 103 memory accesses to 7 slices as follows [2, 13, 18, 8, 45, 11, 6]. 44 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 2, 2, 1, 4, 1, 1]. The 15 writes are split as follows [0, 2, 2, 1, 5, 3, 2]. [2024-12-02 05:57:21,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:57:21" (1/1) ... [2024-12-02 05:57:21,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:57:21" (1/1) ... [2024-12-02 05:57:21,149 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:57:21" (1/1) ... [2024-12-02 05:57:21,150 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:57:21" (1/1) ... [2024-12-02 05:57:21,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:57:21" (1/1) ... [2024-12-02 05:57:21,158 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:57:21" (1/1) ... [2024-12-02 05:57:21,161 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:57:21" (1/1) ... [2024-12-02 05:57:21,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 05:57:21,167 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 05:57:21,167 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 05:57:21,167 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 05:57:21,168 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:57:21" (1/1) ... [2024-12-02 05:57:21,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:57:21,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:57:21,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 05:57:21,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 05:57:21,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 05:57:21,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-12-02 05:57:21,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-12-02 05:57:21,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-12-02 05:57:21,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-12-02 05:57:21,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-12-02 05:57:21,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-12-02 05:57:21,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2024-12-02 05:57:21,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-12-02 05:57:21,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-12-02 05:57:21,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-12-02 05:57:21,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-12-02 05:57:21,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-12-02 05:57:21,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-12-02 05:57:21,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2024-12-02 05:57:21,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 05:57:21,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 05:57:21,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-12-02 05:57:21,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-12-02 05:57:21,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-12-02 05:57:21,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-12-02 05:57:21,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-12-02 05:57:21,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-12-02 05:57:21,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-12-02 05:57:21,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-12-02 05:57:21,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-12-02 05:57:21,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-12-02 05:57:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2024-12-02 05:57:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#6 [2024-12-02 05:57:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 05:57:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 05:57:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 05:57:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-12-02 05:57:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-12-02 05:57:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-12-02 05:57:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-12-02 05:57:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-12-02 05:57:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-12-02 05:57:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-12-02 05:57:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-12-02 05:57:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-12-02 05:57:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-12-02 05:57:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-12-02 05:57:21,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-02 05:57:21,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-02 05:57:21,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-12-02 05:57:21,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-12-02 05:57:21,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-12-02 05:57:21,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-12-02 05:57:21,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-12-02 05:57:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-12-02 05:57:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-12-02 05:57:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-12-02 05:57:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-12-02 05:57:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-12-02 05:57:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2024-12-02 05:57:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2024-12-02 05:57:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 05:57:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 05:57:21,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-12-02 05:57:21,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-12-02 05:57:21,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-12-02 05:57:21,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-12-02 05:57:21,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-12-02 05:57:21,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-12-02 05:57:21,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-12-02 05:57:21,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-12-02 05:57:21,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-12-02 05:57:21,225 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 05:57:21,225 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 05:57:21,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 05:57:21,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 05:57:21,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 05:57:21,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 05:57:21,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-12-02 05:57:21,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-12-02 05:57:21,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-12-02 05:57:21,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-12-02 05:57:21,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-12-02 05:57:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-12-02 05:57:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-12-02 05:57:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-12-02 05:57:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-12-02 05:57:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-12-02 05:57:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-12-02 05:57:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2024-12-02 05:57:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 05:57:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 05:57:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-12-02 05:57:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-12-02 05:57:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-12-02 05:57:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-12-02 05:57:21,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-12-02 05:57:21,399 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 05:57:21,401 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 05:57:22,078 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2024-12-02 05:57:22,078 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 05:57:22,089 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 05:57:22,089 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 05:57:22,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:57:22 BoogieIcfgContainer [2024-12-02 05:57:22,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 05:57:22,091 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 05:57:22,091 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 05:57:22,096 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 05:57:22,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:57:20" (1/3) ... [2024-12-02 05:57:22,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb6443b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:57:22, skipping insertion in model container [2024-12-02 05:57:22,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:57:21" (2/3) ... [2024-12-02 05:57:22,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb6443b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:57:22, skipping insertion in model container [2024-12-02 05:57:22,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:57:22" (3/3) ... [2024-12-02 05:57:22,098 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-79.i [2024-12-02 05:57:22,114 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 05:57:22,115 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-79.i that has 2 procedures, 91 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 05:57:22,171 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 05:57:22,182 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;@55175db9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 05:57:22,182 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 05:57:22,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 77 states have (on average 1.4285714285714286) internal successors, (110), 78 states have internal predecessors, (110), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 05:57:22,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 05:57:22,194 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:22,195 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:22,195 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:22,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:22,200 INFO L85 PathProgramCache]: Analyzing trace with hash 503815468, now seen corresponding path program 1 times [2024-12-02 05:57:22,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:22,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002862989] [2024-12-02 05:57:22,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:22,211 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 05:57:22,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:22,213 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:22,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:22,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 05:57:22,538 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:22,565 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-12-02 05:57:22,566 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:57:22,566 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:22,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002862989] [2024-12-02 05:57:22,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002862989] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:22,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:22,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 05:57:22,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397248918] [2024-12-02 05:57:22,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:22,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 05:57:22,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:22,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 05:57:22,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 05:57:22,588 INFO L87 Difference]: Start difference. First operand has 91 states, 77 states have (on average 1.4285714285714286) internal successors, (110), 78 states have internal predecessors, (110), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:57:22,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:22,611 INFO L93 Difference]: Finished difference Result 175 states and 269 transitions. [2024-12-02 05:57:22,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 05:57:22,613 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2024-12-02 05:57:22,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:22,618 INFO L225 Difference]: With dead ends: 175 [2024-12-02 05:57:22,618 INFO L226 Difference]: Without dead ends: 87 [2024-12-02 05:57:22,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 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 05:57:22,623 INFO L435 NwaCegarLoop]: 125 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, 125 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 05:57:22,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:57:22,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-12-02 05:57:22,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-12-02 05:57:22,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 74 states have internal predecessors, (103), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 05:57:22,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 125 transitions. [2024-12-02 05:57:22,656 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 125 transitions. Word has length 100 [2024-12-02 05:57:22,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:22,656 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 125 transitions. [2024-12-02 05:57:22,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:57:22,657 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 125 transitions. [2024-12-02 05:57:22,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 05:57:22,660 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:22,660 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:22,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:22,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:22,861 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:22,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:22,861 INFO L85 PathProgramCache]: Analyzing trace with hash 2139841186, now seen corresponding path program 1 times [2024-12-02 05:57:22,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:22,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082884003] [2024-12-02 05:57:22,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:22,862 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 05:57:22,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:22,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:22,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:23,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 05:57:23,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:23,187 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-12-02 05:57:23,187 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:57:23,188 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:23,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082884003] [2024-12-02 05:57:23,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1082884003] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:23,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:23,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:57:23,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782178276] [2024-12-02 05:57:23,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:23,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:57:23,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:23,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:57:23,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:57:23,190 INFO L87 Difference]: Start difference. First operand 87 states and 125 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:57:23,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:23,244 INFO L93 Difference]: Finished difference Result 173 states and 250 transitions. [2024-12-02 05:57:23,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:57:23,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2024-12-02 05:57:23,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:23,246 INFO L225 Difference]: With dead ends: 173 [2024-12-02 05:57:23,246 INFO L226 Difference]: Without dead ends: 89 [2024-12-02 05:57:23,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 97 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 05:57:23,248 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:23,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 358 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:57:23,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-12-02 05:57:23,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-12-02 05:57:23,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 76 states have (on average 1.381578947368421) internal successors, (105), 76 states have internal predecessors, (105), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 05:57:23,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2024-12-02 05:57:23,258 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 100 [2024-12-02 05:57:23,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:23,259 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2024-12-02 05:57:23,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:57:23,259 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2024-12-02 05:57:23,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-02 05:57:23,261 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:23,261 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:23,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:23,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:23,462 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:23,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:23,463 INFO L85 PathProgramCache]: Analyzing trace with hash 814984992, now seen corresponding path program 1 times [2024-12-02 05:57:23,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:23,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807509968] [2024-12-02 05:57:23,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:23,463 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 05:57:23,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:23,465 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:23,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:23,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 05:57:23,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:24,092 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 24 treesize of output 12 [2024-12-02 05:57:24,144 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-12-02 05:57:24,145 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:57:24,504 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 05:57:24,504 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:24,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807509968] [2024-12-02 05:57:24,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807509968] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 05:57:24,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 05:57:24,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-12-02 05:57:24,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44839481] [2024-12-02 05:57:24,505 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 05:57:24,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 05:57:24,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:24,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 05:57:24,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:57:24,507 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand has 11 states, 9 states have (on average 6.666666666666667) internal successors, (60), 11 states have internal predecessors, (60), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-12-02 05:57:24,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:24,841 INFO L93 Difference]: Finished difference Result 181 states and 256 transitions. [2024-12-02 05:57:24,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 05:57:24,842 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.666666666666667) internal successors, (60), 11 states have internal predecessors, (60), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 100 [2024-12-02 05:57:24,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:24,843 INFO L225 Difference]: With dead ends: 181 [2024-12-02 05:57:24,843 INFO L226 Difference]: Without dead ends: 95 [2024-12-02 05:57:24,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 188 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-12-02 05:57:24,845 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 142 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:24,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 496 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:57:24,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-12-02 05:57:24,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-12-02 05:57:24,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 79 states have (on average 1.3544303797468353) internal successors, (107), 79 states have internal predecessors, (107), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 05:57:24,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 129 transitions. [2024-12-02 05:57:24,856 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 129 transitions. Word has length 100 [2024-12-02 05:57:24,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:24,857 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 129 transitions. [2024-12-02 05:57:24,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.666666666666667) internal successors, (60), 11 states have internal predecessors, (60), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-12-02 05:57:24,857 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 129 transitions. [2024-12-02 05:57:24,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 05:57:24,859 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:24,859 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:24,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-12-02 05:57:25,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:25,060 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:25,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:25,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1041802097, now seen corresponding path program 1 times [2024-12-02 05:57:25,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:25,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1959272768] [2024-12-02 05:57:25,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:25,061 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 05:57:25,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:25,063 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:25,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:25,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 05:57:25,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:25,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-12-02 05:57:25,677 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:25,677 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 35 treesize of output 15 [2024-12-02 05:57:25,715 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-12-02 05:57:25,715 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:57:26,072 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 05:57:26,073 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:26,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1959272768] [2024-12-02 05:57:26,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1959272768] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 05:57:26,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 05:57:26,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-12-02 05:57:26,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672539152] [2024-12-02 05:57:26,073 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 05:57:26,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 05:57:26,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:26,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 05:57:26,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-02 05:57:26,075 INFO L87 Difference]: Start difference. First operand 93 states and 129 transitions. Second operand has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-12-02 05:57:26,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:26,550 INFO L93 Difference]: Finished difference Result 185 states and 257 transitions. [2024-12-02 05:57:26,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 05:57:26,551 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 101 [2024-12-02 05:57:26,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:26,552 INFO L225 Difference]: With dead ends: 185 [2024-12-02 05:57:26,552 INFO L226 Difference]: Without dead ends: 95 [2024-12-02 05:57:26,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2024-12-02 05:57:26,553 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 212 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:26,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 534 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:57:26,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-12-02 05:57:26,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-12-02 05:57:26,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 79 states have (on average 1.3417721518987342) internal successors, (106), 79 states have internal predecessors, (106), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 05:57:26,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 128 transitions. [2024-12-02 05:57:26,564 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 128 transitions. Word has length 101 [2024-12-02 05:57:26,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:26,564 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 128 transitions. [2024-12-02 05:57:26,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 13 states have internal predecessors, (64), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-12-02 05:57:26,564 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 128 transitions. [2024-12-02 05:57:26,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 05:57:26,566 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:26,566 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:26,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:26,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:26,766 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:26,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:26,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1690934070, now seen corresponding path program 1 times [2024-12-02 05:57:26,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:26,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1245080038] [2024-12-02 05:57:26,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:26,768 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 05:57:26,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:26,769 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:26,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:26,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 05:57:26,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:27,012 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:27,012 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:57:27,012 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:27,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1245080038] [2024-12-02 05:57:27,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1245080038] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:27,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:27,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:57:27,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153689839] [2024-12-02 05:57:27,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:27,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:57:27,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:27,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:57:27,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:57:27,013 INFO L87 Difference]: Start difference. First operand 93 states and 128 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:27,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:27,048 INFO L93 Difference]: Finished difference Result 188 states and 260 transitions. [2024-12-02 05:57:27,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:57:27,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-12-02 05:57:27,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:27,050 INFO L225 Difference]: With dead ends: 188 [2024-12-02 05:57:27,050 INFO L226 Difference]: Without dead ends: 98 [2024-12-02 05:57:27,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:57:27,052 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 1 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:27,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 459 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:57:27,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-12-02 05:57:27,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2024-12-02 05:57:27,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 83 states have (on average 1.3253012048192772) internal successors, (110), 83 states have internal predecessors, (110), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 05:57:27,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 132 transitions. [2024-12-02 05:57:27,062 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 132 transitions. Word has length 103 [2024-12-02 05:57:27,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:27,062 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 132 transitions. [2024-12-02 05:57:27,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:27,063 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 132 transitions. [2024-12-02 05:57:27,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 05:57:27,064 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:27,064 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:27,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:27,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:27,265 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:27,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:27,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1689087028, now seen corresponding path program 1 times [2024-12-02 05:57:27,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:27,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232789975] [2024-12-02 05:57:27,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:27,266 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 05:57:27,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:27,267 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:27,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:27,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 05:57:27,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:27,583 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 19 treesize of output 1 [2024-12-02 05:57:27,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 35 [2024-12-02 05:57:27,844 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:27,845 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 100 treesize of output 52 [2024-12-02 05:57:27,908 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-12-02 05:57:27,908 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:57:27,908 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:27,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232789975] [2024-12-02 05:57:27,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [232789975] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:27,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:27,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 05:57:27,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120876807] [2024-12-02 05:57:27,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:27,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 05:57:27,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:27,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 05:57:27,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-12-02 05:57:27,909 INFO L87 Difference]: Start difference. First operand 97 states and 132 transitions. Second operand has 14 states, 12 states have (on average 4.75) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 05:57:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:29,374 INFO L93 Difference]: Finished difference Result 283 states and 378 transitions. [2024-12-02 05:57:29,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 05:57:29,375 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.75) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 103 [2024-12-02 05:57:29,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:29,377 INFO L225 Difference]: With dead ends: 283 [2024-12-02 05:57:29,377 INFO L226 Difference]: Without dead ends: 189 [2024-12-02 05:57:29,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2024-12-02 05:57:29,379 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 221 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:29,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 1002 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 05:57:29,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-12-02 05:57:29,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 111. [2024-12-02 05:57:29,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 95 states have (on average 1.2947368421052632) internal successors, (123), 95 states have internal predecessors, (123), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 05:57:29,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 145 transitions. [2024-12-02 05:57:29,388 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 145 transitions. Word has length 103 [2024-12-02 05:57:29,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:29,388 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 145 transitions. [2024-12-02 05:57:29,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.75) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 05:57:29,389 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 145 transitions. [2024-12-02 05:57:29,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 05:57:29,389 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:29,390 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:29,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:29,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:29,590 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:29,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:29,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1223090714, now seen corresponding path program 1 times [2024-12-02 05:57:29,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:29,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251085475] [2024-12-02 05:57:29,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:29,591 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 05:57:29,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:29,593 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:29,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:29,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 05:57:29,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:30,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-12-02 05:57:30,057 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:30,057 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 35 treesize of output 15 [2024-12-02 05:57:30,082 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-12-02 05:57:30,082 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:57:30,334 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 05:57:30,335 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:30,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251085475] [2024-12-02 05:57:30,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251085475] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 05:57:30,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 05:57:30,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-12-02 05:57:30,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816373429] [2024-12-02 05:57:30,335 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 05:57:30,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 05:57:30,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:30,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 05:57:30,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-02 05:57:30,337 INFO L87 Difference]: Start difference. First operand 111 states and 145 transitions. Second operand has 13 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 13 states have internal predecessors, (69), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-12-02 05:57:30,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:30,676 INFO L93 Difference]: Finished difference Result 219 states and 286 transitions. [2024-12-02 05:57:30,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 05:57:30,677 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 13 states have internal predecessors, (69), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 105 [2024-12-02 05:57:30,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:30,678 INFO L225 Difference]: With dead ends: 219 [2024-12-02 05:57:30,678 INFO L226 Difference]: Without dead ends: 111 [2024-12-02 05:57:30,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2024-12-02 05:57:30,679 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 344 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:30,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 508 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:57:30,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-12-02 05:57:30,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2024-12-02 05:57:30,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 93 states have (on average 1.2688172043010753) internal successors, (118), 93 states have internal predecessors, (118), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 05:57:30,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 140 transitions. [2024-12-02 05:57:30,691 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 140 transitions. Word has length 105 [2024-12-02 05:57:30,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:30,691 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 140 transitions. [2024-12-02 05:57:30,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 13 states have internal predecessors, (69), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-12-02 05:57:30,692 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 140 transitions. [2024-12-02 05:57:30,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 05:57:30,692 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:30,692 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:30,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:30,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:30,893 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:30,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:30,893 INFO L85 PathProgramCache]: Analyzing trace with hash -752129614, now seen corresponding path program 1 times [2024-12-02 05:57:30,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:30,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774111429] [2024-12-02 05:57:30,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:30,894 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 05:57:30,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:30,895 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:30,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:31,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 05:57:31,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:31,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-12-02 05:57:31,371 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:31,371 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 35 treesize of output 15 [2024-12-02 05:57:31,399 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-12-02 05:57:31,399 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:57:31,673 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 05:57:31,673 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:31,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774111429] [2024-12-02 05:57:31,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774111429] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 05:57:31,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 05:57:31,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-12-02 05:57:31,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631977026] [2024-12-02 05:57:31,673 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 05:57:31,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 05:57:31,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:31,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 05:57:31,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-02 05:57:31,675 INFO L87 Difference]: Start difference. First operand 109 states and 140 transitions. Second operand has 13 states, 11 states have (on average 6.0) internal successors, (66), 13 states have internal predecessors, (66), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-12-02 05:57:32,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:32,060 INFO L93 Difference]: Finished difference Result 207 states and 267 transitions. [2024-12-02 05:57:32,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 05:57:32,061 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.0) internal successors, (66), 13 states have internal predecessors, (66), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 105 [2024-12-02 05:57:32,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:32,062 INFO L225 Difference]: With dead ends: 207 [2024-12-02 05:57:32,062 INFO L226 Difference]: Without dead ends: 101 [2024-12-02 05:57:32,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2024-12-02 05:57:32,062 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 192 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:32,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 484 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:57:32,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-12-02 05:57:32,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2024-12-02 05:57:32,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 83 states have (on average 1.2650602409638554) internal successors, (105), 83 states have internal predecessors, (105), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 05:57:32,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 127 transitions. [2024-12-02 05:57:32,069 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 127 transitions. Word has length 105 [2024-12-02 05:57:32,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:32,069 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 127 transitions. [2024-12-02 05:57:32,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.0) internal successors, (66), 13 states have internal predecessors, (66), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-12-02 05:57:32,069 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 127 transitions. [2024-12-02 05:57:32,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 05:57:32,070 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:32,070 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:32,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:32,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:32,271 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:32,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:32,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1310795771, now seen corresponding path program 1 times [2024-12-02 05:57:32,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:32,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123478142] [2024-12-02 05:57:32,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:32,272 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 05:57:32,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:32,273 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:32,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:32,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 05:57:32,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:32,560 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 05:57:32,563 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 05:57:32,567 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 05:57:32,571 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 17 treesize of output 13 [2024-12-02 05:57:32,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-12-02 05:57:32,639 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:32,639 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:57:32,639 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:32,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123478142] [2024-12-02 05:57:32,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123478142] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:32,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:32,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 05:57:32,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369448091] [2024-12-02 05:57:32,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:32,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:57:32,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:32,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:57:32,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 05:57:32,641 INFO L87 Difference]: Start difference. First operand 99 states and 127 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:32,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:32,980 INFO L93 Difference]: Finished difference Result 269 states and 347 transitions. [2024-12-02 05:57:32,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:57:32,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-12-02 05:57:32,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:32,982 INFO L225 Difference]: With dead ends: 269 [2024-12-02 05:57:32,982 INFO L226 Difference]: Without dead ends: 173 [2024-12-02 05:57:32,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 102 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 05:57:32,983 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 74 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:32,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 656 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:57:32,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-12-02 05:57:32,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 170. [2024-12-02 05:57:32,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 147 states have (on average 1.2789115646258504) internal successors, (188), 148 states have internal predecessors, (188), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 05:57:32,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 220 transitions. [2024-12-02 05:57:32,992 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 220 transitions. Word has length 107 [2024-12-02 05:57:32,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:32,992 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 220 transitions. [2024-12-02 05:57:32,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:32,992 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 220 transitions. [2024-12-02 05:57:32,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 05:57:32,993 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:32,993 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:33,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:33,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:33,194 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:33,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:33,194 INFO L85 PathProgramCache]: Analyzing trace with hash -764141453, now seen corresponding path program 1 times [2024-12-02 05:57:33,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:33,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955406888] [2024-12-02 05:57:33,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:33,195 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 05:57:33,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:33,196 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:33,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:33,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 05:57:33,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:33,493 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 17 treesize of output 9 [2024-12-02 05:57:33,549 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 05:57:33,648 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 24 treesize of output 23 [2024-12-02 05:57:33,798 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:33,798 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 39 treesize of output 26 [2024-12-02 05:57:34,088 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:34,088 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 50 treesize of output 33 [2024-12-02 05:57:34,167 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:34,167 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 39 treesize of output 21 [2024-12-02 05:57:34,212 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 136 proven. 15 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-12-02 05:57:34,212 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:57:34,368 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:34,369 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:34,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955406888] [2024-12-02 05:57:34,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955406888] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:57:34,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:57:34,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2024-12-02 05:57:34,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936607392] [2024-12-02 05:57:34,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:34,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:57:34,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:34,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:57:34,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-12-02 05:57:34,370 INFO L87 Difference]: Start difference. First operand 170 states and 220 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:34,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:34,682 INFO L93 Difference]: Finished difference Result 411 states and 532 transitions. [2024-12-02 05:57:34,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:57:34,683 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-12-02 05:57:34,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:34,685 INFO L225 Difference]: With dead ends: 411 [2024-12-02 05:57:34,685 INFO L226 Difference]: Without dead ends: 244 [2024-12-02 05:57:34,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-12-02 05:57:34,686 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 64 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:34,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 260 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 05:57:34,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-12-02 05:57:34,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 199. [2024-12-02 05:57:34,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 176 states have (on average 1.2670454545454546) internal successors, (223), 177 states have internal predecessors, (223), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 05:57:34,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 255 transitions. [2024-12-02 05:57:34,695 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 255 transitions. Word has length 108 [2024-12-02 05:57:34,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:34,696 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 255 transitions. [2024-12-02 05:57:34,696 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:34,696 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 255 transitions. [2024-12-02 05:57:34,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 05:57:34,696 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:34,697 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:34,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:34,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:34,897 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:34,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:34,897 INFO L85 PathProgramCache]: Analyzing trace with hash -505976015, now seen corresponding path program 1 times [2024-12-02 05:57:34,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:34,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746789032] [2024-12-02 05:57:34,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:34,898 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 05:57:34,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:34,900 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:34,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:35,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 05:57:35,197 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:35,208 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 17 treesize of output 9 [2024-12-02 05:57:35,281 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 05:57:35,363 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 05:57:35,713 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:35,713 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 36 [2024-12-02 05:57:36,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:36,039 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 56 treesize of output 26 [2024-12-02 05:57:36,133 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-12-02 05:57:36,133 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:57:36,133 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:36,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746789032] [2024-12-02 05:57:36,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746789032] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:36,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:36,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 05:57:36,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822338756] [2024-12-02 05:57:36,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:36,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:57:36,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:36,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:57:36,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:57:36,135 INFO L87 Difference]: Start difference. First operand 199 states and 255 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:57:38,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:38,695 INFO L93 Difference]: Finished difference Result 858 states and 1095 transitions. [2024-12-02 05:57:38,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 05:57:38,696 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-12-02 05:57:38,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:38,698 INFO L225 Difference]: With dead ends: 858 [2024-12-02 05:57:38,698 INFO L226 Difference]: Without dead ends: 662 [2024-12-02 05:57:38,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-12-02 05:57:38,699 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 360 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 88 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:38,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 790 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 05:57:38,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-12-02 05:57:38,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 541. [2024-12-02 05:57:38,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 480 states have (on average 1.25625) internal successors, (603), 484 states have internal predecessors, (603), 44 states have call successors, (44), 16 states have call predecessors, (44), 16 states have return successors, (44), 40 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 05:57:38,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 691 transitions. [2024-12-02 05:57:38,744 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 691 transitions. Word has length 108 [2024-12-02 05:57:38,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:38,745 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 691 transitions. [2024-12-02 05:57:38,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:57:38,745 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 691 transitions. [2024-12-02 05:57:38,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 05:57:38,746 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:38,746 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:38,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:38,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:38,947 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:38,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:38,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1607597809, now seen corresponding path program 1 times [2024-12-02 05:57:38,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:38,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510015913] [2024-12-02 05:57:38,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:38,948 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 05:57:38,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:38,949 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:38,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:39,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 05:57:39,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:39,290 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 17 treesize of output 9 [2024-12-02 05:57:39,366 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 05:57:39,466 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 24 treesize of output 23 [2024-12-02 05:57:39,596 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:39,596 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 39 treesize of output 26 [2024-12-02 05:57:40,084 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:40,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 49 [2024-12-02 05:57:40,563 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:40,563 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 80 treesize of output 38 [2024-12-02 05:57:42,023 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 136 proven. 15 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-12-02 05:57:42,023 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:57:43,433 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:43,433 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:43,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510015913] [2024-12-02 05:57:43,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1510015913] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:57:43,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:57:43,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 21 [2024-12-02 05:57:43,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117644910] [2024-12-02 05:57:43,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:43,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:57:43,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:43,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:57:43,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2024-12-02 05:57:43,435 INFO L87 Difference]: Start difference. First operand 541 states and 691 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:46,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:46,179 INFO L93 Difference]: Finished difference Result 1237 states and 1586 transitions. [2024-12-02 05:57:46,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:57:46,182 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-12-02 05:57:46,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:46,185 INFO L225 Difference]: With dead ends: 1237 [2024-12-02 05:57:46,185 INFO L226 Difference]: Without dead ends: 699 [2024-12-02 05:57:46,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2024-12-02 05:57:46,186 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 138 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:46,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 620 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 05:57:46,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-12-02 05:57:46,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 570. [2024-12-02 05:57:46,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 509 states have (on average 1.2514734774066798) internal successors, (637), 513 states have internal predecessors, (637), 44 states have call successors, (44), 16 states have call predecessors, (44), 16 states have return successors, (44), 40 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 05:57:46,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 725 transitions. [2024-12-02 05:57:46,229 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 725 transitions. Word has length 108 [2024-12-02 05:57:46,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:46,229 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 725 transitions. [2024-12-02 05:57:46,229 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:46,229 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 725 transitions. [2024-12-02 05:57:46,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 05:57:46,230 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:46,231 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:46,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:46,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:46,431 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:46,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:46,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1865763247, now seen corresponding path program 1 times [2024-12-02 05:57:46,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:46,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486220343] [2024-12-02 05:57:46,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:46,432 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 05:57:46,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:46,434 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:46,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:46,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 05:57:46,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:46,760 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 17 treesize of output 9 [2024-12-02 05:57:46,846 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 05:57:46,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 05:57:47,022 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 24 treesize of output 23 [2024-12-02 05:57:47,617 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:47,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 50 [2024-12-02 05:57:47,980 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 144 proven. 15 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-12-02 05:57:47,980 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:57:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:49,982 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:49,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486220343] [2024-12-02 05:57:49,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486220343] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:57:49,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:57:49,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 21 [2024-12-02 05:57:49,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734943569] [2024-12-02 05:57:49,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:49,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 05:57:49,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:49,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 05:57:49,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2024-12-02 05:57:49,984 INFO L87 Difference]: Start difference. First operand 570 states and 725 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:52,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:52,989 INFO L93 Difference]: Finished difference Result 1253 states and 1598 transitions. [2024-12-02 05:57:52,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 05:57:52,991 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-12-02 05:57:52,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:52,993 INFO L225 Difference]: With dead ends: 1253 [2024-12-02 05:57:52,993 INFO L226 Difference]: Without dead ends: 686 [2024-12-02 05:57:52,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2024-12-02 05:57:52,994 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 229 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:52,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 688 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 05:57:52,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-12-02 05:57:53,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 557. [2024-12-02 05:57:53,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 496 states have (on average 1.2540322580645162) internal successors, (622), 500 states have internal predecessors, (622), 44 states have call successors, (44), 16 states have call predecessors, (44), 16 states have return successors, (44), 40 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 05:57:53,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 710 transitions. [2024-12-02 05:57:53,030 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 710 transitions. Word has length 108 [2024-12-02 05:57:53,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:53,031 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 710 transitions. [2024-12-02 05:57:53,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:53,031 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 710 transitions. [2024-12-02 05:57:53,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 05:57:53,032 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:53,032 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:53,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:53,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:53,233 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:53,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:53,233 INFO L85 PathProgramCache]: Analyzing trace with hash 694939198, now seen corresponding path program 1 times [2024-12-02 05:57:53,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:53,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670550298] [2024-12-02 05:57:53,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:53,233 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 05:57:53,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:53,235 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:53,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:53,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 05:57:53,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:53,537 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 17 treesize of output 9 [2024-12-02 05:57:53,612 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 05:57:53,694 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 05:57:54,046 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:54,046 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 56 treesize of output 37 [2024-12-02 05:57:54,324 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:54,324 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 57 treesize of output 27 [2024-12-02 05:57:54,420 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-12-02 05:57:54,420 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:57:54,421 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:54,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670550298] [2024-12-02 05:57:54,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670550298] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:54,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:54,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 05:57:54,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530556061] [2024-12-02 05:57:54,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:54,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:57:54,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:54,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:57:54,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:57:54,422 INFO L87 Difference]: Start difference. First operand 557 states and 710 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:57:57,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:57,027 INFO L93 Difference]: Finished difference Result 1306 states and 1653 transitions. [2024-12-02 05:57:57,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 05:57:57,027 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-12-02 05:57:57,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:57,030 INFO L225 Difference]: With dead ends: 1306 [2024-12-02 05:57:57,030 INFO L226 Difference]: Without dead ends: 752 [2024-12-02 05:57:57,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-12-02 05:57:57,032 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 354 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:57,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 826 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 05:57:57,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2024-12-02 05:57:57,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 629. [2024-12-02 05:57:57,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 558 states have (on average 1.2508960573476702) internal successors, (698), 563 states have internal predecessors, (698), 51 states have call successors, (51), 19 states have call predecessors, (51), 19 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 05:57:57,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 800 transitions. [2024-12-02 05:57:57,095 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 800 transitions. Word has length 109 [2024-12-02 05:57:57,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:57,096 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 800 transitions. [2024-12-02 05:57:57,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:57:57,096 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 800 transitions. [2024-12-02 05:57:57,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 05:57:57,096 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:57,097 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:57,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:57,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:57,297 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:57,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:57,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1917051433, now seen corresponding path program 1 times [2024-12-02 05:57:57,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:57,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887424633] [2024-12-02 05:57:57,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:57,298 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:57:57,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:57,299 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:57,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:57,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 05:57:57,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:57,601 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 05:57:57,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-12-02 05:57:57,901 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:57,901 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 68 treesize of output 32 [2024-12-02 05:57:57,936 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-12-02 05:57:57,936 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:57:58,073 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:58,073 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:58,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887424633] [2024-12-02 05:57:58,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887424633] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:57:58,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:57:58,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13 [2024-12-02 05:57:58,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671965311] [2024-12-02 05:57:58,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:58,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 05:57:58,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:58,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 05:57:58,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-12-02 05:57:58,075 INFO L87 Difference]: Start difference. First operand 629 states and 800 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:58,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:58,186 INFO L93 Difference]: Finished difference Result 652 states and 829 transitions. [2024-12-02 05:57:58,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 05:57:58,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-12-02 05:57:58,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:58,189 INFO L225 Difference]: With dead ends: 652 [2024-12-02 05:57:58,189 INFO L226 Difference]: Without dead ends: 650 [2024-12-02 05:57:58,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-12-02 05:57:58,189 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 24 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:58,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 492 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:57:58,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-12-02 05:57:58,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2024-12-02 05:57:58,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 579 states have (on average 1.241796200345423) internal successors, (719), 584 states have internal predecessors, (719), 51 states have call successors, (51), 19 states have call predecessors, (51), 19 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 05:57:58,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 821 transitions. [2024-12-02 05:57:58,246 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 821 transitions. Word has length 109 [2024-12-02 05:57:58,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:58,247 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 821 transitions. [2024-12-02 05:57:58,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:58,247 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 821 transitions. [2024-12-02 05:57:58,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 05:57:58,248 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:58,248 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:58,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:58,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:58,449 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:58,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:58,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1918898475, now seen corresponding path program 1 times [2024-12-02 05:57:58,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:58,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191175400] [2024-12-02 05:57:58,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:58,449 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 05:57:58,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:58,451 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:58,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:58,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 05:57:58,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:58,686 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:57:58,686 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:57:58,686 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:57:58,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191175400] [2024-12-02 05:57:58,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191175400] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:57:58,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:57:58,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:57:58,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987169916] [2024-12-02 05:57:58,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:57:58,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:57:58,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:57:58,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:57:58,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:57:58,688 INFO L87 Difference]: Start difference. First operand 650 states and 821 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:58,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:57:58,745 INFO L93 Difference]: Finished difference Result 1318 states and 1667 transitions. [2024-12-02 05:57:58,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:57:58,745 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-12-02 05:57:58,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:57:58,747 INFO L225 Difference]: With dead ends: 1318 [2024-12-02 05:57:58,747 INFO L226 Difference]: Without dead ends: 671 [2024-12-02 05:57:58,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:57:58,748 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:57:58,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 429 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:57:58,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2024-12-02 05:57:58,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 671. [2024-12-02 05:57:58,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 600 states have (on average 1.2333333333333334) internal successors, (740), 605 states have internal predecessors, (740), 51 states have call successors, (51), 19 states have call predecessors, (51), 19 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 05:57:58,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 842 transitions. [2024-12-02 05:57:58,800 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 842 transitions. Word has length 109 [2024-12-02 05:57:58,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:57:58,801 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 842 transitions. [2024-12-02 05:57:58,801 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:57:58,801 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 842 transitions. [2024-12-02 05:57:58,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 05:57:58,802 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:57:58,802 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:57:58,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:59,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:59,002 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:57:59,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:57:59,003 INFO L85 PathProgramCache]: Analyzing trace with hash -2079437758, now seen corresponding path program 1 times [2024-12-02 05:57:59,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:57:59,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660617632] [2024-12-02 05:57:59,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:57:59,003 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 05:57:59,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:57:59,005 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:59,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:57:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:57:59,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 05:57:59,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:57:59,374 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 17 treesize of output 9 [2024-12-02 05:57:59,443 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 05:57:59,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 05:57:59,761 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:57:59,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 05:58:00,251 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:58:00,251 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 71 treesize of output 51 [2024-12-02 05:58:00,757 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:58:00,757 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 82 treesize of output 40 [2024-12-02 05:58:07,980 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 141 proven. 21 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-02 05:58:07,980 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:58:09,810 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:58:09,810 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:58:09,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [660617632] [2024-12-02 05:58:09,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [660617632] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:58:09,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:58:09,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 24 [2024-12-02 05:58:09,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787655265] [2024-12-02 05:58:09,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:09,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:58:09,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:58:09,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:58:09,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-12-02 05:58:09,811 INFO L87 Difference]: Start difference. First operand 671 states and 842 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:58:12,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:12,416 INFO L93 Difference]: Finished difference Result 1421 states and 1782 transitions. [2024-12-02 05:58:12,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:58:12,419 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-12-02 05:58:12,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:12,421 INFO L225 Difference]: With dead ends: 1421 [2024-12-02 05:58:12,422 INFO L226 Difference]: Without dead ends: 753 [2024-12-02 05:58:12,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=123, Invalid=579, Unknown=0, NotChecked=0, Total=702 [2024-12-02 05:58:12,423 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 77 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:12,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 532 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 05:58:12,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-12-02 05:58:12,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 673. [2024-12-02 05:58:12,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 602 states have (on average 1.2325581395348837) internal successors, (742), 607 states have internal predecessors, (742), 51 states have call successors, (51), 19 states have call predecessors, (51), 19 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 05:58:12,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 844 transitions. [2024-12-02 05:58:12,486 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 844 transitions. Word has length 109 [2024-12-02 05:58:12,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:12,487 INFO L471 AbstractCegarLoop]: Abstraction has 673 states and 844 transitions. [2024-12-02 05:58:12,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:58:12,487 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 844 transitions. [2024-12-02 05:58:12,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 05:58:12,488 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:12,488 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:12,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:12,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:12,688 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:12,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:12,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1204412288, now seen corresponding path program 1 times [2024-12-02 05:58:12,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:58:12,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078160814] [2024-12-02 05:58:12,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:12,689 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 05:58:12,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:58:12,691 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:12,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:13,033 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 05:58:13,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:58:13,047 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 17 treesize of output 9 [2024-12-02 05:58:13,108 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 05:58:13,192 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 24 treesize of output 23 [2024-12-02 05:58:13,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:58:13,323 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 39 treesize of output 26 [2024-12-02 05:58:13,590 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:58:13,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 05:58:13,642 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:58:13,642 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 29 treesize of output 15 [2024-12-02 05:58:13,674 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 136 proven. 15 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-12-02 05:58:13,674 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:58:13,806 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:58:13,807 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:58:13,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078160814] [2024-12-02 05:58:13,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1078160814] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:58:13,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:58:13,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2024-12-02 05:58:13,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140228355] [2024-12-02 05:58:13,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:13,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:58:13,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:58:13,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:58:13,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-12-02 05:58:13,808 INFO L87 Difference]: Start difference. First operand 673 states and 844 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:58:14,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:14,234 INFO L93 Difference]: Finished difference Result 1401 states and 1753 transitions. [2024-12-02 05:58:14,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:58:14,235 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-12-02 05:58:14,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:14,238 INFO L225 Difference]: With dead ends: 1401 [2024-12-02 05:58:14,238 INFO L226 Difference]: Without dead ends: 731 [2024-12-02 05:58:14,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-12-02 05:58:14,240 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 35 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:14,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 417 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 05:58:14,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2024-12-02 05:58:14,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 671. [2024-12-02 05:58:14,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 600 states have (on average 1.2216666666666667) internal successors, (733), 605 states have internal predecessors, (733), 51 states have call successors, (51), 19 states have call predecessors, (51), 19 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 05:58:14,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 835 transitions. [2024-12-02 05:58:14,302 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 835 transitions. Word has length 109 [2024-12-02 05:58:14,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:14,302 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 835 transitions. [2024-12-02 05:58:14,303 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:58:14,303 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 835 transitions. [2024-12-02 05:58:14,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 05:58:14,304 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:14,304 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:14,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:14,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:14,504 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:14,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:14,505 INFO L85 PathProgramCache]: Analyzing trace with hash -454907722, now seen corresponding path program 1 times [2024-12-02 05:58:14,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:58:14,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485643104] [2024-12-02 05:58:14,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:14,505 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 05:58:14,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:58:14,507 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:14,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:14,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 05:58:14,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:58:14,806 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 05:58:14,808 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 05:58:14,878 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 15 [2024-12-02 05:58:14,934 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:58:14,934 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 45 treesize of output 32 [2024-12-02 05:58:15,041 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-12-02 05:58:15,041 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:58:15,041 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:58:15,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485643104] [2024-12-02 05:58:15,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485643104] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:15,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:15,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:58:15,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918254626] [2024-12-02 05:58:15,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:15,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:58:15,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:58:15,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:58:15,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:58:15,043 INFO L87 Difference]: Start difference. First operand 671 states and 835 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:58:15,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:15,977 INFO L93 Difference]: Finished difference Result 1411 states and 1757 transitions. [2024-12-02 05:58:15,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:58:15,978 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-12-02 05:58:15,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:15,979 INFO L225 Difference]: With dead ends: 1411 [2024-12-02 05:58:15,979 INFO L226 Difference]: Without dead ends: 743 [2024-12-02 05:58:15,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-12-02 05:58:15,980 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 173 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:15,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 783 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 05:58:15,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2024-12-02 05:58:16,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 630. [2024-12-02 05:58:16,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 562 states have (on average 1.209964412811388) internal successors, (680), 566 states have internal predecessors, (680), 48 states have call successors, (48), 19 states have call predecessors, (48), 19 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 05:58:16,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 776 transitions. [2024-12-02 05:58:16,041 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 776 transitions. Word has length 110 [2024-12-02 05:58:16,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:16,042 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 776 transitions. [2024-12-02 05:58:16,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:58:16,042 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 776 transitions. [2024-12-02 05:58:16,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 05:58:16,043 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:16,043 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:16,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:16,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:16,243 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:16,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:16,244 INFO L85 PathProgramCache]: Analyzing trace with hash 246156856, now seen corresponding path program 1 times [2024-12-02 05:58:16,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:58:16,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353150905] [2024-12-02 05:58:16,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:16,244 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 05:58:16,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:58:16,246 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:16,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:16,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 05:58:16,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:58:17,659 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:58:17,659 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 303 treesize of output 99 [2024-12-02 05:58:17,764 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-12-02 05:58:17,764 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:58:18,201 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:58:18,201 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:58:18,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353150905] [2024-12-02 05:58:18,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353150905] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:58:18,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:58:18,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-12-02 05:58:18,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777980671] [2024-12-02 05:58:18,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:18,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:58:18,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:58:18,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:58:18,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 05:58:18,202 INFO L87 Difference]: Start difference. First operand 630 states and 776 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:58:18,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:18,666 INFO L93 Difference]: Finished difference Result 1257 states and 1547 transitions. [2024-12-02 05:58:18,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:58:18,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-12-02 05:58:18,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:18,671 INFO L225 Difference]: With dead ends: 1257 [2024-12-02 05:58:18,671 INFO L226 Difference]: Without dead ends: 630 [2024-12-02 05:58:18,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-12-02 05:58:18,672 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 35 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:18,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 495 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 05:58:18,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-12-02 05:58:18,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 618. [2024-12-02 05:58:18,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 550 states have (on average 1.2072727272727273) internal successors, (664), 554 states have internal predecessors, (664), 48 states have call successors, (48), 19 states have call predecessors, (48), 19 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 05:58:18,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 760 transitions. [2024-12-02 05:58:18,737 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 760 transitions. Word has length 110 [2024-12-02 05:58:18,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:18,737 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 760 transitions. [2024-12-02 05:58:18,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:58:18,737 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 760 transitions. [2024-12-02 05:58:18,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 05:58:18,738 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:18,738 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:18,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:18,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:18,939 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:18,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:18,939 INFO L85 PathProgramCache]: Analyzing trace with hash -392868108, now seen corresponding path program 1 times [2024-12-02 05:58:18,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:58:18,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552784396] [2024-12-02 05:58:18,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:18,940 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 05:58:18,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:58:18,943 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:18,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:19,258 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 05:58:19,262 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:58:20,379 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:58:20,379 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 304 treesize of output 100 [2024-12-02 05:58:20,489 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-12-02 05:58:20,490 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:58:20,930 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:58:20,930 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:58:20,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552784396] [2024-12-02 05:58:20,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552784396] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:58:20,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:58:20,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-12-02 05:58:20,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272944412] [2024-12-02 05:58:20,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:20,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:58:20,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:58:20,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:58:20,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 05:58:20,932 INFO L87 Difference]: Start difference. First operand 618 states and 760 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:58:21,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:21,254 INFO L93 Difference]: Finished difference Result 1304 states and 1600 transitions. [2024-12-02 05:58:21,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:58:21,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-12-02 05:58:21,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:21,257 INFO L225 Difference]: With dead ends: 1304 [2024-12-02 05:58:21,257 INFO L226 Difference]: Without dead ends: 689 [2024-12-02 05:58:21,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-12-02 05:58:21,258 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 72 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:21,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 369 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:58:21,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-12-02 05:58:21,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 619. [2024-12-02 05:58:21,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 551 states have (on average 1.2032667876588021) internal successors, (663), 555 states have internal predecessors, (663), 48 states have call successors, (48), 19 states have call predecessors, (48), 19 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 05:58:21,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 759 transitions. [2024-12-02 05:58:21,299 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 759 transitions. Word has length 110 [2024-12-02 05:58:21,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:21,299 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 759 transitions. [2024-12-02 05:58:21,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:58:21,299 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 759 transitions. [2024-12-02 05:58:21,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 05:58:21,300 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:21,300 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:21,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:21,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:21,500 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:21,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:21,501 INFO L85 PathProgramCache]: Analyzing trace with hash 308196470, now seen corresponding path program 1 times [2024-12-02 05:58:21,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:58:21,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2051339133] [2024-12-02 05:58:21,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:21,501 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 05:58:21,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:58:21,503 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:21,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:21,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:21,815 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 05:58:21,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:58:21,821 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 05:58:21,823 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 05:58:21,826 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 05:58:21,880 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 17 treesize of output 13 [2024-12-02 05:58:21,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:58:21,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 30 [2024-12-02 05:58:22,053 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-12-02 05:58:22,053 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:58:22,053 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:58:22,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2051339133] [2024-12-02 05:58:22,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2051339133] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:22,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:22,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 05:58:22,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549677941] [2024-12-02 05:58:22,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:22,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 05:58:22,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:58:22,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 05:58:22,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 05:58:22,055 INFO L87 Difference]: Start difference. First operand 619 states and 759 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:58:22,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:22,848 INFO L93 Difference]: Finished difference Result 1238 states and 1518 transitions. [2024-12-02 05:58:22,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 05:58:22,849 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-12-02 05:58:22,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:22,850 INFO L225 Difference]: With dead ends: 1238 [2024-12-02 05:58:22,850 INFO L226 Difference]: Without dead ends: 622 [2024-12-02 05:58:22,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-12-02 05:58:22,852 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 191 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:22,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 685 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 05:58:22,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2024-12-02 05:58:22,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 613. [2024-12-02 05:58:22,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 545 states have (on average 1.201834862385321) internal successors, (655), 549 states have internal predecessors, (655), 48 states have call successors, (48), 19 states have call predecessors, (48), 19 states have return successors, (48), 44 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 05:58:22,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 751 transitions. [2024-12-02 05:58:22,901 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 751 transitions. Word has length 110 [2024-12-02 05:58:22,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:22,901 INFO L471 AbstractCegarLoop]: Abstraction has 613 states and 751 transitions. [2024-12-02 05:58:22,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:58:22,902 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 751 transitions. [2024-12-02 05:58:22,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 05:58:22,902 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:22,902 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:22,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:23,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:23,103 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:23,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:23,103 INFO L85 PathProgramCache]: Analyzing trace with hash -90570928, now seen corresponding path program 1 times [2024-12-02 05:58:23,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:58:23,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21275132] [2024-12-02 05:58:23,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:23,103 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 05:58:23,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:58:23,105 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:23,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:23,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 05:58:23,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:58:29,491 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 136 treesize of output 88 [2024-12-02 05:58:29,507 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:58:29,507 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 100 treesize of output 40 [2024-12-02 05:58:30,479 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-12-02 05:58:30,479 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:58:30,479 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:58:30,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [21275132] [2024-12-02 05:58:30,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [21275132] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:30,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:30,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 05:58:30,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433005361] [2024-12-02 05:58:30,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:30,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 05:58:30,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:58:30,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 05:58:30,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 05:58:30,481 INFO L87 Difference]: Start difference. First operand 613 states and 751 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:58:39,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:39,305 INFO L93 Difference]: Finished difference Result 1909 states and 2306 transitions. [2024-12-02 05:58:39,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 05:58:39,307 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-12-02 05:58:39,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:39,311 INFO L225 Difference]: With dead ends: 1909 [2024-12-02 05:58:39,311 INFO L226 Difference]: Without dead ends: 1299 [2024-12-02 05:58:39,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-12-02 05:58:39,312 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 246 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:39,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 719 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-12-02 05:58:39,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2024-12-02 05:58:39,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1250. [2024-12-02 05:58:39,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1115 states have (on average 1.1748878923766817) internal successors, (1310), 1129 states have internal predecessors, (1310), 96 states have call successors, (96), 38 states have call predecessors, (96), 38 states have return successors, (96), 82 states have call predecessors, (96), 96 states have call successors, (96) [2024-12-02 05:58:39,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1502 transitions. [2024-12-02 05:58:39,423 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1502 transitions. Word has length 111 [2024-12-02 05:58:39,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:39,424 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1502 transitions. [2024-12-02 05:58:39,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:58:39,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1502 transitions. [2024-12-02 05:58:39,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 05:58:39,425 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:39,425 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:39,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:39,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:39,626 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:39,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:39,626 INFO L85 PathProgramCache]: Analyzing trace with hash 2127059470, now seen corresponding path program 1 times [2024-12-02 05:58:39,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:58:39,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1633269918] [2024-12-02 05:58:39,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:39,627 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 05:58:39,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:58:39,628 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:39,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:39,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 05:58:39,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:58:39,892 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-12-02 05:58:39,892 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:58:39,893 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:58:39,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1633269918] [2024-12-02 05:58:39,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1633269918] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:39,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:39,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:58:39,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481574499] [2024-12-02 05:58:39,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:39,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:58:39,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:58:39,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:58:39,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:58:39,894 INFO L87 Difference]: Start difference. First operand 1250 states and 1502 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:58:40,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:40,002 INFO L93 Difference]: Finished difference Result 2497 states and 3001 transitions. [2024-12-02 05:58:40,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:58:40,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-12-02 05:58:40,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:40,005 INFO L225 Difference]: With dead ends: 2497 [2024-12-02 05:58:40,006 INFO L226 Difference]: Without dead ends: 1250 [2024-12-02 05:58:40,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 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 05:58:40,007 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 328 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 05:58:40,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 328 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:58:40,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-12-02 05:58:40,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2024-12-02 05:58:40,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1115 states have (on average 1.169506726457399) internal successors, (1304), 1129 states have internal predecessors, (1304), 96 states have call successors, (96), 38 states have call predecessors, (96), 38 states have return successors, (96), 82 states have call predecessors, (96), 96 states have call successors, (96) [2024-12-02 05:58:40,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1496 transitions. [2024-12-02 05:58:40,091 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1496 transitions. Word has length 111 [2024-12-02 05:58:40,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:40,092 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1496 transitions. [2024-12-02 05:58:40,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 05:58:40,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1496 transitions. [2024-12-02 05:58:40,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 05:58:40,093 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:40,093 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:40,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:40,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:40,293 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:40,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:40,294 INFO L85 PathProgramCache]: Analyzing trace with hash 909567505, now seen corresponding path program 1 times [2024-12-02 05:58:40,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:58:40,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942290519] [2024-12-02 05:58:40,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:40,294 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 05:58:40,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:58:40,296 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:40,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:40,572 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 05:58:40,575 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:58:40,579 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 17 treesize of output 13 [2024-12-02 05:58:40,639 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 42 [2024-12-02 05:58:40,645 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 05:58:40,843 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 64 treesize of output 44 [2024-12-02 05:58:41,285 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 53 treesize of output 41 [2024-12-02 05:58:41,291 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 52 treesize of output 40 [2024-12-02 05:58:41,445 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:58:41,445 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:58:41,445 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:58:41,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942290519] [2024-12-02 05:58:41,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942290519] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:41,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:41,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 05:58:41,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134872940] [2024-12-02 05:58:41,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:41,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 05:58:41,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:58:41,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 05:58:41,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-12-02 05:58:41,446 INFO L87 Difference]: Start difference. First operand 1250 states and 1496 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:58:45,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:45,338 INFO L93 Difference]: Finished difference Result 2147 states and 2552 transitions. [2024-12-02 05:58:45,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 05:58:45,339 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-12-02 05:58:45,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:45,348 INFO L225 Difference]: With dead ends: 2147 [2024-12-02 05:58:45,348 INFO L226 Difference]: Without dead ends: 1580 [2024-12-02 05:58:45,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2024-12-02 05:58:45,350 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 253 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:45,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 2233 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-12-02 05:58:45,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2024-12-02 05:58:45,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1388. [2024-12-02 05:58:45,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1253 states have (on average 1.1588188347964885) internal successors, (1452), 1267 states have internal predecessors, (1452), 96 states have call successors, (96), 38 states have call predecessors, (96), 38 states have return successors, (96), 82 states have call predecessors, (96), 96 states have call successors, (96) [2024-12-02 05:58:45,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1644 transitions. [2024-12-02 05:58:45,458 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1644 transitions. Word has length 112 [2024-12-02 05:58:45,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:45,458 INFO L471 AbstractCegarLoop]: Abstraction has 1388 states and 1644 transitions. [2024-12-02 05:58:45,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:58:45,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1644 transitions. [2024-12-02 05:58:45,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 05:58:45,460 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:45,460 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:45,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:45,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:45,660 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:45,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:45,661 INFO L85 PathProgramCache]: Analyzing trace with hash 971607119, now seen corresponding path program 1 times [2024-12-02 05:58:45,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:58:45,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590708541] [2024-12-02 05:58:45,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:45,661 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 05:58:45,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:58:45,663 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:45,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:45,920 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 05:58:45,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:58:45,926 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 17 treesize of output 13 [2024-12-02 05:58:45,937 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 29 treesize of output 21 [2024-12-02 05:58:46,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-12-02 05:58:46,469 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 52 treesize of output 28 [2024-12-02 05:58:46,543 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:58:46,543 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:58:46,543 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:58:46,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590708541] [2024-12-02 05:58:46,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590708541] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:46,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:46,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 05:58:46,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465658233] [2024-12-02 05:58:46,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:46,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 05:58:46,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:58:46,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 05:58:46,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 05:58:46,544 INFO L87 Difference]: Start difference. First operand 1388 states and 1644 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:58:49,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:49,264 INFO L93 Difference]: Finished difference Result 2305 states and 2724 transitions. [2024-12-02 05:58:49,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 05:58:49,265 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-12-02 05:58:49,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:49,268 INFO L225 Difference]: With dead ends: 2305 [2024-12-02 05:58:49,269 INFO L226 Difference]: Without dead ends: 1620 [2024-12-02 05:58:49,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-12-02 05:58:49,269 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 195 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:49,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1572 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 05:58:49,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2024-12-02 05:58:49,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1446. [2024-12-02 05:58:49,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1446 states, 1311 states have (on average 1.1540808543096872) internal successors, (1513), 1325 states have internal predecessors, (1513), 96 states have call successors, (96), 38 states have call predecessors, (96), 38 states have return successors, (96), 82 states have call predecessors, (96), 96 states have call successors, (96) [2024-12-02 05:58:49,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 1705 transitions. [2024-12-02 05:58:49,373 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 1705 transitions. Word has length 112 [2024-12-02 05:58:49,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:49,373 INFO L471 AbstractCegarLoop]: Abstraction has 1446 states and 1705 transitions. [2024-12-02 05:58:49,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:58:49,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 1705 transitions. [2024-12-02 05:58:49,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 05:58:49,374 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:49,374 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:49,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-12-02 05:58:49,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:49,575 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:49,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:49,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1651665489, now seen corresponding path program 1 times [2024-12-02 05:58:49,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:58:49,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696007394] [2024-12-02 05:58:49,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:49,575 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 05:58:49,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:58:49,577 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:49,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:49,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 05:58:49,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:58:50,358 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 17 treesize of output 13 [2024-12-02 05:58:50,509 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 71 treesize of output 55 [2024-12-02 05:58:50,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2024-12-02 05:58:50,825 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 65 treesize of output 45 [2024-12-02 05:58:51,474 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 53 treesize of output 41 [2024-12-02 05:58:51,480 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 52 treesize of output 40 [2024-12-02 05:58:51,753 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:58:51,753 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:58:51,753 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:58:51,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696007394] [2024-12-02 05:58:51,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696007394] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:58:51,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:58:51,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 05:58:51,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833103213] [2024-12-02 05:58:51,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:58:51,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 05:58:51,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:58:51,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 05:58:51,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-12-02 05:58:51,755 INFO L87 Difference]: Start difference. First operand 1446 states and 1705 transitions. Second operand has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:58:58,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:58:58,131 INFO L93 Difference]: Finished difference Result 2525 states and 2980 transitions. [2024-12-02 05:58:58,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-12-02 05:58:58,132 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-12-02 05:58:58,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:58:58,135 INFO L225 Difference]: With dead ends: 2525 [2024-12-02 05:58:58,135 INFO L226 Difference]: Without dead ends: 1782 [2024-12-02 05:58:58,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=191, Invalid=1215, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 05:58:58,136 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 397 mSDsluCounter, 2185 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 2400 SdHoareTripleChecker+Invalid, 1425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:58:58,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 2400 Invalid, 1425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-12-02 05:58:58,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2024-12-02 05:58:58,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 1496. [2024-12-02 05:58:58,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1496 states, 1361 states have (on average 1.151359294636297) internal successors, (1567), 1375 states have internal predecessors, (1567), 96 states have call successors, (96), 38 states have call predecessors, (96), 38 states have return successors, (96), 82 states have call predecessors, (96), 96 states have call successors, (96) [2024-12-02 05:58:58,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 1759 transitions. [2024-12-02 05:58:58,255 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 1759 transitions. Word has length 112 [2024-12-02 05:58:58,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:58:58,255 INFO L471 AbstractCegarLoop]: Abstraction has 1496 states and 1759 transitions. [2024-12-02 05:58:58,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:58:58,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 1759 transitions. [2024-12-02 05:58:58,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 05:58:58,256 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:58:58,257 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:58:58,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:58,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:58,457 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:58:58,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:58:58,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1971133969, now seen corresponding path program 1 times [2024-12-02 05:58:58,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:58:58,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1760795102] [2024-12-02 05:58:58,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:58:58,458 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 05:58:58,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:58:58,459 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:58,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:58:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:58:58,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 05:58:58,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:58:59,281 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 17 treesize of output 13 [2024-12-02 05:58:59,354 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 42 treesize of output 30 [2024-12-02 05:58:59,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2024-12-02 05:58:59,666 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 46 treesize of output 34 [2024-12-02 05:59:00,062 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 53 treesize of output 41 [2024-12-02 05:59:00,066 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 64 treesize of output 48 [2024-12-02 05:59:00,217 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:59:00,217 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:59:00,217 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:59:00,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1760795102] [2024-12-02 05:59:00,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1760795102] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:59:00,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:59:00,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 05:59:00,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729705415] [2024-12-02 05:59:00,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:59:00,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 05:59:00,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:59:00,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 05:59:00,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-12-02 05:59:00,219 INFO L87 Difference]: Start difference. First operand 1496 states and 1759 transitions. Second operand has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:59:06,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:59:06,247 INFO L93 Difference]: Finished difference Result 2629 states and 3074 transitions. [2024-12-02 05:59:06,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-02 05:59:06,248 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-12-02 05:59:06,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:59:06,252 INFO L225 Difference]: With dead ends: 2629 [2024-12-02 05:59:06,253 INFO L226 Difference]: Without dead ends: 1886 [2024-12-02 05:59:06,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=193, Invalid=1367, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 05:59:06,254 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 456 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-12-02 05:59:06,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 2613 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-12-02 05:59:06,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2024-12-02 05:59:06,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1452. [2024-12-02 05:59:06,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1335 states have (on average 1.144569288389513) internal successors, (1528), 1346 states have internal predecessors, (1528), 82 states have call successors, (82), 34 states have call predecessors, (82), 34 states have return successors, (82), 71 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 05:59:06,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 1692 transitions. [2024-12-02 05:59:06,351 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 1692 transitions. Word has length 112 [2024-12-02 05:59:06,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:59:06,352 INFO L471 AbstractCegarLoop]: Abstraction has 1452 states and 1692 transitions. [2024-12-02 05:59:06,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 17 states have internal predecessors, (60), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:59:06,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 1692 transitions. [2024-12-02 05:59:06,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 05:59:06,353 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:59:06,353 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:59:06,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:59:06,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:59:06,553 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:59:06,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:59:06,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1768826934, now seen corresponding path program 1 times [2024-12-02 05:59:06,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:59:06,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837839004] [2024-12-02 05:59:06,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:59:06,554 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 05:59:06,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:59:06,556 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:59:06,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-12-02 05:59:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:59:06,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 05:59:06,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:59:13,248 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 134 treesize of output 86 [2024-12-02 05:59:13,266 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:59:13,266 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 100 treesize of output 40 [2024-12-02 05:59:14,208 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 118 proven. 18 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 05:59:14,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:59:22,323 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 05:59:22,323 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:59:22,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837839004] [2024-12-02 05:59:22,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [837839004] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 05:59:22,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:59:22,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-12-02 05:59:22,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268916694] [2024-12-02 05:59:22,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:59:22,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:59:22,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:59:22,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:59:22,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-12-02 05:59:22,325 INFO L87 Difference]: Start difference. First operand 1452 states and 1692 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:59:34,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:59:34,014 INFO L93 Difference]: Finished difference Result 2992 states and 3471 transitions. [2024-12-02 05:59:34,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 05:59:34,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 113 [2024-12-02 05:59:34,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:59:34,023 INFO L225 Difference]: With dead ends: 2992 [2024-12-02 05:59:34,024 INFO L226 Difference]: Without dead ends: 1543 [2024-12-02 05:59:34,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-12-02 05:59:34,025 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 30 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-12-02 05:59:34,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 382 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2024-12-02 05:59:34,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2024-12-02 05:59:34,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 754. [2024-12-02 05:59:34,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 695 states have (on average 1.1424460431654677) internal successors, (794), 698 states have internal predecessors, (794), 41 states have call successors, (41), 17 states have call predecessors, (41), 17 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-12-02 05:59:34,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 876 transitions. [2024-12-02 05:59:34,094 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 876 transitions. Word has length 113 [2024-12-02 05:59:34,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:59:34,094 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 876 transitions. [2024-12-02 05:59:34,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 05:59:34,094 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 876 transitions. [2024-12-02 05:59:34,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 05:59:34,095 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:59:34,095 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:59:34,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-12-02 05:59:34,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:59:34,296 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:59:34,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:59:34,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1074756446, now seen corresponding path program 1 times [2024-12-02 05:59:34,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 05:59:34,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578856963] [2024-12-02 05:59:34,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:59:34,297 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 05:59:34,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 05:59:34,298 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:59:34,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 05:59:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:59:34,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 05:59:34,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:59:34,659 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 17 treesize of output 9 [2024-12-02 05:59:34,760 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 05:59:35,006 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 37 treesize of output 17 [2024-12-02 05:59:35,407 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:59:35,407 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 56 treesize of output 35 [2024-12-02 05:59:36,125 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 15 [2024-12-02 05:59:36,999 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 146 proven. 21 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 05:59:36,999 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:59:40,841 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 05:59:40,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578856963] [2024-12-02 05:59:40,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578856963] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:59:40,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1878020958] [2024-12-02 05:59:40,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:59:40,841 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 05:59:40,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 05:59:40,843 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 05:59:40,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2024-12-02 05:59:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:59:41,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 05:59:41,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:59:42,264 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 17 treesize of output 9 [2024-12-02 05:59:42,585 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 05:59:43,224 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 05:59:43,365 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 05:59:44,406 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 17 treesize of output 13 [2024-12-02 05:59:44,971 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 05:59:44,972 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 66 treesize of output 46 [2024-12-02 05:59:46,104 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 28 treesize of output 16 [2024-12-02 05:59:50,016 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 144 proven. 15 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-12-02 05:59:50,016 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:59:57,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1878020958] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:59:57,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 05:59:57,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 31 [2024-12-02 05:59:57,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743450353] [2024-12-02 05:59:57,111 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 05:59:57,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 05:59:57,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 05:59:57,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 05:59:57,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=1955, Unknown=1, NotChecked=0, Total=2256 [2024-12-02 05:59:57,112 INFO L87 Difference]: Start difference. First operand 754 states and 876 transitions. Second operand has 32 states, 29 states have (on average 4.137931034482759) internal successors, (120), 30 states have internal predecessors, (120), 9 states have call successors, (22), 7 states have call predecessors, (22), 9 states have return successors, (22), 6 states have call predecessors, (22), 9 states have call successors, (22) [2024-12-02 06:00:22,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:00:22,190 INFO L93 Difference]: Finished difference Result 1463 states and 1702 transitions. [2024-12-02 06:00:22,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-12-02 06:00:22,190 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 4.137931034482759) internal successors, (120), 30 states have internal predecessors, (120), 9 states have call successors, (22), 7 states have call predecessors, (22), 9 states have return successors, (22), 6 states have call predecessors, (22), 9 states have call successors, (22) Word has length 115 [2024-12-02 06:00:22,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:00:22,193 INFO L225 Difference]: With dead ends: 1463 [2024-12-02 06:00:22,193 INFO L226 Difference]: Without dead ends: 1069 [2024-12-02 06:00:22,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 266 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1737 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=1093, Invalid=5226, Unknown=1, NotChecked=0, Total=6320 [2024-12-02 06:00:22,194 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 974 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 2550 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:00:22,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 2550 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 19.0s Time] [2024-12-02 06:00:22,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2024-12-02 06:00:22,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 793. [2024-12-02 06:00:22,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 731 states have (on average 1.1409028727770179) internal successors, (834), 734 states have internal predecessors, (834), 41 states have call successors, (41), 20 states have call predecessors, (41), 20 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-12-02 06:00:22,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 916 transitions. [2024-12-02 06:00:22,257 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 916 transitions. Word has length 115 [2024-12-02 06:00:22,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:00:22,257 INFO L471 AbstractCegarLoop]: Abstraction has 793 states and 916 transitions. [2024-12-02 06:00:22,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 4.137931034482759) internal successors, (120), 30 states have internal predecessors, (120), 9 states have call successors, (22), 7 states have call predecessors, (22), 9 states have return successors, (22), 6 states have call predecessors, (22), 9 states have call successors, (22) [2024-12-02 06:00:22,257 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 916 transitions. [2024-12-02 06:00:22,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 06:00:22,258 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:00:22,258 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:00:22,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2024-12-02 06:00:22,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 06:00:22,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 06:00:22,659 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:00:22,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:00:22,659 INFO L85 PathProgramCache]: Analyzing trace with hash 565283356, now seen corresponding path program 1 times [2024-12-02 06:00:22,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:00:22,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42125464] [2024-12-02 06:00:22,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:00:22,659 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 06:00:22,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:00:22,661 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 06:00:22,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 06:00:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:00:23,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 06:00:23,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:00:23,309 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 06:00:23,516 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 24 treesize of output 23 [2024-12-02 06:00:23,768 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:00:23,768 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 34 treesize of output 36 [2024-12-02 06:00:24,340 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 43 treesize of output 31 [2024-12-02 06:00:24,452 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:00:24,452 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 76 treesize of output 58 [2024-12-02 06:00:24,804 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 57 treesize of output 45 [2024-12-02 06:00:24,809 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:00:24,809 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 55 [2024-12-02 06:00:24,946 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 152 proven. 15 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 06:00:24,946 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:00:25,193 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 06:00:25,193 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:00:25,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42125464] [2024-12-02 06:00:25,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42125464] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 06:00:25,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:00:25,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 20 [2024-12-02 06:00:25,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822131025] [2024-12-02 06:00:25,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:00:25,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:00:25,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:00:25,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:00:25,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-12-02 06:00:25,195 INFO L87 Difference]: Start difference. First operand 793 states and 916 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 06:00:25,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:00:25,739 INFO L93 Difference]: Finished difference Result 1322 states and 1543 transitions. [2024-12-02 06:00:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 06:00:25,739 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 115 [2024-12-02 06:00:25,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:00:25,741 INFO L225 Difference]: With dead ends: 1322 [2024-12-02 06:00:25,741 INFO L226 Difference]: Without dead ends: 886 [2024-12-02 06:00:25,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2024-12-02 06:00:25,742 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 62 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:00:25,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 898 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:00:25,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-12-02 06:00:25,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 692. [2024-12-02 06:00:25,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 630 states have (on average 1.1412698412698412) internal successors, (719), 633 states have internal predecessors, (719), 41 states have call successors, (41), 20 states have call predecessors, (41), 20 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-12-02 06:00:25,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 801 transitions. [2024-12-02 06:00:25,803 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 801 transitions. Word has length 115 [2024-12-02 06:00:25,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:00:25,803 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 801 transitions. [2024-12-02 06:00:25,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 06:00:25,803 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 801 transitions. [2024-12-02 06:00:25,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-12-02 06:00:25,804 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:00:25,804 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:00:25,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 06:00:26,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 06:00:26,005 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:00:26,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:00:26,005 INFO L85 PathProgramCache]: Analyzing trace with hash 402458080, now seen corresponding path program 1 times [2024-12-02 06:00:26,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:00:26,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213570122] [2024-12-02 06:00:26,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:00:26,006 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 06:00:26,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:00:26,007 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 06:00:26,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 06:00:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:00:26,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 06:00:26,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:00:33,275 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 135 treesize of output 87 [2024-12-02 06:00:33,291 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:00:33,291 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 99 treesize of output 39 [2024-12-02 06:00:34,313 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 650 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-12-02 06:00:34,313 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:00:34,313 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:00:34,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213570122] [2024-12-02 06:00:34,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [213570122] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:00:34,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:00:34,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 06:00:34,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656042688] [2024-12-02 06:00:34,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:00:34,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 06:00:34,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:00:34,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 06:00:34,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 06:00:34,315 INFO L87 Difference]: Start difference. First operand 692 states and 801 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 9 states have internal predecessors, (112), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 06:00:43,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:00:43,132 INFO L93 Difference]: Finished difference Result 1799 states and 2075 transitions. [2024-12-02 06:00:43,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 06:00:43,133 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 9 states have internal predecessors, (112), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 216 [2024-12-02 06:00:43,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:00:43,136 INFO L225 Difference]: With dead ends: 1799 [2024-12-02 06:00:43,136 INFO L226 Difference]: Without dead ends: 1370 [2024-12-02 06:00:43,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:00:43,137 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 220 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:00:43,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 915 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-12-02 06:00:43,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2024-12-02 06:00:43,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1339. [2024-12-02 06:00:43,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1216 states have (on average 1.131578947368421) internal successors, (1376), 1227 states have internal predecessors, (1376), 82 states have call successors, (82), 40 states have call predecessors, (82), 40 states have return successors, (82), 71 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 06:00:43,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1540 transitions. [2024-12-02 06:00:43,259 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1540 transitions. Word has length 216 [2024-12-02 06:00:43,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:00:43,259 INFO L471 AbstractCegarLoop]: Abstraction has 1339 states and 1540 transitions. [2024-12-02 06:00:43,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 9 states have internal predecessors, (112), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 06:00:43,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1540 transitions. [2024-12-02 06:00:43,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-12-02 06:00:43,260 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:00:43,260 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:00:43,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Ended with exit code 0 [2024-12-02 06:00:43,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 06:00:43,461 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:00:43,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:00:43,461 INFO L85 PathProgramCache]: Analyzing trace with hash 413491589, now seen corresponding path program 1 times [2024-12-02 06:00:43,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:00:43,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763797875] [2024-12-02 06:00:43,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:00:43,462 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 06:00:43,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:00:43,463 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 06:00:43,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 06:00:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:00:44,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 06:00:44,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:00:44,062 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 06:00:44,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 06:00:44,177 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 24 treesize of output 23 [2024-12-02 06:00:44,315 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 17 treesize of output 13 [2024-12-02 06:00:44,379 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:00:44,380 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 48 treesize of output 30 [2024-12-02 06:00:44,451 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 28 treesize of output 16 [2024-12-02 06:00:44,519 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 667 proven. 15 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-12-02 06:00:44,520 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:00:44,956 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 54 proven. 48 refuted. 0 times theorem prover too weak. 881 trivial. 0 not checked. [2024-12-02 06:00:44,956 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:00:44,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763797875] [2024-12-02 06:00:44,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763797875] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:00:44,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 06:00:44,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2024-12-02 06:00:44,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597041264] [2024-12-02 06:00:44,956 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 06:00:44,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 06:00:44,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:00:44,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 06:00:44,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-12-02 06:00:44,957 INFO L87 Difference]: Start difference. First operand 1339 states and 1540 transitions. Second operand has 16 states, 14 states have (on average 8.642857142857142) internal successors, (121), 16 states have internal predecessors, (121), 6 states have call successors, (39), 4 states have call predecessors, (39), 6 states have return successors, (39), 4 states have call predecessors, (39), 6 states have call successors, (39) [2024-12-02 06:00:47,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:00:47,344 INFO L93 Difference]: Finished difference Result 2244 states and 2596 transitions. [2024-12-02 06:00:47,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 06:00:47,345 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 8.642857142857142) internal successors, (121), 16 states have internal predecessors, (121), 6 states have call successors, (39), 4 states have call predecessors, (39), 6 states have return successors, (39), 4 states have call predecessors, (39), 6 states have call successors, (39) Word has length 218 [2024-12-02 06:00:47,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:00:47,348 INFO L225 Difference]: With dead ends: 2244 [2024-12-02 06:00:47,348 INFO L226 Difference]: Without dead ends: 1392 [2024-12-02 06:00:47,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 420 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2024-12-02 06:00:47,349 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 306 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:00:47,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 812 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 06:00:47,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2024-12-02 06:00:47,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1188. [2024-12-02 06:00:47,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1064 states have (on average 1.1268796992481203) internal successors, (1199), 1074 states have internal predecessors, (1199), 78 states have call successors, (78), 45 states have call predecessors, (78), 45 states have return successors, (78), 68 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 06:00:47,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1355 transitions. [2024-12-02 06:00:47,506 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1355 transitions. Word has length 218 [2024-12-02 06:00:47,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:00:47,506 INFO L471 AbstractCegarLoop]: Abstraction has 1188 states and 1355 transitions. [2024-12-02 06:00:47,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 8.642857142857142) internal successors, (121), 16 states have internal predecessors, (121), 6 states have call successors, (39), 4 states have call predecessors, (39), 6 states have return successors, (39), 4 states have call predecessors, (39), 6 states have call successors, (39) [2024-12-02 06:00:47,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1355 transitions. [2024-12-02 06:00:47,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-12-02 06:00:47,508 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:00:47,508 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:00:47,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 06:00:47,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 06:00:47,708 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:00:47,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:00:47,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1663724091, now seen corresponding path program 1 times [2024-12-02 06:00:47,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 06:00:47,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812299324] [2024-12-02 06:00:47,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:00:47,709 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 06:00:47,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 06:00:47,711 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 06:00:47,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 06:00:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:00:48,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 06:00:48,406 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:00:48,648 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 06:00:48,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 06:00:48,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 06:00:49,252 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 44 treesize of output 32 [2024-12-02 06:00:49,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2024-12-02 06:00:49,573 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 06:00:50,106 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 06:00:50,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-12-02 06:00:51,902 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:00:51,903 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 67 treesize of output 42 [2024-12-02 06:00:53,303 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:00:53,304 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 68 treesize of output 32 [2024-12-02 06:00:53,633 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 244 proven. 559 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 06:00:53,633 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:00:56,135 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 959 trivial. 0 not checked. [2024-12-02 06:00:56,136 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 06:00:56,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812299324] [2024-12-02 06:00:56,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812299324] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 06:00:56,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:00:56,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [21] total 27 [2024-12-02 06:00:56,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233726146] [2024-12-02 06:00:56,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:00:56,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:00:56,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 06:00:56,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:00:56,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2024-12-02 06:00:56,137 INFO L87 Difference]: Start difference. First operand 1188 states and 1355 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 06:00:58,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:00:58,702 INFO L93 Difference]: Finished difference Result 1878 states and 2126 transitions. [2024-12-02 06:00:58,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:00:58,704 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 218 [2024-12-02 06:00:58,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:00:58,705 INFO L225 Difference]: With dead ends: 1878 [2024-12-02 06:00:58,705 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 06:00:58,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 408 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=127, Invalid=685, Unknown=0, NotChecked=0, Total=812 [2024-12-02 06:00:58,706 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 58 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:00:58,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 415 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 06:00:58,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 06:00:58,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 06:00:58,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:00:58,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 06:00:58,707 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 218 [2024-12-02 06:00:58,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:00:58,707 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 06:00:58,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 06:00:58,707 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 06:00:58,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 06:00:58,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 06:00:58,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Ended with exit code 0 [2024-12-02 06:00:58,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c572a13a-3b1a-40af-9814-f1bf78d01d15/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 06:00:58,912 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:00:58,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.