./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.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_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/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_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/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_71be4837-84b3-4f3e-afbd-032c6133d134/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 68b0cda5422c6df9a05dd00f43cb56ae62ac5ef3a6cb82099875e56a3f490744 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:12:25,286 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:12:25,342 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 15:12:25,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:12:25,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:12:25,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:12:25,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:12:25,370 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:12:25,370 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:12:25,370 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:12:25,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:12:25,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:12:25,371 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:12:25,371 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:12:25,371 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:12:25,371 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:12:25,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:12:25,371 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:12:25,371 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:12:25,371 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:12:25,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:12:25,372 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:12:25,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:12:25,372 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:12:25,372 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:12:25,372 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:12:25,372 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:12:25,372 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:12:25,372 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:12:25,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:12:25,372 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:12:25,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:12:25,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:12:25,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:12:25,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:12:25,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:12:25,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:12:25,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:12:25,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:12:25,373 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:12:25,373 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:12:25,373 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:12:25,373 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:12:25,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:12:25,374 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:12:25,374 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:12:25,374 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:12:25,374 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:12:25,374 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_71be4837-84b3-4f3e-afbd-032c6133d134/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 -> 68b0cda5422c6df9a05dd00f43cb56ae62ac5ef3a6cb82099875e56a3f490744 [2024-12-02 15:12:25,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:12:25,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:12:25,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:12:25,613 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:12:25,613 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:12:25,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i [2024-12-02 15:12:28,332 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/data/01e28dc64/8c41edfb749e43139600cd5c3049a177/FLAG5dfd2365f [2024-12-02 15:12:28,533 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:12:28,534 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i [2024-12-02 15:12:28,542 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/data/01e28dc64/8c41edfb749e43139600cd5c3049a177/FLAG5dfd2365f [2024-12-02 15:12:28,557 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/data/01e28dc64/8c41edfb749e43139600cd5c3049a177 [2024-12-02 15:12:28,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:12:28,561 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:12:28,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:12:28,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:12:28,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:12:28,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:12:28" (1/1) ... [2024-12-02 15:12:28,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12831ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:28, skipping insertion in model container [2024-12-02 15:12:28,568 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:12:28" (1/1) ... [2024-12-02 15:12:28,584 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:12:28,713 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_71be4837-84b3-4f3e-afbd-032c6133d134/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i[915,928] [2024-12-02 15:12:28,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:12:28,765 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:12:28,775 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_71be4837-84b3-4f3e-afbd-032c6133d134/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i[915,928] [2024-12-02 15:12:28,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:12:28,818 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:12:28,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:28 WrapperNode [2024-12-02 15:12:28,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:12:28,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:12:28,820 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:12:28,820 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:12:28,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:28" (1/1) ... [2024-12-02 15:12:28,835 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:28" (1/1) ... [2024-12-02 15:12:28,861 INFO L138 Inliner]: procedures = 29, calls = 103, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 341 [2024-12-02 15:12:28,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:12:28,862 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:12:28,862 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:12:28,862 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:12:28,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:28" (1/1) ... [2024-12-02 15:12:28,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:28" (1/1) ... [2024-12-02 15:12:28,875 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:28" (1/1) ... [2024-12-02 15:12:28,891 INFO L175 MemorySlicer]: Split 86 memory accesses to 2 slices as follows [2, 84]. 98 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 9]. The 13 writes are split as follows [0, 13]. [2024-12-02 15:12:28,891 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:28" (1/1) ... [2024-12-02 15:12:28,891 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:28" (1/1) ... [2024-12-02 15:12:28,904 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:28" (1/1) ... [2024-12-02 15:12:28,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:28" (1/1) ... [2024-12-02 15:12:28,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:28" (1/1) ... [2024-12-02 15:12:28,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:28" (1/1) ... [2024-12-02 15:12:28,912 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:28" (1/1) ... [2024-12-02 15:12:28,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:12:28,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:12:28,917 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:12:28,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:12:28,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:28" (1/1) ... [2024-12-02 15:12:28,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:12:28,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:12:28,944 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:12:28,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:12:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:12:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-12-02 15:12:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-12-02 15:12:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 15:12:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 15:12:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-12-02 15:12:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-12-02 15:12:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 15:12:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 15:12:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-12-02 15:12:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-12-02 15:12:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 15:12:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 15:12:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:12:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 15:12:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:12:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:12:29,048 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:12:29,050 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:12:29,369 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-12-02 15:12:29,369 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:12:29,377 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:12:29,377 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 15:12:29,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:12:29 BoogieIcfgContainer [2024-12-02 15:12:29,377 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:12:29,379 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:12:29,379 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:12:29,384 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:12:29,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:12:28" (1/3) ... [2024-12-02 15:12:29,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@478980cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:12:29, skipping insertion in model container [2024-12-02 15:12:29,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:28" (2/3) ... [2024-12-02 15:12:29,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@478980cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:12:29, skipping insertion in model container [2024-12-02 15:12:29,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:12:29" (3/3) ... [2024-12-02 15:12:29,386 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-9.i [2024-12-02 15:12:29,400 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:12:29,402 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-9.i that has 2 procedures, 76 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 15:12:29,450 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:12:29,461 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;@aaa3d8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:12:29,462 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 15:12:29,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 69 states have internal predecessors, (97), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 15:12:29,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 15:12:29,472 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:29,472 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:29,473 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:29,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:29,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1156031742, now seen corresponding path program 1 times [2024-12-02 15:12:29,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:29,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355062678] [2024-12-02 15:12:29,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:29,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:29,685 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 15:12:29,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:29,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355062678] [2024-12-02 15:12:29,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355062678] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:12:29,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765058068] [2024-12-02 15:12:29,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:29,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:12:29,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:12:29,689 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:12:29,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:12:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:29,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 15:12:29,847 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:12:29,860 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 15:12:29,861 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:12:29,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765058068] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:29,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:12:29,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 15:12:29,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372383605] [2024-12-02 15:12:29,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:29,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 15:12:29,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:29,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 15:12:29,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:12:29,886 INFO L87 Difference]: Start difference. First operand has 76 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 69 states have internal predecessors, (97), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:12:29,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:29,908 INFO L93 Difference]: Finished difference Result 145 states and 213 transitions. [2024-12-02 15:12:29,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 15:12:29,909 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-12-02 15:12:29,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:29,915 INFO L225 Difference]: With dead ends: 145 [2024-12-02 15:12:29,915 INFO L226 Difference]: Without dead ends: 72 [2024-12-02 15:12:29,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:12:29,920 INFO L435 NwaCegarLoop]: 100 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, 100 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:29,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:12:29,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-12-02 15:12:29,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-12-02 15:12:29,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 65 states have internal predecessors, (90), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 15:12:29,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 100 transitions. [2024-12-02 15:12:29,948 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 100 transitions. Word has length 62 [2024-12-02 15:12:29,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:29,949 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 100 transitions. [2024-12-02 15:12:29,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:12:29,949 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2024-12-02 15:12:29,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 15:12:29,951 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:29,951 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:29,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 15:12:30,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 15:12:30,152 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:30,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:30,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1779963588, now seen corresponding path program 1 times [2024-12-02 15:12:30,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:30,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906359471] [2024-12-02 15:12:30,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:30,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:30,355 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:12:30,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:30,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906359471] [2024-12-02 15:12:30,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906359471] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:30,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:30,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:12:30,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154735176] [2024-12-02 15:12:30,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:30,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:12:30,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:30,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:12:30,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:12:30,357 INFO L87 Difference]: Start difference. First operand 72 states and 100 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:30,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:30,395 INFO L93 Difference]: Finished difference Result 144 states and 201 transitions. [2024-12-02 15:12:30,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:12:30,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-12-02 15:12:30,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:30,397 INFO L225 Difference]: With dead ends: 144 [2024-12-02 15:12:30,397 INFO L226 Difference]: Without dead ends: 75 [2024-12-02 15:12:30,397 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 15:12:30,398 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:30,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 280 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:12:30,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-12-02 15:12:30,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2024-12-02 15:12:30,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 67 states have (on average 1.373134328358209) internal successors, (92), 67 states have internal predecessors, (92), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 15:12:30,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2024-12-02 15:12:30,405 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 102 transitions. Word has length 62 [2024-12-02 15:12:30,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:30,406 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 102 transitions. [2024-12-02 15:12:30,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:30,406 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 102 transitions. [2024-12-02 15:12:30,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 15:12:30,407 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:30,407 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:30,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 15:12:30,408 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:30,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:30,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1813939130, now seen corresponding path program 1 times [2024-12-02 15:12:30,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:30,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016929073] [2024-12-02 15:12:30,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:30,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:30,768 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 15:12:30,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:30,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016929073] [2024-12-02 15:12:30,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016929073] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:12:30,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862494444] [2024-12-02 15:12:30,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:30,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:12:30,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:12:30,771 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:12:30,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 15:12:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:30,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:12:30,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:12:30,956 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:12:30,956 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:12:30,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862494444] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:30,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:12:30,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-12-02 15:12:30,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796106093] [2024-12-02 15:12:30,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:30,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:12:30,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:30,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:12:30,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:12:30,958 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:30,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:30,991 INFO L93 Difference]: Finished difference Result 148 states and 205 transitions. [2024-12-02 15:12:30,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:12:30,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-12-02 15:12:30,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:30,993 INFO L225 Difference]: With dead ends: 148 [2024-12-02 15:12:30,993 INFO L226 Difference]: Without dead ends: 77 [2024-12-02 15:12:30,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:12:30,994 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:30,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 281 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:12:30,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-12-02 15:12:30,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2024-12-02 15:12:30,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 69 states have internal predecessors, (94), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 15:12:31,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 104 transitions. [2024-12-02 15:12:31,000 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 104 transitions. Word has length 62 [2024-12-02 15:12:31,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:31,001 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 104 transitions. [2024-12-02 15:12:31,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:31,001 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 104 transitions. [2024-12-02 15:12:31,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 15:12:31,002 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:31,002 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:31,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 15:12:31,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:12:31,202 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:31,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:31,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1133880760, now seen corresponding path program 1 times [2024-12-02 15:12:31,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:31,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584914650] [2024-12-02 15:12:31,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:31,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:31,486 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 15:12:31,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:31,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584914650] [2024-12-02 15:12:31,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584914650] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:12:31,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583078187] [2024-12-02 15:12:31,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:31,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:12:31,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:12:31,489 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:12:31,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 15:12:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:31,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:12:31,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:12:31,661 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:12:31,661 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:12:31,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583078187] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:31,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:12:31,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-12-02 15:12:31,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658064885] [2024-12-02 15:12:31,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:31,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:12:31,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:31,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:12:31,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:12:31,663 INFO L87 Difference]: Start difference. First operand 76 states and 104 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:31,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:31,689 INFO L93 Difference]: Finished difference Result 152 states and 209 transitions. [2024-12-02 15:12:31,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:12:31,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-12-02 15:12:31,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:31,691 INFO L225 Difference]: With dead ends: 152 [2024-12-02 15:12:31,691 INFO L226 Difference]: Without dead ends: 79 [2024-12-02 15:12:31,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-12-02 15:12:31,693 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 282 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 15:12:31,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 282 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:12:31,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-12-02 15:12:31,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2024-12-02 15:12:31,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 71 states have (on average 1.352112676056338) internal successors, (96), 71 states have internal predecessors, (96), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 15:12:31,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 106 transitions. [2024-12-02 15:12:31,699 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 106 transitions. Word has length 62 [2024-12-02 15:12:31,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:31,700 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 106 transitions. [2024-12-02 15:12:31,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:31,700 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 106 transitions. [2024-12-02 15:12:31,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 15:12:31,701 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:31,701 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:31,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 15:12:31,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:12:31,902 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:31,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:31,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1132033718, now seen corresponding path program 1 times [2024-12-02 15:12:31,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:31,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341308577] [2024-12-02 15:12:31,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:31,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:32,203 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 15:12:32,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:32,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341308577] [2024-12-02 15:12:32,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341308577] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:12:32,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918361865] [2024-12-02 15:12:32,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:32,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:12:32,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:12:32,205 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:12:32,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 15:12:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:32,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 15:12:32,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:12:32,404 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 7 [2024-12-02 15:12:32,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 15:12:32,506 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 7 [2024-12-02 15:12:32,522 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:12:32,522 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:12:32,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918361865] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:32,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:12:32,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2024-12-02 15:12:32,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078965161] [2024-12-02 15:12:32,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:32,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:12:32,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:32,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:12:32,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:12:32,524 INFO L87 Difference]: Start difference. First operand 78 states and 106 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:32,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:32,768 INFO L93 Difference]: Finished difference Result 279 states and 382 transitions. [2024-12-02 15:12:32,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:12:32,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-12-02 15:12:32,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:32,769 INFO L225 Difference]: With dead ends: 279 [2024-12-02 15:12:32,770 INFO L226 Difference]: Without dead ends: 204 [2024-12-02 15:12:32,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-12-02 15:12:32,771 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 211 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:32,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 240 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:12:32,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-12-02 15:12:32,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 149. [2024-12-02 15:12:32,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 136 states have (on average 1.3529411764705883) internal successors, (184), 136 states have internal predecessors, (184), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 15:12:32,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 204 transitions. [2024-12-02 15:12:32,787 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 204 transitions. Word has length 62 [2024-12-02 15:12:32,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:32,787 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 204 transitions. [2024-12-02 15:12:32,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:32,788 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 204 transitions. [2024-12-02 15:12:32,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-12-02 15:12:32,789 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:32,789 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:32,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 15:12:32,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:12:32,990 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:32,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:32,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1248313765, now seen corresponding path program 1 times [2024-12-02 15:12:32,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:32,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702985443] [2024-12-02 15:12:32,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:32,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:33,876 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:12:33,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:33,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702985443] [2024-12-02 15:12:33,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702985443] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:33,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:33,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:12:33,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118054416] [2024-12-02 15:12:33,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:33,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:12:33,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:33,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:12:33,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:12:33,878 INFO L87 Difference]: Start difference. First operand 149 states and 204 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:12:34,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:34,086 INFO L93 Difference]: Finished difference Result 301 states and 413 transitions. [2024-12-02 15:12:34,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:12:34,086 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2024-12-02 15:12:34,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:34,087 INFO L225 Difference]: With dead ends: 301 [2024-12-02 15:12:34,087 INFO L226 Difference]: Without dead ends: 155 [2024-12-02 15:12:34,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:12:34,088 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 48 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:34,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 304 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:12:34,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-12-02 15:12:34,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2024-12-02 15:12:34,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 140 states have (on average 1.3428571428571427) internal successors, (188), 140 states have internal predecessors, (188), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 15:12:34,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 208 transitions. [2024-12-02 15:12:34,101 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 208 transitions. Word has length 63 [2024-12-02 15:12:34,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:34,102 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 208 transitions. [2024-12-02 15:12:34,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:12:34,102 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 208 transitions. [2024-12-02 15:12:34,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 15:12:34,103 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:34,104 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:34,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 15:12:34,104 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:34,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:34,104 INFO L85 PathProgramCache]: Analyzing trace with hash -2085121383, now seen corresponding path program 1 times [2024-12-02 15:12:34,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:34,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925362822] [2024-12-02 15:12:34,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:34,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:34,358 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 15:12:34,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:34,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925362822] [2024-12-02 15:12:34,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925362822] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:12:34,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081026752] [2024-12-02 15:12:34,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:34,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:12:34,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:12:34,360 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:12:34,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 15:12:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:34,497 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 15:12:34,501 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:12:34,526 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 7 [2024-12-02 15:12:34,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 15:12:34,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2024-12-02 15:12:34,642 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:12:34,643 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 44 treesize of output 25 [2024-12-02 15:12:34,667 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:12:34,667 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 25 [2024-12-02 15:12:34,690 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:12:34,690 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 25 [2024-12-02 15:12:34,718 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:12:34,718 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 10 [2024-12-02 15:12:34,731 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:12:34,731 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:12:34,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081026752] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:34,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:12:34,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-12-02 15:12:34,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840332970] [2024-12-02 15:12:34,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:34,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:12:34,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:34,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:12:34,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:12:34,733 INFO L87 Difference]: Start difference. First operand 153 states and 208 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:35,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:35,058 INFO L93 Difference]: Finished difference Result 385 states and 523 transitions. [2024-12-02 15:12:35,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:12:35,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 67 [2024-12-02 15:12:35,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:35,060 INFO L225 Difference]: With dead ends: 385 [2024-12-02 15:12:35,060 INFO L226 Difference]: Without dead ends: 235 [2024-12-02 15:12:35,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 66 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-12-02 15:12:35,061 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 222 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:35,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 322 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:12:35,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-12-02 15:12:35,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 153. [2024-12-02 15:12:35,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 140 states have (on average 1.3357142857142856) internal successors, (187), 140 states have internal predecessors, (187), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 15:12:35,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 207 transitions. [2024-12-02 15:12:35,074 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 207 transitions. Word has length 67 [2024-12-02 15:12:35,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:35,075 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 207 transitions. [2024-12-02 15:12:35,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:35,075 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 207 transitions. [2024-12-02 15:12:35,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 15:12:35,076 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:35,076 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:35,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 15:12:35,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:12:35,277 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:35,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:35,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1013672813, now seen corresponding path program 1 times [2024-12-02 15:12:35,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:35,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740034844] [2024-12-02 15:12:35,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:35,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:35,547 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:12:35,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:12:35,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740034844] [2024-12-02 15:12:35,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740034844] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:35,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:35,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:12:35,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789054121] [2024-12-02 15:12:35,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:35,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:12:35,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:12:35,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:12:35,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:12:35,548 INFO L87 Difference]: Start difference. First operand 153 states and 207 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:35,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:35,729 INFO L93 Difference]: Finished difference Result 350 states and 473 transitions. [2024-12-02 15:12:35,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:12:35,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 67 [2024-12-02 15:12:35,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:35,731 INFO L225 Difference]: With dead ends: 350 [2024-12-02 15:12:35,731 INFO L226 Difference]: Without dead ends: 200 [2024-12-02 15:12:35,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:12:35,732 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 187 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:35,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 258 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:12:35,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-12-02 15:12:35,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 143. [2024-12-02 15:12:35,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 130 states have (on average 1.323076923076923) internal successors, (172), 130 states have internal predecessors, (172), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 15:12:35,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 192 transitions. [2024-12-02 15:12:35,744 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 192 transitions. Word has length 67 [2024-12-02 15:12:35,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:35,744 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 192 transitions. [2024-12-02 15:12:35,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:35,744 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 192 transitions. [2024-12-02 15:12:35,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 15:12:35,745 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:35,745 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:35,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 15:12:35,745 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:35,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:35,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1047048597, now seen corresponding path program 1 times [2024-12-02 15:12:35,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:12:35,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137496111] [2024-12-02 15:12:35,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:35,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:12:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 15:12:35,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1206008841] [2024-12-02 15:12:35,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:35,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:12:35,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:12:35,805 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:12:35,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 15:12:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:12:36,070 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 15:12:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:12:36,234 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 15:12:36,234 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 15:12:36,235 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 15:12:36,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 15:12:36,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:12:36,440 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:36,480 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 15:12:36,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:12:36 BoogieIcfgContainer [2024-12-02 15:12:36,483 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 15:12:36,484 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 15:12:36,484 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 15:12:36,484 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 15:12:36,484 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:12:29" (3/4) ... [2024-12-02 15:12:36,486 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 15:12:36,487 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 15:12:36,488 INFO L158 Benchmark]: Toolchain (without parser) took 7927.46ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 118.6MB in the beginning and 313.4MB in the end (delta: -194.8MB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. [2024-12-02 15:12:36,488 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:12:36,488 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.98ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 104.1MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:12:36,488 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.13ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 101.2MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:12:36,489 INFO L158 Benchmark]: Boogie Preprocessor took 53.75ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 97.9MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:12:36,489 INFO L158 Benchmark]: RCFGBuilder took 461.14ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 73.5MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 15:12:36,489 INFO L158 Benchmark]: TraceAbstraction took 7103.93ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 73.0MB in the beginning and 313.4MB in the end (delta: -240.4MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2024-12-02 15:12:36,489 INFO L158 Benchmark]: Witness Printer took 3.46ms. Allocated memory is still 411.0MB. Free memory was 313.4MB in the beginning and 313.4MB in the end (delta: 53.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 15:12:36,491 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.98ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 104.1MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.13ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 101.2MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.75ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 97.9MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 461.14ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 73.5MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 7103.93ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 73.0MB in the beginning and 313.4MB in the end (delta: -240.4MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Witness Printer took 3.46ms. Allocated memory is still 411.0MB. Free memory was 313.4MB in the beginning and 313.4MB in the end (delta: 53.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftLeft at line 59, overapproximation of shiftLeft at line 95, overapproximation of someBinaryDOUBLEComparisonOperation at line 52, overapproximation of someBinaryDOUBLEComparisonOperation at line 95, overapproximation of someBinaryDOUBLEComparisonOperation at line 86, overapproximation of someBinaryDOUBLEComparisonOperation at line 86. Possible FailurePath: [L33] unsigned char isInitial = 0; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 10, 4, 0, 100, 32, 9.2, 0.975, 1, -16 }; [L45] unsigned char last_1_WrapperStruct0_var_1_1 = 10; [L46] double last_1_WrapperStruct0_var_1_10 = 9.2; [L47] signed short int last_1_WrapperStruct0_var_1_12 = 1; [L48] signed long int last_1_WrapperStruct0_var_1_14 = -16; VAL [WrapperStruct0={4:0}, isInitial=0, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L99] isInitial = 1 [L100] FCALL initially() [L102] CALL updateLastVariables() [L89] EXPR WrapperStruct0.var_1_1 [L89] last_1_WrapperStruct0_var_1_1 = WrapperStruct0.var_1_1 [L90] EXPR WrapperStruct0.var_1_10 [L90] last_1_WrapperStruct0_var_1_10 = WrapperStruct0.var_1_10 [L91] EXPR WrapperStruct0.var_1_12 [L91] last_1_WrapperStruct0_var_1_12 = WrapperStruct0.var_1_12 [L92] EXPR WrapperStruct0.var_1_14 [L92] last_1_WrapperStruct0_var_1_14 = WrapperStruct0.var_1_14 [L102] RET updateLastVariables() [L103] CALL updateVariables() [L79] WrapperStruct0.var_1_3 = __VERIFIER_nondet_uchar() [L80] EXPR WrapperStruct0.var_1_3 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L80] CALL assume_abort_if_not(WrapperStruct0.var_1_3 >= 0) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L80] RET assume_abort_if_not(WrapperStruct0.var_1_3 >= 0) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L81] EXPR WrapperStruct0.var_1_3 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L81] CALL assume_abort_if_not(WrapperStruct0.var_1_3 <= 254) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L81] RET assume_abort_if_not(WrapperStruct0.var_1_3 <= 254) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L82] WrapperStruct0.var_1_7 = __VERIFIER_nondet_uchar() [L83] EXPR WrapperStruct0.var_1_7 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L83] CALL assume_abort_if_not(WrapperStruct0.var_1_7 >= 0) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L83] RET assume_abort_if_not(WrapperStruct0.var_1_7 >= 0) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L84] EXPR WrapperStruct0.var_1_7 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L84] CALL assume_abort_if_not(WrapperStruct0.var_1_7 <= 1) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L84] RET assume_abort_if_not(WrapperStruct0.var_1_7 <= 1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L85] WrapperStruct0.var_1_11 = __VERIFIER_nondet_double() [L86] EXPR WrapperStruct0.var_1_11 [L86] EXPR WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L86] EXPR WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F [L86] EXPR WrapperStruct0.var_1_11 [L86] EXPR WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L86] EXPR (WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F) || (WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L86] EXPR (WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F) || (WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L86] CALL assume_abort_if_not((WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F) || (WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L86] RET assume_abort_if_not((WrapperStruct0.var_1_11 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_11 <= -1.0e-20F) || (WrapperStruct0.var_1_11 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_11 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L103] RET updateVariables() [L104] CALL step() [L52] unsigned char stepLocal_0 = last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10; VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10, stepLocal_0=0] [L53] COND FALSE !(((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || stepLocal_0) [L56] WrapperStruct0.var_1_12 = last_1_WrapperStruct0_var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L58] EXPR WrapperStruct0.var_1_12 [L58] WrapperStruct0.var_1_14 = WrapperStruct0.var_1_12 [L59] EXPR WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L59] EXPR 10 << WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L59] EXPR WrapperStruct0.var_1_3 [L59] EXPR WrapperStruct0.var_1_14 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L59] COND TRUE (10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14) [L60] EXPR WrapperStruct0.var_1_12 [L60] EXPR WrapperStruct0.var_1_14 [L60] WrapperStruct0.var_1_8 = (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14) [L62] WrapperStruct0.var_1_9 = 64 [L63] EXPR WrapperStruct0.var_1_11 [L63] WrapperStruct0.var_1_10 = WrapperStruct0.var_1_11 [L64] EXPR WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L64] COND TRUE WrapperStruct0.var_1_12 <= 16 [L65] EXPR WrapperStruct0.var_1_3 [L65] WrapperStruct0.var_1_1 = WrapperStruct0.var_1_3 [L104] RET step() [L105] CALL, EXPR property() [L95] EXPR WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR (WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) [L95] EXPR WrapperStruct0.var_1_1 [L95] EXPR WrapperStruct0.var_1_3 [L95] EXPR (WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1) [L95] EXPR WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR 10 << WrapperStruct0.var_1_12 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR WrapperStruct0.var_1_3 [L95] EXPR WrapperStruct0.var_1_14 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1 [L95] EXPR WrapperStruct0.var_1_8 [L95] EXPR WrapperStruct0.var_1_12 [L95] EXPR WrapperStruct0.var_1_14 [L95] EXPR ((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR (((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR (((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64)) [L95] EXPR WrapperStruct0.var_1_9 [L95] EXPR (((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11)) [L95] EXPR WrapperStruct0.var_1_10 [L95] EXPR WrapperStruct0.var_1_11 [L95] EXPR ((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR (((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? (WrapperStruct0.var_1_12 == ((signed short int) ((((((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? (((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : (WrapperStruct0.var_1_12 == ((signed short int) last_1_WrapperStruct0_var_1_12))) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR (((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? (WrapperStruct0.var_1_12 == ((signed short int) ((((((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? (((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : (WrapperStruct0.var_1_12 == ((signed short int) last_1_WrapperStruct0_var_1_12))) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? (WrapperStruct0.var_1_12 == ((signed short int) ((((((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? (((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : (WrapperStruct0.var_1_12 == ((signed short int) last_1_WrapperStruct0_var_1_12)))) && (WrapperStruct0.var_1_14 == ((signed long int) WrapperStruct0.var_1_12)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95] EXPR ((((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? (WrapperStruct0.var_1_12 == ((signed short int) ((((((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? (((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : (WrapperStruct0.var_1_12 == ((signed short int) last_1_WrapperStruct0_var_1_12)))) && (WrapperStruct0.var_1_14 == ((signed long int) WrapperStruct0.var_1_12)) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L95-L96] return ((((((WrapperStruct0.var_1_12 <= 16) ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : ((((((WrapperStruct0.var_1_10) > (WrapperStruct0.var_1_10)) ? (WrapperStruct0.var_1_10) : (WrapperStruct0.var_1_10))) < WrapperStruct0.var_1_10) ? (WrapperStruct0.var_1_7 ? (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3))) : (WrapperStruct0.var_1_1 == ((unsigned char) WrapperStruct0.var_1_3)))) && (((10 << WrapperStruct0.var_1_12) < (WrapperStruct0.var_1_3 * WrapperStruct0.var_1_14)) ? (WrapperStruct0.var_1_8 == ((signed short int) (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_14))) : 1)) && (WrapperStruct0.var_1_9 == ((unsigned char) 64))) && (WrapperStruct0.var_1_10 == ((double) WrapperStruct0.var_1_11))) && ((((last_1_WrapperStruct0_var_1_12 + last_1_WrapperStruct0_var_1_1) < 10) || (last_1_WrapperStruct0_var_1_10 > last_1_WrapperStruct0_var_1_10)) ? (WrapperStruct0.var_1_12 == ((signed short int) ((((((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) > (last_1_WrapperStruct0_var_1_1)) ? (((WrapperStruct0.var_1_3 + last_1_WrapperStruct0_var_1_12) - ((((last_1_WrapperStruct0_var_1_14) > (last_1_WrapperStruct0_var_1_12)) ? (last_1_WrapperStruct0_var_1_14) : (last_1_WrapperStruct0_var_1_12))))) : (last_1_WrapperStruct0_var_1_1))))) : (WrapperStruct0.var_1_12 == ((signed short int) last_1_WrapperStruct0_var_1_12)))) && (WrapperStruct0.var_1_14 == ((signed long int) WrapperStruct0.var_1_12)) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] [L19] reach_error() VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_10=46/5, last_1_WrapperStruct0_var_1_12=1, last_1_WrapperStruct0_var_1_14=-16, last_1_WrapperStruct0_var_1_1=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.0s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 672 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 671 mSDsluCounter, 2067 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1412 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 736 IncrementalHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 655 mSDtfsCounter, 736 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 391 GetRequests, 332 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=153occurred in iteration=6, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 199 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 958 NumberOfCodeBlocks, 958 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 809 ConstructedInterpolants, 0 QuantifiedInterpolants, 1938 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1301 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 464/520 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 15:12:36,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/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_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/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_71be4837-84b3-4f3e-afbd-032c6133d134/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 68b0cda5422c6df9a05dd00f43cb56ae62ac5ef3a6cb82099875e56a3f490744 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:12:38,441 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:12:38,521 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 15:12:38,528 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:12:38,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:12:38,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:12:38,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:12:38,552 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:12:38,552 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:12:38,552 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:12:38,553 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:12:38,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:12:38,553 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:12:38,553 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:12:38,553 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:12:38,553 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:12:38,553 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:12:38,553 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:12:38,554 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:12:38,554 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:12:38,554 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:12:38,554 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:12:38,554 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:12:38,554 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 15:12:38,554 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 15:12:38,554 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 15:12:38,554 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:12:38,554 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:12:38,554 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:12:38,554 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:12:38,554 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:12:38,554 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:12:38,555 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:12:38,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:12:38,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:12:38,555 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:12:38,555 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:12:38,555 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:12:38,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:12:38,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:12:38,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:12:38,555 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:12:38,555 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:12:38,556 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:12:38,556 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 15:12:38,556 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 15:12:38,556 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:12:38,556 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:12:38,556 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:12:38,556 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:12:38,556 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_71be4837-84b3-4f3e-afbd-032c6133d134/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 -> 68b0cda5422c6df9a05dd00f43cb56ae62ac5ef3a6cb82099875e56a3f490744 [2024-12-02 15:12:38,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:12:38,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:12:38,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:12:38,790 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:12:38,790 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:12:38,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i [2024-12-02 15:12:41,401 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/data/dafb09666/dae8457ff8a1432cab5646d85e92b478/FLAGb0d3e594f [2024-12-02 15:12:41,631 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:12:41,631 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i [2024-12-02 15:12:41,639 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/data/dafb09666/dae8457ff8a1432cab5646d85e92b478/FLAGb0d3e594f [2024-12-02 15:12:41,980 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/data/dafb09666/dae8457ff8a1432cab5646d85e92b478 [2024-12-02 15:12:41,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:12:41,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:12:41,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:12:41,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:12:41,988 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:12:41,989 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:12:41" (1/1) ... [2024-12-02 15:12:41,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@667e1b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:41, skipping insertion in model container [2024-12-02 15:12:41,990 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:12:41" (1/1) ... [2024-12-02 15:12:42,003 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:12:42,115 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_71be4837-84b3-4f3e-afbd-032c6133d134/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i[915,928] [2024-12-02 15:12:42,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:12:42,166 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:12:42,174 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_71be4837-84b3-4f3e-afbd-032c6133d134/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-9.i[915,928] [2024-12-02 15:12:42,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:12:42,222 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:12:42,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:42 WrapperNode [2024-12-02 15:12:42,223 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:12:42,223 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:12:42,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:12:42,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:12:42,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:42" (1/1) ... [2024-12-02 15:12:42,241 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:42" (1/1) ... [2024-12-02 15:12:42,265 INFO L138 Inliner]: procedures = 36, calls = 103, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 327 [2024-12-02 15:12:42,265 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:12:42,266 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:12:42,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:12:42,266 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:12:42,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:42" (1/1) ... [2024-12-02 15:12:42,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:42" (1/1) ... [2024-12-02 15:12:42,280 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:42" (1/1) ... [2024-12-02 15:12:42,295 INFO L175 MemorySlicer]: Split 86 memory accesses to 2 slices as follows [2, 84]. 98 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 9]. The 13 writes are split as follows [0, 13]. [2024-12-02 15:12:42,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:42" (1/1) ... [2024-12-02 15:12:42,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:42" (1/1) ... [2024-12-02 15:12:42,313 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:42" (1/1) ... [2024-12-02 15:12:42,314 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:42" (1/1) ... [2024-12-02 15:12:42,317 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:42" (1/1) ... [2024-12-02 15:12:42,320 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:42" (1/1) ... [2024-12-02 15:12:42,322 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:42" (1/1) ... [2024-12-02 15:12:42,326 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:12:42,326 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:12:42,327 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:12:42,327 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:12:42,328 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:42" (1/1) ... [2024-12-02 15:12:42,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:12:42,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:12:42,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:12:42,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:12:42,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:12:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-12-02 15:12:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-12-02 15:12:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-12-02 15:12:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-12-02 15:12:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 15:12:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 15:12:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-12-02 15:12:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-12-02 15:12:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 15:12:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 15:12:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-12-02 15:12:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-12-02 15:12:42,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-12-02 15:12:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-12-02 15:12:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 15:12:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 15:12:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-12-02 15:12:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-12-02 15:12:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 15:12:42,373 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 15:12:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:12:42,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:12:42,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 15:12:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 15:12:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-12-02 15:12:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-12-02 15:12:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 15:12:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 15:12:42,476 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:12:42,478 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:12:42,953 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-12-02 15:12:42,954 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:12:42,964 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:12:42,964 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 15:12:42,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:12:42 BoogieIcfgContainer [2024-12-02 15:12:42,964 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:12:42,966 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:12:42,966 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:12:42,970 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:12:42,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:12:41" (1/3) ... [2024-12-02 15:12:42,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61bb84ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:12:42, skipping insertion in model container [2024-12-02 15:12:42,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:12:42" (2/3) ... [2024-12-02 15:12:42,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61bb84ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:12:42, skipping insertion in model container [2024-12-02 15:12:42,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:12:42" (3/3) ... [2024-12-02 15:12:42,973 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-9.i [2024-12-02 15:12:42,985 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:12:42,986 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-9.i that has 2 procedures, 70 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 15:12:43,023 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:12:43,032 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;@5081567c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:12:43,033 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 15:12:43,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 62 states have (on average 1.435483870967742) internal successors, (89), 63 states have internal predecessors, (89), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 15:12:43,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-12-02 15:12:43,042 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:43,043 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:43,043 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:43,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:43,047 INFO L85 PathProgramCache]: Analyzing trace with hash -562539789, now seen corresponding path program 1 times [2024-12-02 15:12:43,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:12:43,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568293857] [2024-12-02 15:12:43,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:43,056 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:12:43,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:12:43,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:12:43,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 15:12:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:43,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 15:12:43,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:12:43,322 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 15:12:43,322 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:12:43,323 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:12:43,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568293857] [2024-12-02 15:12:43,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568293857] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:43,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:43,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:12:43,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260043651] [2024-12-02 15:12:43,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:43,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 15:12:43,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:12:43,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 15:12:43,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:12:43,349 INFO L87 Difference]: Start difference. First operand has 70 states, 62 states have (on average 1.435483870967742) internal successors, (89), 63 states have internal predecessors, (89), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:43,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:43,369 INFO L93 Difference]: Finished difference Result 133 states and 197 transitions. [2024-12-02 15:12:43,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 15:12:43,371 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-12-02 15:12:43,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:43,377 INFO L225 Difference]: With dead ends: 133 [2024-12-02 15:12:43,377 INFO L226 Difference]: Without dead ends: 66 [2024-12-02 15:12:43,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:12:43,381 INFO L435 NwaCegarLoop]: 92 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, 92 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:43,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:12:43,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-12-02 15:12:43,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-12-02 15:12:43,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 59 states have internal predecessors, (82), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 15:12:43,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 92 transitions. [2024-12-02 15:12:43,407 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 92 transitions. Word has length 60 [2024-12-02 15:12:43,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:43,407 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 92 transitions. [2024-12-02 15:12:43,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:43,407 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 92 transitions. [2024-12-02 15:12:43,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-12-02 15:12:43,409 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:43,409 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:43,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 15:12:43,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:12:43,610 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:43,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:43,611 INFO L85 PathProgramCache]: Analyzing trace with hash -830046663, now seen corresponding path program 1 times [2024-12-02 15:12:43,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:12:43,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673753554] [2024-12-02 15:12:43,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:43,612 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:12:43,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:12:43,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:12:43,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 15:12:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:43,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:12:43,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:12:43,881 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:12:43,881 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:12:43,881 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:12:43,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673753554] [2024-12-02 15:12:43,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673753554] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:43,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:43,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:12:43,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890916022] [2024-12-02 15:12:43,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:43,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:12:43,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:12:43,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:12:43,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:12:43,883 INFO L87 Difference]: Start difference. First operand 66 states and 92 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:43,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:43,925 INFO L93 Difference]: Finished difference Result 132 states and 185 transitions. [2024-12-02 15:12:43,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:12:43,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-12-02 15:12:43,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:43,927 INFO L225 Difference]: With dead ends: 132 [2024-12-02 15:12:43,928 INFO L226 Difference]: Without dead ends: 69 [2024-12-02 15:12:43,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:12:43,929 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 1 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:43,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 256 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:12:43,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-12-02 15:12:43,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2024-12-02 15:12:43,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 61 states have internal predecessors, (84), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 15:12:43,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2024-12-02 15:12:43,937 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 60 [2024-12-02 15:12:43,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:43,938 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2024-12-02 15:12:43,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:43,939 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2024-12-02 15:12:43,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-12-02 15:12:43,940 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:43,940 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:43,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 15:12:44,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:12:44,141 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:44,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:44,141 INFO L85 PathProgramCache]: Analyzing trace with hash -128982085, now seen corresponding path program 1 times [2024-12-02 15:12:44,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:12:44,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194044952] [2024-12-02 15:12:44,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:44,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:12:44,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:12:44,143 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:12:44,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 15:12:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:44,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:12:44,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:12:44,389 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:12:44,389 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:12:44,390 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:12:44,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194044952] [2024-12-02 15:12:44,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1194044952] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:44,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:44,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:12:44,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429708242] [2024-12-02 15:12:44,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:44,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:12:44,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:12:44,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:12:44,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:12:44,391 INFO L87 Difference]: Start difference. First operand 68 states and 94 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:44,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:44,449 INFO L93 Difference]: Finished difference Result 136 states and 189 transitions. [2024-12-02 15:12:44,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:12:44,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-12-02 15:12:44,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:44,451 INFO L225 Difference]: With dead ends: 136 [2024-12-02 15:12:44,451 INFO L226 Difference]: Without dead ends: 71 [2024-12-02 15:12:44,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:12:44,453 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 1 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:44,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 333 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:12:44,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-12-02 15:12:44,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2024-12-02 15:12:44,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 63 states have internal predecessors, (86), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 15:12:44,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2024-12-02 15:12:44,459 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 60 [2024-12-02 15:12:44,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:44,460 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2024-12-02 15:12:44,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:44,460 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2024-12-02 15:12:44,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-12-02 15:12:44,461 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:44,461 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:44,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 15:12:44,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:12:44,662 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:44,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:44,662 INFO L85 PathProgramCache]: Analyzing trace with hash 551076285, now seen corresponding path program 1 times [2024-12-02 15:12:44,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:12:44,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373125500] [2024-12-02 15:12:44,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:44,663 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:12:44,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:12:44,665 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:12:44,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 15:12:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:44,847 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 15:12:44,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:12:44,894 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:12:44,894 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:12:44,894 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:12:44,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373125500] [2024-12-02 15:12:44,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373125500] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:44,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:44,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 15:12:44,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160415253] [2024-12-02 15:12:44,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:44,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:12:44,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:12:44,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:12:44,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:12:44,896 INFO L87 Difference]: Start difference. First operand 70 states and 96 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:44,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:44,971 INFO L93 Difference]: Finished difference Result 142 states and 196 transitions. [2024-12-02 15:12:44,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:12:44,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-12-02 15:12:44,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:44,973 INFO L225 Difference]: With dead ends: 142 [2024-12-02 15:12:44,973 INFO L226 Difference]: Without dead ends: 75 [2024-12-02 15:12:44,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:12:44,974 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 1 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:44,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 479 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:12:44,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-12-02 15:12:44,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2024-12-02 15:12:44,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 67 states have (on average 1.3432835820895523) internal successors, (90), 67 states have internal predecessors, (90), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 15:12:44,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 100 transitions. [2024-12-02 15:12:44,981 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 100 transitions. Word has length 60 [2024-12-02 15:12:44,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:44,982 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 100 transitions. [2024-12-02 15:12:44,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:44,982 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 100 transitions. [2024-12-02 15:12:44,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-12-02 15:12:44,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:44,983 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:44,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-12-02 15:12:45,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:12:45,184 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:45,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:45,185 INFO L85 PathProgramCache]: Analyzing trace with hash 552923327, now seen corresponding path program 1 times [2024-12-02 15:12:45,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:12:45,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985510672] [2024-12-02 15:12:45,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:45,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:12:45,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:12:45,187 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:12:45,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-12-02 15:12:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:45,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 15:12:45,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:12:45,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 15:12:45,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 15:12:45,422 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 30 treesize of output 1 [2024-12-02 15:12:45,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 15:12:45,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 15:12:45,444 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:12:45,444 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 31 treesize of output 34 [2024-12-02 15:12:45,476 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:12:45,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 47 [2024-12-02 15:12:47,811 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:12:47,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 68 [2024-12-02 15:12:47,926 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:12:47,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 97 treesize of output 43 [2024-12-02 15:12:47,964 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:12:47,964 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:12:47,964 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:12:47,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985510672] [2024-12-02 15:12:47,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985510672] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:12:47,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:12:47,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 15:12:47,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056655147] [2024-12-02 15:12:47,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:12:47,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:12:47,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:12:47,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:12:47,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=27, Unknown=1, NotChecked=0, Total=42 [2024-12-02 15:12:47,966 INFO L87 Difference]: Start difference. First operand 74 states and 100 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:51,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:12:52,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:12:52,597 INFO L93 Difference]: Finished difference Result 216 states and 294 transitions. [2024-12-02 15:12:52,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:12:52,598 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-12-02 15:12:52,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:12:52,599 INFO L225 Difference]: With dead ends: 216 [2024-12-02 15:12:52,599 INFO L226 Difference]: Without dead ends: 145 [2024-12-02 15:12:52,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=26, Invalid=45, Unknown=1, NotChecked=0, Total=72 [2024-12-02 15:12:52,600 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 121 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:12:52,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 390 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 258 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-12-02 15:12:52,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-12-02 15:12:52,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 84. [2024-12-02 15:12:52,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 77 states have (on average 1.3636363636363635) internal successors, (105), 77 states have internal predecessors, (105), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 15:12:52,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 115 transitions. [2024-12-02 15:12:52,608 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 115 transitions. Word has length 60 [2024-12-02 15:12:52,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:12:52,609 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 115 transitions. [2024-12-02 15:12:52,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:12:52,609 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 115 transitions. [2024-12-02 15:12:52,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-12-02 15:12:52,610 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:12:52,610 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:12:52,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-12-02 15:12:52,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:12:52,811 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:12:52,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:12:52,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1136020415, now seen corresponding path program 1 times [2024-12-02 15:12:52,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:12:52,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [247975073] [2024-12-02 15:12:52,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:12:52,812 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:12:52,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:12:52,814 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:12:52,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-12-02 15:12:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:12:52,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 15:12:53,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:12:53,037 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 17 [2024-12-02 15:12:53,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 15:12:53,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 15:12:53,118 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 20 treesize of output 21 [2024-12-02 15:12:58,060 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:12:58,061 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 39 [2024-12-02 15:13:02,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 53 [2024-12-02 15:13:02,795 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:02,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 111 treesize of output 97 [2024-12-02 15:13:02,930 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:02,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 121 treesize of output 114 [2024-12-02 15:13:03,143 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:03,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 161 treesize of output 71 [2024-12-02 15:13:03,207 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 15:13:03,207 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:13:03,207 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:13:03,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [247975073] [2024-12-02 15:13:03,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [247975073] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:13:03,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:13:03,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 15:13:03,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253151803] [2024-12-02 15:13:03,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:13:03,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 15:13:03,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:13:03,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 15:13:03,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=114, Unknown=4, NotChecked=0, Total=156 [2024-12-02 15:13:03,208 INFO L87 Difference]: Start difference. First operand 84 states and 115 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:13:05,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:13:05,270 INFO L93 Difference]: Finished difference Result 343 states and 470 transitions. [2024-12-02 15:13:05,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 15:13:05,271 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2024-12-02 15:13:05,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:13:05,272 INFO L225 Difference]: With dead ends: 343 [2024-12-02 15:13:05,272 INFO L226 Difference]: Without dead ends: 262 [2024-12-02 15:13:05,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=117, Invalid=259, Unknown=4, NotChecked=0, Total=380 [2024-12-02 15:13:05,273 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 571 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:13:05,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 406 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 15:13:05,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-12-02 15:13:05,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 153. [2024-12-02 15:13:05,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 140 states have (on average 1.3571428571428572) internal successors, (190), 140 states have internal predecessors, (190), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 15:13:05,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 210 transitions. [2024-12-02 15:13:05,291 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 210 transitions. Word has length 60 [2024-12-02 15:13:05,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:13:05,291 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 210 transitions. [2024-12-02 15:13:05,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:13:05,291 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 210 transitions. [2024-12-02 15:13:05,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 15:13:05,292 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:13:05,293 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:13:05,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-12-02 15:13:05,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:05,493 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:13:05,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:13:05,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1489190506, now seen corresponding path program 1 times [2024-12-02 15:13:05,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:13:05,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184674322] [2024-12-02 15:13:05,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:13:05,494 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:05,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:13:05,496 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:13:05,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-12-02 15:13:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:13:05,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 15:13:05,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:13:05,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 15:13:06,080 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:06,080 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 132 treesize of output 59 [2024-12-02 15:13:06,098 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:06,098 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 132 treesize of output 59 [2024-12-02 15:13:06,117 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:06,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 144 treesize of output 92 [2024-12-02 15:13:06,190 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:06,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 223 treesize of output 146 [2024-12-02 15:13:06,343 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:06,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 242 treesize of output 155 [2024-12-02 15:13:06,836 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:06,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 432 treesize of output 144 [2024-12-02 15:13:06,914 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 15:13:06,914 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:13:07,168 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:13:07,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184674322] [2024-12-02 15:13:07,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [184674322] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:13:07,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [953199835] [2024-12-02 15:13:07,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:13:07,169 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 15:13:07,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 15:13:07,170 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 15:13:07,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-12-02 15:13:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:13:08,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 15:13:08,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:13:08,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 15:13:09,018 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:09,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 63 [2024-12-02 15:13:09,108 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:09,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 63 [2024-12-02 15:13:09,209 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:09,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 130 treesize of output 90 [2024-12-02 15:13:09,351 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:09,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 194 treesize of output 130 [2024-12-02 15:13:09,571 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:09,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 202 treesize of output 136 [2024-12-02 15:13:10,209 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:10,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 344 treesize of output 148 [2024-12-02 15:13:10,226 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 15:13:10,226 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:13:10,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [953199835] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:13:10,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:13:10,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2024-12-02 15:13:10,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460373356] [2024-12-02 15:13:10,363 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:13:10,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 15:13:10,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:13:10,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 15:13:10,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-12-02 15:13:10,364 INFO L87 Difference]: Start difference. First operand 153 states and 210 transitions. Second operand has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 17 states have internal predecessors, (78), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 15:13:18,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:13:19,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:13:19,308 INFO L93 Difference]: Finished difference Result 555 states and 756 transitions. [2024-12-02 15:13:19,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 15:13:19,309 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 17 states have internal predecessors, (78), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 62 [2024-12-02 15:13:19,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:13:19,311 INFO L225 Difference]: With dead ends: 555 [2024-12-02 15:13:19,311 INFO L226 Difference]: Without dead ends: 405 [2024-12-02 15:13:19,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 152 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=156, Invalid=600, Unknown=0, NotChecked=0, Total=756 [2024-12-02 15:13:19,312 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 576 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:13:19,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 527 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-12-02 15:13:19,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-12-02 15:13:19,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 397. [2024-12-02 15:13:19,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 362 states have (on average 1.339779005524862) internal successors, (485), 366 states have internal predecessors, (485), 28 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 24 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 15:13:19,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 541 transitions. [2024-12-02 15:13:19,347 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 541 transitions. Word has length 62 [2024-12-02 15:13:19,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:13:19,347 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 541 transitions. [2024-12-02 15:13:19,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 17 states have internal predecessors, (78), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 15:13:19,347 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 541 transitions. [2024-12-02 15:13:19,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 15:13:19,348 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:13:19,348 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:13:19,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-12-02 15:13:19,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-12-02 15:13:19,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:19,749 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:13:19,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:13:19,749 INFO L85 PathProgramCache]: Analyzing trace with hash -809132136, now seen corresponding path program 1 times [2024-12-02 15:13:19,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:13:19,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019718720] [2024-12-02 15:13:19,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:13:19,750 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:19,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:13:19,751 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:13:19,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-12-02 15:13:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:13:19,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 15:13:19,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:13:19,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 10 [2024-12-02 15:13:19,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-12-02 15:13:19,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2024-12-02 15:13:19,982 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:13:19,982 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:13:19,982 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:13:19,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019718720] [2024-12-02 15:13:19,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019718720] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:13:19,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:13:19,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:13:19,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028495552] [2024-12-02 15:13:19,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:13:19,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:13:19,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:13:19,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:13:19,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:13:19,984 INFO L87 Difference]: Start difference. First operand 397 states and 541 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:13:20,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:13:20,478 INFO L93 Difference]: Finished difference Result 843 states and 1147 transitions. [2024-12-02 15:13:20,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:13:20,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-12-02 15:13:20,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:13:20,482 INFO L225 Difference]: With dead ends: 843 [2024-12-02 15:13:20,482 INFO L226 Difference]: Without dead ends: 449 [2024-12-02 15:13:20,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:13:20,482 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 71 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:13:20,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 274 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 15:13:20,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-12-02 15:13:20,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 424. [2024-12-02 15:13:20,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 381 states have (on average 1.3175853018372703) internal successors, (502), 387 states have internal predecessors, (502), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 28 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 15:13:20,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 570 transitions. [2024-12-02 15:13:20,507 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 570 transitions. Word has length 62 [2024-12-02 15:13:20,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:13:20,507 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 570 transitions. [2024-12-02 15:13:20,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:13:20,507 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 570 transitions. [2024-12-02 15:13:20,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 15:13:20,508 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:13:20,508 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:13:20,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-12-02 15:13:20,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:20,709 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:13:20,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:13:20,709 INFO L85 PathProgramCache]: Analyzing trace with hash -108067558, now seen corresponding path program 1 times [2024-12-02 15:13:20,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:13:20,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47080523] [2024-12-02 15:13:20,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:13:20,710 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:20,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:13:20,711 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:13:20,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-12-02 15:13:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:13:20,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 15:13:20,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:13:20,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 15:13:21,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-12-02 15:13:21,017 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 32 treesize of output 25 [2024-12-02 15:13:21,043 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:21,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 43 [2024-12-02 15:13:21,082 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:21,082 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 78 [2024-12-02 15:13:21,163 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:21,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 84 treesize of output 87 [2024-12-02 15:13:21,320 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:21,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 137 treesize of output 65 [2024-12-02 15:13:21,369 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:13:21,369 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:13:21,370 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:13:21,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47080523] [2024-12-02 15:13:21,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47080523] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:13:21,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:13:21,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:13:21,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627833227] [2024-12-02 15:13:21,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:13:21,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:13:21,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:13:21,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:13:21,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:13:21,371 INFO L87 Difference]: Start difference. First operand 424 states and 570 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:13:23,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:13:23,485 INFO L93 Difference]: Finished difference Result 1149 states and 1548 transitions. [2024-12-02 15:13:23,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 15:13:23,486 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-12-02 15:13:23,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:13:23,489 INFO L225 Difference]: With dead ends: 1149 [2024-12-02 15:13:23,489 INFO L226 Difference]: Without dead ends: 755 [2024-12-02 15:13:23,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=132, Invalid=374, Unknown=0, NotChecked=0, Total=506 [2024-12-02 15:13:23,491 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 360 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:13:23,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 589 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 15:13:23,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-12-02 15:13:23,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 573. [2024-12-02 15:13:23,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 518 states have (on average 1.305019305019305) internal successors, (676), 525 states have internal predecessors, (676), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 37 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 15:13:23,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 764 transitions. [2024-12-02 15:13:23,554 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 764 transitions. Word has length 62 [2024-12-02 15:13:23,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:13:23,554 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 764 transitions. [2024-12-02 15:13:23,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:13:23,554 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 764 transitions. [2024-12-02 15:13:23,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 15:13:23,556 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:13:23,556 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:13:23,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-12-02 15:13:23,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:23,756 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:13:23,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:13:23,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1066488680, now seen corresponding path program 1 times [2024-12-02 15:13:23,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:13:23,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684908581] [2024-12-02 15:13:23,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:13:23,757 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:23,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:13:23,759 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:13:23,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-12-02 15:13:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:13:23,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 15:13:23,954 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:13:24,007 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:24,008 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 41 [2024-12-02 15:13:24,178 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:24,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 54 [2024-12-02 15:13:24,405 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:24,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 73 [2024-12-02 15:13:26,555 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:26,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 77 treesize of output 82 [2024-12-02 15:13:29,582 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:29,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 84 treesize of output 92 [2024-12-02 15:13:29,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 45 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 108 [2024-12-02 15:13:29,876 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:29,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 113 treesize of output 116 [2024-12-02 15:13:30,099 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:30,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 155 treesize of output 71 [2024-12-02 15:13:30,163 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 15:13:30,163 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:13:30,163 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:13:30,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684908581] [2024-12-02 15:13:30,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684908581] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:13:30,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:13:30,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 15:13:30,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191972917] [2024-12-02 15:13:30,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:13:30,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 15:13:30,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:13:30,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 15:13:30,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=134, Unknown=2, NotChecked=0, Total=182 [2024-12-02 15:13:30,164 INFO L87 Difference]: Start difference. First operand 573 states and 764 transitions. Second operand has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-12-02 15:13:32,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:13:33,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:13:33,427 INFO L93 Difference]: Finished difference Result 1130 states and 1505 transitions. [2024-12-02 15:13:33,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 15:13:33,429 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 62 [2024-12-02 15:13:33,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:13:33,431 INFO L225 Difference]: With dead ends: 1130 [2024-12-02 15:13:33,431 INFO L226 Difference]: Without dead ends: 587 [2024-12-02 15:13:33,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=118, Invalid=260, Unknown=2, NotChecked=0, Total=380 [2024-12-02 15:13:33,432 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 405 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 15:13:33,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 496 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 15:13:33,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-12-02 15:13:33,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 561. [2024-12-02 15:13:33,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 506 states have (on average 1.2924901185770752) internal successors, (654), 513 states have internal predecessors, (654), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 37 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 15:13:33,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 742 transitions. [2024-12-02 15:13:33,471 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 742 transitions. Word has length 62 [2024-12-02 15:13:33,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:13:33,471 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 742 transitions. [2024-12-02 15:13:33,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-12-02 15:13:33,471 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 742 transitions. [2024-12-02 15:13:33,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 15:13:33,473 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:13:33,473 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:13:33,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-12-02 15:13:33,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:33,673 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:13:33,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:13:33,674 INFO L85 PathProgramCache]: Analyzing trace with hash 314634268, now seen corresponding path program 1 times [2024-12-02 15:13:33,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:13:33,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290661017] [2024-12-02 15:13:33,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:13:33,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:33,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:13:33,676 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:13:33,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-12-02 15:13:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:13:33,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 15:13:33,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:13:33,922 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 28 [2024-12-02 15:13:34,045 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:34,045 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 31 [2024-12-02 15:13:34,164 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:34,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 41 [2024-12-02 15:13:37,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:37,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 42 [2024-12-02 15:13:39,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 53 [2024-12-02 15:13:39,877 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:39,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 113 treesize of output 81 [2024-12-02 15:13:39,962 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:39,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 94 treesize of output 88 [2024-12-02 15:13:40,063 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:40,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 108 treesize of output 54 [2024-12-02 15:13:40,126 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 15:13:40,126 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:13:40,126 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:13:40,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290661017] [2024-12-02 15:13:40,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290661017] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:13:40,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:13:40,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 15:13:40,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134524482] [2024-12-02 15:13:40,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:13:40,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:13:40,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:13:40,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:13:40,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=74, Unknown=2, NotChecked=0, Total=110 [2024-12-02 15:13:40,128 INFO L87 Difference]: Start difference. First operand 561 states and 742 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:13:42,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:13:42,271 INFO L93 Difference]: Finished difference Result 1144 states and 1513 transitions. [2024-12-02 15:13:42,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:13:42,272 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-12-02 15:13:42,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:13:42,275 INFO L225 Difference]: With dead ends: 1144 [2024-12-02 15:13:42,275 INFO L226 Difference]: Without dead ends: 613 [2024-12-02 15:13:42,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=72, Invalid=136, Unknown=2, NotChecked=0, Total=210 [2024-12-02 15:13:42,276 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 368 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 15:13:42,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 342 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 15:13:42,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2024-12-02 15:13:42,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 578. [2024-12-02 15:13:42,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 523 states have (on average 1.2944550669216062) internal successors, (677), 530 states have internal predecessors, (677), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 37 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 15:13:42,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 765 transitions. [2024-12-02 15:13:42,346 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 765 transitions. Word has length 62 [2024-12-02 15:13:42,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:13:42,346 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 765 transitions. [2024-12-02 15:13:42,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:13:42,346 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 765 transitions. [2024-12-02 15:13:42,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 15:13:42,347 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:13:42,348 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:13:42,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-12-02 15:13:42,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:42,548 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:13:42,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:13:42,549 INFO L85 PathProgramCache]: Analyzing trace with hash -2077605930, now seen corresponding path program 1 times [2024-12-02 15:13:42,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:13:42,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254935084] [2024-12-02 15:13:42,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:13:42,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:42,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:13:42,551 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:13:42,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-12-02 15:13:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:13:42,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 15:13:42,805 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:13:42,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 15:13:43,130 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:43,131 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 132 treesize of output 59 [2024-12-02 15:13:43,144 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:43,144 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 132 treesize of output 59 [2024-12-02 15:13:43,168 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:43,169 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 196 treesize of output 110 [2024-12-02 15:13:43,268 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:43,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 215 treesize of output 119 [2024-12-02 15:13:43,604 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:43,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 405 treesize of output 135 [2024-12-02 15:13:43,673 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 15:13:43,673 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:13:43,954 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:13:43,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254935084] [2024-12-02 15:13:43,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254935084] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:13:43,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [714347076] [2024-12-02 15:13:43,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:13:43,955 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 15:13:43,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 15:13:43,956 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 15:13:43,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-12-02 15:13:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:13:44,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 15:13:44,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:13:45,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 15:13:45,770 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:45,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 63 [2024-12-02 15:13:45,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:45,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 63 [2024-12-02 15:13:45,840 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:45,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 170 treesize of output 108 [2024-12-02 15:13:46,014 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:46,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 162 treesize of output 126 [2024-12-02 15:13:46,433 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:46,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 304 treesize of output 152 [2024-12-02 15:13:46,453 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 15:13:46,453 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:13:46,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [714347076] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:13:46,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:13:46,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2024-12-02 15:13:46,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936661640] [2024-12-02 15:13:46,607 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:13:46,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 15:13:46,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:13:46,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 15:13:46,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-12-02 15:13:46,608 INFO L87 Difference]: Start difference. First operand 578 states and 765 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 15 states have internal predecessors, (78), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 15:13:51,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:13:51,308 INFO L93 Difference]: Finished difference Result 1143 states and 1505 transitions. [2024-12-02 15:13:51,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 15:13:51,309 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 15 states have internal predecessors, (78), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 62 [2024-12-02 15:13:51,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:13:51,311 INFO L225 Difference]: With dead ends: 1143 [2024-12-02 15:13:51,311 INFO L226 Difference]: Without dead ends: 595 [2024-12-02 15:13:51,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 157 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2024-12-02 15:13:51,312 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 369 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:13:51,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 419 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-12-02 15:13:51,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-12-02 15:13:51,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 475. [2024-12-02 15:13:51,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 435 states have (on average 1.3057471264367817) internal successors, (568), 438 states have internal predecessors, (568), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 27 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 15:13:51,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 628 transitions. [2024-12-02 15:13:51,372 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 628 transitions. Word has length 62 [2024-12-02 15:13:51,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:13:51,372 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 628 transitions. [2024-12-02 15:13:51,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 15 states have internal predecessors, (78), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 15:13:51,373 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 628 transitions. [2024-12-02 15:13:51,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 15:13:51,374 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:13:51,374 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:13:51,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2024-12-02 15:13:51,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-12-02 15:13:51,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:51,774 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:13:51,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:13:51,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1992097180, now seen corresponding path program 1 times [2024-12-02 15:13:51,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:13:51,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242860764] [2024-12-02 15:13:51,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:13:51,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:51,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:13:51,777 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:13:51,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-12-02 15:13:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:13:51,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 15:13:51,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:13:51,948 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:51,948 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 37 treesize of output 17 [2024-12-02 15:13:52,063 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:13:52,064 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:13:52,064 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:13:52,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242860764] [2024-12-02 15:13:52,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242860764] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:13:52,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:13:52,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:13:52,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025552057] [2024-12-02 15:13:52,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:13:52,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:13:52,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:13:52,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:13:52,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:13:52,065 INFO L87 Difference]: Start difference. First operand 475 states and 628 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:13:52,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:13:52,784 INFO L93 Difference]: Finished difference Result 1150 states and 1511 transitions. [2024-12-02 15:13:52,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:13:52,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-12-02 15:13:52,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:13:52,788 INFO L225 Difference]: With dead ends: 1150 [2024-12-02 15:13:52,788 INFO L226 Difference]: Without dead ends: 678 [2024-12-02 15:13:52,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:13:52,789 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 81 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:13:52,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 245 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 15:13:52,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2024-12-02 15:13:52,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 612. [2024-12-02 15:13:52,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 564 states have (on average 1.303191489361702) internal successors, (735), 567 states have internal predecessors, (735), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 15:13:52,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 807 transitions. [2024-12-02 15:13:52,844 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 807 transitions. Word has length 62 [2024-12-02 15:13:52,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:13:52,844 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 807 transitions. [2024-12-02 15:13:52,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:13:52,844 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 807 transitions. [2024-12-02 15:13:52,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 15:13:52,844 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:13:52,844 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:13:52,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-12-02 15:13:53,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:53,045 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:13:53,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:13:53,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1561577064, now seen corresponding path program 1 times [2024-12-02 15:13:53,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:13:53,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1280807119] [2024-12-02 15:13:53,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:13:53,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:53,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:13:53,047 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:13:53,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-12-02 15:13:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:13:53,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:13:53,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:13:53,220 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 15:13:53,220 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:13:53,220 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:13:53,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1280807119] [2024-12-02 15:13:53,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1280807119] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:13:53,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:13:53,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:13:53,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380938587] [2024-12-02 15:13:53,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:13:53,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:13:53,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:13:53,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:13:53,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:13:53,222 INFO L87 Difference]: Start difference. First operand 612 states and 807 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:13:53,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:13:53,292 INFO L93 Difference]: Finished difference Result 1144 states and 1510 transitions. [2024-12-02 15:13:53,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:13:53,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-12-02 15:13:53,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:13:53,294 INFO L225 Difference]: With dead ends: 1144 [2024-12-02 15:13:53,294 INFO L226 Difference]: Without dead ends: 612 [2024-12-02 15:13:53,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:13:53,295 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:13:53,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 262 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:13:53,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2024-12-02 15:13:53,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2024-12-02 15:13:53,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 564 states have (on average 1.2960992907801419) internal successors, (731), 567 states have internal predecessors, (731), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 15:13:53,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 803 transitions. [2024-12-02 15:13:53,366 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 803 transitions. Word has length 62 [2024-12-02 15:13:53,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:13:53,366 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 803 transitions. [2024-12-02 15:13:53,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:13:53,366 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 803 transitions. [2024-12-02 15:13:53,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 15:13:53,367 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:13:53,367 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:13:53,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-12-02 15:13:53,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:53,568 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:13:53,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:13:53,568 INFO L85 PathProgramCache]: Analyzing trace with hash 790882118, now seen corresponding path program 1 times [2024-12-02 15:13:53,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:13:53,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831033047] [2024-12-02 15:13:53,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:13:53,568 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:53,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:13:53,570 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:13:53,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-12-02 15:13:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:13:53,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 15:13:53,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:13:53,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 15:13:53,887 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 16 treesize of output 12 [2024-12-02 15:13:53,895 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 32 treesize of output 25 [2024-12-02 15:13:53,920 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:53,920 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 54 treesize of output 44 [2024-12-02 15:13:53,960 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:53,961 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 77 [2024-12-02 15:13:54,054 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:54,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 92 treesize of output 89 [2024-12-02 15:13:54,698 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:54,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 118 treesize of output 52 [2024-12-02 15:13:54,756 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:13:54,756 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:13:54,756 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:13:54,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831033047] [2024-12-02 15:13:54,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831033047] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:13:54,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:13:54,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 15:13:54,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835992652] [2024-12-02 15:13:54,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:13:54,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 15:13:54,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:13:54,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 15:13:54,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:13:54,758 INFO L87 Difference]: Start difference. First operand 612 states and 803 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:13:57,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:13:57,626 INFO L93 Difference]: Finished difference Result 758 states and 996 transitions. [2024-12-02 15:13:57,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 15:13:57,627 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2024-12-02 15:13:57,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:13:57,628 INFO L225 Difference]: With dead ends: 758 [2024-12-02 15:13:57,628 INFO L226 Difference]: Without dead ends: 756 [2024-12-02 15:13:57,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2024-12-02 15:13:57,629 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 409 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:13:57,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 518 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 15:13:57,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2024-12-02 15:13:57,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 624. [2024-12-02 15:13:57,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 576 states have (on average 1.2899305555555556) internal successors, (743), 579 states have internal predecessors, (743), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 15:13:57,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 815 transitions. [2024-12-02 15:13:57,682 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 815 transitions. Word has length 64 [2024-12-02 15:13:57,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:13:57,682 INFO L471 AbstractCegarLoop]: Abstraction has 624 states and 815 transitions. [2024-12-02 15:13:57,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:13:57,683 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 815 transitions. [2024-12-02 15:13:57,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 15:13:57,683 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:13:57,683 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:13:57,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-12-02 15:13:57,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:57,884 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:13:57,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:13:57,884 INFO L85 PathProgramCache]: Analyzing trace with hash 792729160, now seen corresponding path program 1 times [2024-12-02 15:13:57,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:13:57,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256074614] [2024-12-02 15:13:57,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:13:57,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:13:57,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:13:57,886 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:13:57,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-12-02 15:13:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:13:58,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 15:13:58,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:13:58,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 15:13:58,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 15:13:58,197 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 32 treesize of output 25 [2024-12-02 15:13:58,233 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:58,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 43 [2024-12-02 15:13:58,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:58,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 78 [2024-12-02 15:13:58,381 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:58,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 84 treesize of output 87 [2024-12-02 15:13:59,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:13:59,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 113 treesize of output 65 [2024-12-02 15:13:59,098 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:13:59,098 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:13:59,098 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:13:59,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256074614] [2024-12-02 15:13:59,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256074614] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:13:59,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:13:59,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 15:13:59,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230052524] [2024-12-02 15:13:59,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:13:59,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 15:13:59,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:13:59,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 15:13:59,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-12-02 15:13:59,100 INFO L87 Difference]: Start difference. First operand 624 states and 815 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:14:01,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:14:01,417 INFO L93 Difference]: Finished difference Result 1252 states and 1641 transitions. [2024-12-02 15:14:01,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 15:14:01,417 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2024-12-02 15:14:01,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:14:01,419 INFO L225 Difference]: With dead ends: 1252 [2024-12-02 15:14:01,419 INFO L226 Difference]: Without dead ends: 768 [2024-12-02 15:14:01,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2024-12-02 15:14:01,420 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 412 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:14:01,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 591 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 15:14:01,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2024-12-02 15:14:01,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 636. [2024-12-02 15:14:01,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 588 states have (on average 1.284013605442177) internal successors, (755), 591 states have internal predecessors, (755), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 15:14:01,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 827 transitions. [2024-12-02 15:14:01,469 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 827 transitions. Word has length 64 [2024-12-02 15:14:01,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:14:01,470 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 827 transitions. [2024-12-02 15:14:01,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:14:01,470 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 827 transitions. [2024-12-02 15:14:01,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 15:14:01,470 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:14:01,470 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:14:01,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-12-02 15:14:01,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:14:01,671 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:14:01,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:14:01,671 INFO L85 PathProgramCache]: Analyzing trace with hash 198670215, now seen corresponding path program 1 times [2024-12-02 15:14:01,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:14:01,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283416944] [2024-12-02 15:14:01,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:14:01,672 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:14:01,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:14:01,673 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:14:01,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-12-02 15:14:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:14:01,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:14:01,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:14:01,856 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:01,856 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 103 treesize of output 31 [2024-12-02 15:14:01,870 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:14:01,870 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:14:01,870 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:14:01,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283416944] [2024-12-02 15:14:01,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283416944] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:14:01,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:14:01,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:14:01,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835525453] [2024-12-02 15:14:01,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:14:01,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:14:01,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:14:01,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:14:01,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:14:01,871 INFO L87 Difference]: Start difference. First operand 636 states and 827 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:14:01,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:14:01,933 INFO L93 Difference]: Finished difference Result 1196 states and 1553 transitions. [2024-12-02 15:14:01,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:14:01,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2024-12-02 15:14:01,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:14:01,935 INFO L225 Difference]: With dead ends: 1196 [2024-12-02 15:14:01,935 INFO L226 Difference]: Without dead ends: 636 [2024-12-02 15:14:01,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:14:01,936 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:14:01,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:14:01,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-12-02 15:14:01,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 636. [2024-12-02 15:14:01,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 588 states have (on average 1.2636054421768708) internal successors, (743), 591 states have internal predecessors, (743), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 15:14:01,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 815 transitions. [2024-12-02 15:14:01,984 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 815 transitions. Word has length 64 [2024-12-02 15:14:01,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:14:01,985 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 815 transitions. [2024-12-02 15:14:01,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:14:01,985 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 815 transitions. [2024-12-02 15:14:01,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 15:14:01,985 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:14:01,986 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:14:01,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-12-02 15:14:02,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:14:02,186 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:14:02,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:14:02,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1795474491, now seen corresponding path program 1 times [2024-12-02 15:14:02,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:14:02,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318155551] [2024-12-02 15:14:02,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:14:02,187 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:14:02,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:14:02,188 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:14:02,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-12-02 15:14:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:14:02,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 15:14:02,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:14:02,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 15:14:02,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-12-02 15:14:02,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-12-02 15:14:02,487 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:14:02,487 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:14:02,487 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:14:02,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318155551] [2024-12-02 15:14:02,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318155551] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:14:02,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:14:02,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:14:02,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037457693] [2024-12-02 15:14:02,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:14:02,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:14:02,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:14:02,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:14:02,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:14:02,489 INFO L87 Difference]: Start difference. First operand 636 states and 815 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:14:03,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:14:03,001 INFO L93 Difference]: Finished difference Result 1420 states and 1809 transitions. [2024-12-02 15:14:03,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:14:03,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2024-12-02 15:14:03,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:14:03,004 INFO L225 Difference]: With dead ends: 1420 [2024-12-02 15:14:03,004 INFO L226 Difference]: Without dead ends: 856 [2024-12-02 15:14:03,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:14:03,005 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 63 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:14:03,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 233 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 15:14:03,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2024-12-02 15:14:03,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 610. [2024-12-02 15:14:03,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 562 states have (on average 1.2473309608540926) internal successors, (701), 565 states have internal predecessors, (701), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 15:14:03,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 773 transitions. [2024-12-02 15:14:03,069 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 773 transitions. Word has length 64 [2024-12-02 15:14:03,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:14:03,070 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 773 transitions. [2024-12-02 15:14:03,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:14:03,070 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 773 transitions. [2024-12-02 15:14:03,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 15:14:03,070 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:14:03,071 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:14:03,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-12-02 15:14:03,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:14:03,271 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:14:03,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:14:03,271 INFO L85 PathProgramCache]: Analyzing trace with hash 651977882, now seen corresponding path program 1 times [2024-12-02 15:14:03,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:14:03,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1443448105] [2024-12-02 15:14:03,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:14:03,272 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 15:14:03,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:14:03,273 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:14:03,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-12-02 15:14:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:14:03,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 15:14:03,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:14:03,489 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 15:14:03,489 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:14:03,490 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:14:03,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1443448105] [2024-12-02 15:14:03,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1443448105] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:14:03,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:14:03,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:14:03,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544501095] [2024-12-02 15:14:03,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:14:03,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:14:03,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:14:03,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:14:03,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:14:03,491 INFO L87 Difference]: Start difference. First operand 610 states and 773 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:14:03,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:14:03,617 INFO L93 Difference]: Finished difference Result 1163 states and 1476 transitions. [2024-12-02 15:14:03,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:14:03,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2024-12-02 15:14:03,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:14:03,619 INFO L225 Difference]: With dead ends: 1163 [2024-12-02 15:14:03,619 INFO L226 Difference]: Without dead ends: 624 [2024-12-02 15:14:03,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:14:03,620 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 1 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:14:03,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 395 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:14:03,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-12-02 15:14:03,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 610. [2024-12-02 15:14:03,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 562 states have (on average 1.2402135231316727) internal successors, (697), 565 states have internal predecessors, (697), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 15:14:03,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 769 transitions. [2024-12-02 15:14:03,694 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 769 transitions. Word has length 64 [2024-12-02 15:14:03,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:14:03,694 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 769 transitions. [2024-12-02 15:14:03,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:14:03,695 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 769 transitions. [2024-12-02 15:14:03,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 15:14:03,695 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:14:03,695 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:14:03,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-12-02 15:14:03,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:14:03,896 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:14:03,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:14:03,896 INFO L85 PathProgramCache]: Analyzing trace with hash 377218268, now seen corresponding path program 1 times [2024-12-02 15:14:03,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:14:03,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801539055] [2024-12-02 15:14:03,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:14:03,896 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:14:03,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:14:03,898 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:14:03,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-12-02 15:14:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:14:04,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 15:14:04,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:14:04,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 15:14:04,535 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:04,535 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 130 treesize of output 57 [2024-12-02 15:14:04,549 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:04,549 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 130 treesize of output 57 [2024-12-02 15:14:04,564 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:04,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 142 treesize of output 90 [2024-12-02 15:14:04,642 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:04,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 221 treesize of output 144 [2024-12-02 15:14:04,794 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:04,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 240 treesize of output 153 [2024-12-02 15:14:05,248 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:05,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 430 treesize of output 142 [2024-12-02 15:14:05,325 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 15:14:05,325 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:14:05,699 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:14:05,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801539055] [2024-12-02 15:14:05,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801539055] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:14:05,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [970706285] [2024-12-02 15:14:05,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:14:05,700 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 15:14:05,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 15:14:05,701 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 15:14:05,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2024-12-02 15:14:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:14:06,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 15:14:06,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:14:06,874 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 8 treesize of output 4 [2024-12-02 15:14:07,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 15:14:14,921 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:14,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 61 [2024-12-02 15:14:15,042 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:15,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 61 [2024-12-02 15:14:15,168 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:15,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 128 treesize of output 88 [2024-12-02 15:14:15,326 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:15,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 192 treesize of output 128 [2024-12-02 15:14:15,761 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:15,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 173 treesize of output 143 [2024-12-02 15:14:16,311 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:16,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 315 treesize of output 155 [2024-12-02 15:14:16,337 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 15:14:16,338 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:14:16,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [970706285] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:14:16,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:14:16,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 24 [2024-12-02 15:14:16,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490997669] [2024-12-02 15:14:16,526 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:14:16,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 15:14:16,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:14:16,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 15:14:16,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=620, Unknown=1, NotChecked=0, Total=756 [2024-12-02 15:14:16,527 INFO L87 Difference]: Start difference. First operand 610 states and 769 transitions. Second operand has 25 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 22 states have internal predecessors, (82), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 15:14:26,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:14:26,796 INFO L93 Difference]: Finished difference Result 1111 states and 1394 transitions. [2024-12-02 15:14:26,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 15:14:26,797 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 22 states have internal predecessors, (82), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 64 [2024-12-02 15:14:26,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:14:26,799 INFO L225 Difference]: With dead ends: 1111 [2024-12-02 15:14:26,799 INFO L226 Difference]: Without dead ends: 741 [2024-12-02 15:14:26,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 148 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=428, Invalid=1551, Unknown=1, NotChecked=0, Total=1980 [2024-12-02 15:14:26,800 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 429 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:14:26,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 819 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2024-12-02 15:14:26,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-12-02 15:14:26,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 466. [2024-12-02 15:14:26,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 429 states have (on average 1.2307692307692308) internal successors, (528), 429 states have internal predecessors, (528), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 15:14:26,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 576 transitions. [2024-12-02 15:14:26,870 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 576 transitions. Word has length 64 [2024-12-02 15:14:26,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:14:26,870 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 576 transitions. [2024-12-02 15:14:26,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 22 states have internal predecessors, (82), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 15:14:26,871 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 576 transitions. [2024-12-02 15:14:26,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 15:14:26,871 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:14:26,871 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:14:26,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-12-02 15:14:27,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2024-12-02 15:14:27,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 15:14:27,272 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:14:27,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:14:27,272 INFO L85 PathProgramCache]: Analyzing trace with hash -211197156, now seen corresponding path program 1 times [2024-12-02 15:14:27,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:14:27,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322685158] [2024-12-02 15:14:27,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:14:27,273 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:14:27,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:14:27,274 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:14:27,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-12-02 15:14:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:14:27,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 15:14:27,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:14:27,549 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 30 treesize of output 1 [2024-12-02 15:14:27,882 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:27,882 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 130 treesize of output 57 [2024-12-02 15:14:27,898 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:27,898 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 130 treesize of output 57 [2024-12-02 15:14:27,932 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:27,933 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 194 treesize of output 108 [2024-12-02 15:14:28,112 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:28,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 213 treesize of output 117 [2024-12-02 15:14:28,502 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:28,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 403 treesize of output 133 [2024-12-02 15:14:28,574 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 15:14:28,575 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:14:28,955 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:14:28,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322685158] [2024-12-02 15:14:28,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322685158] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:14:28,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [188917309] [2024-12-02 15:14:28,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:14:28,956 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 15:14:28,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 15:14:28,958 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 15:14:28,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-12-02 15:14:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:14:30,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 15:14:30,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:14:30,140 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 8 treesize of output 4 [2024-12-02 15:14:30,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 15:14:37,400 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:37,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 61 [2024-12-02 15:14:37,554 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:37,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 61 [2024-12-02 15:14:37,707 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:37,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 98 [2024-12-02 15:14:37,938 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:37,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 113 [2024-12-02 15:14:38,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:38,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 294 treesize of output 146 [2024-12-02 15:14:38,419 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 15:14:38,419 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:14:38,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [188917309] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:14:38,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:14:38,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 22 [2024-12-02 15:14:38,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041143024] [2024-12-02 15:14:38,585 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:14:38,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 15:14:38,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:14:38,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 15:14:38,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=532, Unknown=1, NotChecked=0, Total=650 [2024-12-02 15:14:38,586 INFO L87 Difference]: Start difference. First operand 466 states and 576 transitions. Second operand has 23 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 20 states have internal predecessors, (82), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 15:14:45,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:14:47,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:14:47,998 INFO L93 Difference]: Finished difference Result 1027 states and 1278 transitions. [2024-12-02 15:14:47,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 15:14:47,999 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 20 states have internal predecessors, (82), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 64 [2024-12-02 15:14:47,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:14:48,000 INFO L225 Difference]: With dead ends: 1027 [2024-12-02 15:14:48,000 INFO L226 Difference]: Without dead ends: 663 [2024-12-02 15:14:48,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 150 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=377, Invalid=1344, Unknown=1, NotChecked=0, Total=1722 [2024-12-02 15:14:48,002 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 343 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-12-02 15:14:48,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 570 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-12-02 15:14:48,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2024-12-02 15:14:48,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 337. [2024-12-02 15:14:48,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 308 states have (on average 1.224025974025974) internal successors, (377), 308 states have internal predecessors, (377), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 15:14:48,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 417 transitions. [2024-12-02 15:14:48,047 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 417 transitions. Word has length 64 [2024-12-02 15:14:48,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:14:48,047 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 417 transitions. [2024-12-02 15:14:48,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 20 states have internal predecessors, (82), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-12-02 15:14:48,048 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 417 transitions. [2024-12-02 15:14:48,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 15:14:48,048 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:14:48,048 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:14:48,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-12-02 15:14:48,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2024-12-02 15:14:48,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 15:14:48,449 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:14:48,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:14:48,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1679163442, now seen corresponding path program 1 times [2024-12-02 15:14:48,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:14:48,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475724386] [2024-12-02 15:14:48,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:14:48,449 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 15:14:48,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:14:48,451 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:14:48,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-12-02 15:14:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:14:48,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:14:48,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:14:48,678 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:48,678 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 103 treesize of output 31 [2024-12-02 15:14:48,697 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:14:48,697 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:14:48,697 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:14:48,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475724386] [2024-12-02 15:14:48,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475724386] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:14:48,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:14:48,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:14:48,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678282493] [2024-12-02 15:14:48,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:14:48,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:14:48,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:14:48,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:14:48,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:14:48,699 INFO L87 Difference]: Start difference. First operand 337 states and 417 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:14:48,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:14:48,917 INFO L93 Difference]: Finished difference Result 559 states and 700 transitions. [2024-12-02 15:14:48,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:14:48,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 67 [2024-12-02 15:14:48,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:14:48,920 INFO L225 Difference]: With dead ends: 559 [2024-12-02 15:14:48,920 INFO L226 Difference]: Without dead ends: 337 [2024-12-02 15:14:48,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:14:48,922 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:14:48,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:14:48,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-12-02 15:14:48,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2024-12-02 15:14:48,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 308 states have (on average 1.2077922077922079) internal successors, (372), 308 states have internal predecessors, (372), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 15:14:48,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 412 transitions. [2024-12-02 15:14:48,980 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 412 transitions. Word has length 67 [2024-12-02 15:14:48,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:14:48,980 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 412 transitions. [2024-12-02 15:14:48,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:14:48,980 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 412 transitions. [2024-12-02 15:14:48,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 15:14:48,981 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:14:48,981 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:14:48,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-12-02 15:14:49,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:14:49,181 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:14:49,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:14:49,181 INFO L85 PathProgramCache]: Analyzing trace with hash 810365520, now seen corresponding path program 1 times [2024-12-02 15:14:49,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:14:49,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650304321] [2024-12-02 15:14:49,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:14:49,182 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:14:49,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:14:49,183 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:14:49,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-12-02 15:14:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:14:49,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 15:14:49,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:14:49,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 15:14:49,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 15:14:49,571 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:49,571 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 51 treesize of output 27 [2024-12-02 15:14:49,640 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:49,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 15:14:49,652 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:49,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 15:14:49,666 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:49,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 60 [2024-12-02 15:14:49,711 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:49,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 84 treesize of output 73 [2024-12-02 15:14:49,821 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:49,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 77 treesize of output 85 [2024-12-02 15:14:50,001 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:50,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 117 treesize of output 51 [2024-12-02 15:14:50,051 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 15:14:50,052 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:14:50,052 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:14:50,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1650304321] [2024-12-02 15:14:50,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1650304321] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:14:50,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:14:50,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 15:14:50,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317821227] [2024-12-02 15:14:50,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:14:50,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:14:50,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:14:50,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:14:50,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:14:50,052 INFO L87 Difference]: Start difference. First operand 337 states and 412 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:14:51,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:14:51,629 INFO L93 Difference]: Finished difference Result 674 states and 827 transitions. [2024-12-02 15:14:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 15:14:51,630 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 67 [2024-12-02 15:14:51,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:14:51,632 INFO L225 Difference]: With dead ends: 674 [2024-12-02 15:14:51,632 INFO L226 Difference]: Without dead ends: 476 [2024-12-02 15:14:51,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:14:51,632 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 286 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:14:51,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 297 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 15:14:51,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-12-02 15:14:51,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 343. [2024-12-02 15:14:51,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 314 states have (on average 1.2070063694267517) internal successors, (379), 314 states have internal predecessors, (379), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 15:14:51,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 419 transitions. [2024-12-02 15:14:51,677 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 419 transitions. Word has length 67 [2024-12-02 15:14:51,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:14:51,677 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 419 transitions. [2024-12-02 15:14:51,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:14:51,677 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 419 transitions. [2024-12-02 15:14:51,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 15:14:51,677 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:14:51,677 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:14:51,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2024-12-02 15:14:51,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:14:51,878 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:14:51,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:14:51,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1400090603, now seen corresponding path program 1 times [2024-12-02 15:14:51,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:14:51,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1756456077] [2024-12-02 15:14:51,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:14:51,878 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:14:51,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:14:51,880 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:14:51,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-12-02 15:14:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:14:52,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:14:52,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:14:52,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:52,107 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 103 treesize of output 31 [2024-12-02 15:14:52,126 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 15:14:52,126 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:14:52,126 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:14:52,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1756456077] [2024-12-02 15:14:52,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1756456077] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:14:52,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:14:52,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:14:52,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232139191] [2024-12-02 15:14:52,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:14:52,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:14:52,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:14:52,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:14:52,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:14:52,127 INFO L87 Difference]: Start difference. First operand 343 states and 419 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:14:52,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:14:52,369 INFO L93 Difference]: Finished difference Result 546 states and 670 transitions. [2024-12-02 15:14:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:14:52,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2024-12-02 15:14:52,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:14:52,371 INFO L225 Difference]: With dead ends: 546 [2024-12-02 15:14:52,371 INFO L226 Difference]: Without dead ends: 329 [2024-12-02 15:14:52,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:14:52,372 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 1 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:14:52,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 206 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:14:52,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-12-02 15:14:52,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2024-12-02 15:14:52,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 300 states have (on average 1.18) internal successors, (354), 300 states have internal predecessors, (354), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 15:14:52,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 394 transitions. [2024-12-02 15:14:52,418 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 394 transitions. Word has length 69 [2024-12-02 15:14:52,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:14:52,419 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 394 transitions. [2024-12-02 15:14:52,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:14:52,419 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 394 transitions. [2024-12-02 15:14:52,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 15:14:52,419 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:14:52,419 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1] [2024-12-02 15:14:52,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-12-02 15:14:52,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:14:52,620 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:14:52,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:14:52,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1767926430, now seen corresponding path program 1 times [2024-12-02 15:14:52,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:14:52,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019563315] [2024-12-02 15:14:52,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:14:52,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:14:52,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:14:52,622 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:14:52,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-12-02 15:14:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:14:52,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 15:14:52,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:14:52,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 15:14:54,693 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:54,693 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 96 treesize of output 40 [2024-12-02 15:14:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 135 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-12-02 15:14:56,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:14:59,105 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:14:59,105 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 100 treesize of output 1 [2024-12-02 15:14:59,121 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 15:14:59,121 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:14:59,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019563315] [2024-12-02 15:14:59,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019563315] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:14:59,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:14:59,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [16] total 30 [2024-12-02 15:14:59,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544246594] [2024-12-02 15:14:59,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:14:59,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 15:14:59,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:14:59,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 15:14:59,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=720, Unknown=0, NotChecked=0, Total=870 [2024-12-02 15:14:59,123 INFO L87 Difference]: Start difference. First operand 329 states and 394 transitions. Second operand has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 15:15:08,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:15:08,351 INFO L93 Difference]: Finished difference Result 842 states and 1005 transitions. [2024-12-02 15:15:08,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-12-02 15:15:08,352 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 123 [2024-12-02 15:15:08,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:15:08,353 INFO L225 Difference]: With dead ends: 842 [2024-12-02 15:15:08,353 INFO L226 Difference]: Without dead ends: 587 [2024-12-02 15:15:08,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 690 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=555, Invalid=2751, Unknown=0, NotChecked=0, Total=3306 [2024-12-02 15:15:08,355 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 402 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:15:08,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 545 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 15:15:08,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-12-02 15:15:08,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 429. [2024-12-02 15:15:08,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 386 states have (on average 1.1735751295336787) internal successors, (453), 386 states have internal predecessors, (453), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 15:15:08,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 513 transitions. [2024-12-02 15:15:08,428 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 513 transitions. Word has length 123 [2024-12-02 15:15:08,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:15:08,428 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 513 transitions. [2024-12-02 15:15:08,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 15:15:08,429 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 513 transitions. [2024-12-02 15:15:08,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 15:15:08,430 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:15:08,430 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1] [2024-12-02 15:15:08,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-12-02 15:15:08,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:15:08,630 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:15:08,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:15:08,631 INFO L85 PathProgramCache]: Analyzing trace with hash -792936416, now seen corresponding path program 1 times [2024-12-02 15:15:08,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:15:08,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671689848] [2024-12-02 15:15:08,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:15:08,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:15:08,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:15:08,633 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:15:08,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:15:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:15:09,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-12-02 15:15:09,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:15:09,044 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 17 [2024-12-02 15:15:09,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 15:15:09,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 15:15:09,102 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 30 treesize of output 1 [2024-12-02 15:15:09,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 15:15:09,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 29 [2024-12-02 15:15:09,215 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:15:09,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 67 [2024-12-02 15:15:09,287 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:15:09,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 102 [2024-12-02 15:15:09,415 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:15:09,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 105 treesize of output 111 [2024-12-02 15:15:11,082 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:15:11,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 125 treesize of output 63 [2024-12-02 15:15:11,712 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 135 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-12-02 15:15:11,712 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:15:13,099 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 15:15:13,099 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:15:13,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671689848] [2024-12-02 15:15:13,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671689848] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:15:13,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:15:13,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [16] total 29 [2024-12-02 15:15:13,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911538507] [2024-12-02 15:15:13,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:15:13,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 15:15:13,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:15:13,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 15:15:13,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2024-12-02 15:15:13,101 INFO L87 Difference]: Start difference. First operand 429 states and 513 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 15:15:16,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:15:16,662 INFO L93 Difference]: Finished difference Result 883 states and 1055 transitions. [2024-12-02 15:15:16,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 15:15:16,663 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 123 [2024-12-02 15:15:16,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:15:16,665 INFO L225 Difference]: With dead ends: 883 [2024-12-02 15:15:16,665 INFO L226 Difference]: Without dead ends: 679 [2024-12-02 15:15:16,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 217 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=358, Invalid=1534, Unknown=0, NotChecked=0, Total=1892 [2024-12-02 15:15:16,666 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 418 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:15:16,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 443 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-12-02 15:15:16,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-12-02 15:15:16,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 430. [2024-12-02 15:15:16,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 387 states have (on average 1.1757105943152455) internal successors, (455), 387 states have internal predecessors, (455), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 15:15:16,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 515 transitions. [2024-12-02 15:15:16,738 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 515 transitions. Word has length 123 [2024-12-02 15:15:16,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:15:16,739 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 515 transitions. [2024-12-02 15:15:16,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 15:15:16,739 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 515 transitions. [2024-12-02 15:15:16,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 15:15:16,739 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:15:16,739 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1] [2024-12-02 15:15:16,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:15:16,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:15:16,940 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:15:16,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:15:16,940 INFO L85 PathProgramCache]: Analyzing trace with hash 773821534, now seen corresponding path program 1 times [2024-12-02 15:15:16,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:15:16,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988739786] [2024-12-02 15:15:16,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:15:16,941 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:15:16,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:15:16,942 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:15:16,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-12-02 15:15:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:15:17,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 15:15:17,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:15:17,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 15:15:17,417 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 19 treesize of output 19 [2024-12-02 15:15:17,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:15:17,438 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 60 treesize of output 30 [2024-12-02 15:15:17,456 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-12-02 15:15:17,456 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:15:17,456 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:15:17,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988739786] [2024-12-02 15:15:17,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [988739786] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:15:17,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:15:17,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:15:17,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690554956] [2024-12-02 15:15:17,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:15:17,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:15:17,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:15:17,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:15:17,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:15:17,457 INFO L87 Difference]: Start difference. First operand 430 states and 515 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:15:17,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:15:17,791 INFO L93 Difference]: Finished difference Result 644 states and 779 transitions. [2024-12-02 15:15:17,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:15:17,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 123 [2024-12-02 15:15:17,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:15:17,793 INFO L225 Difference]: With dead ends: 644 [2024-12-02 15:15:17,793 INFO L226 Difference]: Without dead ends: 436 [2024-12-02 15:15:17,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:15:17,794 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 39 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:15:17,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 225 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:15:17,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-12-02 15:15:17,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 430. [2024-12-02 15:15:17,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 387 states have (on average 1.1705426356589148) internal successors, (453), 387 states have internal predecessors, (453), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 15:15:17,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 513 transitions. [2024-12-02 15:15:17,860 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 513 transitions. Word has length 123 [2024-12-02 15:15:17,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:15:17,861 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 513 transitions. [2024-12-02 15:15:17,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:15:17,861 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 513 transitions. [2024-12-02 15:15:17,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 15:15:17,861 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:15:17,861 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1] [2024-12-02 15:15:17,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-12-02 15:15:18,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:15:18,062 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:15:18,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:15:18,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1299010039, now seen corresponding path program 1 times [2024-12-02 15:15:18,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:15:18,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728315395] [2024-12-02 15:15:18,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:15:18,063 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:15:18,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:15:18,064 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:15:18,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:15:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:15:18,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-12-02 15:15:18,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:15:18,573 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 21 treesize of output 9 [2024-12-02 15:15:18,626 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 16 treesize of output 12 [2024-12-02 15:15:18,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 15:15:18,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 14 [2024-12-02 15:15:18,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-12-02 15:15:18,920 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 55 treesize of output 37 [2024-12-02 15:15:18,923 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:15:18,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 37 treesize of output 17 [2024-12-02 15:15:18,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 15:15:19,041 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 30 treesize of output 1 [2024-12-02 15:15:19,114 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 33 [2024-12-02 15:15:19,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2024-12-02 15:15:19,225 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:15:19,225 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 121 treesize of output 90 [2024-12-02 15:15:19,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 21 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 155 [2024-12-02 15:15:19,771 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 134 proven. 4 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-12-02 15:15:19,771 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:15:26,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 15:15:33,538 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 15:15:33,539 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:15:33,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728315395] [2024-12-02 15:15:33,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [728315395] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:15:33,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:15:33,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [14] total 26 [2024-12-02 15:15:33,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187403197] [2024-12-02 15:15:33,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:15:33,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 15:15:33,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:15:33,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 15:15:33,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2024-12-02 15:15:33,540 INFO L87 Difference]: Start difference. First operand 430 states and 513 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 15:15:37,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.26s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:15:40,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:15:44,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:15:48,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:15:52,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:15:55,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.35s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:15:59,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:00,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:03,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:04,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:07,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:12,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:15,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:17,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:19,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:21,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:23,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:24,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:26,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:28,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:32,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:36,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:40,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:46,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:50,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:52,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:55,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:16:58,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:17:01,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:17:03,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:17:07,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:17:10,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:17:12,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:17:14,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:17:24,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.73s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:17:26,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:17:30,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:17:34,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:17:39,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:17:41,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:17:44,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:17:46,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:17:58,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:18:00,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:18:04,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:18:19,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:18:23,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.82s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 15:18:28,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:18:28,678 INFO L93 Difference]: Finished difference Result 1025 states and 1228 transitions. [2024-12-02 15:18:28,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 15:18:28,681 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 125 [2024-12-02 15:18:28,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:18:28,683 INFO L225 Difference]: With dead ends: 1025 [2024-12-02 15:18:28,683 INFO L226 Difference]: Without dead ends: 817 [2024-12-02 15:18:28,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 232 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 32.0s TimeCoverageRelationStatistics Valid=339, Invalid=1467, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 15:18:28,684 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 533 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 139 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 153.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 154.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:18:28,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 590 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 719 Invalid, 11 Unknown, 0 Unchecked, 154.3s Time] [2024-12-02 15:18:28,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2024-12-02 15:18:28,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 435. [2024-12-02 15:18:28,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 392 states have (on average 1.1709183673469388) internal successors, (459), 392 states have internal predecessors, (459), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 15:18:28,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 519 transitions. [2024-12-02 15:18:28,773 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 519 transitions. Word has length 125 [2024-12-02 15:18:28,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:18:28,774 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 519 transitions. [2024-12-02 15:18:28,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 15:18:28,774 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 519 transitions. [2024-12-02 15:18:28,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 15:18:28,774 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:18:28,775 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1] [2024-12-02 15:18:28,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 15:18:28,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:18:28,975 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:18:28,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:18:28,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1721711865, now seen corresponding path program 1 times [2024-12-02 15:18:28,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:18:28,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780495727] [2024-12-02 15:18:28,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:18:28,976 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:18:28,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:18:28,978 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:18:28,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:18:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:18:29,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-12-02 15:18:29,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:18:29,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 15:18:29,589 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 16 treesize of output 12 [2024-12-02 15:18:29,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 15:18:29,614 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 44 [2024-12-02 15:18:29,680 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:18:29,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 53 [2024-12-02 15:18:30,521 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 85 treesize of output 61 [2024-12-02 15:18:30,531 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:18:30,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 61 treesize of output 29 [2024-12-02 15:18:30,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 15:18:30,760 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 34 [2024-12-02 15:18:35,264 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:18:35,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 88 [2024-12-02 15:18:35,382 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:18:35,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 103 treesize of output 102 [2024-12-02 15:18:35,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 36 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 135 [2024-12-02 15:18:35,800 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:18:35,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 155 treesize of output 149 [2024-12-02 15:18:36,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:18:36,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 169 treesize of output 79 [2024-12-02 15:18:36,333 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 161 proven. 9 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 15:18:36,334 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:18:45,890 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:18:45,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780495727] [2024-12-02 15:18:45,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780495727] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:18:45,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [545858175] [2024-12-02 15:18:45,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:18:45,890 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 15:18:45,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 15:18:45,892 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 15:18:45,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2024-12-02 15:18:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:18:47,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 15:18:47,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:18:47,760 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:18:47,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 15:18:52,371 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:18:52,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 43 [2024-12-02 15:18:52,900 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:18:52,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 48 [2024-12-02 15:18:53,223 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:18:53,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 56 [2024-12-02 15:18:58,247 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:18:58,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 103 treesize of output 76 [2024-12-02 15:18:58,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:18:58,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 73 [2024-12-02 15:18:59,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 21 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 91 [2024-12-02 15:19:00,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:19:00,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 115 treesize of output 99 [2024-12-02 15:19:01,101 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:19:01,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 123 treesize of output 75 [2024-12-02 15:19:01,219 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 144 proven. 10 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-12-02 15:19:01,219 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:19:02,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [545858175] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:19:02,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:19:02,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 37 [2024-12-02 15:19:02,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003853556] [2024-12-02 15:19:02,572 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 15:19:02,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-12-02 15:19:02,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:19:02,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-12-02 15:19:02,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1873, Unknown=2, NotChecked=0, Total=2070 [2024-12-02 15:19:02,574 INFO L87 Difference]: Start difference. First operand 435 states and 519 transitions. Second operand has 38 states, 38 states have (on average 4.131578947368421) internal successors, (157), 37 states have internal predecessors, (157), 7 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-12-02 15:19:12,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:19:20,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.79s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:19:24,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:19:28,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:19:32,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.87s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:19:36,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:19:40,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.96s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:19:44,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:19:48,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:19:52,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:19:56,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:20:07,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:20:11,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:20:15,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:20:19,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:20:23,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:20:27,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:20:31,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:20:35,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.77s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:20:39,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:20:43,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:20:47,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:20:51,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:20:54,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:20:58,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:21:02,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:21:06,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:21:37,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.83s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:21:50,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.93s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:21:58,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.95s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:22:06,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:22:20,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.89s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:22:24,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:22:32,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:22:32,018 INFO L93 Difference]: Finished difference Result 1261 states and 1513 transitions. [2024-12-02 15:22:32,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-12-02 15:22:32,019 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 4.131578947368421) internal successors, (157), 37 states have internal predecessors, (157), 7 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 125 [2024-12-02 15:22:32,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:22:32,021 INFO L225 Difference]: With dead ends: 1261 [2024-12-02 15:22:32,021 INFO L226 Difference]: Without dead ends: 1048 [2024-12-02 15:22:32,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 258 SyntacticMatches, 2 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2727 ImplicationChecksByTransitivity, 87.7s TimeCoverageRelationStatistics Valid=1403, Invalid=8683, Unknown=14, NotChecked=0, Total=10100 [2024-12-02 15:22:32,023 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 1100 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 3171 mSolverCounterSat, 252 mSolverCounterUnsat, 33 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 145.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 3456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 3171 IncrementalHoareTripleChecker+Invalid, 33 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 146.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:22:32,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1100 Valid, 1623 Invalid, 3456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 3171 Invalid, 33 Unknown, 0 Unchecked, 146.7s Time] [2024-12-02 15:22:32,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2024-12-02 15:22:32,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 814. [2024-12-02 15:22:32,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 744 states have (on average 1.178763440860215) internal successors, (877), 746 states have internal predecessors, (877), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 15:22:32,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 973 transitions. [2024-12-02 15:22:32,188 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 973 transitions. Word has length 125 [2024-12-02 15:22:32,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:22:32,188 INFO L471 AbstractCegarLoop]: Abstraction has 814 states and 973 transitions. [2024-12-02 15:22:32,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 4.131578947368421) internal successors, (157), 37 states have internal predecessors, (157), 7 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-12-02 15:22:32,188 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 973 transitions. [2024-12-02 15:22:32,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 15:22:32,189 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:22:32,189 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1] [2024-12-02 15:22:32,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2024-12-02 15:22:32,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2024-12-02 15:22:32,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 15:22:32,590 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:22:32,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:22:32,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1164996533, now seen corresponding path program 1 times [2024-12-02 15:22:32,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:22:32,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084426242] [2024-12-02 15:22:32,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:22:32,591 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 15:22:32,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:22:32,593 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:22:32,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 15:22:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:22:33,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-12-02 15:22:33,013 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:22:33,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 15:22:33,621 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 59 treesize of output 41 [2024-12-02 15:22:33,624 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:22:33,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2024-12-02 15:22:33,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 15:22:34,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2024-12-02 15:22:38,690 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:22:38,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 63 [2024-12-02 15:22:38,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2024-12-02 15:22:39,256 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:22:39,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 128 treesize of output 109 [2024-12-02 15:22:39,277 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 167 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 15:22:39,277 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:22:41,860 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:22:41,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084426242] [2024-12-02 15:22:41,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084426242] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:22:41,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1613499245] [2024-12-02 15:22:41,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:22:41,860 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 15:22:41,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 15:22:41,862 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 15:22:41,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-12-02 15:22:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:22:43,356 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-12-02 15:22:43,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:22:43,547 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:22:43,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 15:22:48,928 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:22:48,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 103 treesize of output 65 [2024-12-02 15:22:49,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:22:49,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 92 treesize of output 73 [2024-12-02 15:22:54,615 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:22:54,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 92 [2024-12-02 15:23:01,092 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:01,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 129 treesize of output 111 [2024-12-02 15:23:01,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 108 [2024-12-02 15:23:01,964 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:01,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 153 treesize of output 134 [2024-12-02 15:23:01,989 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 167 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 15:23:01,989 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:23:31,922 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-12-02 15:23:31,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1613499245] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:31,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:23:31,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19, 23] total 47 [2024-12-02 15:23:31,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730191707] [2024-12-02 15:23:31,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:31,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:23:31,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:23:31,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:23:31,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=2517, Unknown=10, NotChecked=0, Total=2756 [2024-12-02 15:23:31,924 INFO L87 Difference]: Start difference. First operand 814 states and 973 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:23:36,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:23:40,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:23:44,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:23:48,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:48,017 INFO L93 Difference]: Finished difference Result 1513 states and 1811 transitions. [2024-12-02 15:23:48,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 15:23:48,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 125 [2024-12-02 15:23:48,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:48,023 INFO L225 Difference]: With dead ends: 1513 [2024-12-02 15:23:48,023 INFO L226 Difference]: Without dead ends: 1015 [2024-12-02 15:23:48,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 975 ImplicationChecksByTransitivity, 54.3s TimeCoverageRelationStatistics Valid=266, Invalid=3264, Unknown=10, NotChecked=0, Total=3540 [2024-12-02 15:23:48,025 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 69 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:48,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 350 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 190 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2024-12-02 15:23:48,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2024-12-02 15:23:48,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 826. [2024-12-02 15:23:48,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 756 states have (on average 1.1812169312169312) internal successors, (893), 758 states have internal predecessors, (893), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 15:23:48,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 989 transitions. [2024-12-02 15:23:48,214 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 989 transitions. Word has length 125 [2024-12-02 15:23:48,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:48,214 INFO L471 AbstractCegarLoop]: Abstraction has 826 states and 989 transitions. [2024-12-02 15:23:48,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:23:48,214 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 989 transitions. [2024-12-02 15:23:48,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 15:23:48,216 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:48,216 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1] [2024-12-02 15:23:48,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2024-12-02 15:23:48,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2024-12-02 15:23:48,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 15:23:48,617 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:48,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:48,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1587698359, now seen corresponding path program 1 times [2024-12-02 15:23:48,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:23:48,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650373113] [2024-12-02 15:23:48,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:48,618 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:23:48,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:23:48,620 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:23:48,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2024-12-02 15:23:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:49,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-12-02 15:23:49,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:49,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 15:23:49,385 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 16 treesize of output 12 [2024-12-02 15:23:49,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 15:23:49,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 24 [2024-12-02 15:23:53,348 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:53,348 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 27 [2024-12-02 15:23:53,925 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 65 treesize of output 45 [2024-12-02 15:23:53,931 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:53,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 45 treesize of output 21 [2024-12-02 15:23:54,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 15:23:54,103 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 30 treesize of output 1 [2024-12-02 15:23:54,365 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 40 treesize of output 39 [2024-12-02 15:23:54,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53 [2024-12-02 15:23:54,846 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:54,846 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 94 treesize of output 56 [2024-12-02 15:23:54,965 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:54,965 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 68 treesize of output 56 [2024-12-02 15:23:55,149 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:23:55,149 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 15:23:55,260 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 129 proven. 9 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-12-02 15:23:55,260 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:23:56,088 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-12-02 15:23:56,088 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:23:56,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650373113] [2024-12-02 15:23:56,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [650373113] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:56,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:23:56,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-12-02 15:23:56,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799324802] [2024-12-02 15:23:56,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:56,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:23:56,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:23:56,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:23:56,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=352, Unknown=1, NotChecked=0, Total=420 [2024-12-02 15:23:56,090 INFO L87 Difference]: Start difference. First operand 826 states and 989 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:24:01,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:24:05,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:24:09,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:24:13,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:24:17,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:24:21,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:24:21,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:21,725 INFO L93 Difference]: Finished difference Result 1445 states and 1740 transitions. [2024-12-02 15:24:21,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:24:21,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 125 [2024-12-02 15:24:21,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:21,730 INFO L225 Difference]: With dead ends: 1445 [2024-12-02 15:24:21,730 INFO L226 Difference]: Without dead ends: 935 [2024-12-02 15:24:21,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 226 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=72, Invalid=389, Unknown=1, NotChecked=0, Total=462 [2024-12-02 15:24:21,731 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 31 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:21,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 265 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 6 Unknown, 0 Unchecked, 25.3s Time] [2024-12-02 15:24:21,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2024-12-02 15:24:21,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 838. [2024-12-02 15:24:21,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 768 states have (on average 1.1783854166666667) internal successors, (905), 770 states have internal predecessors, (905), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 15:24:21,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1001 transitions. [2024-12-02 15:24:21,913 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1001 transitions. Word has length 125 [2024-12-02 15:24:21,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:21,913 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1001 transitions. [2024-12-02 15:24:21,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:24:21,914 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1001 transitions. [2024-12-02 15:24:21,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 15:24:21,915 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:21,915 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-12-02 15:24:21,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2024-12-02 15:24:22,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:24:22,115 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:22,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:22,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1548062245, now seen corresponding path program 1 times [2024-12-02 15:24:22,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:22,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315428101] [2024-12-02 15:24:22,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:22,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:24:22,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:22,118 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:24:22,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2024-12-02 15:24:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:22,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:24:22,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:22,565 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-12-02 15:24:22,565 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:24:22,565 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:22,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315428101] [2024-12-02 15:24:22,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315428101] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:24:22,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:24:22,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:24:22,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363874897] [2024-12-02 15:24:22,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:24:22,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:24:22,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:22,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:24:22,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:24:22,567 INFO L87 Difference]: Start difference. First operand 838 states and 1001 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:24:22,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:22,782 INFO L93 Difference]: Finished difference Result 1218 states and 1469 transitions. [2024-12-02 15:24:22,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:24:22,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 127 [2024-12-02 15:24:22,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:22,785 INFO L225 Difference]: With dead ends: 1218 [2024-12-02 15:24:22,785 INFO L226 Difference]: Without dead ends: 696 [2024-12-02 15:24:22,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:24:22,786 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 33 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:22,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 316 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:24:22,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-12-02 15:24:22,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 526. [2024-12-02 15:24:22,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 470 states have (on average 1.148936170212766) internal successors, (540), 472 states have internal predecessors, (540), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 15:24:22,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 616 transitions. [2024-12-02 15:24:22,923 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 616 transitions. Word has length 127 [2024-12-02 15:24:22,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:22,923 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 616 transitions. [2024-12-02 15:24:22,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:24:22,923 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 616 transitions. [2024-12-02 15:24:22,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 15:24:22,924 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:22,924 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:24:22,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2024-12-02 15:24:23,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:24:23,125 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:23,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:23,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1927429324, now seen corresponding path program 1 times [2024-12-02 15:24:23,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:23,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714266989] [2024-12-02 15:24:23,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:23,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:24:23,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:23,127 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:24:23,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2024-12-02 15:24:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:23,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 15:24:23,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:23,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 15:24:24,020 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 21 [2024-12-02 15:24:24,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-12-02 15:24:24,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 15:24:24,205 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 34 [2024-12-02 15:24:28,489 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:28,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2024-12-02 15:24:28,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 66 [2024-12-02 15:24:28,937 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:28,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 128 treesize of output 93 [2024-12-02 15:24:29,196 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:29,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 106 treesize of output 102 [2024-12-02 15:24:29,599 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:29,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 146 treesize of output 68 [2024-12-02 15:24:29,722 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 115 proven. 9 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-12-02 15:24:29,722 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:24:29,935 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-12-02 15:24:29,935 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:29,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714266989] [2024-12-02 15:24:29,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [714266989] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:24:29,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:24:29,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 21 [2024-12-02 15:24:29,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265688028] [2024-12-02 15:24:29,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:24:29,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:24:29,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:29,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:24:29,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=359, Unknown=1, NotChecked=0, Total=420 [2024-12-02 15:24:29,937 INFO L87 Difference]: Start difference. First operand 526 states and 616 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:24:30,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:30,492 INFO L93 Difference]: Finished difference Result 860 states and 1018 transitions. [2024-12-02 15:24:30,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:24:30,494 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 128 [2024-12-02 15:24:30,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:30,495 INFO L225 Difference]: With dead ends: 860 [2024-12-02 15:24:30,495 INFO L226 Difference]: Without dead ends: 513 [2024-12-02 15:24:30,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 234 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=72, Invalid=479, Unknown=1, NotChecked=0, Total=552 [2024-12-02 15:24:30,496 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 33 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:30,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 287 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:24:30,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-12-02 15:24:30,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 499. [2024-12-02 15:24:30,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 443 states have (on average 1.142212189616253) internal successors, (506), 445 states have internal predecessors, (506), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 15:24:30,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 582 transitions. [2024-12-02 15:24:30,688 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 582 transitions. Word has length 128 [2024-12-02 15:24:30,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:30,688 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 582 transitions. [2024-12-02 15:24:30,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:24:30,688 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 582 transitions. [2024-12-02 15:24:30,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 15:24:30,689 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:30,689 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:24:30,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2024-12-02 15:24:30,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:24:30,889 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:30,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:30,890 INFO L85 PathProgramCache]: Analyzing trace with hash -674902936, now seen corresponding path program 1 times [2024-12-02 15:24:30,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:30,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784539039] [2024-12-02 15:24:30,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:30,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:24:30,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:30,892 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:24:30,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2024-12-02 15:24:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:31,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 15:24:31,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:31,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 15:24:31,437 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:31,437 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 32 treesize of output 34 [2024-12-02 15:24:31,473 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:31,473 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 38 treesize of output 16 [2024-12-02 15:24:31,504 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-12-02 15:24:31,504 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:24:31,504 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:31,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784539039] [2024-12-02 15:24:31,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784539039] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:24:31,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:24:31,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:24:31,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612101735] [2024-12-02 15:24:31,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:24:31,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:24:31,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:31,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:24:31,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:24:31,505 INFO L87 Difference]: Start difference. First operand 499 states and 582 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:24:36,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:24:41,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 15:24:41,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:41,475 INFO L93 Difference]: Finished difference Result 1083 states and 1261 transitions. [2024-12-02 15:24:41,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:24:41,476 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 128 [2024-12-02 15:24:41,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:41,478 INFO L225 Difference]: With dead ends: 1083 [2024-12-02 15:24:41,478 INFO L226 Difference]: Without dead ends: 728 [2024-12-02 15:24:41,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:24:41,478 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 100 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:41,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 336 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 198 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2024-12-02 15:24:41,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-12-02 15:24:41,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 496. [2024-12-02 15:24:41,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 440 states have (on average 1.1272727272727272) internal successors, (496), 442 states have internal predecessors, (496), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 15:24:41,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 572 transitions. [2024-12-02 15:24:41,609 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 572 transitions. Word has length 128 [2024-12-02 15:24:41,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:41,609 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 572 transitions. [2024-12-02 15:24:41,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:24:41,609 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 572 transitions. [2024-12-02 15:24:41,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 15:24:41,610 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:41,610 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-12-02 15:24:41,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2024-12-02 15:24:41,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:24:41,811 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:41,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:41,811 INFO L85 PathProgramCache]: Analyzing trace with hash 16248904, now seen corresponding path program 1 times [2024-12-02 15:24:41,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:41,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482217504] [2024-12-02 15:24:41,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:41,812 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:24:41,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:41,813 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:24:41,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2024-12-02 15:24:42,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:42,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 15:24:42,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:42,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 15:24:42,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2024-12-02 15:24:42,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:42,585 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 44 treesize of output 54 [2024-12-02 15:24:42,649 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:42,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 63 treesize of output 63 [2024-12-02 15:24:43,137 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-12-02 15:24:43,138 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:24:43,138 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:43,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482217504] [2024-12-02 15:24:43,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482217504] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:24:43,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:24:43,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 15:24:43,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597109044] [2024-12-02 15:24:43,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:24:43,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:24:43,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:43,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:24:43,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:24:43,139 INFO L87 Difference]: Start difference. First operand 496 states and 572 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:24:44,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:44,180 INFO L93 Difference]: Finished difference Result 501 states and 577 transitions. [2024-12-02 15:24:44,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 15:24:44,181 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 129 [2024-12-02 15:24:44,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:44,183 INFO L225 Difference]: With dead ends: 501 [2024-12-02 15:24:44,183 INFO L226 Difference]: Without dead ends: 499 [2024-12-02 15:24:44,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:24:44,183 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 54 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:44,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 331 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 15:24:44,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-12-02 15:24:44,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 499. [2024-12-02 15:24:44,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 443 states have (on average 1.1241534988713318) internal successors, (498), 445 states have internal predecessors, (498), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 15:24:44,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 574 transitions. [2024-12-02 15:24:44,348 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 574 transitions. Word has length 129 [2024-12-02 15:24:44,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:44,349 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 574 transitions. [2024-12-02 15:24:44,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:24:44,349 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 574 transitions. [2024-12-02 15:24:44,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 15:24:44,350 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:44,350 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-12-02 15:24:44,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2024-12-02 15:24:44,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:24:44,550 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:44,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:44,551 INFO L85 PathProgramCache]: Analyzing trace with hash 18095946, now seen corresponding path program 1 times [2024-12-02 15:24:44,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:44,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760603605] [2024-12-02 15:24:44,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:44,551 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:24:44,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:44,553 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:24:44,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2024-12-02 15:24:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:24:45,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-12-02 15:24:45,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:24:45,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 15:24:45,369 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 16 treesize of output 12 [2024-12-02 15:24:45,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 15:24:45,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 24 [2024-12-02 15:24:45,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:45,438 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 27 [2024-12-02 15:24:46,020 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 65 treesize of output 45 [2024-12-02 15:24:46,024 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:46,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 45 treesize of output 21 [2024-12-02 15:24:46,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 15:24:46,201 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 30 treesize of output 1 [2024-12-02 15:24:46,346 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 29 [2024-12-02 15:24:46,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 43 [2024-12-02 15:24:46,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 98 [2024-12-02 15:24:47,255 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:47,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 151 treesize of output 124 [2024-12-02 15:24:48,411 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:24:48,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 124 [2024-12-02 15:24:48,712 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 120 proven. 20 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-12-02 15:24:48,712 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:24:51,254 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-12-02 15:24:51,254 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:24:51,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760603605] [2024-12-02 15:24:51,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760603605] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:24:51,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:24:51,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [21] total 31 [2024-12-02 15:24:51,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341560057] [2024-12-02 15:24:51,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:24:51,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 15:24:51,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:24:51,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 15:24:51,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=793, Unknown=0, NotChecked=0, Total=930 [2024-12-02 15:24:51,256 INFO L87 Difference]: Start difference. First operand 499 states and 574 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:24:59,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:24:59,079 INFO L93 Difference]: Finished difference Result 825 states and 952 transitions. [2024-12-02 15:24:59,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 15:24:59,080 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 129 [2024-12-02 15:24:59,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:24:59,082 INFO L225 Difference]: With dead ends: 825 [2024-12-02 15:24:59,082 INFO L226 Difference]: Without dead ends: 629 [2024-12-02 15:24:59,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 226 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=216, Invalid=1190, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 15:24:59,083 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 114 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:24:59,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 799 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-12-02 15:24:59,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-12-02 15:24:59,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 519. [2024-12-02 15:24:59,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 463 states have (on average 1.123110151187905) internal successors, (520), 465 states have internal predecessors, (520), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 15:24:59,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 596 transitions. [2024-12-02 15:24:59,232 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 596 transitions. Word has length 129 [2024-12-02 15:24:59,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:24:59,232 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 596 transitions. [2024-12-02 15:24:59,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:24:59,232 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 596 transitions. [2024-12-02 15:24:59,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 15:24:59,233 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:24:59,233 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-12-02 15:24:59,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2024-12-02 15:24:59,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:24:59,433 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:24:59,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:24:59,434 INFO L85 PathProgramCache]: Analyzing trace with hash 698154316, now seen corresponding path program 1 times [2024-12-02 15:24:59,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:24:59,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133735388] [2024-12-02 15:24:59,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:24:59,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:24:59,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:24:59,436 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:24:59,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2024-12-02 15:25:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:25:00,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-12-02 15:25:00,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:25:00,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 15:25:00,253 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 16 treesize of output 12 [2024-12-02 15:25:00,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 15:25:00,276 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 44 [2024-12-02 15:25:00,336 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:00,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 53 [2024-12-02 15:25:01,362 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 85 treesize of output 61 [2024-12-02 15:25:01,368 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:01,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 61 treesize of output 29 [2024-12-02 15:25:01,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 15:25:01,562 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 20 treesize of output 21 [2024-12-02 15:25:10,193 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:10,194 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 68 treesize of output 67 [2024-12-02 15:25:10,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 81 [2024-12-02 15:25:11,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 126 [2024-12-02 15:25:11,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:11,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 169 treesize of output 142 [2024-12-02 15:25:13,153 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:13,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 132 treesize of output 60 [2024-12-02 15:25:17,330 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 139 proven. 17 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-12-02 15:25:17,330 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:25:20,405 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-12-02 15:25:20,405 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:25:20,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133735388] [2024-12-02 15:25:20,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133735388] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:25:20,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:25:20,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [20] total 29 [2024-12-02 15:25:20,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810175528] [2024-12-02 15:25:20,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:25:20,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:25:20,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:25:20,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:25:20,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=653, Unknown=3, NotChecked=0, Total=812 [2024-12-02 15:25:20,407 INFO L87 Difference]: Start difference. First operand 519 states and 596 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:25:31,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:25:31,612 INFO L93 Difference]: Finished difference Result 834 states and 961 transitions. [2024-12-02 15:25:31,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 15:25:31,613 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 129 [2024-12-02 15:25:31,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:25:31,615 INFO L225 Difference]: With dead ends: 834 [2024-12-02 15:25:31,615 INFO L226 Difference]: Without dead ends: 618 [2024-12-02 15:25:31,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 228 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=206, Invalid=847, Unknown=3, NotChecked=0, Total=1056 [2024-12-02 15:25:31,616 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 136 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-12-02 15:25:31,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 561 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2024-12-02 15:25:31,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-12-02 15:25:31,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 519. [2024-12-02 15:25:31,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 463 states have (on average 1.1209503239740821) internal successors, (519), 465 states have internal predecessors, (519), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 15:25:31,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 595 transitions. [2024-12-02 15:25:31,772 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 595 transitions. Word has length 129 [2024-12-02 15:25:31,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:25:31,772 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 595 transitions. [2024-12-02 15:25:31,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:25:31,772 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 595 transitions. [2024-12-02 15:25:31,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 15:25:31,773 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:25:31,773 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-12-02 15:25:31,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Ended with exit code 0 [2024-12-02 15:25:31,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:25:31,973 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:25:31,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:25:31,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1362218952, now seen corresponding path program 1 times [2024-12-02 15:25:31,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:25:31,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772650872] [2024-12-02 15:25:31,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:25:31,974 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:25:31,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:25:31,976 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:25:31,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2024-12-02 15:25:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:25:32,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-12-02 15:25:32,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:25:32,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 15:25:33,183 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 59 treesize of output 41 [2024-12-02 15:25:33,187 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:33,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2024-12-02 15:25:33,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 15:25:33,499 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 20 treesize of output 21 [2024-12-02 15:25:42,436 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:42,436 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 58 treesize of output 63 [2024-12-02 15:25:42,737 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:42,737 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 85 treesize of output 43 [2024-12-02 15:25:42,943 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-12-02 15:25:42,944 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:25:45,948 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:25:45,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772650872] [2024-12-02 15:25:45,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772650872] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:25:45,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [830648885] [2024-12-02 15:25:45,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:25:45,948 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 15:25:45,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 15:25:45,950 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 15:25:45,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2024-12-02 15:25:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:25:47,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-12-02 15:25:47,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:25:47,942 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:47,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 15:25:57,814 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:25:57,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 103 treesize of output 65 [2024-12-02 15:26:02,647 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:26:02,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 65 [2024-12-02 15:26:03,165 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:26:03,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 65 [2024-12-02 15:26:28,953 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:26:28,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 87 treesize of output 76 [2024-12-02 15:26:36,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 64 [2024-12-02 15:26:45,403 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:26:45,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 88 [2024-12-02 15:26:45,477 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 139 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-12-02 15:26:45,477 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:26:50,957 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-12-02 15:26:50,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [830648885] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 15:26:50,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 15:26:50,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [18, 21] total 48 [2024-12-02 15:26:50,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107848081] [2024-12-02 15:26:50,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:26:50,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 15:26:50,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 15:26:50,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 15:26:50,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=2593, Unknown=14, NotChecked=0, Total=2862 [2024-12-02 15:26:50,959 INFO L87 Difference]: Start difference. First operand 519 states and 595 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:26:56,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:26:57,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:27:03,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:27:05,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:27:06,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:27:06,388 INFO L93 Difference]: Finished difference Result 829 states and 954 transitions. [2024-12-02 15:27:06,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:27:06,391 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 129 [2024-12-02 15:27:06,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:27:06,393 INFO L225 Difference]: With dead ends: 829 [2024-12-02 15:27:06,393 INFO L226 Difference]: Without dead ends: 613 [2024-12-02 15:27:06,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 72.1s TimeCoverageRelationStatistics Valid=286, Invalid=2892, Unknown=14, NotChecked=0, Total=3192 [2024-12-02 15:27:06,395 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 223 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2024-12-02 15:27:06,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 558 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2024-12-02 15:27:06,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2024-12-02 15:27:06,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 544. [2024-12-02 15:27:06,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 488 states have (on average 1.1229508196721312) internal successors, (548), 490 states have internal predecessors, (548), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 15:27:06,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 624 transitions. [2024-12-02 15:27:06,560 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 624 transitions. Word has length 129 [2024-12-02 15:27:06,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:27:06,561 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 624 transitions. [2024-12-02 15:27:06,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 15:27:06,561 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 624 transitions. [2024-12-02 15:27:06,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 15:27:06,562 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:27:06,562 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-12-02 15:27:06,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2024-12-02 15:27:06,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2024-12-02 15:27:06,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 15:27:06,962 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:27:06,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:27:06,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2042277322, now seen corresponding path program 1 times [2024-12-02 15:27:06,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:27:06,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542237853] [2024-12-02 15:27:06,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:06,964 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 15:27:06,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 15:27:06,965 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 15:27:06,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2024-12-02 15:27:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:07,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-12-02 15:27:07,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:27:07,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 15:27:08,101 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:27:08,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 21 [2024-12-02 15:27:08,835 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 16 treesize of output 12 [2024-12-02 15:27:08,977 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 34 treesize of output 27 [2024-12-02 15:27:09,201 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:27:09,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 55 [2024-12-02 15:27:09,482 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:27:09,483 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 96 treesize of output 97 [2024-12-02 15:27:09,871 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:27:09,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 90 treesize of output 93 [2024-12-02 15:27:13,976 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:27:13,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 114 treesize of output 54 [2024-12-02 15:27:14,291 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 139 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-12-02 15:27:14,291 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:27:18,775 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 53 [2024-12-02 15:27:24,692 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 15:27:24,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1542237853] [2024-12-02 15:27:24,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1542237853] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:27:24,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [557985303] [2024-12-02 15:27:24,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:27:24,692 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 15:27:24,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 15:27:24,694 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 15:27:24,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71be4837-84b3-4f3e-afbd-032c6133d134/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2024-12-02 15:27:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:27:26,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-12-02 15:27:26,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:27:26,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 15:27:26,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 13