./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.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_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/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_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/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_8dc384ed-cbdd-4324-b89e-941761c108d4/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 bb0766965719962bb88d82eca60f2d4be80ff0b6b6f05c2a75f9469a0fc9b6e7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:38:23,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:38:23,996 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:38:24,002 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:38:24,002 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:38:24,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:38:24,028 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:38:24,029 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:38:24,029 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:38:24,029 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:38:24,029 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:38:24,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:38:24,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:38:24,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:38:24,030 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:38:24,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:38:24,030 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:38:24,030 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:38:24,030 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:38:24,031 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:38:24,031 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:38:24,031 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:38:24,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:38:24,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:38:24,031 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:38:24,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:38:24,031 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:38:24,031 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:38:24,031 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:38:24,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:38:24,032 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:38:24,032 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:38:24,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:38:24,032 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:38:24,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:38:24,032 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:38:24,032 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:38:24,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:38:24,033 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:38:24,033 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:38:24,033 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:38:24,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:38:24,033 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:38:24,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:38:24,033 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:38:24,033 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:38:24,033 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:38:24,034 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:38:24,034 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_8dc384ed-cbdd-4324-b89e-941761c108d4/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 -> bb0766965719962bb88d82eca60f2d4be80ff0b6b6f05c2a75f9469a0fc9b6e7 [2024-12-02 13:38:24,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:38:24,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:38:24,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:38:24,320 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:38:24,320 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:38:24,321 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.i [2024-12-02 13:38:26,987 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/data/eb0bf8fb8/6cf539cb7db54d4b9159226b5d981ebe/FLAGdbe9ff859 [2024-12-02 13:38:27,253 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:38:27,254 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.i [2024-12-02 13:38:27,264 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/data/eb0bf8fb8/6cf539cb7db54d4b9159226b5d981ebe/FLAGdbe9ff859 [2024-12-02 13:38:27,544 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/data/eb0bf8fb8/6cf539cb7db54d4b9159226b5d981ebe [2024-12-02 13:38:27,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:38:27,547 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:38:27,548 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:38:27,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:38:27,552 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:38:27,553 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:38:27" (1/1) ... [2024-12-02 13:38:27,554 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@268a56a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:27, skipping insertion in model container [2024-12-02 13:38:27,554 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:38:27" (1/1) ... [2024-12-02 13:38:27,572 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:38:27,696 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_8dc384ed-cbdd-4324-b89e-941761c108d4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.i[917,930] [2024-12-02 13:38:27,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:38:27,773 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:38:27,783 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_8dc384ed-cbdd-4324-b89e-941761c108d4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.i[917,930] [2024-12-02 13:38:27,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:38:27,842 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:38:27,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:27 WrapperNode [2024-12-02 13:38:27,843 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:38:27,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:38:27,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:38:27,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:38:27,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:27" (1/1) ... [2024-12-02 13:38:27,862 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:27" (1/1) ... [2024-12-02 13:38:27,900 INFO L138 Inliner]: procedures = 30, calls = 151, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 481 [2024-12-02 13:38:27,901 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:38:27,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:38:27,902 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:38:27,902 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:38:27,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:27" (1/1) ... [2024-12-02 13:38:27,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:27" (1/1) ... [2024-12-02 13:38:27,915 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:27" (1/1) ... [2024-12-02 13:38:27,922 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-12-02 13:38:27,922 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:27" (1/1) ... [2024-12-02 13:38:27,922 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:27" (1/1) ... [2024-12-02 13:38:27,935 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:27" (1/1) ... [2024-12-02 13:38:27,936 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:27" (1/1) ... [2024-12-02 13:38:27,941 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:27" (1/1) ... [2024-12-02 13:38:27,944 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:27" (1/1) ... [2024-12-02 13:38:27,946 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:27" (1/1) ... [2024-12-02 13:38:27,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:38:27,952 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:38:27,952 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:38:27,952 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:38:27,953 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:27" (1/1) ... [2024-12-02 13:38:27,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:38:27,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:38:27,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:38:27,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:38:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:38:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-12-02 13:38:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-12-02 13:38:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-12-02 13:38:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 13:38:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-12-02 13:38:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 13:38:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 13:38:28,017 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 13:38:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 13:38:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:38:28,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:38:28,140 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:38:28,142 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:38:28,772 INFO L? ?]: Removed 140 outVars from TransFormulas that were not future-live. [2024-12-02 13:38:28,773 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:38:28,784 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:38:28,784 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:38:28,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:28 BoogieIcfgContainer [2024-12-02 13:38:28,785 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:38:28,787 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:38:28,787 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:38:28,792 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:38:28,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:38:27" (1/3) ... [2024-12-02 13:38:28,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2582c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:38:28, skipping insertion in model container [2024-12-02 13:38:28,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:27" (2/3) ... [2024-12-02 13:38:28,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2582c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:38:28, skipping insertion in model container [2024-12-02 13:38:28,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:28" (3/3) ... [2024-12-02 13:38:28,794 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-37.i [2024-12-02 13:38:28,811 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:38:28,812 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-sp_file-37.i that has 2 procedures, 105 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:38:28,867 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:38:28,878 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;@7baae01b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:38:28,878 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:38:28,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 88 states have internal predecessors, (124), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 13:38:28,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 13:38:28,895 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:28,896 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:28,896 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:38:28,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:28,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1984577287, now seen corresponding path program 1 times [2024-12-02 13:38:28,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:28,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040458831] [2024-12-02 13:38:28,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:28,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:29,248 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-12-02 13:38:29,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:29,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040458831] [2024-12-02 13:38:29,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040458831] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:38:29,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422809019] [2024-12-02 13:38:29,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:29,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:38:29,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:38:29,252 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:38:29,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:38:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:29,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 13:38:29,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:38:29,570 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-12-02 13:38:29,570 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:38:29,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422809019] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:29,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:38:29,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 13:38:29,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496588297] [2024-12-02 13:38:29,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:29,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:38:29,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:29,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:38:29,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:38:29,596 INFO L87 Difference]: Start difference. First operand has 105 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 88 states have internal predecessors, (124), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 13:38:29,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:29,624 INFO L93 Difference]: Finished difference Result 203 states and 317 transitions. [2024-12-02 13:38:29,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:38:29,626 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2024-12-02 13:38:29,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:29,632 INFO L225 Difference]: With dead ends: 203 [2024-12-02 13:38:29,632 INFO L226 Difference]: Without dead ends: 101 [2024-12-02 13:38:29,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:38:29,638 INFO L435 NwaCegarLoop]: 147 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, 147 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 13:38:29,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:38:29,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-12-02 13:38:29,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-12-02 13:38:29,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 84 states have internal predecessors, (117), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 13:38:29,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2024-12-02 13:38:29,679 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 124 [2024-12-02 13:38:29,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:29,679 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2024-12-02 13:38:29,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 13:38:29,680 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2024-12-02 13:38:29,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 13:38:29,683 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:29,683 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:29,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:38:29,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 13:38:29,884 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:38:29,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:29,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1790675531, now seen corresponding path program 1 times [2024-12-02 13:38:29,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:29,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855456569] [2024-12-02 13:38:29,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:29,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:30,233 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 13:38:30,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:30,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855456569] [2024-12-02 13:38:30,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855456569] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:30,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:30,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:38:30,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961923895] [2024-12-02 13:38:30,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:30,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:38:30,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:30,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:38:30,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:38:30,237 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 13:38:30,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:30,299 INFO L93 Difference]: Finished difference Result 202 states and 295 transitions. [2024-12-02 13:38:30,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:38:30,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2024-12-02 13:38:30,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:30,302 INFO L225 Difference]: With dead ends: 202 [2024-12-02 13:38:30,302 INFO L226 Difference]: Without dead ends: 104 [2024-12-02 13:38:30,303 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 13:38:30,303 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 1 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 421 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 13:38:30,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 421 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:38:30,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-12-02 13:38:30,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-12-02 13:38:30,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 86 states have (on average 1.3837209302325582) internal successors, (119), 86 states have internal predecessors, (119), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 13:38:30,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 149 transitions. [2024-12-02 13:38:30,316 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 149 transitions. Word has length 124 [2024-12-02 13:38:30,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:30,318 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 149 transitions. [2024-12-02 13:38:30,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 13:38:30,319 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 149 transitions. [2024-12-02 13:38:30,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 13:38:30,321 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:30,322 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:30,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:38:30,322 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:38:30,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:30,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1824233395, now seen corresponding path program 1 times [2024-12-02 13:38:30,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:30,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442453477] [2024-12-02 13:38:30,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:30,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:30,599 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 13:38:30,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:30,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442453477] [2024-12-02 13:38:30,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442453477] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:30,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:30,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:38:30,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383562500] [2024-12-02 13:38:30,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:30,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:38:30,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:30,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:38:30,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:38:30,602 INFO L87 Difference]: Start difference. First operand 103 states and 149 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 13:38:30,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:30,640 INFO L93 Difference]: Finished difference Result 206 states and 299 transitions. [2024-12-02 13:38:30,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:38:30,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2024-12-02 13:38:30,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:30,643 INFO L225 Difference]: With dead ends: 206 [2024-12-02 13:38:30,643 INFO L226 Difference]: Without dead ends: 106 [2024-12-02 13:38:30,643 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 13:38:30,644 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 1 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 422 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 13:38:30,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 422 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:38:30,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-12-02 13:38:30,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-12-02 13:38:30,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 88 states have (on average 1.375) internal successors, (121), 88 states have internal predecessors, (121), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 13:38:30,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 151 transitions. [2024-12-02 13:38:30,654 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 151 transitions. Word has length 124 [2024-12-02 13:38:30,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:30,655 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 151 transitions. [2024-12-02 13:38:30,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 13:38:30,656 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 151 transitions. [2024-12-02 13:38:30,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 13:38:30,657 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:30,658 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:30,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:38:30,658 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:38:30,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:30,659 INFO L85 PathProgramCache]: Analyzing trace with hash -49226033, now seen corresponding path program 1 times [2024-12-02 13:38:30,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:30,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431858377] [2024-12-02 13:38:30,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:30,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:32,388 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 13:38:32,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:32,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431858377] [2024-12-02 13:38:32,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431858377] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:32,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:32,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:38:32,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553141355] [2024-12-02 13:38:32,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:32,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:38:32,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:32,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:38:32,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:38:32,391 INFO L87 Difference]: Start difference. First operand 105 states and 151 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 13:38:32,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:32,850 INFO L93 Difference]: Finished difference Result 209 states and 301 transitions. [2024-12-02 13:38:32,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:38:32,851 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2024-12-02 13:38:32,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:32,852 INFO L225 Difference]: With dead ends: 209 [2024-12-02 13:38:32,853 INFO L226 Difference]: Without dead ends: 107 [2024-12-02 13:38:32,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:38:32,854 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 163 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:32,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 346 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:38:32,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-12-02 13:38:32,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2024-12-02 13:38:32,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 88 states have (on average 1.3636363636363635) internal successors, (120), 88 states have internal predecessors, (120), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 13:38:32,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 150 transitions. [2024-12-02 13:38:32,869 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 150 transitions. Word has length 124 [2024-12-02 13:38:32,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:32,870 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 150 transitions. [2024-12-02 13:38:32,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 13:38:32,870 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 150 transitions. [2024-12-02 13:38:32,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 13:38:32,872 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:32,872 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:32,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:38:32,873 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:38:32,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:32,873 INFO L85 PathProgramCache]: Analyzing trace with hash -388184328, now seen corresponding path program 1 times [2024-12-02 13:38:32,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:32,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304994962] [2024-12-02 13:38:32,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:32,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:35,182 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 13:38:35,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:35,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304994962] [2024-12-02 13:38:35,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304994962] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:35,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:35,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 13:38:35,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682098110] [2024-12-02 13:38:35,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:35,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:38:35,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:35,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:38:35,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:38:35,184 INFO L87 Difference]: Start difference. First operand 105 states and 150 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 13:38:36,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:36,019 INFO L93 Difference]: Finished difference Result 268 states and 385 transitions. [2024-12-02 13:38:36,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:38:36,020 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 127 [2024-12-02 13:38:36,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:36,022 INFO L225 Difference]: With dead ends: 268 [2024-12-02 13:38:36,022 INFO L226 Difference]: Without dead ends: 166 [2024-12-02 13:38:36,022 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:38:36,023 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 442 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:36,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 295 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:38:36,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-12-02 13:38:36,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 132. [2024-12-02 13:38:36,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 115 states have (on average 1.4086956521739131) internal successors, (162), 115 states have internal predecessors, (162), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 13:38:36,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 192 transitions. [2024-12-02 13:38:36,045 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 192 transitions. Word has length 127 [2024-12-02 13:38:36,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:36,045 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 192 transitions. [2024-12-02 13:38:36,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 13:38:36,046 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 192 transitions. [2024-12-02 13:38:36,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 13:38:36,048 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:36,048 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:36,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:38:36,048 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:38:36,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:36,049 INFO L85 PathProgramCache]: Analyzing trace with hash 891679350, now seen corresponding path program 1 times [2024-12-02 13:38:36,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:36,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594784339] [2024-12-02 13:38:36,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:36,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:37,655 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 18 proven. 24 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 13:38:37,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:37,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594784339] [2024-12-02 13:38:37,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594784339] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:38:37,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88075981] [2024-12-02 13:38:37,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:37,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:38:37,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:38:37,658 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:38:37,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:38:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:37,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 13:38:37,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:38:38,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 13:38:39,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 13:38:39,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 13:38:39,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 13:38:39,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-12-02 13:38:40,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:38:40,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:38:40,110 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-12-02 13:38:40,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 18 [2024-12-02 13:38:40,118 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-12-02 13:38:40,118 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 26 treesize of output 10 [2024-12-02 13:38:40,125 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 168 proven. 122 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-12-02 13:38:40,125 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:38:40,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88075981] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:38:40,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:38:40,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2024-12-02 13:38:40,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776405888] [2024-12-02 13:38:40,198 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:38:40,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 13:38:40,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:40,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 13:38:40,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-12-02 13:38:40,200 INFO L87 Difference]: Start difference. First operand 132 states and 192 transitions. Second operand has 15 states, 13 states have (on average 7.230769230769231) internal successors, (94), 15 states have internal predecessors, (94), 8 states have call successors, (30), 4 states have call predecessors, (30), 6 states have return successors, (30), 6 states have call predecessors, (30), 8 states have call successors, (30) [2024-12-02 13:38:41,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:41,276 INFO L93 Difference]: Finished difference Result 256 states and 366 transitions. [2024-12-02 13:38:41,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 13:38:41,280 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.230769230769231) internal successors, (94), 15 states have internal predecessors, (94), 8 states have call successors, (30), 4 states have call predecessors, (30), 6 states have return successors, (30), 6 states have call predecessors, (30), 8 states have call successors, (30) Word has length 127 [2024-12-02 13:38:41,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:41,281 INFO L225 Difference]: With dead ends: 256 [2024-12-02 13:38:41,281 INFO L226 Difference]: Without dead ends: 127 [2024-12-02 13:38:41,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2024-12-02 13:38:41,283 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 226 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:41,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 550 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 13:38:41,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-12-02 13:38:41,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 122. [2024-12-02 13:38:41,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 98 states have (on average 1.316326530612245) internal successors, (129), 99 states have internal predecessors, (129), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-12-02 13:38:41,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 171 transitions. [2024-12-02 13:38:41,302 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 171 transitions. Word has length 127 [2024-12-02 13:38:41,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:41,303 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 171 transitions. [2024-12-02 13:38:41,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.230769230769231) internal successors, (94), 15 states have internal predecessors, (94), 8 states have call successors, (30), 4 states have call predecessors, (30), 6 states have return successors, (30), 6 states have call predecessors, (30), 8 states have call successors, (30) [2024-12-02 13:38:41,303 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 171 transitions. [2024-12-02 13:38:41,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 13:38:41,304 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:41,304 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:41,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:38:41,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:38:41,505 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:38:41,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:41,505 INFO L85 PathProgramCache]: Analyzing trace with hash -897657418, now seen corresponding path program 1 times [2024-12-02 13:38:41,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:41,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487560660] [2024-12-02 13:38:41,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:41,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:43,579 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 13:38:43,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:43,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487560660] [2024-12-02 13:38:43,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487560660] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:38:43,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051813711] [2024-12-02 13:38:43,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:43,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:38:43,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:38:43,581 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:38:43,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:38:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:43,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-12-02 13:38:43,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:38:44,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 13:38:44,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 13:38:45,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 13:38:45,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 13:38:46,501 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 32 treesize of output 23 [2024-12-02 13:38:47,087 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 32 treesize of output 23 [2024-12-02 13:38:47,644 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 32 treesize of output 23 [2024-12-02 13:38:48,110 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 32 treesize of output 23 [2024-12-02 13:38:48,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:38:48,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:38:48,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:38:48,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2024-12-02 13:38:49,069 INFO L349 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2024-12-02 13:38:49,069 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 5 case distinctions, treesize of input 160 treesize of output 112 [2024-12-02 13:38:49,073 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-12-02 13:38:49,077 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 152 proven. 140 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-12-02 13:38:49,077 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:38:49,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051813711] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:38:49,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:38:49,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 24 [2024-12-02 13:38:49,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463164234] [2024-12-02 13:38:49,313 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:38:49,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 13:38:49,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:49,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 13:38:49,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=659, Unknown=0, NotChecked=0, Total=756 [2024-12-02 13:38:49,315 INFO L87 Difference]: Start difference. First operand 122 states and 171 transitions. Second operand has 24 states, 21 states have (on average 4.619047619047619) internal successors, (97), 24 states have internal predecessors, (97), 10 states have call successors, (30), 5 states have call predecessors, (30), 6 states have return successors, (30), 7 states have call predecessors, (30), 10 states have call successors, (30) [2024-12-02 13:38:51,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:51,847 INFO L93 Difference]: Finished difference Result 250 states and 338 transitions. [2024-12-02 13:38:51,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 13:38:51,847 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 4.619047619047619) internal successors, (97), 24 states have internal predecessors, (97), 10 states have call successors, (30), 5 states have call predecessors, (30), 6 states have return successors, (30), 7 states have call predecessors, (30), 10 states have call successors, (30) Word has length 127 [2024-12-02 13:38:51,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:51,849 INFO L225 Difference]: With dead ends: 250 [2024-12-02 13:38:51,850 INFO L226 Difference]: Without dead ends: 144 [2024-12-02 13:38:51,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=246, Invalid=1236, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 13:38:51,851 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 130 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:51,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 986 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 13:38:51,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-12-02 13:38:51,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 117. [2024-12-02 13:38:51,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 97 states have (on average 1.309278350515464) internal successors, (127), 97 states have internal predecessors, (127), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 13:38:51,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 157 transitions. [2024-12-02 13:38:51,869 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 157 transitions. Word has length 127 [2024-12-02 13:38:51,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:51,869 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 157 transitions. [2024-12-02 13:38:51,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 4.619047619047619) internal successors, (97), 24 states have internal predecessors, (97), 10 states have call successors, (30), 5 states have call predecessors, (30), 6 states have return successors, (30), 7 states have call predecessors, (30), 10 states have call successors, (30) [2024-12-02 13:38:51,870 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 157 transitions. [2024-12-02 13:38:51,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 13:38:51,871 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:51,871 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:51,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 13:38:52,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:38:52,072 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:38:52,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:52,072 INFO L85 PathProgramCache]: Analyzing trace with hash -835617804, now seen corresponding path program 1 times [2024-12-02 13:38:52,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:52,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992567241] [2024-12-02 13:38:52,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:52,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:56,140 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 13:38:56,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:56,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992567241] [2024-12-02 13:38:56,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992567241] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:56,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:56,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 13:38:56,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525677056] [2024-12-02 13:38:56,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:56,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 13:38:56,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:56,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 13:38:56,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:38:56,142 INFO L87 Difference]: Start difference. First operand 117 states and 157 transitions. Second operand has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 15 states have internal predecessors, (55), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 13:38:58,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:58,102 INFO L93 Difference]: Finished difference Result 232 states and 313 transitions. [2024-12-02 13:38:58,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 13:38:58,103 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 15 states have internal predecessors, (55), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 127 [2024-12-02 13:38:58,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:58,104 INFO L225 Difference]: With dead ends: 232 [2024-12-02 13:38:58,104 INFO L226 Difference]: Without dead ends: 118 [2024-12-02 13:38:58,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-12-02 13:38:58,105 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 454 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:58,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 455 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 13:38:58,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-12-02 13:38:58,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-12-02 13:38:58,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 98 states have internal predecessors, (128), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 13:38:58,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 158 transitions. [2024-12-02 13:38:58,124 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 158 transitions. Word has length 127 [2024-12-02 13:38:58,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:58,125 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 158 transitions. [2024-12-02 13:38:58,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 15 states have internal predecessors, (55), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 13:38:58,125 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 158 transitions. [2024-12-02 13:38:58,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 13:38:58,125 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:58,126 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:58,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:38:58,126 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:38:58,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:58,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1846735054, now seen corresponding path program 1 times [2024-12-02 13:38:58,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:58,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533832895] [2024-12-02 13:38:58,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:58,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:59,284 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 13:38:59,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:59,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533832895] [2024-12-02 13:38:59,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533832895] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:59,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:59,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:38:59,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572159710] [2024-12-02 13:38:59,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:59,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:38:59,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:59,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:38:59,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:38:59,286 INFO L87 Difference]: Start difference. First operand 118 states and 158 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 13:38:59,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:59,851 INFO L93 Difference]: Finished difference Result 238 states and 319 transitions. [2024-12-02 13:38:59,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:38:59,852 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2024-12-02 13:38:59,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:59,853 INFO L225 Difference]: With dead ends: 238 [2024-12-02 13:38:59,853 INFO L226 Difference]: Without dead ends: 123 [2024-12-02 13:38:59,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:38:59,854 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 256 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:59,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 436 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:38:59,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-12-02 13:38:59,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2024-12-02 13:38:59,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 101 states have (on average 1.297029702970297) internal successors, (131), 101 states have internal predecessors, (131), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 13:38:59,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 161 transitions. [2024-12-02 13:38:59,876 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 161 transitions. Word has length 127 [2024-12-02 13:38:59,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:59,876 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 161 transitions. [2024-12-02 13:38:59,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 13:38:59,876 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 161 transitions. [2024-12-02 13:38:59,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 13:38:59,877 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:59,877 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:59,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 13:38:59,877 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:38:59,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:59,877 INFO L85 PathProgramCache]: Analyzing trace with hash 444245874, now seen corresponding path program 1 times [2024-12-02 13:38:59,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:59,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040236530] [2024-12-02 13:38:59,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:59,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:39:01,457 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 13:39:01,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:39:01,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040236530] [2024-12-02 13:39:01,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040236530] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:39:01,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:39:01,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:39:01,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902697395] [2024-12-02 13:39:01,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:39:01,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:39:01,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:39:01,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:39:01,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:39:01,458 INFO L87 Difference]: Start difference. First operand 121 states and 161 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 13:39:02,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:39:02,180 INFO L93 Difference]: Finished difference Result 235 states and 313 transitions. [2024-12-02 13:39:02,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:39:02,180 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 127 [2024-12-02 13:39:02,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:39:02,181 INFO L225 Difference]: With dead ends: 235 [2024-12-02 13:39:02,181 INFO L226 Difference]: Without dead ends: 117 [2024-12-02 13:39:02,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:39:02,182 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 331 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:39:02,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 286 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:39:02,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-12-02 13:39:02,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-12-02 13:39:02,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 95 states have (on average 1.2842105263157895) internal successors, (122), 95 states have internal predecessors, (122), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 13:39:02,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 152 transitions. [2024-12-02 13:39:02,205 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 152 transitions. Word has length 127 [2024-12-02 13:39:02,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:39:02,205 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 152 transitions. [2024-12-02 13:39:02,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 13:39:02,206 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 152 transitions. [2024-12-02 13:39:02,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 13:39:02,206 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:39:02,206 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:39:02,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 13:39:02,207 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:39:02,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:39:02,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1582756759, now seen corresponding path program 1 times [2024-12-02 13:39:02,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:39:02,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048319876] [2024-12-02 13:39:02,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:39:02,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:39:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:39:02,790 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 13:39:02,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:39:02,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048319876] [2024-12-02 13:39:02,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048319876] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:39:02,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:39:02,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 13:39:02,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030057704] [2024-12-02 13:39:02,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:39:02,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:39:02,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:39:02,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:39:02,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:39:02,792 INFO L87 Difference]: Start difference. First operand 115 states and 152 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 13:39:03,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:39:03,286 INFO L93 Difference]: Finished difference Result 231 states and 306 transitions. [2024-12-02 13:39:03,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:39:03,287 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 129 [2024-12-02 13:39:03,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:39:03,288 INFO L225 Difference]: With dead ends: 231 [2024-12-02 13:39:03,288 INFO L226 Difference]: Without dead ends: 119 [2024-12-02 13:39:03,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:39:03,289 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 173 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:39:03,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 353 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:39:03,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-12-02 13:39:03,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2024-12-02 13:39:03,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 97 states have (on average 1.2783505154639174) internal successors, (124), 97 states have internal predecessors, (124), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 13:39:03,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 154 transitions. [2024-12-02 13:39:03,322 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 154 transitions. Word has length 129 [2024-12-02 13:39:03,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:39:03,323 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 154 transitions. [2024-12-02 13:39:03,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 13:39:03,323 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 154 transitions. [2024-12-02 13:39:03,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 13:39:03,324 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:39:03,324 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:39:03,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 13:39:03,324 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:39:03,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:39:03,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1584603801, now seen corresponding path program 1 times [2024-12-02 13:39:03,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:39:03,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659688141] [2024-12-02 13:39:03,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:39:03,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:39:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:39:06,981 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 13:39:06,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:39:06,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659688141] [2024-12-02 13:39:06,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659688141] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:39:06,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593854108] [2024-12-02 13:39:06,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:39:06,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:39:06,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:39:06,983 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:39:06,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc384ed-cbdd-4324-b89e-941761c108d4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 13:39:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:39:07,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-12-02 13:39:07,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:39:11,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:11,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:11,439 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2024-12-02 13:39:11,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 52 [2024-12-02 13:39:11,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:11,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:11,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:11,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:11,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:11,827 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-12-02 13:39:11,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 54 [2024-12-02 13:39:12,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,062 INFO L349 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2024-12-02 13:39:12,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 73 [2024-12-02 13:39:12,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,447 INFO L349 Elim1Store]: treesize reduction 97, result has 6.7 percent of original size [2024-12-02 13:39:12,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 94 treesize of output 81 [2024-12-02 13:39:12,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 13:39:12,849 INFO L349 Elim1Store]: treesize reduction 109, result has 13.5 percent of original size [2024-12-02 13:39:12,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 109 treesize of output 94 [2024-12-02 13:39:17,533 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:39:17,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 455 treesize of output 767 [2024-12-02 13:39:56,560 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 13:39:56,561 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:40:32,931 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse7 (select |c_#memory_int| c_~WrapperStruct00_var_1_7_Pointer~0.base))) (and (forall ((~WrapperStruct00_var_1_6_Pointer~0.offset Int) (v_ArrVal_1621 Int) (~WrapperStruct00_var_1_6_Pointer~0.base Int) (v_ArrVal_1626 Int)) (let ((.cse0 (let ((.cse4 (let ((.cse5 (let ((.cse6 (store |c_#memory_int| c_~WrapperStruct00_var_1_7_Pointer~0.base (store .cse7 c_~WrapperStruct00_var_1_7_Pointer~0.offset v_ArrVal_1621)))) (store .cse6 c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select .cse6 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset (select (select .cse6 c_~WrapperStruct00_var_1_16_Pointer~0.base) c_~WrapperStruct00_var_1_16_Pointer~0.offset)))))) (store .cse5 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse5 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (select (select .cse5 ~WrapperStruct00_var_1_6_Pointer~0.base) ~WrapperStruct00_var_1_6_Pointer~0.offset)))))) (store .cse4 c_~WrapperStruct00_var_1_11_Pointer~0.base (store (select .cse4 c_~WrapperStruct00_var_1_11_Pointer~0.base) c_~WrapperStruct00_var_1_11_Pointer~0.offset v_ArrVal_1626))))) (let ((.cse1 (select (select .cse0 c_~WrapperStruct00_var_1_14_Pointer~0.base) c_~WrapperStruct00_var_1_14_Pointer~0.offset))) (let ((.cse3 (mod .cse1 65536)) (.cse2 (select (select .cse0 c_~WrapperStruct00_var_1_16_Pointer~0.base) c_~WrapperStruct00_var_1_16_Pointer~0.offset))) (or (not (= (select (select .cse0 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset) .cse1)) (not (= (select (select .cse0 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset) .cse2)) (< .cse3 32768) (= .cse3 (+ 65536 .cse2))))))) (forall ((~WrapperStruct00_var_1_6_Pointer~0.offset Int) (v_ArrVal_1621 Int) (~WrapperStruct00_var_1_6_Pointer~0.base Int) (v_ArrVal_1626 Int)) (let ((.cse8 (let ((.cse12 (let ((.cse13 (let ((.cse14 (store |c_#memory_int| c_~WrapperStruct00_var_1_7_Pointer~0.base (store .cse7 c_~WrapperStruct00_var_1_7_Pointer~0.offset v_ArrVal_1621)))) (store .cse14 c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select .cse14 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset (select (select .cse14 c_~WrapperStruct00_var_1_16_Pointer~0.base) c_~WrapperStruct00_var_1_16_Pointer~0.offset)))))) (store .cse13 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse13 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (select (select .cse13 ~WrapperStruct00_var_1_6_Pointer~0.base) ~WrapperStruct00_var_1_6_Pointer~0.offset)))))) (store .cse12 c_~WrapperStruct00_var_1_11_Pointer~0.base (store (select .cse12 c_~WrapperStruct00_var_1_11_Pointer~0.base) c_~WrapperStruct00_var_1_11_Pointer~0.offset v_ArrVal_1626))))) (let ((.cse9 (select (select .cse8 c_~WrapperStruct00_var_1_14_Pointer~0.base) c_~WrapperStruct00_var_1_14_Pointer~0.offset))) (let ((.cse10 (select (select .cse8 c_~WrapperStruct00_var_1_16_Pointer~0.base) c_~WrapperStruct00_var_1_16_Pointer~0.offset)) (.cse11 (mod .cse9 65536))) (or (not (= (select (select .cse8 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset) .cse9)) (not (= (select (select .cse8 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset) .cse10)) (= .cse11 .cse10) (< 32767 .cse11)))))) (forall ((~WrapperStruct00_var_1_6_Pointer~0.offset Int) (v_ArrVal_1621 Int) (~WrapperStruct00_var_1_6_Pointer~0.base Int) (v_ArrVal_1626 Int)) (let ((.cse15 (let ((.cse19 (let ((.cse20 (let ((.cse21 (store |c_#memory_int| c_~WrapperStruct00_var_1_7_Pointer~0.base (store .cse7 c_~WrapperStruct00_var_1_7_Pointer~0.offset v_ArrVal_1621)))) (store .cse21 c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select .cse21 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset (select (select .cse21 c_~WrapperStruct00_var_1_16_Pointer~0.base) c_~WrapperStruct00_var_1_16_Pointer~0.offset)))))) (store .cse20 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse20 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (select (select .cse20 ~WrapperStruct00_var_1_6_Pointer~0.base) ~WrapperStruct00_var_1_6_Pointer~0.offset)))))) (store .cse19 c_~WrapperStruct00_var_1_11_Pointer~0.base (store (select .cse19 c_~WrapperStruct00_var_1_11_Pointer~0.base) c_~WrapperStruct00_var_1_11_Pointer~0.offset v_ArrVal_1626))))) (let ((.cse16 (select (select .cse15 c_~WrapperStruct00_var_1_14_Pointer~0.base) c_~WrapperStruct00_var_1_14_Pointer~0.offset))) (let ((.cse18 (mod .cse16 65536)) (.cse17 (select (select .cse15 c_~WrapperStruct00_var_1_16_Pointer~0.base) c_~WrapperStruct00_var_1_16_Pointer~0.offset))) (or (not (= (select (select .cse15 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset) .cse16)) (not (= (select (select .cse15 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset) .cse17)) (= .cse18 .cse17) (= .cse18 (+ 65536 .cse17))))))))) is different from false [2024-12-02 13:40:39,697 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 13:40:39,732 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 19887785682 treesize of output 19462720772